Develop Bugs

[Q] Stuck power button?

So I'm not entirely sure what is wrong with my phone. I did some searching and I assume it's a stuck power button.
I bought a used logic board and swapped it with my hardbricked phone. I resurrected it and got to use it for about 2 weeks. Today out of the blue it dies out on me.
I was running AOKP build 4. Not too many problems besides the random reboots.
I took apart the phone and found out that the power button can push in but it doesn't click. It just gets pushed in and it relaxes itself back out.
When a battery is placed into it, SAMSUNG pops up then screen goes black and vibrates. If I plug it into the computer, it is not recognized, screen is black, starts to vibrate. I have a USBjig which I used on it. It put it into "factory mode" in which after like 3 seconds it flickers blue and then blackscreen and then vibrations.
Any idea on whether this is power button failure, or motherboard failure? I hope there is an easy fix to this. [aka swapping out power button etc]

[Q] One X crashed when charging and won't boot past htc screen or power down.

I went to plug in my one x to charge. The second that I plugged it in, the screen went black. The home and back keys were still lit up. I'm not sure if it auto restarted or I powered it down. After that it seemed like it was just going to restart, but it only got to the htc logo screen. The normal little orange bar showed loading. I think it only does that once normally, now it goes twice. When it finishes that animation, it just sits at the white htc screen.
I haven't modified anything recently. It has been running over a year with no changes. If I hold power down at the screen, the home keys flash every few seconds. After seven flashes, the phone powers down and immediately restarts. There is no way to power it down until it dies. I took it apart and removed the battery for a few minutes, that didn't help at all.
If I home power and volume down, the red charge light comes on a few seconds. It then seems to boot to a black screen. I can't see anything, but the home keys are lit up. If I hold power down a while, it goes back to booting to the white logo screen. I tried hooking it to my computer, but it isn't getting to a point where it is being recognized as being plugged in.
I assume the thing is beyond help, but any suggestions would be greatly appreciated.

thanksforthehelp said:
I went to plug in my one x to charge. The second that I plugged it in, the screen went black. The home and back keys were still lit up. I'm not sure if it auto restarted or I powered it down. After that it seemed like it was just going to restart, but it only got to the htc logo screen. The normal little orange bar showed loading. I think it only does that once normally, now it goes twice. When it finishes that animation, it just sits at the white htc screen.
I haven't modified anything recently. It has been running over a year with no changes. If I hold power down at the screen, the home keys flash every few seconds. After seven flashes, the phone powers down and immediately restarts. There is no way to power it down until it dies. I took it apart and removed the battery for a few minutes, that didn't help at all.
If I home power and volume down, the red charge light comes on a few seconds. It then seems to boot to a black screen. I can't see anything, but the home keys are lit up. If I hold power down a while, it goes back to booting to the white logo screen. I tried hooking it to my computer, but it isn't getting to a point where it is being recognized as being plugged in.
I assume the thing is beyond help, but any suggestions would be greatly appreciated.
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Click to collapse
"home power and volume down"?
If you mean HOLD power and volume down, trying to get to bootloader, and you cannot, you're not going to be able to do anything else with and to your phone I am afraid.
If you ARE holding down the Home key in the process, I am not sure if it makes a difference but don't.

thanks
Tigerlight said:
"home power and volume down"?
If you mean HOLD power and volume down, trying to get to bootloader, and you cannot, you're not going to be able to do anything else with and to your phone I am afraid.
If you ARE holding down the Home key in the process, I am not sure if it makes a difference but don't.
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Sorry, you are correct, it should have said hold. I tried to edit it, but it wouldn't let me edit so soon after posting as a new member. My phone has been through a lot. In the process of opening the case many times, the volume bar got damaged. I have to use something metal against volume down to manually trigger it. I'm fairly certain that it has tried to boot into the loader though. I guess the charger had a short and fried some memory..

Brick maybe?

Hello there, I was installing Recovery using this, http://forum.xda-developers.com/showthread.php?t=1746682, I only went up to the first part of unrooting the phone where it asks me to connect my and install te recovery, my phone after the root did not want to turn on. I tried using the Volume +/- along with the home key, nothing, it just vibrates and nothing. I tried pulling out the battery and the same thing happened, no matter what I did, it vibrates and won't turn on. Also when I hook it up to the charger and try turning on it vibrates and it keeps vibrating in loops, around 2-3 sec apart. What is wrong with my phone? Please don't tell me it's a brick, I just got it yesterday ;p

infernel250 said:
Hello there, I was installing Recovery using this, http://forum.xda-developers.com/showthread.php?t=1746682, I only went up to the first part of unrooting the phone where it asks me to connect my and install te recovery, my phone after the root did not want to turn on. I tried using the Volume +/- along with the home key, nothing, it just vibrates and nothing. I tried pulling out the battery and the same thing happened, no matter what I did, it vibrates and won't turn on. Also when I hook it up to the charger and try turning on it vibrates and it keeps vibrating in loops, around 2-3 sec apart. What is wrong with my phone? Please don't tell me it's a brick, I just got it yesterday ;p
Click to expand...
Click to collapse
I think this kit is honestly the easiest way to brick your phone. There are simply too many options, most of them have no real use for this phone, and the free version never gets updated. Honestly think it's a bad move for people who are new to the game.
To get in download mode:
Start with the phone off.
Press and hold the home button and volume down button.
Press the power button until the phone vibrates.
Release the power button.
To get in recovery mode.
Start with the phone off.
Press and hold the home button and volume up button.
Press the power button until the phone vibrates.
Release the power button.
Release the volume up and home button when the blue text appears in the top left corner of the screen.
If these won't work, you are bricked. Time for JTAG.

