Macs can now inform Apple if any liquids have been detected in the USB-C ports
9to5mac.com
9to5mac.com
See, e.g., https://www.ti.com/product/TPS25751 in the features section.
Apple has historically used TI chipsets for their USB power controllers. The feature likely comes from this.
"The TPS25751 supports liquid detection by measuring the voltage level across the SBU pins of the Type-C connector. When a short occurs across the SBU pins to another Type-C pin(s), the TPS25751 takes action to protect the the Type-C port by disabling the power paths and notifies the embedded controller when applicable. Once liquid has been detected, the TPS25751 continuously monitors the SBU voltage. During the SBU voltage monitoring, if the liquid/short is no longer present the TPS25751 takes action to return to normal operation."
In other words, it's not actually detecting "liquids" but more of any conductive short. Non-conductive liquids, like oils and many other petroleum products, won't be detected.
Mostly yes, except for things like concentrated sulfuric acid which is highly corrosive but a bad conductor.
(And I'd probably watch it).
OTOH, I haven't seen any USB certifications on Apple USB cables or devices, so most likely Apple doesn't care.
This actually replaced the analog audio mode (good riddance- whoever thought adding analog audio into a port that also does digital audio was a good idea?)
Basically, it's only supposed to be used for USB-C-to-3.5mm adapters, and it was only implemented by some smartphones. It's not a reliable way to get audio out of a USB-C port, and because it's using the internal DAC the audio quality isn't going to be good anyways.
The proper solution is to use a USB DAC. This provides the same user experience but it actually works with all USB-C devices. Considering the official Apple USB DAC is available for $9, the Audio Alt Mode really doesn't have a reason to exist.
Unless I'm misunderstanding the mode, there could be uses to get audio out of a USB port that don't involve phones...
The ability to make this tradeoff should be up to the user.
The USB connector is detecting a short circuit--a direct connection between the two pins--and cutting power while the condition is present. If you wanted to put this in terms of household electrical, this would be closest to a self-resetting breaker. (And actually, most devices you have already _have_ this. There's usually a self-resetting fuse/PTC thermistor protecting your USB ports from over-current conditions. The only novel thing here seems to be that it's done in software.)
A GFCI, meanwhile, works by detecting in imbalance between the hot and neutral lines. The amount of current flowing through one should match the amount flowing through the other. If power is being drawn through the hot pin but not returning through the neutral, it has to be going _somewhere_ and it's not where we intended it to go. It cuts the power off rather than let it continue to flow out and find a path to ground through your kitchen sink/etc.
Even more nitpicky: it’s not a GFCI because GFCI does not detect current leakage between pins that shouldn’t carry current. It measures current imbalance between pins that should be carrying current.
The distinction is that a real GFCI (which this USB port is not) does not care whether the imbalance is returning through a third conductor on the power cord or some other path.
If this were a real GFCI, it would be able to detect when current flows out through the case, to your hand, though your body and then back though the puddle of watch you’re standing in.
That’s not what this is doing. It is measuring unexpected current between the pins within the port for the purpose of avoiding galvanic corrosion (the hint is in the daemon name reported by macrumors).
Smells of bad engineering - do they also have a batteryislowd? or a someonepressedtheMkeyonthekeyboardd?
> someonepressedtheMkeyonthekeyboardd
"Pages would like to access the 'M' key"
"Open System Preferences" "Deny"
It prevents the device from applying/draining power from any pin in such a state, mainly to reduce corrosion of the contacts and increase longevity.
(Without such a mechanism, an IPxx device may be unable to charge within a few weeks as the contacts of the connector can deteriorate quite fast)
As to why Apple ported the daemon from iOS to macOS....well, for sure a good indicator to reduce warranty repair-costs...
Less frequent of an issue for laptops I would hope :D
They don't even want to perform out of warranty, paid repairs if any of the liquid sensors are tripped. A few years back I had an MBP that the battery had worn out on, but several years before, I had spilled some water on the keyboard. The computer was none the worse for wear -- I dried it out quickly and it was fine, but when the battery wore out and I wanted it replaced, they wanted me to pay $1500 for a new motherboard before they would be willing to replace the battery.
This is both not true and so hyperbolic it's ridiculous. IP68 is only colloquially "waterproof" as none of the IP ratings have an indefinite exposure time.
I have had the battery replaced under warranty without issue.
