Develop Bugs

[Q] Phone powers down and won't turn back on w/o pulling the battery

Anyone else having this problem?
The phone won't turn back on from what I think is locked because the screen is black, but none of the buttons do anything, I have to re-insert the battery and the phone will boot up with the power button. This happens almost every day.

Sounds like a problem with the digitiser/screen, and a candidate for a warranty return ?

Have you tried to switch it off (the screen with short press, not the power) and then on again with the power button? Sometimes it happens on my z too but its just a sw bug. Switch off and on helps here.
-- sent from htc z using xda app

I am able to lock and unlock with the power button normally.
tbalden said:
Have you tried to switch it off (the screen with short press, not the power) and then on again with the power button? Sometimes it happens on my z too but its just a sw bug. Switch off and on helps here.
-- sent from htc z using xda app
Click to expand...
Click to collapse

akira112 said:
Anyone else having this problem?
The phone won't turn back on from what I think is locked because the screen is black, but none of the buttons do anything, I have to re-insert the battery and the phone will boot up with the power button. This happens almost every day.
Click to expand...
Click to collapse
Could be a problem with the contacts on the battery -- perhaps the contact is loose, so when you bump the phone just right it loses power and shuts down.

I had this once last week. I left it sitting on the workbench in the garage for about an hour while I was out there and it became unresponsive to all buttons/keypresses.
A battery pull and it fired right up again.
It was -10C in the garage and the bench is metal. I chalked it up to getting too cold.
It hasn't done it again since I keep it in my back pocket (front pocket has claimed a few digitizers/LCDs in the past!).

akira112 said:
Anyone else having this problem?
The phone won't turn back on from what I think is locked because the screen is black, but none of the buttons do anything, I have to re-insert the battery and the phone will boot up with the power button. This happens almost every day.
Click to expand...
Click to collapse
This is definitely not an individual case as I saw so many DesireZ or G2 users in HK or China raised the same issues on the gfan forum (one of the China HTC forum).
My DesireZ is a genuine one with stock ROM. It happened 2-3 times already of what we called the "sleep dead" in China here.
I locked the phone then after a while when I tried to turn it on, all buttons became dead. Finally I have to pull out and insert the battery again to make the phone alive.
Some of the gfan forum members also encountered the same situation. Some of their phone are Euro version and some Asia Pac version but the cases are the same that means this problem are not only for a specific version. Some say it is becoz of temperature but I really don't think so. I am sure this is a bug......
Bring back to HTC is not a solution as this "sleep dead" phenomenon don't appear every minute. Mine has happened 3 times and I bought this DZ only about 2 weeks.

happened 2-3 times to me too, each time it was sitting in my pocket.
it's summer in Australia so i doubt its anything to do with being too cold.
hasn't happened for about a week now, so i kind of ignored the problem.

That is definitely not good news.
Mind is still stock from Bell, unlocked for use on Rogers.
I guess I may have to find a replacement phone soon.
manleyfu said:
This is definitely not an individual case as I saw so many DesireZ or G2 users in HK or China raised the same issues on the gfan forum (one of the China HTC forum).
My DesireZ is a genuine one with stock ROM. It happened 2-3 times already of what we called the "sleep dead" in China here.
I locked the phone then after a while when I tried to turn it on, all buttons became dead. Finally I have to pull out and insert the battery again to make the phone alive.
Some of the gfan forum members also encountered the same situation. Some of their phone are Euro version and some Asia Pac version but the cases are the same that means this problem are not only for a specific version. Some say it is becoz of temperature but I really don't think so. I am sure this is a bug......
Bring back to HTC is not a solution as this "sleep dead" phenomenon don't appear every minute. Mine has happened 3 times and I bought this DZ only about 2 weeks.
Click to expand...
Click to collapse

I encountered the same problem, so do my friends. Google maps causes the problem in 3 different phones.
Sent from my Desire Z

Anyone found a solution to this? Is it a s/w bug or a hardware issue? Thanks.

As far as I can tell, it's a hardware issue. Happened to me four times randomly before I took it in and exchanged at Bell. My new phone and the phone my friend got (at the same time as my first), has zero issues.
At the time, it didn't matter if it was cold, warm, fully charged, plugged-in, etc. It would do it randomly once every 1-4 days. It didn't even matter after I did factory reset (so software would not be an issue).
I have no idea what causes it but if you're getting the sleep-dead issue, I'd really recommend exchanging it if you can. Better to be safe than wait and find it's not an issue you can fix yourself.

