Develop Bugs

[Q] Please Help Samsung Galaxy Tab 3 Flickering Screen!

hello i was wondering if there way anyone out there how could please help me with this screen flickering problem i have tried using clock work recovery i have used odin and reset my device a good 6 times today everything works fine its just the screen in flickering non stop no matter what i do it wont work but when i put it into download mode the screen is fine and on the start up when it says "Samsung Galaxy Tab 3" the screen is fine but it only is flickering when the device boots up can someone please help me i just received this as a gift for christmas and barely got any use out of it thanks you can contact me on my email it would be very appreciated :[email protected]

bigdaddywelker1 said:
hello i was wondering if there way anyone out there how could please help me with this screen flickering problem i have tried using clock work recovery i have used odin and reset my device a good 6 times today everything works fine its just the screen in flickering non stop no matter what i do it wont work but when i put it into download mode the screen is fine and on the start up when it says "Samsung Galaxy Tab 3" the screen is fine but it only is flickering when the device boots up can someone please help me i just received this as a gift for christmas and barely got any use out of it thanks you can contact me on my email it would be very appreciated :[email protected]
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Can make a picture, how it looks when its flickering and post this.
For me it looks like that is an bootloader Problem !!!
Have you testet when your go back to real stock, i mine flash stock Firmware with Odin , is that solved ????

Flickering screen
bierma32 said:
Can make a picture, how it looks when its flickering and post this.
For me it looks like that is an bootloader Problem !!!
Have you testet when your go back to real stock, i mine flash stock Firmware with Odin , is that solved ????
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How can I go back to real stock and un root this device I have the same problem. I only got it today and I am desperate

bsquirrell said:
How can I go back to real stock and un root this device I have the same problem. I only got it today and I am desperate
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Take a look to the thread " unbrick and restore " from Tomsgt here you find a guide

galaxy tab 3 7
I have finally managed to fix the flickering screen by re installing a new firmware. Odin 3.07 wouldnt work, but odin 3.185 did for some reason!!! Now is there a root for this that won't put me in this position again. I am sure this has been asked and answered somewhere else, but I can't find it.
The previous root I did installed an old firmware, which caused the problem,
The auto display feature on this tablet still leaves the screen too dark,so I have had to disable this feature. Anny ideas anyone, thank in advance for any help

bsquirrell said:
I have finally managed to fix the flickering screen by re installing a new firmware. Odin 3.07 wouldnt work, but odin 3.185 did for some reason!!! Now is there a root for this that won't put me in this position again. I am sure this has been asked and answered somewhere else, but I can't find it.
The previous root I did installed an old firmware, which caused the problem,
The auto display feature on this tablet still leaves the screen too dark,so I have had to disable this feature. Anny ideas anyone, thank in advance for any help
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Go to dev Thread and usw the thread Cwm for sm-t210/r
http://forum.xda-developers.com/showthread.php?t=2433853

I had the same issue when i was stuck on boot loop, install a different recovery, i used CWM, and then install a different rom. Allot of the stuff here works across different platforms and it works fine but sometimes it cause the flicker.... good luck

I think you went into the developer options and clicked on the show screen updates. It will flicker all the time until you disselect it.
Sent from my SM-T210 using xda app-developers app

G3 D855 not working after factory reset because of 'Unfortuanately' popup

I factory reset my LG G3 D855 for no reason other than wanting to start fresh again. I have since encountered an issue I have never come across before:
Upon each boot, I am brought to the LG Set up wizard. No issues there, but without fail, after no more than 5 seconds I get the popup 'Unfortuantely, the process com.android.phone has stopped'. Pressing 'okay', all that happens is the same popup is shown again immediately.
I have tried resetting it to factory settings via the volume and power keys multiple times but theres nothing changes. I've even tried resetting without the micro sd card and sim card ejected, but still no difference.
PurpleDrake wont recognize my phone is connected, nor PC Suite. My computer just doesn't know it's connected.
I have tried everything I know of; if it were as simple as flashing the software via the recovery screen I could do that no worries, but if you're at all familiar with the G3, the bootloader is locked.
I've tried racing through the setup after removing the battery and rebooting (because with the popup, literally nothing is is interactable), but I can't get very far in 5 seconds.
Please help me guys, I don;t have a backup phone and I need this bad.
side note..the last software i remeber installing was 10vi or something....and I don't know if it would be relevant at all, but a few weeks ago, I converted the phone app from system to user so I would be able to customize the LED alerts.
Any sort of help would be appreciated.