I agree 100%. That kit seemed pretty helpful for some when this was still pretty new, but recently it seems there are more reports of failures (or worse) than successes. When you get this fixed I suggest reading all the stickies and then take it from there.
Good luck
Sent from my SGH-T999L using XDA Premium 4 mobile app

Stuck at Black Sceen Crash

I just did a reboot of my tab and it got stuck at what I call "Black Sceen Crash".
Looks like being switched off - but isn't.
It does react on screen touches with a very brief vibration.
And it gets a litte warm.
Does not react on long pressing power button - so no reboot, no download mode, whatsoever.
Guess I have to let it run out of battery - which might take couple of days with screen off. We'll see.
Any idea what to do or what could have caused that behavior? Any similar experience?
Before trying to reboot there was no mobile connection, and I wanted to reboot to get it reconnected. Otherwise no problem.
I am running stock Samsung ROM, rooted, Skyhigh Kernel, OC/UV.

pibach said:
I just did a reboot of my tab and it got stuck at what I call "Black Sceen Crash".
Looks like being switched off - but isn't.
It does react on screen touches with a very brief vibration.
And it gets a litte warm.
Does not react on long pressing power button - so no reboot, no download mode, whatsoever.
Guess I have to let it run out of battery - which might take couple of days with screen off. We'll see.
Any idea what to do or what could have caused that behavior? Any similar experience?
Before trying to reboot there was no mobile connection, and I wanted to reboot to get it reconnected. Otherwise no problem.
I am running stock Samsung ROM, rooted, Skyhigh Kernel, OC/UV.
Click to expand...
Click to collapse
Yeah, I also discovered long pressing power button alone does not force-reset the device. I managed to reset it though by press-hold Power + Home + Either Vol Up/Down. Give that a try.
I can't remember whether it was the Vol Up or Down, try one then the other if it didn't work first time. Good luck.

After a while (30 min probably) it did not any more react on screen touches and was cold. Off maybe? Still no reaction on long pressed Power Button. Tried Volume Down+Home+Power Button - and fortunately it revived the tablet. Strange. Thanks for the hint!

I face the Black screen of death and the device (T805) was not responding to any reboot, recovery or download mode actions, sent it back to Samsung support and they claim an internal piece of HW need to be replaced, I refused that and asked for refund or new device... After a week I got a replacement device...

[Q] Sumsung Galaxy Tab S 10.5 (SM-T805) screen went black

My tablet Galaxy Tab S 10.5 (SM-T805) screen went black. I can’t see the screen.
Touch also does not seem to work. However it’s on. it is receiving calls and other messages. It is connected to WiFi.
Power button, volume button are working but I can’t power off the device cause I can’t see the screen options.
When I plug in to the charging cable it vibrates but does not show anything on screen.
It didn’t drop and hit by anything…i have been using it for 3 months now. it just happened by itself or may be by some update that I don’t know.
Please help how to bring it back to life

Are you able to get into download or recovery? I've never heard of something like this before. Maybe go ahead and let it die and then plug it back in and see if you can get into download mode by holding home+power+volume down then re flash your stock firmware or whatever you were using. Or do home+power+volume up to get into recovery. If you still have stock recovery then you can just do a factory reset right from that but if your using something TWRP then your still going to need to flash something after wiping your data.
Not sure how else you can get it to shut off since you can't see it. Even knowing where the power menu is once you press the button it would still be tough to hit the right thing. I'd say let it die. Maybe someone else can come shed some light. Of course it could be a hardware problem as well. I'm leaning toward software still though.
If your still completely stock I'd say let it die and get into stock recovery. Home+power+volume up and then wipe data and do a factory reset. Now if the screen stays black after its off and you've plugged in the charging cable then I'd imagine there's a more a serious problem going on.

Yes I am waiting for battery to be completely drained out. I will try your method once the battery is completely dead.
thanks

Your welcome let me know how it goes. Will do my best to help.

I don't have my tab with me right now but can't you hold power button for 10 sec to force a reboot? All Android device I ever had could do that.

Steve.99 said:
I don't have my tab with me right now but can't you hold power button for 10 sec to force a reboot? All Android device I ever had could do that.
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Doest work on t805 holding powerbutton, just hold the buttons for download mode and that will force it to reset and prompt you to press volume down to cancel volume up to continue...hold for 30 seconds, and if nothing appears let go and just press volume up once, still no joy then pop back cover off and unclip and reclip battery if your brave, thats what i did before i new about this quicker way.

How to run the battery completely down..? its still active and on... though not showing anything on screen.
Is there any quicker way... ?

To do a hard-reset on these Samsung devices, you need to hold Power + Home + Volume Down until it reboots. On every other device it's just Power. Some it's Power+Home. For some reason Samsung likes to be different.
Or if you have previously enabled USB Debugging, you can plug it in to your computer and do an ADB Reboot.

Power + volume down + volume up works for me as reset.

barth2 said:
Power + volume down + volume up works for me as reset.
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Click to collapse
Holy crap the dude is right....just tried that myself on t805, holding all 3 buttons at same time in top left corner power,vol dwn, vol, up forces a simple reset without dwnload mode rubbish.