[Q] My Xperia U doesn't turn off the screen - Sony Xperia P, U, Sola, Go

Hi all,
I have a Xperia U rooted with DevSwift JellyBean Lite v6 and it works really fine. The only problem is it doesn't switch off the screen, and by this I mean it turns black but there's still light, so it like instead of turning off it just display full black.
Anyone had this problem??
I had 15 seconds to turn off in the display options in settings and nothing happens.

Buc89 said:
Hi all,
I have a Xperia U rooted with DevSwift JellyBean Lite v6 and it works really fine. The only problem is it doesn't switch off the screen, and by this I mean it turns black but there's still light, so it like instead of turning off it just display full black.
Anyone had this problem??
I had 15 seconds to turn off in the display options in settings and nothing happens.
Click to expand...
Click to collapse
Same if you press the power button?
What do you mean by "nothing happens"?

ChikeD said:
Same if you press the power button?
What do you mean by "nothing happens"?
Click to expand...
Click to collapse
I mean that normally when you press the power button(also for lock) it turns off the screen, and by that I mean not even background light.
Mine only turns the screen black and there's some background light left.
In a full dark room it will be enough loom to see something.
By nothing happens I mean that if this state of black screen doesn't change to turn off screen after 15 seconds. It just stays like that.

Buc89 said:
By nothing happens I mean that if this state of black screen doesn't change to turn off screen after 15 seconds. It just stays like that.
Click to expand...
Click to collapse
When the screen is on it go to this state, and same when you press power? Just to clarify.
Did you install the MOD on clean stock followed installation instructions etc?

ChikeD said:
When the screen is on it go to this state, and same when you press power? Just to clarify.
Did you install the MOD on clean stock followed installation instructions etc?
Click to expand...
Click to collapse
When I'm using the phone and left it after 15 seconds it goes to this state of black screen, same as if I push the power button.
Yes, I followed the instructions, CWM, wipe the 3 caches and install. Everything works fine except this thing.

Buc89 said:
When I'm using the phone and left it after 15 seconds it goes to this state of black screen, same as if I push the power button.
Yes, I followed the instructions, CWM, wipe the 3 caches and install. Everything works fine except this thing.
Click to expand...
Click to collapse
There is a second option require flash of XP system before have you tried that?

flash the lightbar fix zip separately and see if it sorts it.
Sent from my AOSP 4.3 Xperia S via Tapatalk

Try with other JB Kernel..
It may help I think

Make Sure U have been rooted !​

I found a solution
Buc89 said:
Hi all,
I have a Xperia U rooted with DevSwift JellyBean Lite v6 and it works really fine. The only problem is it doesn't switch off the screen, and by this I mean it turns black but there's still light, so it like instead of turning off it just display full black.
Anyone had this problem??
I had 15 seconds to turn off in the display options in settings and nothing happens.
Click to expand...
Click to collapse
I had exactly the same problem...
I tried changing kernel (between ExperimentalU-Stock-9.0c4 & Experimental-U-12_KERNEL) and also tried changing rom version (to 7_ULTRA_LITE version) and the problem still stood until I found out that the problem is not from the rom or kernel, you should wipe data/cache partition/dalvik cache ONLY before installing the rom. DO NOT wipe anything after installing the rom. I did it and it worked for me... I hope It work for you too...

Related

Can someone help me?