Flash the firmware via LGFlashtTool and you should be good to go
Sent from my LG-D855 using Tapatalk

yousifamir said:
Flash the firmware via LGFlashtTool and you should be good to go
Sent from my LG-D855 using Tapatalk
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awesome, thanks for pointing me in the right direction.

E980 will not connect to LG Flash Tool

I am new to this whole process. Last week I spent every night trying different roms on my E980 (AT&T) but none would work so I flashed back to stock 4.1.2 and rooted. Friday I made the mistake of doing an OTA upgrade to 4.4.2 but the phone continued to work fine until that night I tried to do a google search and the phone freaked out. Started vibrating and closing out screens like I was hitting the back button and then finally just went into a boot loop. Some times its the LG logo repeatedly and others it is the AT&T logo with the little jingle that plays. So I put the phone into download mode and tried to restore everything back to 4.1.2 using the flash tool but the flash tool will not pick up the phone being in d/l mode. Windows chimes like it should when its plugged in and the drivers are installed but the program will not start the software install to the phone.
What should I do?

Noggles10 said:
I am new to this whole process. Last week I spent every night trying different roms on my E980 (AT&T) but none would work so I flashed back to stock 4.1.2 and rooted. Friday I made the mistake of doing an OTA upgrade to 4.4.2 but the phone continued to work fine until that night I tried to do a google search and the phone freaked out. Started vibrating and closing out screens like I was hitting the back button and then finally just went into a boot loop. Some times its the LG logo repeatedly and others it is the AT&T logo with the little jingle that plays. So I put the phone into download mode and tried to restore everything back to 4.1.2 using the flash tool but the flash tool will not pick up the phone being in d/l mode. Windows chimes like it should when its plugged in and the drivers are installed but the program will not start the software install to the phone.
What should I do?
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Someone please help me!

Noggles10 said:
Someone please help me!
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Well I stumbled upon the solution by accident. Somehow the connection mode got changed to UART instead of USB. Once it was changed back the phone synced up perfectly and restored. The first time it errored out though for some reason but I retried and it worked fine.

Please excuse my ignorance but where do you change the mode to UART in the phone? I don't seem to find that option. Thanks in advance!
Sent from my iPhone using Tapatalk

Nttra said:
Please excuse my ignorance but where do you change the mode to UART in the phone? I don't seem to find that option. Thanks in advance!
Sent from my iPhone using Tapatalk
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I don't know a whole lot but I do not believe there's a setting for to change that in the phone. That's why my phone wouldn't connect when the flash tool was set to sync via that method.

Bricked my phone after updating

Hi there. I tried to update my Elephone P8000 but to no avail – my phone stuck in a boot loop and I couldn’t use it at all.
I noticed it had happened to more people online so I tried one of their fixes of flashing the stock ROM...which didn’t work.
I have downloaded all drivers, followed every tutorial step by step but nothing! And now instead of being stuck in a boot loop my phone won’t turn on at all.
My PC still recognises the phone which I guess is good, except I still cannot flash the stock ROM.
It gets past the red bar and the purple bar but then gets stuck at Download Flash 0%
Is there anything else I could possibly try as I’m all out of ideas and I really love this phone!
Thank you!