Is that on Youtube or similar? :)
I know this because we’ve used our iPhone 11s for years in the pool, bath, etc. and never had an issue on a warranty status or battery replacement. They do check that for battery repairs because of the safety issues but you won’t get it for any use which doesn’t result in water inside the case.
>> Apple’s limited warranty doesn’t cover damage caused by liquids, even for water-resistant products like the iPhone, Apple Watch, and some AirPods models.
https://support.apple.com/en-us/108039
> Because it’s not Apple.
It is.
https://support.apple.com/en-us/108039
> These iPhone models are splash, water, and dust resistant and were tested under controlled laboratory conditions...
I'd only removed my phone from my waterproof jacket pocket on two occasions to verify GPS location as I was still using a laminated map and compass.
This weather descended on me in about 10 minutes, I did not choose to be soaked.
Sounds like taking an iPhone camping in parts of the UK where the weather can do this is now an absolute no.
The pixel was fine btw, didn't stop working, and as soon as the air was less like soup it told me the water had cleared. Wouldn't want that to have been a warranty voiding event on a newer device though (I'm probably already out of warranty).
Apple replaced the battery in it last week without a whimper and I expect they would do the same in the future.
If I did this to my MacBook they probably would not. Which is the point.
Wonder how my warranty's doing.
My favorite is that you were lying passed out in a gutter all night with water rushing over you. And the phone. But you only mentioned the phone. lol.
How is your warranty doing? ;-)
I did something similar many years ago with a Motorola razr phone. I was digging trenches for an irrigation system. I checked for my phone a day later and had no idea where it went. My best guess is that it fell out of my pocket and into the trench, which was subsequently covered up.
I joke that one day a more advanced civilization will dig up this ancient artifact, wonder what its purpose could have been, and make up some fantastical story after the fact as to why it ended up in that shallow trench.
EDIT: to be clear, the warranty can absolutely be a factor! Depending on your situation, having a phone with a warranty (or maybe insurance) which covers water damage could be a good idea! It's just not as simple "water detected in USB port -> warranty void", and this "prevent charging when there's water in the port" thing seems to be there not to insta-void your warranty but to prevent water damage
The real world is analogue and not a binary on/off setting you click in a config file. "Make this thing indestructable"
There is an infinite sliding scale from normal air humidity to the corrosive wetness of a tropical rainforest near a saltwater ocean or the difference being splashed with a few raindrops to being submerged for 100 years at the Mariana Trench.
Pure not salt water or tap water, not contaminated toilet water where most phones seem to end up. And only for a certain time at a certain depth (pressure). And not pressurized just static.
Maybe they should be named USB-Sea? /s
I agree it's resistant and it does what you say... But the way they advertise it....
It's been a massive gaslighting campaign.
The vast majority seem to want large screens. Currently the only compromise are flip phones. I considered buying the Z Flip 5, but the screen protector needs to be replaced by Samsung to maintain warranty and there is no Samsung Store nearby. I asked and Samsung said I'd have to send it to them, losing my phone for a couple of days. No thanks.
Vast majority doesn't know what they want. They would convince themselves that whatever is currently sold must be good. But then I know at least 10 people who truly want a small phone. I'm not the only one. There's clearly a demand for phones for people for whom their computer is still their primary device.
The world would've been a better place if every single phone manufacturer didn't copy the others. It's a vicious circle.
Also I just love some features of the Android ecosystem like the desktop mode (Samsung DeX and alternatives)
I knew before scrolling down that such a comment would be there.
an iphone costs easily 5x-7x more than an android phone. Most people just want a phone that can do messages, calls, and has a gps. There haven't been any non-overpriced smaller smartphones lately.
And by the way, high-quality Android phones cost comparable to iPhones. Keep in mind that Apple is simply not interested in the budget segment.
You can get a lot of great/premium Android phones in the 500-800 bracket (Nothing Phone 2, S23, Pixel 8).
Could I pay 1000€ for a phone? Yes. But I don't want to deal with the feeling of dread every time it slips out of my pocket.
The only pain point with my current phone is the camera is still effectively 10 year old hardware. I would like a nicer camera and I could probably find that on a similarly priced and sized android phone if I really wanted to I’ll admit. That said, I’m worried what the next generation of SE will end up being. I’m going to guess it’ll be physically bigger and I’ll have to say goodbye to TouchID (which I vastly prefer to FaceID). I love this phone otherwise and am in no hurry to replace it. Outside of the camera, the parts of its design that are stuck in the past are the things I love about it.
Flagship android phones from every major vendor are priced to compete with iPhones though and let’s not pretend otherwise. You can spend more on an android phone now than an iPhone if you’re so inclined.