I have a Bell stock Desire Z that has done this twice. First time it happened was when I tried wake it up in the morning after sleeping all night. The second time it was at a Christmas party. Just finished taking a picture. Went to take another shot, bang it was dead. Both times, pulled the battery and it came back to life.

Bought mine from Bell as well less than 2 weeks ago. Do they give any trouble to exchange it? Do they actually need me to factory reset it before returning/exchanging it?

sekhar_777 said:
Bought mine from Bell as well less than 2 weeks ago. Do they give any trouble to exchange it? Do they actually need me to factory reset it before returning/exchanging it?
Click to expand...
Click to collapse
I didn't have any troubles. I did a wipe and factory reset, then wipe again for security though. As long as you're only doing EXCHANGE (not refund), you have 30 days.

I must report that this issue happened on mine as well.
In JuicePlotter, the period where the unresponsiveness happened, juice plotter recorded no power.
(Either that or juice plotter only refreshes the graph when you open the app).
Happened twice within the first 48 hours of getting this phone. In day 3 now.

I have the same problem. It happend to me twice (in two weeks).
I would like to know if this is a software issue.
I still have the stock unmodified rom but am planning to install custom roms.
If this appears to be a hardware error, I should return my phone and get a new one. If it's a software thing, there will be a fix eventually, or I can just install a custom rom and be done with it...
anyone any idea?
Is there anyone with a custom rom who has the same problem?

Like I've said, I doubt it's a software issue (especially when it happens AFTER factory reset). But again, why take the chance? Better to be safe than sorry than be out $600.

happend to me today for the first time too... fully loaded, not pretty cold and stock rom on european version. it seems to simply being switched off. kind of sucks, as i'm having hardcase around which needs to removed everytime first.

mine too
it happened to me too. just after i started using maps and locations. i have it for a month now and this issue just started to surface the past 3 days...ohwell..hope we get a fix soon..or at least a "how to stop this issue" sometime real soon....:|

Phone Keeps Switching Off, Samsung Galaxy W I8150

Hi,
I have a strange problem with this phone..I've had it for more than a month but recently it randomly shutdowns itself when inside my pocket or out, even it its fully charged and on standby... it doesnt reboot so i have to manually turn it on..
It happens once or twice a day?? Does anyone else have this problem?
If so how do I cure it?
P.s. My phone is not flashed or rooted,
Thanks

FW Version ? Best to update OTA...
Sent from my GT-I8150 using xda premium

niceguy15 said:
Hi,
I have a strange problem with this phone..I've had it for more than a month but recently it randomly shutdowns itself when inside my pocket or out, even it its fully charged and on standby... it doesnt reboot so i have to manually turn it on..
It happens once or twice a day?? Does anyone else have this problem?
If so how do I cure it?
P.s. My phone is not flashed or rooted,
Thanks
Click to expand...
Click to collapse
You can soft reset you phone, any application might be conflicting ,,, if it doesn't resolve your problem then take care about the POWER button , it might be pressed when its in your pocket and the long press will result in Shutdown and Restart of phone.
Also check your battery terminals, they should not be loose.

alidsd said:
You can soft reset you phone, any application might be conflicting ,,, if it doesn't resolve your problem then take care about the POWER button , it might be pressed when its in your pocket and the long press will result in Shutdown and Restart of phone.
Also check your battery terminals, they should not be loose.
Click to expand...
Click to collapse
My damn Galaxy W was doing that too. Sent it away twice and have a replacement. Guess what? its still doing it!

Its most likely a battery issue, make sure your battery isn't fat. If it is it might be the culprit.
Or else some application inside is conflicting, like the developer did not test the app good enough then released it.

Have had 2 W's in the family doing this ,as above one went back to Samsung under warranty and that stll did it . I have just updated to CM9 - I am hoping this will cure - early signs are good

It should be, no offence to any JB fans out there, but CM9 is certainly winning in terms of stability. Do give me feedback.

