원문 게시자: Minho ,
If you feel confident that your replacement parts are good quality and fully functional, then the next step is to look at the charging circuit on the logic board. That consists of the Tristar & Tigris IC and the supporting components. The issue here is that you have a phone with unknown history. That’s good and bad I guess. It is likely that the previous owner used a low quality charger and damaged the Tristar IC. We can’t share schematics here but they are easily findable, *cough, gsm forum, cough*. Also, Blackfish, of ZXW fame is now free without a dongle so you can access the schematics that way. As for boardview software, there is the new [https://phoneboard.co/|Phoneboard] which is free as well.