LG G3 shows dark screen and no reaction when I press the power button, how should I bring it back to life?
Turn off the phone and remove the battery. Put the battery back in the phone and make sure to put it properly so that the phone can get the power. Then attach the charging cable to your phone charge your phone for about 3-4 hours.
If the above step does not help and the problem still exist then you need to take out the battery, SD card and SIM card from the phone and keep them out for at least 15 minutes. Put them back in and then charge the phone.
Even after doing Step 2, the problem still continues then factory reset is your last resort. But doing Factory reset has a big disadvantage as it will erase all your data and you can’t back up the data because of the dark screen. But at least take out your SD card so that the data in your SD card remains safe.
To do factory reset, press and hold the Home, Volume up and power keys to boot your phone in recovery mode. When your phone enters the recovery mode use volume keys to select factory reset and press power key.
During the operation make sure you phone has enough power.
A - You may lose all the data during the operation.So better back up your data before doing a factory reset.
B - Make sure charger works properly.
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