Well,my U20i (x10 Mini Pro) have using a custom Rom for a long time and it is really great....until one day (this post date) my phone turn off by me because I want to conserve the battery,and then when I want to turn it on,it vibrate (with no light) and I can see the LCD displaying a very ultra low light level of screen (same like phone won't boot screen) so I reflash it again using the Rom I like but not work... :'(
I'm now try to recover my phone using Update Service aka SEUS right?And can someone give me other way to fix this problem?Also my accelerometer seems not working/functioning when this problem occur...yesterday everything was great but this day the problem occured...
Have you try the factory reset? Long ago my E10i can't use the WiFi, when i turn it on there's no hotspot detected and after 5 second it turn off automatically, even if i try to flash the ROM again, the problem still occur... Until i do the factory reset, it's working normally again... Just give it a try ,well if you don't mind to lose your apps...
Satan_Disciple said:
Have you try the factory reset? Long ago my E10i can't use the WiFi, when i turn it on there's no hotspot detected and after 5 second it turn off automatically, even if i try to flash the ROM again, the problem still occur... Until i do the factory reset, it's working normally again... Just give it a try ,well if you don't mind to lose your apps...
Click to expand...
Click to collapse
Well I install a fresh stock rom and it looks like the power button and the system got a little problem and I don't know why
The problem is like this now even the stock rom is flashed :
1.Stock rom flashed
2.Turning on the phone using switch power,the phone vibrate,and no Sony Ericsson word come up
3.The phone then have a notification sound (sounds like setting notification) even the phone screen is power off
4.I take out the battery,and then wait 30 seconds,and insert the battery
5.I plug in charger,the phone on with showing battery icon,I press the power button and the phone on
That's the problem...about the power button and boot up screen :'(
UchihaDareNial said:
Well I install a fresh stock rom and it looks like the power button and the system got a little problem and I don't know why
The problem is like this now even the stock rom is flashed :
1.Stock rom flashed
2.Turning on the phone using switch power,the phone vibrate,and no Sony Ericsson word come up
3.The phone then have a notification sound (sounds like setting notification) even the phone screen is power off
4.I take out the battery,and then wait 30 seconds,and insert the battery
5.I plug in charger,the phone on with showing battery icon,I press the power button and the phone on
That's the problem...about the power button and boot up screen :'(
Click to expand...
Click to collapse
if I understood, your phone boot but the display doesn't turn on.
since seems like this happen since turning the phone on. we can say that for some reason the screen isn't responding. so... you can try to reflash it again and see it that help in something.
the worst could be that the screen got damage in some way.
If i were you,I would reflash stock from via SEUS. And then see what happens. I only hope that it isn't a hardware issue
Sent from my U20i using xda premium
It sounds to me that your battery was just too low... You turned it off to conserve battery and then when you turned it on it gave you a notification sound...
it does that when it wants to turn off because of low battery...
just let it charge, i don't think it's much of a problem.
Well I flashed a stock Rom and the problem still occur...accelerometer doesn't work and phone display isn't on when boot (but the phone is on,yeah it is on just display have no light)
Sent from my SK17a using xda premium

[Q] Standby button malfunction

Hello,
When I press the standby button on my X10, my screen goes black, which is normal. Lately, my screen goes black but immediately after that it returns to the lock screen, and I have to press it twice or more to get it black.
Is this software or hardware related and how can I solve this? Running Wolfbreak's ROM and Doomkernel V6. Running Wolf for about a year now and suddenly this problem starts showing up.
Hi,
its complicated, because might be both. If you used power button very often and/or your X10i is older it might be hardware issue.
I recommend you try different rom first and try it. If it would be the same, then replacement of power button should be the last fix . In that case I might help you with that.
kr1st0f1 said:
Hello,
When I press the standby button on my X10, my screen goes black, which is normal. Lately, my screen goes black but immediately after that it returns to the lock screen, and I have to press it twice or more to get it black.
Is this software or hardware related and how can I solve this? Running Wolfbreak's ROM and Doomkernel V6. Running Wolf for about a year now and suddenly this problem starts showing up.
Click to expand...
Click to collapse
Seems like I fixed the problem by wiping cache and dalvik cache. I'm not sure which one actually solved it. So it was software related.
Thanks for the help anyway!

