phone won't boot- just backlight - Xperia Z1 Q&A, Help & Troubleshooting

today is third day of using z1 but i haven't restarted or shutdown the phone ever since its first reboot after firmware update.
just a while ago my z1 was acting up, slow and buggy and stuff so i thought i might need to restart the phone because z1 has no memory clean up features like samsung phones do. (let me know if there is )
so i went ahead and turned the device off, waited about 5 seconds then turned it back on. Sony logo was up for about 2 seconds then screen goes to black but only back light is on. I waited thinking it is part of booting process but it took way too long.
i did hard reset by pressing power+vol up and turned it on again, problem still exists, only back light was on.
i had to do hard reset the phone for 6 freakin times, worrying about having to send this phone out to sony service center for weeks or wait for bell to stock their inventory which has no ETA i think, then it finally boot into colorful wave screen. that was the longest 5 minutes i experienced this year for sure!
i turn it back off and on thrice more to see if it happens again but it boot up just fine without no glitch. (colorful wavy screen kicks in right after sony logo)
anyways did anyone experienced the same thing? it looks like it's sort of software related problem, existed since Xperia Z, I can't believe sony didn't implemented fix for this [email protected] for Z1.
FYI my Z1 is from Bell(c6906), SN starts with BH900

choihan06 said:
today is third day of using z1 but i haven't restarted or shutdown the phone ever since its first reboot after firmware update.
just a while ago my z1 was acting up, slow and buggy and stuff so i thought i might need to restart the phone because z1 has no memory clean up features like samsung phones do. (let me know if there is )
so i went ahead and turned the device off, waited about 5 seconds then turned it back on. Sony logo was up for about 2 seconds then screen goes to black but only back light is on. I waited thinking it is part of booting process but it took way too long.
i did hard reset by pressing power+vol up and turned it on again, problem still exists, only back light was on.
i had to do hard reset the phone for 6 freakin times, worrying about having to send this phone out to sony service center for weeks or wait for bell to stock their inventory which has no ETA i think, then it finally boot into colorful wave screen. that was the longest 5 minutes i experienced this year for sure!
i turn it back off and on thrice more to see if it happens again but it boot up just fine without no glitch. (colorful wavy screen kicks in right after sony logo)
anyways did anyone experienced the same thing? it looks like it's sort of software related problem, existed since Xperia Z, I can't believe sony didn't implemented fix for this [email protected] for Z1.
FYI my Z1 is from Bell(c6906), SN starts with BH900
Click to expand...
Click to collapse
Try doing a wipe then repair with PC companion. If that doesn't work, take it back and get it replaced. I've have my Z1 for about 3 weeks now and haven't had any issues.

It's probably a defect unit. I'd take it back as soon as possible.

I just wanted to let you know that with xposed gearbox you can add a kill app button like on Samsung phones .
The kill app button will be in the recent section . Really handy.

aridoasis said:
Try doing a wipe then repair with PC companion. If that doesn't work, take it back and get it replaced. I've have my Z1 for about 3 weeks now and haven't had any issues.
Click to expand...
Click to collapse
never had problem after the first incident... i still have few days until exchange deadline so will see how it goes! thanks for your advice!
Lucian5800 said:
It's probably a defect unit. I'd take it back as soon as possible.
Click to expand...
Click to collapse
hopefully not.. even if it's defect i won't be able to replace it right away because the place i bought the phone from has no more z1 in stock.. plus i can't show them what happened because it's working just fine now.
SweFox said:
I just wanted to let you know that with xposed gearbox you can add a kill app button like on Samsung phones .
The kill app button will be in the recent section . Really handy.
Click to expand...
Click to collapse
what's xposed gearbox? is it a MOD?

Actually Android is pretty good at handling background processes on its own. Regularly killing Apps will just make your phone feel slower because it has to reload Apps instead of directly opening them out of the RAM.
I think you just experienced a software hiccup, if it is not happening again I would not worry about it too much.
Is power + Vol up the same function as the red reset button under the sim card cover?

I had the same problem after I had changed a setting - optimised backlight. When I changed the setting back the problem went away. The setting seems to have been removed on 257
Sent from my C6903 using XDA Premium 4 mobile app

