Sony Xperia ZL C6502 4.4.2 KitKat Restarting Issue - Sony Xperia ZL

My phone keeps restarting itself whenever I have mobile data on and phone is on idle. Its fine when I use wifi and when I turned mobile data off it does not restart. When I use mobile data and the screen is still on it does not restart either. But whenever it is on and the phone is idle it automatically restarts itself. The phones temperature also gets a little hot. Does anyone know what the problem is? I never had this issue when it was jellybean. I also checked the battery status it says everything is good. If anyone knows what the problem is please let me know how to fix it. Thank you.

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[Q] Wifi and cell Reception stop working after screen is shut off?

When I turn off the screen of my phone, I lose my wifi and data connections. The icons of them in the status bar turn white rather than the usual green. The only way I have found to fix this is to put the phone in airplane mode then take it out. Which is really inconvenient EVERY time I want to use this. I know that when the WiFi turns green it means that the phone is connected to Google. But it never goes back from white to green even after I let it sit for a few seconds and try something to push data through. Even when it's green it doesn't work until I reset the radio.
Things to know:
1. I am rooted.
2. It is the AT&T LG Nitro HD (LG P930)
3. It is the V10f software version.
4. I have not tried a factory reset yet because of the hassle. Yes I know about titanium, it's just time consuming.
If anybody else has this problem, please let me know. Hopefully we can get this fixed.
Update: I fixed my problem by installing Wi-Fi fixer. But it still makes me mad that this occurs. Maybe we can try to find the source of the problem.
Sent from my LG-P930 using XDA
Maybe you are running some battery saving app like juice defender? Check the settings there.
limpbisquit said:
Maybe you are running some battery saving app like juice defender? Check the settings there.
Click to expand...
Click to collapse
Nope, I'm not running juice defender. The only task killing app I use is Advanced Task Killer which I only ever use when I need to quickly restart an app, I don't use it every 10 minutes like some people do.
I had a weird incident where I lost my wifi radio...wouldn't detect any wifi ssids...don't know what caused it. But your situation seems similar...sadly I have know idea how it got fixed...rebooted phone a couple of times and haven't had a problem since.

Help! Random shut down and battery issues

I'm experiencing sudden shut downs when I take a picture with my phones camera, especially if the flash is used. It just turns off without warning.
The battery has also started to suddenly drop a lot in percentage sometimes , and yesterday phone just turned off at around 20%, because battery was apparently empty....
Could this be a faulty battery or software problem? I'm using stock Rom and stock kernel. And have never had any problems before
Sent from my LG-E975 using XDA Free mobile app
Factory reset if it doesn't work, warranty service..
HI
robotzki said:
I'm experiencing sudden shut downs when I take a picture with my phones camera, especially if the flash is used. It just turns off without warning.
The battery has also started to suddenly drop a lot in percentage sometimes , and yesterday phone just turned off at around 20%, because battery was apparently empty....
Could this be a faulty battery or software problem? I'm using stock Rom and stock kernel. And have never had any problems before
Sent from my LG-E975 using XDA Free mobile app
Click to expand...
Click to collapse
we have the same problem,but my LG Optimus G E975,. was fixed already. email me trU gmail. so i can teach you what i did to my phone,. [email protected] or FB
https: / / w w w .facebook.com/profile.php?id=100011136766606
hope i can help you
had some problems like that, bought a new battery and the problems are gone, but sometimes the phone keeps shut down went I take a photo with flash, please @saikyamer25 can you explain what you did. thanks
leouzcategui said:
had some problems like that, bought a new battery and the problems are gone, but sometimes the phone keeps shut down went I take a photo with flash, please @saikyamer25 can you explain what you did. thanks
Click to expand...
Click to collapse
add me in fb then i will tell you what i did to my own,. search [email protected] in FB. my profile pic is i dont have cloths side viewing,.
Same problem here, phone shuts down at 20-30% when LTE is on; after restart it shows 0%.
I'm pretty sure it's a problem with the battery
I had that problem too, but after update my custom rom that problem don't occure anymore. I haven't check it with almost empty battery, maybe I'll try it soon..
Sent from my Andromax I46D1G using Tapatalk
Am I the only one who thinks that is pretty strange this issue being reported a lot of times lately ? I didnt have issues with my battery before, but now I have the exact same problem with the flashlight. But when I use an app of flashlight the phone doesnt turn off...
Shutdown
Hey
I'm having the same problem but my phone shuts down at 40% and won't start again. I have got a new battery and done a factory reset, but nether has worked. The phone is 3 years old, so change the system won't be a problem with the warranty.

Battery/overheating/Wi-Fi problem

Hi everyone
I'm user of Xperia T3 since the beginning of this year, and I was very satified of my choice. But now appeared couple problems with my phone and I don't know how to solve it...
First problem is battery drain, it's too fast, I don't know how, but hour after unplug phone from the charger, battery stat was only 76%. Second problem is a overheating, it's a normal problem of phone, but it's annoying recently, especially when I use T3 in normal way, only using FB, Snapchat, etc. Also phone overheats when I use camera.
And the last problem is Wi-Fi, phone losing signal and when I want to rescan, Wi-Fi stopped working and only plane mode can turn off it. Also when I want turn it off normally, I think Wi-Fi still working in background so it can be reason of drain battery.
Thanks for help!
That never happened to me. You can try to do a factory reset, or use de Sony flashtool called Emma to install the kitkat again...

Help problem with wifi direct is keeps on and kill battery in3 hours

I have a really serious problem with my Z5 premium dual. When i just turn on wifi and connect it normally, my other device will find a stupid "DIRECT-XX-XPERIA Z5 PREMIUM DUAL" wifi on the list, like it always turn on everytime when i just turn on my wifi in spite of i never use it once!! Trying to fimd how to turn it off and never success dont wanna do factory reset my device. The problem is it seems running in background and device heat like **** and battery drain like hell. Anyone knows how to just turn off the once and for all
Same with me... DIRECT-**-Xperia Z3 Tablet Compact ...even with WiFi off.
I only manage to keep that annoyance at bay if I turn off WiFi then activate Stamina Mode.
This started happening lately about a week or two ago.

Auto sync keeps turning on

Hi everyone,
I'm using a OnePlus 3 and my phone auto sync keeps turning on itself. I have this problem a few months ago when I'm still using havoc os, then after that I flashed xtended. Starting was fine, it didn't turn on itself, but after a week or more of use, it started to turn on by itself again. It's quite annoying, bcs I don't wanna drain my battery too much so I usually just switched it off and turn it back on when I need it.
Usually it will turn on by itself when my phone is charging but sometimes it will also turn on when my phone is discharging.
Does anyone know what is the problem? Or its just my settings are wrong?
Pls let me know if you know anything about this, thanks
Same problem

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