Question Black Screen after taking the device from the backpack - Samsung Galaxy Tab S8

Dear XDA community. I'm writing to ask whether the same happened to you and whether you do know how to fix it.
I have a backpack where there is a dedicated soft space for a computer where I usually put my tablet ( with keyboard cover). It happens relatively often that after I pick it from there in order to use it the device has a black screen. It can still receive notifications, and if I connect it to the power it still vibrates but the screen remains black.
The only way that I found to put it back in working order is to press "power + volume down" until it force restarts. Other things that I found online to correct the problem did not work and they are: spam power button, attach and detach the power cable, detach and reattach the keyboard, remove the magnetic back cover.
This behaviour does not happen always but exclusively when I'm carrying it in my backpack and not when at home.
I have checked the threads about the Tab S8 but due to the fact that the Tab S8 does not have it's own sub-forum it's kinda hard to check for duplicates.
Do you have any ideas on why this happens?
P.S. It used to happen before and was very annoying, somehow it stopped. Yesterday I performed a system update and now it is doing it again. My current software version is:
Build Number: TP1A.220624.014.X700XXU3BWB4 ( One UI 5.1, Android 13, Patch 1 February 2023).
Thanks in advance to anyone that can help.

Update on the topic, I did a factory reset without restoring data and it still keeps doing the same thing. Somehow the screen gets disabled in the backpack while I'm travelling but the tablet is still on and still connects to WiFi networks and Bluetooth devices.

Same problem, same firmware. Did you fix it?

Nope, nothing. Some days it doesn't do that, some days it does every time I put it in my backpack. As you may have read in other posts that I wrote there is also no chance to really have a refund. Best case scenario if you can really prove that something is broken you can have a replacement.

Related

Bricked - Probably Hardware, Any thoughts (or fun ideas)

Well, I think I have finally managed to kill my PDA2k. It was a late night and long story short, it got wet (but not too wet).
The next day, I plugged it into a usb power supply (car charger) and it would begin to boot (displayed the info at bottom right screen) but would fail when it tried to load the OS. I waited for a bit a re-tried a few times. Then the red light came on (top right led) and it no longer even attempts to boot. I disassembled it and made sure everything was dry and clean and it still just turns on the red light and does not attempt to boot.
So, does anyone have any other thoughts/suggestions?
I'm going to go ahead and be prepared for the worst and assume that it is in fact, done. What should I do with it? I do have an insurance policy on it (via State Farm) but I'm not sure if that is covered.
Anybody know of some cool DIY projects to make use of the parts? Or just fun ways to say "farewell" to a phone?
Well sweet moogly googly, it started working again!!! I just left it on the charger for a while and the red light went off...then I hit reset and it booted just fine!
Its like Christmas came about 15 days early...I hadn't made a backup of my data in a LONG time.
If anyone looks over my posts history, they'll see that there have been several "close calls." But I guess this is just a testament to HTC and their ability to build "resilient" hardware.
Well all is not well in PDA2K land...again.
The last post was a bit premature as it is having some serious issues. First, I cannot communicate (hear/talk) on any phone calls. I can make and receive calls fine, but no audio coming or going (despite sounds and recording working). Second, I am unable to connect via ActiveSync (or even mtty), so I can't reflash to see if that is the issue. Third, although it is becoming less frequent, the device will just power off and the red led will come on. After a few seconds the light will go off and it can be restarted. Last, the power button does not work at all. So even when it is working, there is no way to turn off the screen (without using a program).
One other related note: when you do a reset it loses the date/time.
All in all, it seems as though it is very rapidly becoming a glorified paperweight. Any ideas? If not, I'm back to deciding how to send it to "gadget heaven."
Would anyone has any use for the hardware?