With Apple's Vision Pro and its controls based on eye movement and finger gestures in mind I think this might become a thing on larger sized phones as well. For example a dedicated button at the bottom of the screen that will just click wherever I look. At least I'd prefer that over having to do finger gymnastics on a 6 inch screen.
But calling those "revealed preferences" is a sleight-of-hand. It takes all those external factors and treats them as something intrinsic about the buyer, to be "revealed" by the market. The term itself is a lie.
I suspect there was more than one variable involved and so the entire idea that there is any correlation is flawed.
The S5 had a swipe fingerprint reader integrated into the home button.
https://www.samsung.com/levant/support/mobile-devices/galaxy...
[1]: https://www.sony.com/electronics/support/mobile-phones-table...
Is this true for other HNers also?
Do you think i chose my keyboard? No, our IT budget is too low to buy me the 50€ keyboard I'd actually want. For some reason we can afford 200€ wireless headphones that have jittery sound however.
People here but cheap phones (100€-200€) due to the low wages. Most of those still feature the jack. Turns out that they still prefer wired earbuds when given an actual choice. Because wireless earbuds (eg Redmi airdots) cost 10€ here now so they're accessible to anyone.
But that's just at the office. For casual use out and about, it's all wireless - simply because cables are annoying to store and they break way too easily.
I still use wired (with a dongle) for calls, since Bluetooth Headset profile sounds like crap and I have enough trouble understanding people/being understood as it is. MagSafe helps with charging when the port is in use.
People love to complain about the dongle but really it just adds a couple of inches to the wire. If you can deal with the wire you can deal with a wire with USB-C on the end.
Besides the charging issue wired headphones are:
- better value, $35 will get you a decent sound - compatible with music production equipment - low-latency - save your phone if you drop it - impossible to lose one side.
At work they gave me some wireless ones… they cost about 200€. They occasionally lose connection despite the receiver being ~1m away and the sound jumps.
I used to, but I realised that my mid-40s ears are now the limiting factor, so I might as well have the convenience of wireless.
The real problem isn't 'another device to charge' though, it's battery degradation and the wasteful, disposable nature of Airpods.
Personally: Yes. Absolutely.
Even if I'm listening to just MP3s instead of FLACs, I can immediately notice that the wired headphone connection is better than wireless in both quality and latency. It's easy to compare since the headphones I use when travelling can do both, and I've used both as practicality demands.
The best wireless has to offer still can't hold a candle to good old wired.
> Apple’s limited warranty doesn’t cover damage caused by liquids, even for water-resistant products like the iPhone, Apple Watch, and some AirPods models.
But the article is kind of all over the place. It then says Macs can now detect water in USB-C ports while having pictures in the article of iPhones showing messages that they detected liquids. They like to make the point that Macs will report this back home to the mothershop while iPhones do not? idk
Let's assume on Macs this is used to void warranty because like you said, they are not sold as waterproof. On iPhones it's to alert the user, so he can remove the water from the port - not concerning warranty?
They will even refuse to install a new battery if you pay them.
I once went in for an out of warranty replacement where I said it was water damage and my phone was in the washing machine. The guy still went back to check the stickers and said "It must really been wet because it triggered all of the stickers" I pointed out it literally had water pouring out of it when I got it out of the washing machine. Fun fact, it was still powered on and operating when it came out of the washing machine for a few minutes then it went dead.
The laptop has never gotten wet, and everything apart from the M key was working perfectly.
Whenever there is a 'detection' method it's almost never foolproof and usually pretty junk.
For me at least, add it to the list of reasons why "never Apple", dirty broken process by another corrupt tech company.
On a phone with triggered water detector stickers? Yeah. Common sense. Why the hell would I work a device that might be damaged already? If something goes wrong after the repair due to the pre-existing damage it becomes a finger pointing game. Fuck that
I know this because I had an iPhone display start acting odd shortly after a battery replacement. They opened it up and reported water damage, but the pictures they take before every repair showed that the same indicators were not triggered two days before, and I ended up getting a replacement phone because the water seal was probably effective for 5 years prior to the battery replacement.
While it COULD mean you used the device out of spec, it could just as easily mean THEY MESSED UP when manufacturing your device.
On the whole, its more likely that your phone had a pinhole defect from the factory than you ran into 3+ feet of water and threw your phone in.
If they can't prove they did waterproof compliance testing my specific device before they shipped it, then they should be assumed to be responsible.