[Q] Screen Flickering

I have two problems in my Samsung Galaxy S3
1- When I open the lock there is a transition of black lines on the screen. The moment I open the lock few black lines appear on the screen for a second. It blinks and then it is back to normal. But when I switch off the power saving mode it doesn't. This problem just starred to appear as there was no such problem before.
2- My battery drains on idle. I charge my phone and within 3 hours it seems to go down to 87 % without any use. The cell standby is what is eating the battery. It takes about 70% of power in cell stand by. I have read on many forums about the it but i don't want to flash my phone to solve that problem.
Please help me to solve my problems.
One backup data and factory reset .
Two check for updates via KIES .
Three Wifi settings turn off always on .
Fails then as you don't want to flash the next step is a service centre .
jje
skhan33 said:
I have two problems in my Samsung Galaxy S3
1- When I open the lock there is a transition of black lines on the screen. The moment I open the lock few black lines appear on the screen for a second. It blinks and then it is back to normal. But when I switch off the power saving mode it doesn't. This problem just starred to appear as there was no such problem before.
2- My battery drains on idle. I charge my phone and within 3 hours it seems to go down to 87 % without any use. The cell standby is what is eating the battery. It takes about 70% of power in cell stand by. I have read on many forums about the it but i don't want to flash my phone to solve that problem.
Please help me to solve my problems.
Click to expand...
Click to collapse
Are you sure this is not the ripple bug? Is it a dark wallpaper? If so turn off the ripple.
JJEgan said:
One backup data and factory reset .
Two check for updates via KIES .
Three Wifi settings turn off always on .
Fails then as you don't want to flash the next step is a service centre .
jje
Click to expand...
Click to collapse
I tried them all doesnt work
Kangburra said:
Are you sure this is not the ripple bug? Is it a dark wallpaper? If so turn off the ripple.
Click to expand...
Click to collapse
I don't think it is a ripple bug and I have tried all wallpapers it appears in all of them whether it is a dark one or plain white
skhan33 said:
I don't think it is a ripple bug and I have tried all wallpapers it appears in all of them whether it is a dark one or plain white
Click to expand...
Click to collapse
but have you turned the ripple effect off to be sure?
skhan33 said:
I tried them all doesnt work
Click to expand...
Click to collapse
Fails then as you don't want to flash the next step is a service centre
jje
Kangburra said:
but have you turned the ripple effect off to be sure?
Click to expand...
Click to collapse
Yess I did it still appears
skhan33 said:
I have two problems in my Samsung Galaxy S3
1- When I open the lock there is a transition of black lines on the screen. The moment I open the lock few black lines appear on the screen for a second. It blinks and then it is back to normal. But when I switch off the power saving mode it doesn't. This problem just starred to appear as there was no such problem before.
2- My battery drains on idle. I charge my phone and within 3 hours it seems to go down to 87 % without any use. The cell standby is what is eating the battery. It takes about 70% of power in cell stand by. I have read on many forums about the it but i don't want to flash my phone to solve that problem.
Please help me to solve my problems.
Click to expand...
Click to collapse
Just about to write a new thread about this problem. I have the exactly same screen problem you are having. I notice the problem since 2nd week I bought the phone. Try factory reset, flash new firmware (from original firmware which I forgot the version > latest stock LH1 > leaked LI8 > LIB), re-flash LI8 once and of course with a full wipe every time I flash. But the same thing happens again. This is so annoying since I found the problem. Try a lot (ripple off, force GPU on, change wallpaper, screen mode, screen tone and everything about screen) still no solution yet.Have to visit Samsung Centre I guess
I think maybe others have this problem too just they didn't notice it. Try turn on power save mode (it doesn't matter you tick the options inside or not, I have try them all), locked or turn off your screen then turn it on. Stare still on the screen to see if you have the black line.
ctingwei said:
Just about to write a new thread about this problem. I have the exactly same screen problem you are having. I notice the problem since 2nd week I bought the phone. Try factory reset, flash new firmware (from original firmware which I forgot the version > latest stock LH1 > leaked LI8 > LIB), re-flash LI8 once and of course with a full wipe every time I flash. But the same thing happens again. This is so annoying since I found the problem. Try a lot (ripple off, force GPU on, change wallpaper, screen mode, screen tone and everything about screen) still no solution yet.Have to visit Samsung Centre I guess
I think maybe others have this problem too just they didn't notice it. Try turn on power save mode (it doesn't matter you tick the options inside or not, I have try them all), locked or turn off your screen then turn it on. Stare still on the screen to see if you have the black line.
Click to expand...
Click to collapse
I feel the same that I have to walk in to a samsung service centre. I don't understand how such big phones have these errors and I always have bad luck in terms of mobile phone. I always get a faulty piece or something with some problem or other.
I tried power saving mode and there is no blinking as I have mentioned above but why does it blink on power saving mode ??? My friend too have same phone but he doesn't have an such problem.
skhan33 said:
I feel the same that I have to walk in to a samsung service centre. I don't understand how such big phones have these errors and I always have bad luck in terms of mobile phone. I always get a faulty piece or something with some problem or other.
I tried power saving mode and there is no blinking as I have mentioned above but why does it blink on power saving mode ??? My friend too have same phone but he doesn't have an such problem.
Click to expand...
Click to collapse
Guess like we have no other choice but head to Samsung service centre
ctingwei said:
Guess like we have no other choice but head to Samsung service centre
Click to expand...
Click to collapse
Well finally I've found a thread that describes the same bug I'm having.
I confirm this bug. When power saver mode is ON, there's a flickering when you unlock the screen, black lines appear for a second and then disapper, like a screen refresh or something... but this problem is not there when power saver mode is OFF. Weird.. but I just turned it off. Have you guys found another solution?
GasparIPerez said:
Well finally I've found a thread that describes the same bug I'm having.
I confirm this bug. When power saver mode is ON, there's a flickering when you unlock the screen, black lines appear for a second and then disapper, like a screen refresh or something... but this problem is not there when power saver mode is OFF. Weird.. but I just turned it off. Have you guys found another solution?
Click to expand...
Click to collapse
Turning off the power saving mode is the only solution by now. And I also found the same problem happened when I use camera. It's quite hard to notice because it happens just right after you click the camera icon before the screen changes.
Sent from my GT-I9300 using Tapatalk 2
This could be a fix
Hi guys
Do you have whatsapp installed?
I had the phone for 5 days now and it ran perfectly for about 3 days.
I used the screen sticker that came with the phone for a while because i didn't have
a screen protector(still not). Then i started installing stuff and whatsapp was installed
then i noticed crappy black horizontal line flicker the screen. Today I had a friend over
and the phone when mad, it booted but then stopped responding, now here's the part where
the black flicker gets fixed. I restored the phone to its default settings and the black was gone
installed whatsapp and droidwall and the flicker came again, it's uninstalled now and the phone
works fine.
Turning off power saving mode didn't work for me, this did

