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Help Phone "crashing" at night

A

alphame

Lurker
My s3 has been "crashing" at night when not in use. It goes into a sleep-ish state where I cannot receive phone calls and my alarm doesn't go off. The phone becomes completely unresponsive. This seems to only happen at night when I'm not using the phone but after a few minutes of fiddling with it, my phone will eventually come on and be normal after the launcher crashes. This is happening every night but there's nothing at all going wrong throughout the day.

A quick list of thing's I've tried that haven't seem to have worked:

  • Removing the battery and sim card
  • Restarting the phone
  • Switching from TouchWiz to the Nova launcher
I'm running 4.1 and my device is not rooted and has no custom fonts.
Any ideas? I've been missing my alarm every morning for a week now Hoping I included enough and put the thread in the right place
 
The phone is At&t but I'm running it with Straight Talk.

Model: SGH-1747
I'm actually not sure if that's the international or what, I bought it from someone that thought it was a Windows phone and was very disappointed. :lol
 
Lol :)
Nah thats not the international so that takes SDS (Sudden Death Syndrome) :eek: problems out of the equasion :)
Hopefuly someone has something constructive to say :thumbup:
P.s. seems strange that this happens at a time of day.. have u thought about what might be different during these hours?
 
Hopefully ;)
I'm thinking maybe my phone is doing something in sleep mode that it just can't handle and it's giving me that black screen crash with no response for a couple minutes. Hmm

edit: I had my sync turned on this week, around when it started. I turned it off to see if it changes anything, maybe it tries to sync everything at once?
 
Its almost as if the phone isnt waking up properly, instead of the CPU speed rising instantly when you turn the screen on and touch it (or when its trying to perform a task), its staying at a really low frequency. Thats the Kernel. You can reproduce whats happening with a modded phone but it shouldnt happen on a phone that hasnt been messed with..
 
You state you are on 4.1.1, but this will still apply.
This is not what you want to hear, but it is recommended with any major/minor OS update to do a factory reset to clear old files that are still left from the old OS. Like a clean install on a PC as opposed to a upgrade. I was having problems with mine till the Factory Reset. Back up all your documents and media files. You will have to re-install any Apps you have downloaded.
 
I would show your device what fate it is destined for if it doesn't comply with your desires:
images
Nah, just kidding!
You have some good advice going on here!
 
I've got most everything backed up on my computer, cleared the cache and I'm doing a factory reset now.
I'll check to see when I wake up if my phone works smoothly the first time or not, hopefully no more black screens. Thanks so much for the advice. :)
 
alphame said:
I've got most everything backed up on my computer, cleared the cache and I'm doing a factory reset now.
I'll check to see when I wake up if my phone works smoothly the first time or not, hopefully no more black screens. Thanks so much for the advice. :)
Click to expand...

Let us know how it goes!

My suggestion of wiping cache was meant to be tried as a fix before doing the factory reset, but doing the factory reset will wipe your caches as well (and its probably the better solution). Cache wipes are just less "extreme"

Sorry for not being clearer before. :o I see now how ambiguous that suggestion was.
 
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