オリジナル投稿者： Darren ,
Update: The phone is now working with vibrate! I just thought I’d post an update for this incase anyone else has a similar problem and comes across this thread. After further checking I can confirm the AP_TO_ARC_RESET_L line should only be 1.8v when the phone is vibrating (will be zero until phone is ringing etc, then will be 1.8v). The solution for my phone was the charging port. Whilst I’d already tried several taptic engines and checked continuity through the charging port, I discovered the vibrate was working when I tried the board in a different housing (with different chargeport). I was about to change the chargeport itself but I was curious about what could be wrong if there’s continuity, I found pin 6 on the chargeport (ARC_DRIVER_OUT_NEG) didn’t have continuity to the taptic engine pad (it had shown as it did before as pin 8 also goes to the same pad). I managed to repair the charging port and now all is working ok. Thanks again for all your help.