Want to FLash but powerbutton don't work

Hello Everyone,
I have a BA and I want to flash it but the power button dose not work..opened it up and found that the mechanism under the button has dropped and hanging on by a thread. The device works but I need the power button to get into bootloader mode.
So the question is this: is there a way to get into bootloader without using the powerbutton?
yolandanelson31 said:
Hello Everyone,
I have a BA and I want to flash it but the power button dose not work..opened it up and found that the mechanism under the button has dropped and hanging on by a thread. The device works but I need the power button to get into bootloader mode.
So the question is this: is there a way to get into bootloader without using the powerbutton?
Click to expand...
Click to collapse
From Jadel....
First, some advice. Several people have asked this question and it has been responded to in other threads. On forums, ALWAYS try and use the search function before asking. It might save you some time, and it also may give you further ideas or solutions to the problem. Now on to the response I gave someone else last year. Read the whole post.
IT IS POSSIBLE!
BUT DO THIS AT YOUR OWN RISK!!! I'M NOT RESPONSIBLE FOR ANY DAMAGED OR FRIED PDAs
I know because I myself have done it on an I-mate (Himalaya). It took some trial and error but I am now running WM6. In my case though, I had to completely remove the power button from the device. The previous owner dropped it on its head, and I got it for free, unfortunately most of the top is missing, including the power button.
SO, on to how I did it. I took a paper clip (metal) and put it about 1cm down, slightly to the right of where the power button used to connect to the motherboard. Make sure you have turned your XDA/IMATE on before doing this. You'll find that when you find the right area, your device will turn off, or the screen will go dark (like holding the power button for a second or giving it a quick tap).
If you manage to hold it there for the right period of time, while pressing the other bootloader buttons, then you will be able to enter bootloader.
This took me close to an hour to get just right, on both occasions I have done it, but it eventually worked.
Note: I have no idea how exactly this worked, but it did. My IMATE was useless without me updating the rom, so I had no worry about frying it if I did something wrong, that is why I was OK with playing around with its insides. BEWARE that you MAY DO DAMAGE to the device.
Good luck.
If you have no clue just don't post!!
First off I have searched here and the internet as a whole and your suggestion didn't work! I have taken apart and modified to add a camera to my working BA ( yeah I got 3 of them) so "..playing around with its insides. BEWARE that you MAY DO DAMAGE to the device.." is no worry of mine. Second off, if you had taken notice I have been on this board since Feb 2007 and I have only had to ask 3 questions, which means my searching skills might just be working on some level.
Maybe I should have been more specific: is there a software boot loader for the sx66?
David389 said:
From Jadel....
First, some advice. Several people have asked this question and it has been responded to in other threads. On forums, ALWAYS try and use the search function before asking. It might save you some time, and it also may give you further ideas or solutions to the problem. Now on to the response I gave someone else last year. Read the whole post.
IT IS POSSIBLE!
BUT DO THIS AT YOUR OWN RISK!!! I'M NOT RESPONSIBLE FOR ANY DAMAGED OR FRIED PDAs
I know because I myself have done it on an I-mate (Himalaya). It took some trial and error but I am now running WM6. In my case though, I had to completely remove the power button from the device. The previous owner dropped it on its head, and I got it for free, unfortunately most of the top is missing, including the power button.
SO, on to how I did it. I took a paper clip (metal) and put it about 1cm down, slightly to the right of where the power button used to connect to the motherboard. Make sure you have turned your XDA/IMATE on before doing this. You'll find that when you find the right area, your device will turn off, or the screen will go dark (like holding the power button for a second or giving it a quick tap).
If you manage to hold it there for the right period of time, while pressing the other bootloader buttons, then you will be able to enter bootloader.
This took me close to an hour to get just right, on both occasions I have done it, but it eventually worked.
Note: I have no idea how exactly this worked, but it did. My IMATE was useless without me updating the rom, so I had no worry about frying it if I did something wrong, that is why I was OK with playing around with its insides. BEWARE that you MAY DO DAMAGE to the device.
Good luck.
Click to expand...
Click to collapse
I lifted this directly form another site I have subscribed to
http://relaysgoldens.com/sx66/tools/ROM_Update_Tools.rar