Related

[Q] Xperia Z1 stuck on black screen on start

So my brand new 24 hour old Xperia Z1 will not start and only goes to a blank screen with the backlight on. It does show the SONY splash screen before this for a second.
The only way to shut it down is to do an up volume and on button combo or to hit the red reset button.
I've tried starting with the SIM and SD Card out but it doesn't seem to make a difference.
The phone has pretty much not been used at all so I am a bit shocked. Is there any thing I can try? It was working last night.
24 hours out of the box, just send it back for a new one.
even if its starts working again, for a £600 device I would just send it back and say you are not happy and want a new one
30Seconds said:
So my brand new 24 hour old Xperia Z1 will not start and only goes to a blank screen with the backlight on. It does show the SONY splash screen before this for a second.
The only way to shut it down is to do an up volume and on button combo or to hit the red reset button.
I've tried starting with the SIM and SD Card out but it doesn't seem to make a difference.
The phone has pretty much not been used at all so I am a bit shocked. Is there any thing I can try? It was working last night.
Click to expand...
Click to collapse
Did you wait a minute or two ?
mines takes ages to boot up after the sony logo...dont know what it is
MeLViN-oNe said:
Did you wait a minute or two ?
mines takes ages to boot up after the sony logo...dont know what it is
Click to expand...
Click to collapse
I went off and left it for about 10 minutes and it did finally restart. I suppose there is some sort of software conflict issue going on.
I did a factory wipe and it runs like lightning now. No idea which app is causing the conflict.
30Seconds said:
I went off and left it for about 10 minutes and it did finally restart. I suppose there is some sort of software conflict issue going on.
I did a factory wipe and it runs like lightning now. No idea which app is causing the conflict.
Click to expand...
Click to collapse
first boot up, upgrading apps..there is loads that can causea long boot, but nothing that needs a thread about a bootloop
MeLViN-oNe said:
Did you wait a minute or two ?
mines takes ages to boot up after the sony logo...dont know what it is
Click to expand...
Click to collapse
This is one of the fastest phones on the market and this shouldn't be happening. After I did my restore I set up again and synched and auto-updated apps and I had the same problem. I then tried deleting all of my uploaded apps one by one until they were all gone but this didn't help and the boot times were still about 5 minutes, often with the phone booting without remembering the brightness setting or even not booting at all.
So I did a factory reset again but this time did not account synch on setup or auto update apps and that seems to have fixed it for me. The phone is very fast and boots in under 30 seconds now, and runs without any lag whatsoever. I wish I could identify specifically what the issue is but so far no luck.

[Q] OTA Update - Screen Rotation Bug

Hi,
My Xperia gave an OTA Update and said it improves battery life and enhanced user experience.
After the update the screen rotation is all messed up. The screen settings are wrong. Worst of all, even after turning it off, the games are also not working right (probably because of wrong readings).
I have also tried *#*#7378423#*#* and tried to callibrate.. but of no avail.
Also the screen goes blank adn pressing the power button does not respond for a while.
Any idea how this update can be rolled back.. The phone is a mess now which is especially bad cause I was loving the experience so far. :S
Any help..
Bump..
Ive also done a factory reset and also updated via Sony PC Companion..
No use.. Im guessing Im the only one whose phone was updated from SONY yesterday to deliberately make me hate it .. :S
majidaziz said:
Hi,
My Xperia gave an OTA Update and said it improves battery life and enhanced user experience.
After the update the screen rotation is all messed up. The screen settings are wrong. Worst of all, even after turning it off, the games are also not working right (probably because of wrong readings).
I have also tried *#*#7378423#*#* and tried to callibrate.. but of no avail.
Also the screen goes blank adn pressing the power button does not respond for a while.
Any idea how this update can be rolled back.. The phone is a mess now which is especially bad cause I was loving the experience so far. :S
Any help..
Click to expand...
Click to collapse
Flash new firmware with flashtool...
yup did that.. finally to get rid of sony's stupid update and it worked..
Thankfully the phone is back as good as it was and does not lag on unlocking like it had started to do so.
One small problem, the rotate screen does not work sometimes, when I restart it it works. But atleast its not giving crazy readings like it was with SONY update.
majidaziz said:
One small problem, the rotate screen does not work sometimes, when I restart it it works. But atleast its not giving crazy readings like it was with SONY update.
Click to expand...
Click to collapse
Did you recalibrate from service menu after the final flashing? Just an idea..
no not really.. it started to work fine after flashing of the original software (4.3)
I DID however tried my best to recalibrate from Service menu BEFORE flashing i.e with the updated software patch from Sony.. but it didnt work. Every time I recalibrated on Flat surfaces, it said calibration successful.. but after a min or two wehn using the phone. all of a sudden they went bonkers again
After a day like that the readings stopped showin..?? I thought the phones hardware went bust .. but apparently a software issue..

