Z3 black screen randomly when on mobile data - Xperia Z3 Q&A, Help & Troubleshooting

So I just rooted my Z3 and am super happy with it. I've been going through and removing all the bloatware but I"m nervous I may have removed some dependency.
Currently my problem is that whenever I'm no mobile data (this problem doesn't happen if airplane mode is on, I'm on wifi, or the simcard is out) the screen randomly goes black. It doesn't turn off, everything just turns black. I know this cause I can hold the power button and the power menu pops up. The menu does jitter a bit though as if someone is trying to move it with their finger.
This will happen periodically a bunch of times, and then go away for maybe an hour or more.
Anyone have any leads on what this might be?

Related

Powe/Sleep Button Issues?

I was just wondering if anyone else has been experiencing problems where there power/sleep button doesnt bring the phone out of sleep mode and the phone just remains black. Let me know.
schilj14 said:
I was just wondering if anyone else has been experiencing problems where there power/sleep button doesnt bring the phone out of sleep mode and the phone just remains black. Let me know.
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They only annoying issue i have is when coming out of sleep and upon pressing the power button i get a 7 sec delay before the phone lights up.
schilj14 said:
I was just wondering if anyone else has been experiencing problems where there power/sleep button doesnt bring the phone out of sleep mode and the phone just remains black. Let me know.
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Click to collapse
I just started experiencing that my phone wont go into sleep mode after pressing the power button. I can hold it down and pop up menu to turn off shows, and bring it out of sleep after the 15 sec delay i have set up but thats it any ideas?
The only issue I have is when the phone goes to sleep wifi turns off and the captivate starts charging data to my plan. Does this happen to anyone else and if so is there a known cure?
I had my phone not go to sleep at set timeout one time. It may have been due to an app i installed. I rebooted and no problem since.
As for using data when asleep - Wifi turns off when the phone goes to sleep mode - this is the way it behaves, same as iPhone and other android phones. You have some app connecting in the background, maybe email sync?
You can keep the wifi on during sleep by going into the Settings-> Wireless and Network -> Wi-Fi Settings. Press the menu button in Wi-Fi settings press on "Advanced".
In there is an option called Wi-Fi sleep policy. Switch that to Never and you shouldn't have to worry about the wifi turning off when in sleep mode.
alphadog00 said:
I had my phone not go to sleep at set timeout one time. It may have been due to an app i installed. I rebooted and no problem since.
As for using data when asleep - Wifi turns off when the phone goes to sleep mode - this is the way it behaves, same as iPhone and other android phones. You have some app connecting in the background, maybe email sync?
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Click to collapse
Yea It was an app I installed, I did a reinstall from a back up and it works now.
Captivate Shutting Down Instead of Sleeping
Mine is doing this too, as are a few others, from the look of some posts on here. Mine started after a day and a half and two full charges. Suddenly I would go to wake it up and it will have turned off.
I'm thinking I might take it back to the store to exchange it, as not everyone is experiencing this problem. Sucky. I did notice that the battery, after you take the door off, is a little wiggly on the side opposite the connectors. I wedged some thin paper in the between the battery and the battery slot and it still did it. Got to be a problem with the individual phone.
Total PITA!!
I had problems with mine shutting off while in sleep mode and I uninstalled SetCpu and my task killer and it stopped doing it....

broken fuze. powers on as soon as battery is popped in

So I've had my fuze a little over a year now, no major issues. Used mostly energyroms, but about December time I switched back to a simple non-bloated stock rom for the stability.
Anyway today at work I was texting, and I press the power button to put the phone in standby. And the screen remains on and usable. I tried again and it would not go into standby (power button physically feels normal, it does not feel loose or abnormal.) So i let it sit for a few minutes, then i look at it and a message poped up asking if i wanted to turn the phone off (like as if i was holding the power button)so i press no, then it comes up again a few seconds later and aagain and again. So I soft reset the phone.
The phone resets but takes a LOT longer at the att/htc splashscreen, then it hangs at the htc screen and does not make it to the wimo screen, but instead an error screen saying:
"The device is unable to boot because you have either turned off the device incorrectly or tried to install an applicationa from an untrusted source, press SEND to reset your device or press any other button to cancel..."
I think it went through the hard reset this time because when it restarted it asked to calibrate the screen and install stuff. it resets again sometime after that, still takes forever at the splash screen and comes back up to the error, only this time no matter what button i press it wont go away and boot into wimo. It seems like none of my buttons work (they wont light up now) when i slide out the keyboard, it is not lit up like normally.
And heres the kicker, my only way to turn on/off the phone is to take out/put in the battery. As soon as I pop the battery back in the fuze turns on. Is my phone toast? Ive tried to hard reset and the phone does not reach the bootloader, it goes straight to the splash screen. Same with trying to reflash it from my comp, raphealwrapper cannot find my phone.
I've only recently encountered the exact same problem on my Touch Pro, but stock ROM and everything. As far as I can tell, our power buttons are busted and probably need to be serviced. One of the contacts must be stuck in the 'on' position somewhere inside :\ As a temporary fix, I've been using AEButton Plus and remapped double tap end call key to turn the screen off, and removing the stylus to turn it on.