[Q] phone will not power off or on properly. Shut down menu pops up constantly

I have searched this exact title and came up with 10 pages and I never saw anyone else with this problem. Surely I cannot be the only one.
After the Gingerbread upgrade I was getting the tethering message/force close, during that time my phone started to randomly shut off ( settle down Beavis, this isn't the same question thats been asked a thousand times ) and reboot. I lived with the tethering message problem for as long as I could but my phone became more ignorant day by day. I finally found a fix for the tethering issue and haven't had a return problem with that but now my phone either stays in standby mode ( dark screen ) and refuses to respond to the hard button to wake it up OR once on it refuses to go into standby mode and stays on until I pop the battery or I go into settings and time the screen out in 15 seconds ( often times this doesn't shut it down either ). Sometimes I can get it to come on by multiple pressing the power button ( this can't be healthy ) and the lock screen will flash momentarily just long enough for me to unlock the screen. Other times it will go to the lock screen while I'm in the middle of something.
Every day at some point while it's on and I'm using it, the power button option screen pops up ( silent mode, flight mode, power off ). When I'm done with a call I try to go into standby and it just sets there...ON.
The thought has crossed my mind that the button doesn't work or has a short but I really think it's something else ( I hope ). Can somebody help me? I am not very techie although I have updated the phone three times myself. It is unrooted and 2.3.5
Thank you in advance
I would go with the power button. It's a known issue on captivate.
mrhaley30705 said:
I would go with the power button. It's a known issue on captivate.
Click to expand...
Click to collapse
I stopped by the AT&T store the other day to check on insurance (ends up I didn't have it) and told them about my button not working properly and how the Captivate was notorious for this problem and they all said "We've never heard that". So the gadget gal is in there so she offers to take it apart and check it. She claims there isn't anything wrong with it and that it has the same amount of spring as the volume buttons. She then noticed that when she put the battery back in the phone came on automatically, I said it's not supposed to do that and she agreed but fortunate for me since I cannot turn it on. She then says I'm eligible for an upgrade and try's to sell me a new phone. I don't want a new contract.
So should I try and buy a new button and change it or could it be something else? Thank you in advance.
Are you using a case for your phone by any chance? If yes, is it too tight? Maybe the power button gets stuck because of that sometimes? Just a long shot! You stated that power menu pops up once in awhile when you're using it, is it possible that the way you grip the phone causes that? (Just trying to help and not trying to offend you btw.)
You might want to try flashing UCKK4 with bootloader(use it from the one click master collection of stock rom's) just to make sure that there is no issue with the firmware. It is not likely to fix your problem but it's good to have a clean start. At least that's what I would do to begin with.
Since you're willing to change the power button, why not do an experiment? Remove the power button and see if there is any change? If it works fine then it's the power button that's faulty else it's a hardware problem.

[Q] Broken power button on my SGS... Solutions?

Hey everybody, I have been using a refurb I9000 for over a year now. After a year of being knocked about, it's still a great phone. I'm running Slim Bean on it at the moment and its handling it great
Unfortunately, a couple months back, the power button stopped working. The phone was acting weird one weekend and stuck in a bootloop - think some water got in it on a night out. Took it apart and stuck it in a bowl for a week, which fixed it and it's been working fine ever since except for the power button.
The button works if you press it repeatedly for like quarter of an hour, but I'm scared I'm wearing it down even more by doing that. Without that button, I can't switch my phone on or do the 3-finger salute.
Right now, if I want to reboot or go into recovery mode, I have to use the buttons in the notification bar. If it runs out of battery, when I plug it in I can still get into download mode by holding the menu button + volume down. To get it into normal mode I have to plug it into a computer with Heimdall installed and get it to print diagnostics 'print-pit), which makes the phone reboot out of download mode into a normal boot. It's not an ideal solution!
When my phone dies when I'm on the road, I'm phoneless for several days.
I'm pretty confident I've voided my warranty on this phone loong ago, plus trying to get a replacement is the easy way out
I've seen custom 'battery charge mode' firmware out there- you know the screen you get when the phone is switched off and you plug it into a charger? Somebody had written a custom one of those screens with extra useful information on it. I can't remember what it was called though! Google hasn't been useful at all in finding it, either. I've also noticed the charging screen looks different on my Slim Bean ROM compared to the stock one. So it must be something that's fairly easy to customize...
With that in mind, I might try hacking the charge screen to listen to the menu + volume control buttons and be able to boot the phone that way.
Either that or I make a USB jig that can send enough bits to the phone in download mode to get it to reboot...
But as I'm only good at breaking hardware, I think I'll stick to software hacking for now.
Does anyone know the name of that custom battery charging screen I mentioned? Maybe there's more than one? If I can get ahold of them I can hopefully find out how they work.
This is a pretty specific + techy question, so apologies mods if this is in the wrong section! I don't think I'm allowed to make threads in the Android dev. forums yet though- you need to have over a certain number of posts for that, right?
- Written painstakingly on my phone and oh God I wish I'd used Tapatalk. Why is the stock browser still so crap at user input?

