Battery life is weak
Phone will die within a few hours of use.
If the battery fails to hold a charge, remove the rear plastic panel of the device. Once taken off, the battery is visible, the battery needs to be removed so the replacement battery can be placed in its position.
If whole device feels warm, the battery is overheating. Having many apps open or bright display setting can be the cause. Temporarily cease use and turn off device and battery should return back to normal temperature in a few minutes.
If your phone has an, up to date operating systems, it may require more power from the battery. Take device into phone provider for maintenance or delete apps from phone may drain the battery.
Camera flash doesn't work
Camera flash doesn’t go off when I take a picture.
If the phone camera flash stops working, do a soft reset of the phone. A soft reset is turning the phone off and then turning it back on.
Poor hardware connection
If the phone camera flash stops working even after soft reset was done, turn phone off and take battery out for a one minute, then put battery back in and turn phone on.
Too much data
If the phone camera flash stops working, even after soft reset was done, and taking the battery out. Locate and go to settings> Apps> All Apps> Camera then press “Clear Data” or cache.
(used for all:https://www.youtube.com/watch?v=mRsNSY_9...
Front and back cameras will not to take a clear picture
Both cameras show blurred vision, do not adjust/focus on image, or display a black screen.
If len is cracked, remove the shattered lens and replace with a new glass. https://youtu.be/-Vs7-spluvA
Dirt or grime on lens
If dirt or grime is on the lens, use a lint free microfiber cloth or a cotton swab and distilled water to gently wipe camera lens until the dirt is removed. https://www.howtogeek.com/66827/how-to-c...
If phone cannot connect to camera, do a soft reboot on the phone by turning it off for a few minutes then turning it back on. If this does not work, access the Play Store application and download Camera (CMfix) for Cyanogenmod. Then go to the description of the app and load the link included in the app. This Application will allow the camera application to restart. https://youtu.be/znVRvfMV_RU
Screen is damaged or shows random color arrangements
The screen does not show the full image, in its place there are gray squares.
If screen is cracked or shattered, use a prying tool, heat gun and a small phillips head screwdriver, you can access the screen for further repair. Use the heat gun to loosen the seal keeping the motherboard and screen together. Gently remove the screen from the motherboard with the prying tool. Disconnect the screen from the motherboard and repeat process to install new screen.
Discoloration of Screen
If screen appears to be discolored, check the proper settings on your phone to make sure the phone settings are set properly. After following the steps above and the grayed out screen is still there, then follow steps to replace the screen in our “Cracked Screen” repair guide link.
Faulty buttons and/or display
If unresponsive, try holding down the power and volume down buttons simultaneously. When the LG boot up logo appears, release the buttons. If the screen is still unresponsive, try removing the battery using the prying tool, then place battery back into the phone. Repeat the first process. If the LG boot up logo fails to appear, refer back to the “Cracked screen” link to replace the LG X Style screen.
Distorted speaker sound
Distorted sound from built in speaker.
Dust build up on speaker
If the sound is distorted, the speaker will need to cleaned off by either blowing on the speaker or spraying it with canned compressed air.
If your speaker has a distorted sound or no sound at all a soft reset is required to reset the device. To do this the device must be turned off then turned back on.
Poor Hardware connection
If the device does not work properly after a soft reset, a hard reset must be done. To perform a hard reset, turn off the phone and remove battery out for 60 seconds, then place battery back in and turn on device.
(used for all: https://www.technobezz.com/fix-samsung-g...)