[Q] X10 Mini Pro bricked while locking bootloader

Hi!
I installed "U20_nAa-14_2.6.29.6-nAa-14" and "MiniCM7-2.2.1-mimmi" on my phone. The mobile network didn't worked, so I tried closing back the bootloader. I made it with "s1tool relock.exe", and it really closed it back. The instructions I followed while doing it, said that I shouldn't start the phone after doing the relocking and disconnecting it from the computer. Accidentally I switched it on, and now it won't turn on. Only the startup vibration and green led flash. If I connect it to the computer it keeps connecting and deconnecting, I don't know how to open up the bootloader again if it's possible at all.
Is it repairable?
Thank you for your help.
Rodage said:
Hi!
I installed "U20_nAa-14_2.6.29.6-nAa-14" and "MiniCM7-2.2.1-mimmi" on my phone. The mobile network didn't worked, so I tried closing back the bootloader. I made it with "s1tool relock.exe", and it really closed it back. The instructions I followed while doing it, said that I shouldn't start the phone after doing the relocking and disconnecting it from the computer. Accidentally I switched it on, and now it won't turn on. Only the startup vibration and green led flash. If I connect it to the computer it keeps connecting and deconnecting, I don't know how to open up the bootloader again if it's possible at all.
Is it repairable?
Thank you for your help.
Click to expand...
Click to collapse
Flash THIS with flashtool. The download is about 213 MB, although it may say differently when downloading, just wait till it's finished.
It's original Sony Ericsson Firmware and can be flashed on a device with a locked bootloader. Not sure about the version, although it says 2.1.1.A.0.6, it may be older, but i don't have a U20, so I can't check. It should be possible to upgrade it with Sony Update Service if it's an older version. Good luck.
Thank you!
It worked. Can I ask that too, is there a safest way to solve the no network problem?
Rodage said:
Thank you!
It worked. Can I ask that too, is there a safest way to solve the no network problem?
Click to expand...
Click to collapse
Depends on your simlock certificate or how your phone was unlocked from it's original network. There are two or three methods (msm_7227_semc, msm_7227_setool2, and maybe one for omnius too) , just try them and check if you get a signal before you flash any custom firmware. If you don't get a signal, relock it again and try a different method.
Flashtool used to be quite good at figuring out which method worked best, but I don't know if that still supports unlocking 2010 devices. I've got 0.9.13 and there is a BLU (Bootloader UnLock) button.. just try that
I opened it again with msm7227_semc, bacuse the others didn't worked, and installed it again. Now everything is fine, but the home button and the screen lock still not works:/ I think I'll leave it this way, and not risk one more time my network connection.
Thanks for your help.
Rodage said:
I opened it again with msm7227_semc, bacuse the others didn't worked, and installed it again. Now everything is fine, but the home button and the screen lock still not works:/ I think I'll leave it this way, and not risk one more time my network connection.
Thanks for your help.
Click to expand...
Click to collapse
If it's unlocked and the network is still there you can do whatever you want with it There's no need to lock it ever again so you can experiment with kernels and roms all you want.
What was the matter with the home-button and the screenlock? Do the other buttons work and is the screen ok when you slide out the keyboard?
SmG67 said:
If it's unlocked and the network is still there you can do whatever you want with it There's no need to lock it ever again so you can experiment with kernels and roms all you want.
What was the matter with the home-button and the screenlock? Do the other buttons work and is the screen ok when you slide out the keyboard?
Click to expand...
Click to collapse
The other buttons are all fine, and the home looks fine too, just the only way to use it is to turn on the screen with it. Which hasn't got a lock on it, when I push any button, it switches right to the home screen. Turning on lock patterns and others didn't helped. Maybe can I use external applications to substitute the functions?