KiD3991 said:
It should be, no offence to any JB fans out there, but CM9 is certainly winning in terms of stability. Do give me feedback.
Click to expand...
Click to collapse
CM9 - rocksteady

---------- Post added at 01:02 AM ---------- Previous post was at 12:57 AM ----------
[/COLOR]
KiD3991 said:
Its most likely a battery issue, make sure your battery isn't fat. If it is it might be the culprit.
Or else some application inside is conflicting, like the developer did not test the app good enough then released it.
Click to expand...
Click to collapse
+1
This is usually the problem most of the time, check your battery, replace as necessary..

Help!
niceguy15 said:
Hi,
I have a strange problem with this phone..I've had it for more than a month but recently it randomly shutdowns itself when inside my pocket or out, even it its fully charged and on standby... it doesnt reboot so i have to manually turn it on..
It happens once or twice a day?? Does anyone else have this problem?
If so how do I cure it?
P.s. My phone is not flashed or rooted,
Thanks
Click to expand...
Click to collapse
Hey, My phone is having the same problem, except that it never shuts down when i'm not using it. If it's plugged in, it's fine. If it's running an application (while not charging), it shuts off. I've had this phone for around 2 and a half years and this problem is just starting now.

[iop]wah said:
[/COLOR]
+1
This is usually the problem most of the time, check your battery, replace as necessary..
Click to expand...
Click to collapse
+1
I had the same problem, replaced the battery, and the problem was solved

[Q] Note 2 just wont turn on

I recently bought a new note 2, and everything was good and I love it!
But yesterday I was on the phone to a friend and initially I tried putting him on speaker phone, but the screen wouldn't turn on, only the soft touch keys at the bottom lit up. I thought nothing of it and continued my phone call.
It wasn't until he hung up I noticed i still coudn't the damn thing on. So i removed the battery and re inserted it. Here's where things get interesting though, now whenever i try to power it up, i get a little red light in my proximity sensor (i think) that flashes for about half a second.
I've tried soft rest, which does the same thing ( makes the proximity sensor light up for half a second)
Hard reset which does the same thing.
I haven't rooted the phone or anything. Luckily its still under manufacture warranty and I'll get samsung to have a look at it, but any thoughts on what it could be?

soljakid said:
I recently bought a new note 2, and everything was good and I love it!
But yesterday I was on the phone to a friend and initially I tried putting him on speaker phone, but the screen wouldn't turn on, only the soft touch keys at the bottom lit up. I thought nothing of it and continued my phone call.
It wasn't until he hung up I noticed i still coudn't the damn thing on. So i removed the battery and re inserted it. Here's where things get interesting though, now whenever i try to power it up, i get a little red light in my proximity sensor (i think) that flashes for about half a second.
I've tried soft rest, which does the same thing ( makes the proximity sensor light up for half a second)
Hard reset which does the same thing.
I haven't rooted the phone or anything. Luckily its still under manufacture warranty and I'll get samsung to have a look at it, but any thoughts on what it could be?
Click to expand...
Click to collapse
Well, I can tell the that the red light is normal, I get that too and its just because its booting up, when you turn your phone on, what happens exactly?

Thanks for the reply. When I press the power button, around a second later the red light blips for half a second and turns off, but the OS doesn't boot up and nothing happens.

soljakid said:
Thanks for the reply. When I press the power button, around a second later the red light blips for half a second and turns off, but the OS doesn't boot up and nothing happens.
Click to expand...
Click to collapse
Hmmm, This is the first time I heard of a situation like this... Try searching on the site or probably wait for someone to reply....

http://forum.xda-developers.com/showthread.php?t=2065626
Maybe you too.... Sorry that sucks.
This PSA was sent Flow style from my Note 2 N-7100

Now i am really getting worriyng about this, does note2 has started SDS ?
atleast 3-4 cases are reported with same symptoms.
Anyway can you tell
You were on which ROM when this happened?
Are you getting to reboot in recovery/download mod?

@dingokevin I had a read over the thread you linked, and I fear the worst has happened to my note 2. This seems like a serious issue and even a flaw with the motherboard perhaps? Thank the lord it is still under warranty. R.I.P old friend.
@dr.ketan Im not sure what SDS stands for... Yeah I was running stock touchwiz 4.1.1 I think. No modifications and no root what so ever, and nope :/ I tried holding down volume down key + home button + power but no cigar, just the proximity light flashes briefly.

