1 - I can't hear anything when I make a call?
2 - Seeing a black screen instead of the phone camera viewfinder.
3 - The U12 LIFE camera freezing when switching between the two cameras.
1 - If that doesn't work, you know your Home button definitely has a hardware problem.
2 - It said home but needs service.
1 - Dust or a Crack on the Screen Sensor.
2 - When I have a call and I hold the U12 LIFE in my ear the touchscreen is enabled.
1 - Your U12 LIFE fell on the ground and the power button got stuck or broken.
2 - Your U12 LIFE power button hold do nothing.
3 - Missing power button.
1 - Drop liquid, such as water or other fluids over your U12 LIFE.
2 - Drop the U12 LIFE into a bucket with water.
3 - Accidentally drop the U12 LIFE into the toilet .
1 - My U12 LIFE will not turn on. This is definitely the most obvious and easiest way to determine if your battery has simply had enough.
2 - My U12 LIFE only showing signs of life when connected to a charger or dying fast even after fully charged.
3 - Overheating or battery bulging.
1 - If you are getting no audio at all, and you also try a different set of headphones..
2 -The sound quality gets worse, your jack could be faulty.
3 - Plugging and unplugging produce mechanical issues with ANY headphones.
1 - Whether the glass is cracked or not, examine the display and look for: - Black spots, discolored areas, or blurred sections on the screen
2 - My U12 LIFE screen that stays completely black
3 - Lines or patterns that aren't simple cracks in the glass
1 - My U12 LIFE won’t turn on.
2 - My U12 LIFE a black or blank screen.
3 - My U12 LIFE turns on but immediately turns off.
1 - Visible cracks or chips. This is the most obvious sign of a broken back glass. If you can see any cracks or chips in the glass, it's definitely broken.
2 -A cloudy or hazy appearance. If the back glass has a cloudy or hazy appearance, it's also a sign that it's broken. This is because the glass has been damaged and the light is not able to pass through it as easily.
3 - A loss of touch sensitivity. If the back glass is broken, it can also affect the touch sensitivity of the U12 LIFE. This is because the glass is no longer able to accurately register touch input.
1 - Accidentaly deleted files?
2 - My U12 LIFE wont turn on?
3 - I forgot my U12 LIFE lock password.
1 - The “Right Angle” Dilemma. Do you have to have your U12 LIFE at just the right angle for it to charge?...
2 - Charging Cable Pops Out of Charging Port. It seems like, no matter how hard you try, your charger flat-out refuses to stay plugged in.
3 - My U12 LIFE Charges Slowly.
1 - In my U12 LIFE. No body can ear me during a phone call.
2 - My voice sounds dirty also with powerfull network coverage.
1 - If you put your U12 LIFE on the wireless charger and it doesnt take charge.
1 - If your U12 LIFE is not reading your simcard.
2 - If your simcard reader got damaged when trying to pull it out.
1 -You can't hear your U12 LIFE when it rings.
2 - You cant hear any sound when you play a video.
3 - You can't hear anything while talking on facetime.
1 - A pixelated U12 LIFE screen can indicate LCD damage.This would look like a patch of multicolored dots, a line or lines of discoloration, or a screen with rainbow colors. For many people, these colors are an easy way to know that their LCD is broken.
1 - Do you have to hold the U12 LIFE at a certain angle to charge it?
2 - Do you have to hold the cable at a certain angle to charge it?
3 - There is nothing wrong with the charger and battery and the cell won't charge At All.
1 - My U12 LIFE Speakers get dirty or clogged.
2 - I can't hear anything when I make a call.
3 - My U12 LIFE get noise when call is in transit.