Next, let’s measure the voltage outputted from PMIC, measure PP_0V8, PP_0V85, PP_1V8, PP_2V95, PP_1V25, PP_1V15 and PP_0V8ĭisconnect the power supply, remove the shield plate. The fault is usually related to CPU and main power supply voltage. Trigger with tweezers to power on the phone, current reading on the ammeter is 50mA(For 50mA boot current of the phone).
Then take out the SIM card tray and logic board.įirst, we need to confirm whether the boot current is normal, for better measurement, apply tins to the battery connector and solder a length of red supply wire. Press the Galaxy S7 Edge power button, the phone won’t turn on. Now, follow the instructions given below: We can fix the issue by replacing with a new PMIC(You can read our another about PMIC Replace Case- iPhone 6 Won’t Turn On Repair – PMIC Grinding and Replacing). The fault component is finally confirmed as PMIC U7003, our focus today would be to fix this issue. If there is abnormal voltage measured, then check corresponding faulty position on the board. If nothing goes wrong, the fault is most likely to be related to CPU. As for won't power on accompanied with 50mA-80mA boot current, the first thing we do is to check power supply voltage. However, there can be various other reasons due to that Samsung Galaxy S7 edge won't turn on.
#Risk analysis of samsung s7 battery how to#
Such basic methods we have mentioned in How to Fix Samsung Galaxy S8 Plus Not Charging and How to fix Samsung Galaxy S8 speaker sound not working.
You can find and try some basic ways from Google, such as check the power button whether it damage, perform factory reset and etc. There are many like you facing a similar fault. However, you are not the only one whose Galaxy S7 edge won't power on. It is not easy to deal with an unresponsive phone, especially when it does not even turn on no matter how many times you try. “Oh, my Samsung Galaxy S7 Edge won't turn on!” Yes, we know and understand how annoying it can be when your phone remains frozen at the black screen almost like a dead wood.
0 kommentar(er)