SDS - sudden death syndrome
And if you are unable to get into download/recovery mode then nothing can be done except send it to service station. it highly suggests sudden death which is very known issue for SGS3.
Replying to your query at other thread, you will get motherboard replacement if it is under warranty.

Ahh thats probably whats happened then. Thanks guys, I'll send it off to samsung and have a word or two with them to see why this is happening to many people!

If possible share outcome here too.
Regards

dr.ketan said:
If possible share outcome here too.
Regards
Click to expand...
Click to collapse
Yeah defiantly will do. (Y) cheers

Same thing happened to my friends note 2 and some other people. Is sds happening to the note 2 also now ?? I am very worried
Sent from my GT-N7100 using xda premium

Or could be that screen was damaged somehow.
Sds bug generally happened due to long time in sleep mode.
It happened to him during call
Sent from my GT-N7100 using xda app-developers app

UtkarshGupta said:
Or could be that screen was damaged somehow.
Sds bug generally happened due to long time in sleep mode.
It happened to him during call
Sent from my GT-N7100 using xda app-developers app
Click to expand...
Click to collapse
I was just reading up on some possible causes here on XDA with peoples S3's and someone suggested corrupted NAND memory.. I think this maybe the case because before the phone call I had installed Gangster Rio (which i honestly did purchase off the play store, hand on heart) and after playing it for a while decided to un install it and get a refund. Could me doing this have caused the NAND memory to corrupt? The game is a pretty large file...

No imao no
Sent from my GT-N7100 using xda app-developers app

UtkarshGupta said:
No imao no
Sent from my GT-N7100 using xda app-developers app
Click to expand...
Click to collapse
I highly doubt it was screen damage, imho. I only received the phone last friday and have been cradling it like a fragile little baby, Its never been out of my sight lool.
Maybe i just got really unlucky and ended up with a faulty device.

If screen fault then in such case usually you can hear boot up sound. It seems your case very well fits to sds category only.
Sent from my GT-N7100 using xda premium

dr.ketan said:
If screen fault then in such case usually you can hear boot up sound. It seems your case very well fits to sds category only.
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
Thank you good Dr. =P

dr.ketan said:
If possible share outcome here too.
Regards
Click to expand...
Click to collapse
Hi Guys,
Got up this morning having left my Note 2 turned on and on charge overnight to discover this same fault -
slow flashing Red light and phone totally dead.
Unable to do anything to rectify the situation.
Still under warranty of course, phone only released in October 2012.
Is this a fault with the phone which necessitates replacement or just a battery problem?
Would be grateful for any advice / guidance / help.
Thanks,
Mike Longley.

MJLONGLEY said:
Hi Guys,
Got up this morning having left my Note 2 turned on and on charge overnight to discover this same fault -
slow flashing Red light and phone totally dead.
Unable to do anything to rectify the situation.
Still under warranty of course, phone only released in October 2012.
Is this a fault with the phone which necessitates replacement or just a battery problem?
Would be grateful for any advice / guidance / help.
Thanks,
Mike Longley.
Click to expand...
Click to collapse
It seems also like SDS send it to Repair AFAIK is a chip problem, not battery so you can't do anything to repair it. If it is under warranty and with counter at 0 send it. They must repair it.
Enviat des del meu GT-N7100

CAUTION

I request users to please check the screens closely of their Xperia ZL. Disable the "auto-brightness", keep the brightness to maximum and set the screen time out a little higher say 5 minutes. My Software version is 4.2.2. The screen FLICKERS. I had my previous Xperia ZL exchanged because of this problem and the "new" phone has the same issue. I am currently having a miserable experience with Sony and their service centers here in India. My previous ZL had a motherboard problem and I am not totally sure if the "new" one is really new or the old wine in a new bottle. If things persist like this I'll probably head to the consumer court.
Any inputs will be greatly appreciated.

