Quite surprisingly - the ones who make a living repairing the phones.
> How many are willing to guarantee such a repair will still work a year from now?
Ah, yes, everyone should prefer to throw the device away because the repairman didn't bid his head what the repair would outlive the repairman, device and device owner, amirite?
Charlatans preying on the poor and cheap I suspect.
As an actual qualified EE who used to design high speed digital and RF boards I can tell you that they might not even be working properly straight away, let alone a year from now. You'll just find out in a year what the damage to your data was.
> How many are willing to guarantee such a repair will still work a year from now?
Ah, yes, everyone should prefer to throw the device away because the repairman didn't bid his head what the repair would outlive the repairman, device and device owner, amirite?