Device stuck in download mode

My wife Nokia 7 Plus was found in download mode (white screen with Android One logo) and is stuck in this mode. I've never done any unlock bootloader or root or anything on it (thus I did on other phones so I'm not totally stranger to it) and I'm 100% sure she didn't tried anything strange either. The phone is completely stock and probably with the last update as it went back new from repair a few months ago (for screen brightness issue) and I did update everything possible before she used it again.
The phone start automatically and immediately I see the white screen with AndroidOne logo and after a few ms it refresh and it's the same screen with the back text "Download mode" at the top.
I've tried to force shutdown and reboot by long pressing power. I cannot keep it shutdown, it goes back to Download Mode screen.
I've tried to restart start with power + vol up or power + vol down, power + vol up + vol down. Same.
I've tried to let it die on battery, charge it, and here it's a black screen with the large battery logo and a white text at the top saying: Download mode. After a few minute I try to boot and it's back to the white screen.
What can I tried next before I send it back for repair and it will be probably wiped again...
Side story, I've almost force her to switch from iPhone to Android because of price of the devices, and so far she is not converted at all with all the trouble we got with this Nokia.
As last before send to service try wipe in recovery, if not boot to recovery via buttons, try if your download mode is recognised by fastboot and reboot to recovery using: fastboot reboot AND IMMEDIATELY HOLD BUTTONS POWER and VOLUP until show "green android icon with no command
k3dar7 said:
As last before send to service try wipe in recovery, if not boot to recovery via buttons, try if your download mode is recognised by fastboot and reboot to recovery using: fastboot reboot AND IMMEDIATELY HOLD BUTTONS POWER and VOLUP until show "green android icon with no command
Click to expand...
Click to collapse
Thanks for your help, unfortunately none of this work. I've tried adb device and nothing is seen, fastboot reboot neither. I'll send it to repair now.
Suffering the same problem.
Eluc said:
My wife Nokia 7 Plus was found in download mode (white screen with Android One logo) and is stuck in this mode. I've never done any unlock bootloader or root or anything on it (thus I did on other phones so I'm not totally stranger to it) and I'm 100% sure she didn't tried anything strange either. The phone is completely stock and probably with the last update as it went back new from repair a few months ago (for screen brightness issue) and I did update everything possible before she used it again.
The phone start automatically and immediately I see the white screen with AndroidOne logo and after a few ms it refresh and it's the same screen with the back text "Download mode" at the top.
I've tried to force shutdown and reboot by long pressing power. I cannot keep it shutdown, it goes back to Download Mode screen.
I've tried to restart start with power + vol up or power + vol down, power + vol up + vol down. Same.
I've tried to let it die on battery, charge it, and here it's a black screen with the large battery logo and a white text at the top saying: Download mode. After a few minute I try to boot and it's back to the white screen.
What can I tried next before I send it back for repair and it will be probably wiped again...
Side story, I've almost force her to switch from iPhone to Android because of price of the devices, and so far she is not converted at all with all the trouble we got with this Nokia.
Click to expand...
Click to collapse
I'm having the same problem. Exactly what you said. I didn't root my device or even attempt to do anything. I bought Nokia because they were purely stock and delivered some quality mobile phones. I've got only this phone as my daily driver. So tell me if you have got the issue fixed and how much did it cost and how long it took. It's been stuck with that 'android one' logo and a small message that reads 'Download mode' on top. I've tried everything. And what I'm worried about is, my phone's out of warranty and I'm a student. I hope you got it fixed for some reasonable cost. Please reply to me ASAP.
My wife's phone also has had this exact same problem.
I have tried all the tricks mentioned above including ADB mode (it could not find the phone).
The phone is supposed to be under warranty. So I took it back to the place of purchase.
However, the phone has a tiny crack in the corner of the screen which my wife and I were not aware of. So Nokia have indicated that unless I get the crack fixed, the warranty is voided and they will not fix the boot problem.
Because the broken crack is not covered by warranty, Nokia want $270 for a new screen before they will look at the software problem caused by the pie update.
I took it to a third party repair shop to see if there is a cheaper option. They cannot fix it either.
So the 5 month old Nokia phone is now useless.
But if anyone can comes across a solution for this, can they please post it here.
Thanks.
Same here. I told the guy on the phone about the crack. But he told me it should not be a problem. Now I got an email that I needed to pay 185 euro's to repair the screen.
Because of their FW-update, my phone became unuseful.
When I get it back (not repaired) I will try a OST on it.
I solved my issue via this procedure:
https://www.techmesto.com/possible-fix-nokia-smartphone-stuck-on-download-mode-after-ota-update/
I solved it via drivers: https://github.com/StollD/nokia-driver-installer/raw/master/out/Phone_Nokia_USB_Driver_v1.4.0.exe
WTF Finally I fix it!!!
Pibroens said:
I solved my issue via this procedure:
before, i can't got the phone connect to the pc.
So every way have failed...
After install the driver he supply,I still cant.. but!
I keep connect it,and press the power,volume up down all three button.
After it power on again pc find the phone. And i use the way he supply.
Click to expand...
Click to collapse
My Nokia 7 Plus got stuck in download mode after accidently pressing all buttons simu