A320232 said:
I request users to please check the screens closely of their Xperia ZL. Disable the "auto-brightness", keep the brightness to maximum and set the screen time out a little higher say 5 minutes. My Software version is 4.2.2. The screen FLICKERS. I had my previous Xperia ZL exchanged because of this problem and the "new" phone has the same issue. I am currently having a miserable experience with Sony and their service centers here in India. My previous ZL had a motherboard problem and I am not totally sure if the "new" one is really new or the old wine in a new bottle. If things persist like this I'll probably head to the consumer court.
Any inputs will be greatly appreciated.
Click to expand...
Click to collapse
I did and no flicker for me.

danieldp1990 said:
I did and no flicker for me.
Click to expand...
Click to collapse
Then surely it's a case of me being conned.

No problem on mine either. Please do note that there have been some reports from Z/ZL users having screen flickering experience after upgrading to 4.2.2.

obborr said:
No problem on mine either. Please do note that there have been some reports from Z/ZL users having screen flickering experience after upgrading to 4.2.2.
Click to expand...
Click to collapse
Hmmm the problem seems to come and go. But my previous ZL had a motherboard issue as confirmed by SONY. As I'm typing this message, there's no flickering at all. I am confused. I want to get things right within the warranty period.

A320232 said:
Hmmm the problem seems to come and go. But my previous ZL had a motherboard issue as confirmed by SONY. As I'm typing this message, there's no flickering at all. I am confused. I want to get things right within the warranty period.
Click to expand...
Click to collapse
Yes, it is very frustrating. Some just restart their phone and the problem is just gone. Some experience the problem again after a few days. And not many people have this problem. So, we can't tell right now if the problem comes from the new firmware or from the hardware itself.

When I keep brightness full n that brightness slider is on screen it flickers once while rotating the screen.. When I remove that brightness slider n go to main settings menu no flickering occurs also when auto rotate off no flicker...i thing but I never use full brightness n moreover it flickers just once before rotating so I guess nothing much to worry.
India ZL 6502
Sent from my C6502 using xda premium

No issues here, C6503 4.2.2.

it happened to me one time
after I updated to 4.2.2

unmaskedfalesh said:
When I keep brightness full n that brightness slider is on screen it flickers once while rotating the screen.. When I remove that brightness slider n go to main settings menu no flickering occurs also when auto rotate off no flicker...i thing but I never use full brightness n moreover it flickers just once before rotating so I guess nothing much to worry.
India ZL 6502
Sent from my C6502 using xda premium
Click to expand...
Click to collapse
Thanks everyone..
Hmm btw another question, the replacement unit I got comes loaded with those wallpapers one usually sees in demo units. Here, the ones in the last few rows. Please check this link :
http://forum.xda-developers.com/showthread.php?t=2152482
And is it true that it's not possible to get a SIM running in demo units? I am able to make and receive calls but, for some reason I'm getting a feeling that the replacement I got is a demo unit. The IMEI number on the box and that of the phone are the same but the box does not contain the charger, earphones and the USB cable.

BTW, what I mean by flickering is CONTINUOUS faint flickering of the screen. On the entire screen. The screen shivers!

A320232 said:
Thanks everyone..
Hmm btw another question, the replacement unit I got comes loaded with those wallpapers one usually sees in demo units. Here, the ones in the last few rows. Please check this link :
http://forum.xda-developers.com/showthread.php?t=2152482
And is it true that it's not possible to get a SIM running in demo units? I am able to make and receive calls but, for some reason I'm getting a feeling that the replacement I got is a demo unit. The IMEI number on the box and that of the phone are the same but the box does not contain the charger, earphones and the USB cable.
Click to expand...
Click to collapse
charger battery earphones have separate warranty (6 months) so probably thats y not included .. besides u only exchanged the phone and not everything right

demonicjas said:
charger battery earphones have separate warranty (6 months) so probably thats y not included .. besides u only exchanged the phone and not everything right
Click to expand...
Click to collapse
Yes only the phone was replaced by them. But, the flickering comes and goes. I am having a horrible time here. Is there any chance of a refund? Worst case, I will ask them to give me an XZ as I have lost all faith in ZL anymore.

