Xperia J Frozen/Hang after reboot - Android Q&A, Help & Troubleshooting

So my phone just working fine and a couple of nights ago, my phone running out of battery and died when I was asleep. And then, I connect it to the charger. After the phone is started, I noticed something difference. The phone became so lag and I couldn't open media and music. And after about 15-30 minutes, the phone became frozen and it didn't responds to any touch. What I can do is only restart it, and the same thing happen after 15-30 minutes. Some apps work and some not. I don't know what happened to my phone. Before it died, my phone is working just fine. Now, I had to restart the phone for about 20-30 times a day. I really need someone's help for this.

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Connect via USB, wait 2 minutes, freezes w/black screen and vibrates forever

HELP!
I've had my Touch Pro from sprint almost 2 months. Been loving it. Installed many a mod and hack from this site with no problems.
Since last friday, when i plug my phone into my laptop to charge it, 2 minutes pass, the screen goes black. When i pick up the phone its vibrating and won't stop. No buttons will get the screen to come back up. I have to take the panel off the back and dislodge the battery and re-install. Once rebooted its fine. If I plug it in again it will do it again. Repeatable. I uninstalled a few of the latest applications i had installed to it. I tested it on another windows vista machine and it worked flawlessly and by flawlessly i mean sat there plugged in for 20 minutes and never froze this way. I wish I could format, but its my work laptop. Also in the 2 minutes its connected it syncs fine and stops and then a few seconds elapse before it freezes. It doesn't seem time related other than its exactly 2 minutes after it finds connection to the pc. The real killer is I have it set for the screen to remain visible when its plugged into usb. Still decides to kill the screen and lock it anyway.
I can provide a lot more information if necessary, just hoping someone has seen or heard of this before and has a fix or steps for a fix.
Anyone have any ideas?

Bricked or Cold?

I have my GS3-I-9300 for roughly 3 months now. I rooted the phone roughly a month ago. Everything works fine and even yesterday it was still working fine. I left my music on, charging, and this morning when I woke up, the led is blinking, screen don't turn on. So I figure i'll just unplug the battery and see if it'll reset it, and after so many try, the phone won't turn on. My house got really cold last night and my phone was charging next to a window, I don't know if temperature has anything to do with it. Though would anyone be able to help me with this problem?
Read the sudden death thread .
jje

[Q] Galaxy Alpha constantly turns off

Bought my Galaxy Alpha about three weeks ago.
Two days ago the screen suddenly went black, and there was no response from it. I then removed the battery and successfully turned it on again.
Then, after about a minute or two, it went black again. Same procedure - but then again it dies after a couple of minutes. Quite annoying!
I then noticed that the phone works perfectly when plugged (via USB) to my computer, or to the charger.
But as soon as I disconnect it from the cable, it lasts only a couple of minutes before it goes black again.
I thought it might be a batteryproblem, but the phone is always charged to 100%, so there should be plenty of power left.
I've tried to do a restart (restoring default settings and data, deleting all apps and files on the internal card), but the problem is still there..
Any suggestions?
Try to flash new FW with odin,if this happend again return your phone to provider

Tablet restarts randomly even when idle.

I've had the tablet z for about 2 years. Bought it new from EE, never really had any issues with it but recently it's started rebooting randomly. It could happen after 5 minutes or 30 minutes it's not really clear. Never rooted or installed any roms on it. Sometimes when it reboots it can take a while for it to get back to the lock screen. Unusually long.
So far I have tried
Fully drained and recharged the battery.
disabled the camera
disabled wifi/LTE
reinstalled all the software using sony suite, as well as updates
The tablet works as expected it seems when it is on. It will restart regardless of what is being done with it, in the middle of browsing the web or idle with the lock screen on.
I am at a bit of a loss of how to diagnose the issue or if it's even fixable. I was wondering whether I could get the logs somehow. My other thought is it could be some software that's causing it as when I wiped it google immediately reinstalled the apps.
Make clean reflash with Flashtool or restore with pc-companion.

Nokia 7.2 android 10 shuts down spontaneously

Hey guys
I hope someone will be able to help me.
Got my Nokia 7.2 for about 5 months now and i noticed that sometimes, completely unpredicted, phone shuts down!
* Never happened while im using it(that means while its in my hands).
* Never happened while charging.
Sometimes when idle, phone just shuts down!
Like many of you guys i missed the morning alarm because of this issue couple of times, and there were occasions people could not reach me for hours! up until i took my phone in the hands and realized it was shut down the whole time.
my phone is up-to-date.
no issues with battery (at least that what my phone says).
how can i solve this issue?

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