One huge difference I've noticed between HQB (and other smaller electronics markets I've been to elsewhere in China) and whatever repair shops still exist in the West is how much more interactive the whole experience is. I once went to HQB with a friend who wanted to get his laptop fixed, and the serviceperson (who also happened to be female --- another thing first-time visitors may be surprised by is the nearly 50/50 gender ratio) would take it apart and diagnose while talking to us, showing exactly what the problem was. They had run out of the part that needed replacement, but instead of telling us to come back later, she left her stall and lead us to another store in the same building to buy a reel of it, then went back and replaced it, showed us that it now worked, and asked a very reasonable price. The shop had several stalls of others doing the same thing, and a pretty long line of people waiting too.
It's a huge contrast to more "Western" repair experiences, where you're lucky to have it done on the same day, much less get to see the process or be told what the problem was.
We could only pray that the western repair shop sends the board somewhere for refurbishment.
As hardware becomes more all-in-one, your cost of labor for knowledge of desoldering a single piece becomes more and more.
Noone wants 'repaired goods' in the US.
The fellow in Shenzhen is probably getting paid hundreds of dollars per month. (Just a guess, I know SZ is expensive, but has lots of labour coming from outer lying areas).
Even if it cost 10x labour for the procedure of turning a 16gb iPhone into a 128gb, it would be worth it.
But I don’t think you could train the average Western worker to become a BGA solder worker and reflasher and have them work for you for more than 6 months before racing to a higher paying job.
There is little proper education for something like BGA soldering, and if there is then you're more likely to get a job as an engineer.
Trivial thing happened to my headphones. The wire broke very close to the jack plug because of the frequent bending. There was a young guy there, I told him what happened using my broken Japanese, he patiently listened, took the headphones, made some basic check on them, took my phone number and told me to come in 30 minutes. In 20 minutes I got call that it's done. When it came to payment he asked me how much, I think, I should pay. I've been oblivious so he proposed 500 JPY, which is close to nothing, considering that I've had no tools and spare parts.
London, UK - the same situation happened. I've been told to throw it away.
UK has destroyed the supply chains, the experience, or the ability to train or employ such people any more except in very exceptional cases. End result is few have even seen a jack plug or mains plug that's not moulded or would know where to start.
So we have shops that have no idea how to fix a broken plug or cable, and jewellers that have to return a watch to the manufacturer for a battery change. I'd guess in 1980-1990 most shops on Tottenham Court Road could have soldered a new one, along with most similar shops around the country now they're all just box shifters.
You litteraly cannot find ANY electronics shop in Paris (there were still a few ones a few years ago), and no one apart from some non-profits initiative is willing to even open a piece of electronics to do some simple repairs that involve soldering (the only repair being done is changing a part on phones/tablets/computers).
It's really depressing, because a lot repairs are really simple (unsolder a capacitor that is visibly broken, solder a new one in, or even replace a fuse in audio equipment) and instead those objects are trashed, contributing to the growing ecological problems.
That state of affair comes from both an economic lens (manpower is too costly compared to buying a new one), and a skill shortage (people watch me like an alien when I do those simple repairs)
I gave them a call and 15 min of biking later I had what I needed for a few euros.
The shop is an inscriptible mess but the guys running it are ok.
Everyone in the know insists on being there for the repairs to make sure no shenanigans occur. So the reputable places do it in front of you and explain what they are doing so you don’t feel cheated later if something else breaks.
I couldn't get a ribbon cable last month from what used to be the best electronics shop in town!
You can still get some parts at The Source these days, but not all of them, and not nearly as expansive a selection.
From thousands of operating stores to 500. Had a few in our area all close, so instead of 2-3 miles, now requires 20 miles to get to one. Effectively to some towns/cities it feels like Radioshack is no more because of such a drastic hit to their footprint.
I just remember the RadioShack near my hometown that was full of walls of components. Now you're lucky to find a blank F-connector at The Source in the largest city in the country. Sentimentality got to me.
That said—for other Torontonians, or visitors, there's an awesome (edit: AWESOME) shop on College St between Spadina and Bathurst called Creatron: https://www.creatroninc.com/ (and surprisingly don't discount Long and McQuade [repair shop, Bloor St] for good quality pots and switches, albeit at a markup).
Doing BGA rework with the right tools is pretty trivial. You can teach the average high school kid to do this stuff but it's not worth it when they could just go to college and learn circuit design or programming to create a design for a less educated technician to build. If they'd rather learn the rework, there are plenty of places that will hire them for more than what someone would pay to have their phone potentially destroyed.
That and regulatory capture (think plumbers/ac repair/etc) mean that while the part may cost $25 retail, and it only takes 5 minutes to replace they can get away with charging $400 for it (happened to me recently) because they know its going to cost you more to replace it. Appliance repair is going the same way, as is automobile repair at a lot of dealers/name brand chains. The smaller guys will replace an alternator for $40+parts, but your going to be looking at 250+marked up parts at a lot of places. I had the dealer quote me $800 for a door lock, that I ended up fixing mysel for $2 in ebay parts and an hour in labor last year.
There are very few places remaining where there is enough density of need in immediate parts, live debugging, or cottage industry-style production to sustain markets like the one in Shenzhen. Worse, decline in one part of the market (dev tools for examples) would result in a decline in visitors and business adjacencies that speed the decline of the other parts.
Aside from Shenzhen, I'm only aware of Akibahara (smaller and more consumer focused) and some of the markets in Seoul (one of which is smaller and consumer focused, and the other which is more machining/tooling cottage industry focused).
How does this work? I’d have thought those flash chips would be something customised specifically for Apple and contain some kind of authentication system or preprogrammed ROM with immutable firmware - or at least have the IMEI number burned into it somewhere - surely there’s some mechanism for an iPhone to detect unofficial (or unofficially installed) storage chips and prevent booting?
Are they sourcing actual Apple chips that get leaked or diverted out of Apple’s presumably locked-down supply-chain?
There comes a point where a part is so basic and integral to the device that putting these kind of protections is outright impossible - without them the phone might not exist as a computing device.
Freed markets for the win.