Every xperia has a demo installed in the phone..it has a demo folder somewhere inside the internal memory which contains the video demo file I foud out when I was exploring the internal memory n there is some code to activate demo on the phone all phones so no need to worry abt that n regarding only getting phone...its policy that company will exchabge obly things that u have problems with...since you had problem in phone and not in accessories so they sent you only phone nothing much I myself got replacement for faulty led indicator n they replaced only phone...
Sent from my C6502 using xda premium
---------- Post added at 09:08 PM ---------- Previous post was at 09:01 PM ----------
I tried again but it doesnot flicker at all...and do u keep brightness full all the tym...bcz its so bright even at 50% . I keep mine at 17% with auto brightness on..moreover if its bothering you y dont u demand to talk to one of the company executive n tell them issue they might offer you another device n this time after checking every thing accept the device n about Z Its kinda waste to get that cause it has much more problems n bugs than zl...search the forum u will find a plenty n I dont think you will want more problems
Sent from my C6502 using xda premium

unmaskedfalesh said:
Every xperia has a demo installed in the phone..it has a demo folder somewhere inside the internal memory which contains the video demo file I foud out when I was exploring the internal memory n there is some code to activate demo on the phone all phones so no need to worry abt that n regarding only getting phone...its policy that company will exchabge obly things that u have problems with...since you had problem in phone and not in accessories so they sent you only phone nothing much I myself got replacement for faulty led indicator n they replaced only phone...
Sent from my C6502 using xda premium
---------- Post added at 09:08 PM ---------- Previous post was at 09:01 PM ----------
I tried again but it doesnot flicker at all...and do u keep brightness full all the tym...bcz its so bright even at 50% . I keep mine at 17% with auto brightness on..moreover if its bothering you y dont u demand to talk to one of the company executive n tell them issue they might offer you another device n this time after checking every thing accept the device n about Z Its kinda waste to get that cause it has much more problems n bugs than zl...search the forum u will find a plenty n I dont think you will want more problems
Sent from my C6502 using xda premium
Click to expand...
Click to collapse
I have done all possible things from my end. My first ZL had a motherboard problem and after much argument, I got the replacement which isn't any better. They initially wanted to replace the motherboard only but I rejected it. I had asked for a completely new phone.
I usually keep the display at "auto". But now, I have kept it at "max" to check if the flickering occurs. It comes and goes. I last saw the flickering today morning. I will ask for a refund since I cannot keep a faulty product. And, I agree with you about ZL>Z in many aspects. This phone fits my requirements perfectly but what I have been going through over the past few days...a real nightmare.

No Flicker Here. Sony Xperia ZL C6506 running latest update 4.2

A320232 said:
I have done all possible things from my end. My first ZL had a motherboard problem and after much argument, I got the replacement which isn't any better. They initially wanted to replace the motherboard only but I rejected it. I had asked for a completely new phone.
I usually keep the display at "auto". But now, I have kept it at "max" to check if the flickering occurs. It comes and goes. I last saw the flickering today morning. I will ask for a refund since I cannot keep a faulty product. And, I agree with you about ZL>Z in many aspects. This phone fits my requirements perfectly but what I have been going through over the past few days...a real nightmare.
Click to expand...
Click to collapse
i understand your problem like you i am too a little touchy about my devices faults..then its better you directly demand talking to one of the executive manager. bt sad to say ,i dont think they will refund.and this time if they exchange ask a sealed box.

It's 100% related to the 4.2.2 update, so be comforted it's not in anyway hardware related. This was one of the primary reasons I downgraded back to 4.1.2.

spielnicht said:
It's 100% related to the 4.2.2 update, so be comforted it's not in anyway hardware related. This was one of the primary reasons I downgraded back to 4.1.2.
Click to expand...
Click to collapse
The problem is temporarily solved with a fresh install of the 4.2.2 update and then randomly comes again. I do not know what to do. I am forced to run to the service centers time and again. Is there any way to downgrade to 4.1.2 without losing the warranty?

