* Battery swelling after less than two years of operation (no way to source this battery locally since they've built a custom connector / redesigned an standard OEM battery)
* Overheating
* Touch screen glitches (they've resolved that after a year via software, support was super unhelpful with that problem)
* Wi-Fi 5 GHz broken/unreliable for many people
* Camera focus (not sure if FP3+ improved on that front)
* Broken fingerprint sensor (from the beginning, most common issue) and by broken I mean not functional at all
* self-disintegrating plastic parts (back and side covers), likely due to the fact they are using recycled plastic - they've changed the plastic chemistry with FP3+, for me the plastic became more and more brittle
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In addition for me with software:
* charging LED can't be disabled, which is extremely bright when you're sleeping - community members shrugging this off with "you shouldn't use your phone in your bedroom anyway"
* screen brightness too bright / unreliable brightness sensor readings (they had several updates because it was so hard to tweak for them)
On the positive end:
Phone is quite durable, fell down on many occasions and because of it's plastic/design openness the battery falls out but screen never broke in bunch of occasions.
Edit: Formatting