It's been a while since I did a phone repair but it's time to replace my iPhone SE 2020 (2nd gen) battery. There are so many new strange developments and conflicting info out there that I just need someone to summarise it for me. I want to use a non-OEM battery and conserve valid battery health data.
* There is a chip (BMS) on the battery which usually keeps track of cycles but in newer iPhones also holds some kind of serialization data right?
* This board needs to be soldered on to the new battery. However some are saying ***you need to utilise spot welding here and soldering wouldn't work, is this correct?***
* What's up with the programmers? Do they read the BMS and copy it on a new battery BMS? ***If so, would that mean that I could use a programmer to avoid soldering / welding the BMS***
* And apparently after programming the BMS on the new phone you still need to do factory reset to get back to 100% battery status report. Why is this? ***Is it because iOS assumes it's the same battery and thus can't have 100% health?***
* Also, what is this tag on flex stuff? Is it a replacement solution for transfering the BMS?
It's been a while since I did a phone repair but it's time to replace my iPhone SE 2020 (2nd gen) battery. There are so many new strange developments and conflicting info out there that I just need someone to summarise it for me. I want to use a non-OEM battery and conserve valid battery health data.
* There is a chip (BMS) on the battery which usually keeps track of cycles but in newer iPhones also holds some kind of serialization data right?
* This board needs to be soldered on to the new battery. However some are saying ***you need to utilise spot welding here and soldering wouldn't work, is this correct?***
* What's up with the programmers? Do they read the BMS and copy it on a new battery BMS? ***If so, would that mean that I could use a programmer to avoid soldering / welding the BMS***
* And apparently after programming the BMS on the new phone you still need to do factory reset to get back to 100% battery status report. Why is this? ***Is it because iOS assumes it's the same battery and thus can't have 100% health?***
* Also, what is this tag on flex stuff? Is it a replacement solution for transfering the BMS?