Yes, you can downgrade back to stock 4.1.2 firmware, many of us have done it (flickering was one of biggest reasons). It will keep your warranty 100% intact since the bootloader isn't touched. Remember, only unlocking your bootloader voids your warranty, and you're not doing that here. You're simply using a 3rd party tool (Flashtool) in place of Sony's PCC/SUS tool to flash a 100% stock Sony ROM.
Just follow these instructions I posted last week: http://forum.xda-developers.com/showthread.php?t=2342680
A320232 said:
The problem is temporarily solved with a fresh install of the 4.2.2 update and then randomly comes again. I do not know what to do. I am forced to run to the service centers time and again. Is there any way to downgrade to 4.1.2 without losing the warranty?
Click to expand...
Click to collapse

[Q] SGH-I467 boot up problem

When I boot up my SGH-I467 (Galaxy Note 8 AT&T LTE) it nearly always displays a screen that looks as though its damaged – just horizontal coloured lines or blocks of colour across the screen with no hint of any image. It only boots up correctly about 1 time in 20 or 30. Once it does boot up correctly everything works fine and there’s no hint of anything wrong with the screen itself. It’s also OK if I just turn the screen off between sessions. However, after recharging the tablet the problem recurs when I switch on. Its on firmware version 4.1.2 which appears to be the latest available for this AT&T version. Any ideas on what's happening and a fix?

Boot up problem - pictures added
erbc said:
When I boot up my SGH-I467 (Galaxy Note 8 AT&T LTE) it nearly always displays a screen that looks as though its damaged – just horizontal coloured lines or blocks of colour across the screen with no hint of any image. It only boots up correctly about 1 time in 20 or 30. Once it does boot up correctly everything works fine and there’s no hint of anything wrong with the screen itself. It’s also OK if I just turn the screen off between sessions. However, after recharging the tablet the problem recurs when I switch on. Its on firmware version 4.1.2 which appears to be the latest available for this AT&T version. Any ideas on what's happening and a fix?
Click to expand...
Click to collapse
I'm very disappointed that my post has had 118 views but no replies so I've added two photos of the screen showing what usually happens when I boot up. Note that about 1 time in 20 or 30 it boots up fine and operates perfectly in every respect and I've then been able to use it for hours continuously without any problem whatever.
Does any one know whether this is likely to be a screen/digitizer problem or something else?

erbc said:
I'm very disappointed that my post has had 118 views but no replies so I've added two photos of the screen showing what usually happens when I boot up. Note that about 1 time in 20 or 30 it boots up fine and operates perfectly in every respect and I've then been able to use it for hours continuously without any problem whatever.
Does any one know whether this is likely to be a screen/digitizer problem or something else?
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I have never seen this and I have the same model. It sounds like whatever it is, you should be able to take it in for warranty service.

I'd say probably the screen and not the digitizer
Sent from my SAMSUNG-SM-N900A using XDA Premium HD app

Boot up problem
esoh said:
I have never seen this and I have the same model. It sounds like whatever it is, you should be able to take it in for warranty service.
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Thanks for comments. Although its only about 3 months old it was a gift from the US and I live in UK so warranty service probably isn't an option.

erbc said:
Thanks for comments. Although its only about 3 months old it was a gift from the US and I live in UK so warranty service probably isn't an option.
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There's a post in this forum about screen replacement and I think that he does them as well. If you can't find a solution, then it may be the best way to go. Also, try asking Samsung themselves. If you explain the situation, they might be able to help you.

esoh said:
There's a post in this forum about screen replacement and I think that he does them as well. If you can't find a solution, then it may be the best way to go. Also, try asking Samsung themselves. If you explain the situation, they might be able to help you.
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I'm hesitant in attributing this to a screen problem. I normally swich off the device between sessions of use but then have the problem booting up to a good screen. However, I thought it would be easier just to leave it running and the screen has perfomed fne for the last 72 hours with me just fully dimming screen between sessions of using the tablet. Is there anything else that might cause this?

The only things that i could think to suggest would be
1) Have you tried wiping the cache?
2) Have you tried a factory reset?
I'm no expert, but if it were my device I would try both of these before sending the device in for warranty service.
Not saying either is a sure fix, but thats what I would do.
Sent from my SAMSUNG-SGH-I467 using XDA Premium 4 mobile app

dandroid7 said:
The only things that i could think to suggest would be
1) Have you tried wiping the cache?
2) Have you tried a factory reset?
I'm no expert, but if it were my device I would try both of these before sending the device in for warranty service.
Not saying either is a sure fix, but thats what I would do.
Sent from my SAMSUNG-SGH-I467 using XDA Premium 4 mobile app
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Sorry for long delay in responding to your suggestions. I'd already tried a factory resent but not wiping the cache. I did both of these after your suggestion but no change to the fault.