If the product meets the advertised water resistance, damage caused by liquids must be caused by usage outside of that.
So, _if_ they can prove their product meets or exceeds those specs, I think it’s fine they won’t cover that under warranty, as long as local laws don’t force them to do more (in the EU, for newish devices, they’d have to proof that the device wasn’t already broken when sold, for example)
""" iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XS, iPhone XS Max, iPhone XR, iPhone SE (2nd generation), iPhone SE (3rd generation), iPhone 11 Pro, iPhone 11 Pro Max, iPhone 11, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 12, iPhone 12 mini, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 13, iPhone 13 mini, iPhone 14 Pro, iPhone 14 Pro Max, iPhone 14, iPhone 14 Plus, iPhone 15 Pro, iPhone 15 Pro Max, iPhone 15 and iPhone 15 Plus are splash, water and dust resistant and were tested under controlled laboratory conditions; iPhone 12 Pro, iPhone 12 Pro Max, iPhone 12, iPhone 12 mini, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 13, iPhone 13 mini, iPhone 14 Pro, iPhone 14 Pro Max, iPhone 14, iPhone 14 Plus, iPhone 15 Pro, iPhone 15 Pro Max, iPhone 15 and iPhone 15 Plus have a rating of IP68 under IEC standard 60529 (maximum depth of 6 metres up to 30 minutes); iPhone 11 Pro and iPhone 11 Pro Max have a rating of IP68 under IEC standard 60529 (maximum depth of 4 metres up to 30 minutes); iPhone XS, iPhone XS Max and iPhone 11 have a rating of IP68 under IEC standard 60529 (maximum depth of 2 metres up to 30 minutes); and iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XR, iPhone SE (2nd generation) and iPhone SE (3rd generation) have a rating of IP67 under IEC standard 60529 (maximum depth of 1 metre up to 30 minutes). Splash, water and dust resistance are not permanent conditions. Resistance might decrease as a result of normal wear. Do not attempt to charge a wet iPhone; refer to the user guide for cleaning and drying instructions.
Liquid damage not covered under warranty. """
My Samsung S8 was waterproof and had the jack. And it was just as thin as an iPhone.
Oddly, charging when on (ie not completely dead), this feature doesn't trigger the alarm.
I really dislike this feature.
It's probably a not-entirely-compliant USB implementation on the phone.
Guess what is more annoying than a loud sound.
Happens a lot for people who leave USB-C cables in the bottom of bags and they get dirt in the connector (and possibly the residue from that beer that exploded in your bag last year and the sugary water never quite evaporates)
This function measures the voltage drop between two pins and plays a sound when it is too high. So it is possible:
- to just not play a sound, and have it silently switch off the connector (this would feel like a broken cable to you, but at least wouldn't annoy)
- that the threshold is not well adjusted. But this is not rocket science, but simple Ohms law stuff, so I doubt this is the problem
- you could just not have that protection and live with what happens to the IC inside when those pins are shorted. That could be any number of things, most of them more annoying than a sound
Unless you want to change basic laws of physics or the USB-C spec these are the options.
> You really dislike a feature that plays a loud sound instead of shorting pins in you USB-C connector together?
The instead here splits the sentence into those two options. Either a sound is played loudly or pins are shorted. That's how the sentence you wrote is structured, anyway.
Clearly that's not how you considered the situation, but yes, you did claim there were two options.
Could this by why I hear a really loud buzzing sound when I connect my laptop to a thunderbolt docking station?
The sound only happens for a fraction of a second, and doesn't happen every time; but now that you mention it, it does have the acoustic properties of a warning buzzer!
All components genuine AFAIK and supplied by the same vendor, Toshiba/Dynabook; but I wonder if a failing component somewhere causes a bad state that some component detects, triggering this warning sound...
It's not even a new trick, some scammy repair companies here in Europe loved to claim water damage to avoid warranty repairs.
It’s actually impressive how resilient phones are.
I have a Mac from 2016, probably had a minor water event, water spilled on table and slightly touched the chasis. I don't remember anything significant. The battery lasts 20 minutes in 2021, I go and ask them to replace it and they refuse because of "water damage" and warn that the machine can fry at any moment. The laptop is still running fine daily in 2024.
They can only "fix it" by charging more than a price of Macbook Air M1, they do not want to replace the battery but the whole board.
Once the computer is old enough I’d seek out an indie if possible, same for my cars if I can’t fix the issue or don’t have time.