Rodage said:
The other buttons are all fine, and the home looks fine too, just the only way to use it is to turn on the screen with it. Which hasn't got a lock on it, when I push any button, it switches right to the home screen. Turning on lock patterns and others didn't helped. Maybe can I use external applications to substitute the functions?
Click to expand...
Click to collapse
Hmm, sounds a bit like the ROM doesn't want to go to sleep. Maybe you could reboot into recovery, and wipe data/factory reset, wipe cache and wipe dalvik-cache (from the advanced menu). I'm sure you already did that, but it can't hurt to do it again, and see if that fixes the problem
The phone should enter deep-sleep after about 5 seconds after the screen is turned off, in which case the only way to wake up the screen are the power-button and the home-button. pressing menu or back should keep the phone asleep. If after about 10 or 20 seconds you can still wake up the screen with the back or menu buttons you might want to check if there's an app keeping the phone awake.
Done factory reset and cache wipe already multiple times. Just realized how annoying is the dysfunctional home button, so I tried MiniCM7-2.2.0, MiniCM9-3.0.5 with nAa-11,13,14 and nAa-ics-04. Unfortunatley didn't worked the home button or the screen lock with none of them. At first time, I installed the MiniCM10, but the phone was relatively slow with it and buzzed, so I switched to MiniCM7.
Screen timeout and turnoff delay both set to immediately, but even the camera button can turn on the screen no matter how many time elapses. Can the original MiniCM apps keep it awake? I installed a task killer, but no change.
Rodage said:
Done factory reset and cache wipe already multiple times. Just realized how annoying is the dysfunctional home button, so I tried MiniCM7-2.2.0, MiniCM9-3.0.5 with nAa-11,13,14 and nAa-ics-04. Unfortunatley didn't worked the home button or the screen lock with none of them. At first time, I installed the MiniCM10, but the phone was relatively slow with it and buzzed, so I switched to MiniCM7.
Screen timeout and turnoff delay both set to immediately, but even the camera button can turn on the screen no matter how many time elapses. Can the original MiniCM apps keep it awake? I installed a task killer, but no change.
Click to expand...
Click to collapse
If it happens on all ROMS, maybe it's your home-button keeping the phone alive, as in that it makes continuous contact. Wouldn't know what to do about that though. Does it happen on stock firmware too?
SmG67 said:
If it happens on all ROMS, maybe it's your home-button keeping the phone alive, as in that it makes continuous contact. Wouldn't know what to do about that though. Does it happen on stock firmware too?
Click to expand...
Click to collapse
No, when I restored it with the Sony Update Service everything worked fine on the stock 2.1, and it is still possible to turn on the screen with the home button, but it's other functions are out.
Wow, this time I didn't installed the gapps like it was written in the CM wiki (http://wiki.cyanogenmod.org/w/Install_CM_for_mimmi), both the home button and screen lock works. Why it is written in the "Install CM for mimmi" article if the gapps on the download page is for MiniCM10?
Whatever, shame on me, I should've just take it seriously, and not follow the instructions blindly.:silly:
Thanks for all of your help.:good:
Rodage said:
Wow, this time I didn't installed the gapps like it was written in the CM wiki (http://wiki.cyanogenmod.org/w/Install_CM_for_mimmi), both the home button and screen lock works. Why it is written in the "Install CM for mimmi" article if the gapps on the download page is for MiniCM10?
Whatever, shame on me, I should've just take it seriously, and not follow the instructions blindly.:silly:
Thanks for all of your help.:good:
Click to expand...
Click to collapse
If you get the ROM from the thread in x10minipro development section of this forum, there is a link to the proper gb-gapps