[Q] LG G Watch R shuts down

I have a problem with my LG G Watch R. I use it just a week and in beginning it was all great, but after an upgrade(I think) to 5.0.1 my watch started to shut down randomly.
Sometimes when it shuts down I just turn it on and it works, but sometimes it wont turn on at all with button(holding it to 20 sec and nothing) only way to turn it on is to put it on charger until it turns on and than when removed from charger can be used normally until next shut down which could be for 5 min or few hours you can never know.
I tried to reset from settings and even form boot it and it didn't fix it. Can problem be in pairing it with rooted smartphone with unofficial rom or something like that?
I have also one shutdown yesterday for first time after 4 weeks and it is after 5.01 update.
I do not know why but it is possible that my hand position has pressed for more than 10s the power button ?
dersie said:
I have also one shutdown yesterday for first time after 4 weeks and it is after 5.01 update.
I do not know why but it is possible that my hand position has pressed for more than 10s the power button ?
Click to expand...
Click to collapse
It is possible, but mine shuts down even when standing on table, and on my wrist. I thing it is some battery management issue because it somehow shuts about the same percentage of battery(about 70% than about 52% etc..)
I am faced with the same problem... Were you able to solve it?
Me too... same problem. I don't known why.
Same here. Had the watch for a week, first week everything fine now it just shuts down and I am unable to start it without the charger. I have just upgraded the software.
vans2 said:
Same here. Had the watch for a week, first week everything fine now it just shuts down and I am unable to start it without the charger. I have just upgraded the software.
Click to expand...
Click to collapse
+1 Since last week, same issue here
Any idea guys ?
I performed a full factory reset 3x Times...Complete reset also from my phone, no luck here.
Any update on this? I have the same issue for a few weeks now and I'm about to send it in.
edgeball said:
Any update on this? I have the same issue for a few weeks now and I'm about to send it in.
Click to expand...
Click to collapse
Not for me...Shutdown is done randomly. Sometimes it's just few seconds after a reboot, sometime it's after 1 hour, sometimes it works for few days...I had also a reboot
in recevory & fastboot mode...Sorry to say LG, but your hardware is not efficient
I sent it in a few days ago. Will let you know once I get it back
I'd make sure you don't have any Wear Apps causing problems. I found that "Advance Settings" caused mine to regularly crash.
True, but crashing is one thing. The Probolem here is that the phone shuts down all the time.
Just got a letter from the company that's repairing my watch. Due to a parts that's not available the repair will take some more time. They sent me a list of the parts that are going to be replaced:
PCB assembly
Rechargeable battery
Cover assembly
LG2 (no idea what that's going to be)
Anyway. I'm glad they are fixing it and I'm looking forward to get it back soon.
Sent from my HTC One using XDA Free mobile app
After many phone calls and emails I won't get the watch back. However the store will give me a refund for it. Unfortunately I can't buy it here anymore. Gotta check ebay

Self Restart

I have got my Asus ROG Phone II for about 8 months and I have recently got some problems with the software. The phone suddenly turns off on it's own, when I am using it and stucks at the restarting process with Asus Logo and the loading bar on the lower side but doesn't open, even if I wait for a full whole hour. I have to press volume down + power off button to make it work again. I wanted to ask if any of you guys have got the same problem, or any clues how to solve it?
Well I had rooted my phone after a month of it's use and unrooted it. For about 2 Months before, my charging port stopped working and Asus Service Center fixed it, and I guess they somehow flashed my Phone, as I not don't have to download and install the new firmware. It was good in a way but I feel it is getting some lag during the use of certain apps and the problem which I mentioned earlier. I would be thankful and grateful for your replies.
Wishing all to stay safe and healthy
Fantasticooo said:
I have got my Asus ROG Phone II for about 8 months and I have recently got some problems with the software. The phone suddenly turns off on it's own, when I am using it and stucks at the restarting process with Asus Logo and the loading bar on the lower side but doesn't open, even if I wait for a full whole hour. I have to press volume down + power off button to make it work again. I wanted to ask if any of you guys have got the same problem, or any clues how to solve it?
Well I had rooted my phone after a month of it's use and unrooted it. For about 2 Months before, my charging port stopped working and Asus Service Center fixed it, and I guess they somehow flashed my Phone, as I not don't have to download and install the new firmware. It was good in a way but I feel it is getting some lag during the use of certain apps and the problem which I mentioned earlier. I would be thankful and grateful for your replies.
Wishing all to stay safe and healthy
Click to expand...
Click to collapse
Don't know what the problem is, but you've posted this in the wrong section!
I think I am in a similar situation. My phone's problem is that it kind of crash while booting up (stange lines shows on the screen like some glitch) , it doesnt boot up normally and it loops 3 to 4 times until it's left on a black screen. I am not sure of its status at this point for it is not responsive even to force restart (Vol down + Power) but it does work only once in a couple of minutes and proceeds to bootloop and back again to the black screen. I haven't rooted it but i did flash it from CN to WW which was successful and was using it perfectly for 4 months up until this situation. I dont know what exactly is the problem. Can anyone help me?
Same with me bro... Mines already bricked because of flashing it to the original version
Same here