I'm incredibly leery of this functionality being used to deny warranty claims as a result.
It seems like they could easily make the macbook air waterproof at this point, if they were so inclined.
What do people who want use their macs out in the field do?
"Out in the field" jobs? That's typically stuff for heavily rugged Windows laptops (e.g. Panasonic Toughbook). I wonder what you could use a Mac device for in that area, the software used for such jobs (e.g. industrial control, car programming or mapping stuff) is almost exclusively Windows-only.
I wonder why Apple has never considered making a toughbook type machine for real field work.
Macbooks are supposed to look like jewelry.
There are a few exceptions. I wonder how many Mac pros they really sell. I assume it’s really a “halo” product that sells more Mac studios and MacBook pros.
Also the Mac in general is a low volume product for Apple. It’s 10% of units in the PC market (but what % of profit?) and about 10% of their revenue. (If they were truly run with a bean counter mentality would they even ship Macs?)
Don't forget Apple's size... the AirPod business, stood alone, would be a Fortune 500 company. Even if an Apple business is a bit small compared to the iPhone, it's still a humongous business by any other comparator.
I'm not an Apple fanboy (e.g. I use an old Chinese Android phone) but I'm still awed by their business.
Apple at the moment doesn't have any marketshare in rugged, "out in the field" laptop computers. Obviously if any company can brute force an entry into any market it's Apple, but they would need significant investments into third parties that hold potential customers hostage to Windows, and Apple Just Does Not Do That unless the third party in question is a direct supplier of theirs.
There are backpacks with bottle holders on the outside, but in my experience, those aren’t very good at holding a bottle.
Not bringing a bottle probably is the best option, but that may not be a good option in very hot climates.
And some backpacks actually have working bottle holders on the outside ...
How would you avoid water damage due to the scenario? Or do you consider it normal and unavoidable?
Most of my cases where me toppling over some classes or bottles in a way where the liquid ended up directly on the open laptop.
On the other hand in my bag I normally have the Laptop in an additional sleeve, sometimes a double one, so any case where liquid ended up spilling in my backpack it at most lead to a slightly damp laptop due to the sleeves getting wet but nothing which causes water damage.
As a side note if used correctly a simple plastic bag (like a thing plastic shopping bag) as an additional sleeve around you laptop sleeve can be a trivial cheap way to get a surprising amount of waterproofing a laptop in a backpack. I don't do this on a daily basis but when traveling or similar I always hope to not forget to do it.
An iPad on the other hard would be pretty easy to make fully waterproof like the phones, since it only has a couple of buttons and one port.
2023 rant: if I press the button on my watch and tell Siri to “start swim workout” when I’m in the water, my watch still expects me to press a button on the screen while I’m in the water.
The idea that is single spilled coffee can cause $1000 of damage or more to a laptop is ridiculous.
But anyway, if you are like me with arm mobility issues and in danger of spilling stuff on your laptop, get some custom made rugged laptop because no manufacturer cares anymore; if anything, they seem to care the other way round.
The latter period of the G5, were water cooled, IIRC. They suffered from problems due to corrosion, though.
iPhones are not waterproof, they're IP68 water resistant. Apple even describes the port as being a liquid egress (and thus ingress) point in their public "oops I dunked my phone in water" support documentation.
Dry your iPhone:
1. Tap your iPhone gently against your hand with the connector facing down to remove excess liquid. Leave your iPhone in a dry area with some airflow
https://support.apple.com/en-us/102643Taking care to remove liquid from the port just as well makes sense simply because you do not want to have water in there when you plug the phone in and water in ports just doesn’t dry as easily as water on some surface.
In practice iPhones are (like nearly all modern phones) extremely water resistent and very unlikely to be water damaged by exposure to water or even immersion in water.
Phones are quite durable. Exposure to water is always a risk, obviously (so is any handling of an untethered phone in the presence of hard surfaces) but I would argue it‘s one you can reasonably take.
For my personal risk tolerance I sometimes rinse my phone in running water (taking care not to directly point the running faucet at any of the openings of the phone), I generally don’t worry about spills (so the phone might be on the kitchen counter where spills are likely) and I also took it out into the sea to take some photos (but did not submerge it).
If you don't have a fan making everything else but the keyboard(and mousepad) water resistant is not hard, and with a bit more trickery about how the keyboard are connected you can get to everything but keyboard waterproof too.
Issue is then you also need a easy replaceable keyboard and hand replacement keyboard out so that people can have them ready them "just in case".
