A few weeks ago I purchased a Galaxy S4 (SPH-L720)[Sprint] & (MF9 Build and Baseband) and ever since, it has randomly been turning itself off. I haven't been able to find a reason, or even a vague pattern...and even worse, it doesn't even make a shutting down noise (mimicking, almost as if you were removing the battery rather than shutting the phone the down) so ill miss calls and text messages all the time simply because i didn't hear my phone turn itself off. The only way I am able get the phone to turn back on also, is by holding down (Vol Down) + (Center) + (Power) for 10 seconds....than let go. Next I hit the power button to turn it back on, or I could go through the complicated process of taking the battery out, put it back it and power it on, but I hate taking the back off this phone, so I just prefer the button option. It's a very stressful situation, especially because every other thing on this phone is flawless for me, so if this simple problem could be fixed I would crown this phone king, especially combined with the unlimited data plan of Sprint, it really allows me to use all that this phone has to offer. Anyone who can give any information or help, would save so much frustration. Anyone have any suggestions or ideas to fix this problem or at least what is causing this problem?
Below are steps I have attempted to fix the problem:
Any other suggestions?
Below is the information for my phone :
Below are steps I have attempted to fix the problem:
- Factory Reset (Didn't fix, just slowed down frequency about 30%)
- Limit Background Processes in Developer options (Didn't work at all)
- Delete Apps (Just like factory reset, didn't fix, just slowed about 30%)
- Updating Firmware (Didn't work)
Any other suggestions?
Below is the information for my phone :