Yes I know that sounds like a weird title and maybe you are wondering why did I do that? notice the word accidently.
I was just trying to fly my newly bought drone x pro for the first time and the controller has a little pull out extendable cradle to hold the phone in
if you want to view what the FPV camera is viewing while in flight and because of the bad design with all buttons on the same side of the Nokia 7 plus, unbeknownst to me all 3 buttons were being pressed at the same time and before I knew it my phone was shutting down and rebooting to this ridiculous download mode and the rest is history!
So I just thought I would mention this to anyone who happened to or happens to land in the same situation as me to be aware that you should probably put a little bit of sponge taped to the side of your phone over the volume buttons to possibly prevent it from being pressed simultaneously when flying your fpv drone.
If all else fails you could always connect the drone to your phone and then just put your phone in your pocket and fly blind by simply walking with the drone or rather running since they are pretty nippy. I am a bit bummed as this would have been a very convenient way of checking how full my guttering is of leaves without having to climb a ladder every time to check!?
Anyway I also used the fix here: https://www.techmesto.com/possible-fix-nokia-smartphone-stuck-on-download-mode-after-ota-update/
after downloading the nokia phone drivers from github.
If you are on windows 10 pro you may get a screen protector warning not to proceed further?
Ignore it and continue installing the drivers!
So far I got the Nokia Logo back and then it just hung there for several minutes without being recognised by the pc.
So I simply disconnected the phone from the pc and suddenly got the familiar nokia tone start up but then black screen again.
I realised it had been on the download mode so long it had completely drained the battery so now I am charging it.
Fingers crossed when I power up again I will at least have my phone back, sadly minus the data. (I will of course at least have all my google notes and contacts etc backed up to google servers at least they are useful for something!!)
I can't recall the last time I used it but I am pretty sure I had the SD card set as the main download so hopefully fingers crossed that data should have remained untouched, not sure how Android sets this up anymore?
Long time since gingerbread when you could still install and run apps as a completely separate partition.
All became a bit confusing after that so rooting became something I did hesitantly and as a definite last resort!
Anyway I am rambling on. If I find the fix works I will let you know.
Thanks for reading and thanks in advance if the fix works !!:good::good:
---------- Post added at 05:50 PM ---------- Previous post was at 05:23 PM ----------
leahcimewol said:
Yes I know that sounds like a weird title and maybe you are wondering why did I do that? notice the word accidently.
I was just trying to fly my newly bought drone x pro for the first time and the controller has a little pull out extendable cradle to hold the phone in
if you want to view what the FPV camera is viewing while in flight and because of the bad design with all buttons on the same side of the Nokia 7 plus, unbeknownst to me all 3 buttons were being pressed at the same time and before I knew it my phone was shutting down and rebooting to this ridiculous download mode and the rest is history!
So I just thought I would mention this to anyone who happened to or happens to land in the same situation as me to be aware that you should probably put a little bit of sponge taped to the side of your phone over the volume buttons to possibly prevent it from being pressed simultaneously when flying your fpv drone.
If all else fails you could always connect the drone to your phone and then just put your phone in your pocket and fly blind by simply walking with the drone or rather running since they are pretty nippy. I am a bit bummed as this would have been a very convenient way of checking how full my guttering is of leaves without having to climb a ladder every time to check!?
Anyway I also used the fix here: https://www.techmesto.com/possible-fix-nokia-smartphone-stuck-on-download-mode-after-ota-update/
after downloading the nokia phone drivers from github.
If you are on windows 10 pro you may get a screen protector warning not to proceed further?
Ignore it and continue installing the drivers!
So far I got the Nokia Logo back and then it just hung there for several minutes without being recognised by the pc.
So I simply disconnected the phone from the pc and suddenly got the familiar nokia tone start up but then black screen again.
I realised it had been on the download mode so long it had completely drained the battery so now I am charging it.
Fingers crossed when I power up again I will at least have my phone back, sadly minus the data. (I will of course at least have all my google notes and contacts etc backed up to google servers at least they are useful for something!!)
I can't recall the last time I used it but I am pretty sure I had the SD card set as the main download so hopefully fingers crossed that data should have remained untouched, not sure how Android sets this up anymore?
Long time since gingerbread when you could still install and run apps as a completely separate partition.
All became a bit confusing after that so rooting became something I did hesitantly and as a definite last resort!
Anyway I am rambling on. If I find the fix works I will let you know.
Thanks for reading and thanks in advance if the fix works !!:good::good:
Click to expand...
Click to collapse
So it worked, I have my phone back! Thank you so much for this solution!
Sadly my SD card was wiped too!!!!! super pissed off about this, many photos and notes and other files that I will never get back unless if I recall I may have made a manual backup of at least some of the earlier stuff I put on here a few months back on my pc?
Nokia will be hearing from me for sure!!!!! I want a 50% refund for messing with my life and my time. How can they send an update that essentially breaks a phone for a bit!???!!!!!!

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