Chosen Solution
Hi everyone. I have 6s water damage. I clean the board with isopropilic alcool. After cleaning the phone turn on but not Recognize USB Cable. I changed Tristar but no solve the problem, then i Reball (not change) Tigris and phone begin recognize usb and charge. After two days the phone not work. When i connect it to DC power supply, it shows 0.04 without turn the phone. When i turn on the phone, it shows randomly high and low current, like 1,9 1,8 0,9…. Somebody think it depends on Tigris IC ( because it reballed IC and not new) Or i have to search the problem on some other component. VERY SORRY :( for my english :)) Thanks a lot
With a water damaged phone, all bets are off :>). You should try a new Tigris just to eliminate that as a possibility but I would also take a close look L2300/C2300. Any issues there would cripple the output of Tigris. You’ll also want to look at the TIGRIS_ACTIVE_DIODE LINE (and the MOSFET) to see if it is working properly. It should switch from high to low when a charger is connected.
Thanks a lot guys.. I m learning so much from your answers and thanks for patience.. Could u plz confirm me if the procedure in image is right? I want a confirmation only for method .. Thanks