Samsung Galaxy A71 died after updating to Android 11

Ok, so here is to explain what happened, so you can have a clue what am I talking about.
I bought Galaxy A71 a month ago (give or take), so out of the box it had Android 10. The phone was working flawlessly. Battery life awesome, pictures from camera great, etc. So, few days ago on March 26, 2021, an update to Android 11 came in. I am a tech nerd, I know about phones, rooting, flashing, etc.
So, I saw that I have around 78-80% of the battery so it was enough to download and install Android 11.
Downloading and installing and optimizing apps after went smooth as silk. I usually soft restarting my device after any software update, so I did that after the installation of Android 11 was entirely finished.
But, this is what happen when I restart my phone the normal way. I press and hold the power button, the dialog of Power off, Reset and Airplane mode came out, tapped twice the reset button and phone went restarting and just.... died. I remember that when I soft restarted my phone, the battery was on 72%. So I tried any trick in the books to turn on my phone again like combinations of pressing buttons, then with USB cable, charger, etc, but nothing was responsive. It's like the phone was clinically dead.
My phone is still under warranty and I will probably end up taking it to the T-mobile store, but the point of this thread is to inform others of the situation like mine and see if someone else had the same problem?
Maybe someone will post a solution what to do in situations like this?
If I find any solution, I will update this post with all the details.
You probably done it.But have you plugged it into A computer to see if the computer can detected it?
Essex_Hal said:
You probably done it.But have you plugged it into A computer to see if the computer can detected it?
Click to expand...
Click to collapse
Yes i did, nothing shows in Device Manager. As I said, I tried every possible trick to wake the phone up, but it was unsuccessful.
I end up taking it to the carrier store cuz it is still under warranty. They told me if they can't fix it, they'll probably give me a new one or to wait for Galaxy A72 To arrive in 2 weeks. We'll see what happens.
BorisMKD said:
Yes i did, nothing shows in Device Manager. As I said, I tried every possible trick to wake the phone up, but it was unsuccessful.
I end up taking it to the carrier store cuz it is still under warranty. They told me if they can't fix it, they'll probably give me a new one or to wait for Galaxy A72 To arrive in 2 weeks. We'll see what happens.
Click to expand...
Click to collapse
Least you still have A warranty to help you.
Good luck with it.Hope you don't lose your data if it's still on the phone.
Essex_Hal said:
Least you still have A warranty to help you.
Good luck with it.Hope you don't lose your data if it's still on the phone.
Click to expand...
Click to collapse
They fix it, it said it was software problem, got stuck on rebooting. I get it today (2 weeks later) and it worked. They managed to turn it on but without a factory reset, every app was there, every picture, video, contacts, call history, etc. I don't know how they did it, but they did. So when I got my phone back I tried to restart it normal way, long press of the power button, then tap Restart and again restart. The phone restart it without a problem. I was happy. Then later that day (2 hours ago when I'm writing this, I notice that always on display when i touch the phone screen will show up but doesn't switch off after 10 seconds (I set it up like that), instead it started to blink in intervals like i was touching the screen continuously. Then I did a deep soft reset. You know, when you press Volume down and Power button at the same time and.... got the same problem again. Phone is non functional, none combination of pressing buttons worked, just like i describe it in the OP. Just for information, I did the same on my previous phone Galaxy A7 2018 and never had this problem. I did it on this phone too, never had a problem. Then I remember it that on both phones when i do that and not having problems were running on Android 10. this phone now update it to Android 11 and that buttons combination is probably bricking the phone. It's just a thing I notice. So I am planning to call the official service that fixed the phone how did they do it, so maybe I can do it myself too. I don't want to wait for another 2 and a half weeks.
I am facing the same issue. And I think my warranty is out. Did you get to ask them how can you turn it on yourself!!
I would really appreciate some help here!
BorisMKD said:
Ok, so here is to explain what happened, so you can have a clue what am I talking about.
I bought Galaxy A71 a month ago (give or take), so out of the box it had Android 10. The phone was working flawlessly. Battery life awesome, pictures from camera great, etc. So, few days ago on March 26, 2021, an update to Android 11 came in. I am a tech nerd, I know about phones, rooting, flashing, etc.
So, I saw that I have around 78-80% of the battery so it was enough to download and install Android 11.
Downloading and installing and optimizing apps after went smooth as silk. I usually soft restarting my device after any software update, so I did that after the installation of Android 11 was entirely finished.
But, this is what happen when I restart my phone the normal way. I press and hold the power button, the dialog of Power off, Reset and Airplane mode came out, tapped twice the reset button and phone went restarting and just.... died. I remember that when I soft restarted my phone, the battery was on 72%. So I tried any trick in the books to turn on my phone again like combinations of pressing buttons, then with USB cable, charger, etc, but nothing was responsive. It's like the phone was clinically dead.
My phone is still under warranty and I will probably end up taking it to the T-mobile store, but the point of this thread is to inform others of the situation like mine and see if someone else had the same problem?
Maybe someone will post a solution what to do in situations like this?
If I find any solution, I will update this post with all the details.
Click to expand...
Click to collapse
have same issue too anyways to fix it?

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