Xperia Z2 Blank Screen

Hello,
I have a very strange problem with my Xperia Z2. After unlocking the display on the device is blank. You can see the brightness, the touch works, because when I swipe my fingers I can hear android sound but there is no picture. I must do "lock - unlock" pattern 3-4 times, sometimes even more to get the display work properly. I tried to fix it by using software repair but it didnt work, and also
factory reset. Its just so iritating, I cant even lock my phone anymore, I try to keep the display on as much as possible if someone trys to call me so I can answer it. Device is currently running on Existenz ROM but the issue started on the stock so I flashed custom rom but it didn't help. So this is probably a hardware problem and if it is, what could be broken ( is it display, GPU,whatever ) or it could be a software problem ? Any help would be appreciated.
Can you see your lockscreen?
iXaidyiu said:
Can you see your lockscreen?
Click to expand...
Click to collapse
No, no the "lock-unlock pattern" is reffered to simply pressing the unlock button on the phone. There is just blank display and light is on as I mentioned but no picture. After pressing button many times the picture finaly comes and then it's normal. It only happens when phone goes to sleep mode or after I lock it.
If your phone reboots can you see the SONY logo and the boot animation as well?
iXaidyiu said:
If your phone reboots can you see the SONY logo and the boot animation as well?
Click to expand...
Click to collapse
Nope, there is nothing. Just a sound and LED works, and blank screen. Then again, when the phone finally reboots, pressing lock-unlock button will do the trick. It seems like, when I dont touch the phone longer time, it's harder to get screen on. But when I constantly work with the phone there is no need for that amount of "lock - unlock button move".
mby RIP graph.. try flashtools..
YamyYugi said:
mby RIP graph.. try flashtools..
Click to expand...
Click to collapse
It's probably hardware, now it's just a question of repair cost and is it worth it ?
TechCODE said:
Nope, there is nothing. Just a sound and LED works, and blank screen. Then again, when the phone finally reboots, pressing lock-unlock button will do the trick. It seems like, when I dont touch the phone longer time, it's harder to get screen on. But when I constantly work with the phone there is no need for that amount of "lock - unlock button move".
Click to expand...
Click to collapse
I think this is due to a faulty LCD screen, but the digitalizer seems fine. So maybe you could consult some local repair shops and prove if my hypothesis is correct. But first of all you should try also flashing another kernel (eg elite kernel) first to see if it is a software issue rather than a hardware issue.
Sent from my Sony D6503 using XDA Labs

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