[Q] Can't see anything on display

WARNING: not a native english speaker.
when I try to start the phone the following occur:
the display light turns on, shortly after that the phone emits that startup vibration, the backlight remains on for aprox. 85 seconds then the phone aparently shuts down. that meant, the backlight of the display turns off.
problem history:
I was at work and as usual i was listenin to music via handsfree. while my phone was in poket it seemed that somehow my poket pressed the sleep button and turned the screen up. no prob here. i got the phone out of ma poket. reverted the volume @ maximum and then locked the phone and turned the screen off and putted back in pocket. after some time i wanted to change the song. got out the phone, turned on the screen but nothink apeared except a horizontal line in the middle of the screen. I tried to shut down/up the screen but nothink apeared. after a couple of tries the screen turn on but it was unusual what i saw on it. I saw a sketch of the energy rom home screen with diferent colors.
Meantime i was tryng to get the screen outta sleep the music still played in the phones.
I thaugt that a reset will do but it didn't. got out the battery and got home. reasembled it, powerd up the phone and voila! the phone started up normaly. got out the battery, introduced the sim card. powerer up the phone but bad luck. the happiness was short lived. the problem camed back. another thing i noticed is that when i powwer on the phone i let it on but it wont output that energy rom bootup sound.
Can someone elude me with whats the problem with my phone?
hope I was clear enough!
Have a great day/night!
UPDATE: LEFT IT OVERNIGHT WITHOUT THE BATTERY AND NOW ASSEMBLED BACK. IT'S WORKING BUT I THINK IF I GIVE A RESTART THE problem will come back.

[Q] Nexus 5 shuts down/unresponsive due to processsor intensive activities?

Hello
I have a 32gb nexus 5. I had cataclysm rom 5.1 installed.
Sometime a couple of weeks ago, my nexus 5 would randomly start shutting off. As in the screen would turn off, and would not turn on using the power button. Even if i put it on charge, it would not turn on. I had to press and hold the power+volume up button to restart the phone. Used to usually work.
Then slowly and slowly, it became difficult to restart the phone using the "volume up+power" button. I probably had to do the combination 5-10 times and it would then turn on from the google screen. My recent apps still running in the background. Sometimes it used to optimize all the apps again.
I discovered it USUALLY restarting when I do something processor heavy (i.e. put more load on the processsor like gaming/connecting to HSDPA and browsing etc). I transferred my sim card to a different phone, undervolted and underclocked the processor and used it on airplane mode on wifi, and it rarely restarted(once or twice over a week). I can also almost always reproduce the "hang and shut down" by putting a sim card and and browsing specially on mobile data
I plan on giving away this phone but I dont know what the issue is. There is no reliable service center near me.
Any idea what the problem could be? From what I gathered, it could be a battery issue?
I have tried flashing factory images and reverting back to lollipop, both of which do not work unfortunately
Thanks in advance!

Nexus 5 Random Shutdown Frequent Problem

I don't understand how exactly can I explain the situation, but I'll be as specific as I can. Please try to understand and help me from this.
My Nexus 5 is on Marshmallow without any roots etc ever. Now, the problem goes like this:
Suppose I press power button once, then screen should turn on/off once. Now this which happens normally in any phone happens in mine for first few times, then it starts like if I press power button once to turn screen off, it goes from off and turns back on, I again press power button, again from on it goes off and back on, this keeps on happening until I try my luck for it to off, but then sometimes it happens like after so much pressing it eventually show me "power off" option on screen(which generally should open if I hold the power button). Now once I encounter this "power off", no matter what I do, I power off/not, it'll automatically turn off, and this happened atleast 10+ times till date. So finally whenever I encounter "power off" option, which sometimes comes when I try to turn screen on or sometimes off, but never I hold the power button, but finally even If I don't click on power off, it'll power off.
And that isn't yet strange till there, normally now "Google" shows on screen when device is powered on, but here after encountering "power off" it shows "Google" and turns off.
This problem has happened to me from maybe starting a week ago, atfirst I ruled it as maybe hardware problem, cause after 3 factory resets, nothing changed, but then when I did wipe system cache and data format from recovery screen, everything got resolved. But this too remained for 2-3 days, again same problem started after it, I this time cleared system cache from recovery, and this time too it helped somewhat. so I can atleast say that it isn't a hardware power button problem, but something which I don't know what, always creating problems from software.
Now this problem has developed itself, because now the power button is kinda working okay, but now the "power off" comes on screen automatically, I can say once-twice a day, and as explained 'n' times before, once I encounter this, mobile turns off.
So everytime I've to turn phone on after this, and pray that it doesn't repeat, but it's yet going on, and i'm so pissed off by this phone, I regret buying this, honestly as till now mentioned I tried whatever I could/I knew, but nothing, nothing's helping me.
Also the problem intensifies when phone is on charge & "power off" is encountered, then the phone goes to turning off and "Google" is shown, then it shows "Google" then turns off, then it shows "Google" then turns off, and this loop keeps on going.
Finally I hope i'm as clear as possible, if someone can please help, I can guarantee any kind of format will just resolve the problem for few days only, and hardware power button problem i'm not feeling it as formats basically help it great, but anyway if I'm going wrong somewhere/need proper explanation somewhere then please tell but resolve this asap.
Phone's from India and it's been 1 year since bought and atleast a month from the Marshmallow OTA update and this problem started randomly without me doing anything I guess from a week ago.
I think you should take a look at that power button.
It's your battery. I was having the same problem with my nexus, I replaced the battery and the reboots are gone.
Mine did this exact thing a couple of weeks ago. really annoying and couldn't put my finger on it, until i got so annoyed that when it came up with the power off notification I repeatedly pressed the power button for maybe 20 times, this resolved it for a few days, though to be honest, the best advice that someone posted, was that a sharp shock to the side of the phone that the button is on resolved it, been over a week now and it's been fine.
I put it down to the case i had on it, harbouring small dirt that was getting into the button housing and interfering.
try it out, failing that, perhaps a new power button, i did have one in my ebay basket, though i don't need to go down that route, not for the foreseeable anyway.
**edit
incidentally, i went down the software route too wiping caches etc. no avail.

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