Which both doesn't seem in the interest of Apple if you look at their actions in recent years.
I think currently the best chance for a new consumer laptop which is water proof and convenient to use would be a tablet which has no fan but still provides okay performance and then some "dock on" keyboard like e.g. in the style of the Microsoft Surface or similar. Then you could have a version where the keyboard is also water proof or a version where if it drops in water you replace the nicer to use keyboard with a new one etc.
Water bridging a connection and the connector being broken are indistinguishable to the device.
A few times I thought one had worn out and wouldn’t make a solid connection anymore, but it was always just lint in the port and could be fixed by cleaning it.
I tried to get 3 monitors working on a work Mac with a new triple DisplayPort dock and had a terrible time, I went back to my Linux desktop since I can easily get smooth 165hz native performance on three monitors
I don't believe that triple DisplayPort works well with mac. I believe two is the limit.
https://support.apple.com/kb/SP854?viewlocale=en_SA&locale=e...
Then even with a newest M3 model apples somehow assumes that external monitors with less resolution then 6k don't exist hence anything but MAX models only supports 2 external monitors even if they are all 1080p. Through to be fair 3+ external monitor setups aren't that common with larger/higher resolution monitors.
And issues with dasy chaining monitors seem somewhat common, but that's hearsay so maybe not true.
Daisy chaining monitors via thunderbolt has always had problems since it came out. Some monitors just don’t play nice with each other.
My Thinkpad from 2013 supports 3 external displays.
It's like someone walking into your house and installing a little block box in the corner of the room and walking out, and maybe later on they'll let you know what they're doing with this device but maybe not.
This will be my last mac unfortunately, which is a pity because I do love the hardware.
Yesterday I dropped the phone into a hot bowl of soup. I took it out, rinsed it under a faucet to get the soup off it, and dried it with a towel.
Good as new.
All of my Android Galaxy SXX phones have survived tons worse.. repeatedly.
I treat the new iPhone I had to buy as if it were made of porous glass.
Edit: Thanks everyone for the additional data points!
I also wash my phone under the tap regularly (weekly or more) because I spend lots of time in a grimy workshop for hobbies.
Only one data point but the waterproof aspect of modern phones is one of my absolute favorite developments.
>the waterproof aspect of modern phones is one of my absolute favorite developments.
IP68 is water resistant, not waterproof.
For most cases where it matters the device is waterproof for the average consumer
I don't understand why people put cases anymore.
Personally, because I hate the camera bumps. So I have a case that’s thick enough that allows my phone to lay dead flat on the table. Which is the only reason for me to use a case.
I probably drop my phone on concrete or tile at least once every couple months.
I’ve broken my fair share. I’ve also had a couple that didn’t shatter but had chips and separation develop around the edges. Matter of time before water kills one like that.
Mine thinks there is water in the port every time I forget to blow the dust out of it after weeks of non-use.
And now, jailbreaking will mean being able to reset tattletaled.
I once received an iPod I sent to Apple with grass inside when it was returned to me and have never trusted them since.
Very bizarre regarding your iPod! What is your working theory for that?
Many countries (sans USA probably) have rights of warranty for consumers, that companies policies cannot override.
If there is genuine water damage, of course that’s not warranty. It’s how they assess it that could be problematic.
Years ago my cat knocked the bong over into the keyboard of my Dell laptop, and they happily replaced it (the keyboard, not the bong). The nice lady doing the extended warranty on-site repair cheerfully held her nose and winked at me, and I sheepishly shrugged back and pointed at the naughty cat, but she didn't give me any flack about it.
Apple sent me my iPod back with blades of Poaceae stuck inside between the back and front covers.
I would not be surprised if hot humidity is also an issue with these sensors, which seem to be a user-hostile feature in any case.
Jailbreaking will be able to stop future reports, but it can't take back the reports that it already uploaded to the Apple mothership.
Why stop here. Next detect also the type of liquid. Bonus points for body fluids. /s
it mainly means even more rightfully warranty claims which have nothing to do with water damage being rejected as water damage
apple repair is already somewhat notorious for this wrongful rejections as the "water intrusion" sensors in their laptops are so sensitive that it's pretty common for them to trigger without there being anything anywhere close to water damage (like you had you window open in the neighbor room on a rainy day; not joking here)
worse if they trigger not only do they reject warranty they do also (often? always?) reject doing repairs at all even if you pay for (but then apple anyway mostly only replaces major parts making many "small easy" repairs unreasonable expensive).