Try again using this http://forum.xda-developers.com/elephone-p8000/help/how-to-guideline-install-mtk-drivers-t3334698

It is just the same exact thing that happened to me. I would thank any help.

oldbeardedman said:
It is just the same exact thing that happened to me. I would thank any help.
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Your going to need to flash a Rom to fix it. Follow steps in the guide I linked above to flash.
Updates will brick these phones if they are rooted.

thundermuppet said:
Your going to need to flash a Rom to fix it. Follow steps in the guide I linked above to flash.
Updates will brick these phones if they are rooted.
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Yep I have tried that several times before but my laptop won't even restart in advanced mode. I know it is weird but...
I even tried to make the whole process in a virtual so without results.

What windows are you running?

thundermuppet said:
What windows are you running?
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Windows 10. When I try to reboot into advanced mode it shuts down normally but then it freezes in a black screen doing nothing.

oldbeardedman said:
Windows 10. When I try to reboot into advanced mode it shuts down normally but then it freezes in a black screen doing nothing.
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Try pressing the 7 key and see if anything happens. If it's still the same search Google for problem, I'm sure someone had had same problem as well.
Don't worry about phone, I've bricked many and have always fixed them.

thundermuppet said:
Try pressing the 7 key and see if anything happens. If it's still the same search Google for problem, I'm sure someone had had same problem as well.
Don't worry about phone, I've bricked many and have always fixed them.
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7 or F7? Yes I have searched and tried to disable the driver signature policy through command too as I have seen in other pages but it did not work. I think I will have to borrow a friend's PC.
Thank you anyway. I am still worried tough haha

oldbeardedman said:
7 or F7? Yes I have searched and tried to disable the driver signature policy through command too as I have seen in other pages but it did not work. I think I will have to borrow a friend's PC.
Thank you anyway. I am still worried tough haha
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The number 7 key. If you're using keypad and numlock is off you will be pressing curser left. If you're using a laptop with a monitor attached to it the monitor will be black and the display will be on the laptop screen.
Other methods, try here http://pcsupport.about.com/od/windows-8/a/open-advanced-startup-options-windows-8.htm

Posting in case someone has the same problems as me.
I finally could do it with flashtool and some generic drivers I found here:
http://www.mediafire.com/download/5ff6s5bk1couva9/Compelte+USB+Drivers+PDanet+Adb+Installer.rar
These drivers are signed, so I could install them without issues.
I have installed a custom recovery and a custom rom (nexus).
However, thank you very much, thundermuppet.

Sm-T800 stuck at Samsung logo start screen

I'll preface this by saying I have searched the forums here and after reading a few threads about similar problems to mine, I haven't been able to find a solution. So, I'm making a new thread in the hopes you fine individuals will be able to help me troubleshoot what's going on.
The problem:
I was running CM 12 on my T800 for a while, but after some bugs and random reboot issues, I decided to give the new IronRom a shot. I went ahead and flashed it through TWRP and everything went swimmingly. I was able to set up the tablet and use it for a while. However, two days ago when my wife was using the tablet, it randomly restarted while she was using it and then froze at the Samsung startup screen. It would show the screen, then blink to black like the tablet had restarted, show the screen and repeat this about 4 or 5 times before freezing at the Samsung start screen.
What I have tried doing:
First thing I tried was home+power+volume up to get into TWRP and do a wipe and start over. But I cannot get into recovery. Once the tablet is frozen the only way to get it to restart is with a hard reset power+volume down, nothing done after that seems to make any difference.
Second, I realized I could still get into download mode, so using ODIN I tried going back to stock. Flashed the stock rom for my region but when Odin is done with the initial flash, it reboots the tablet and everything is the same. Frozen at the Samsung screen.
I've tried flash TWRP again, but once the tablet reboots after download mode, it just freezes at the Samsung screen.
Any suggestions at this point would be welcome.

last time i had this same trouble but on my T705. I had to wipe everything including the internal storage. only then the device boot properly.

edan1979 said:
last time i had this same trouble but on my T705. I had to wipe everything including the internal storage. only then the device boot properly.
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I would love to be able to, but as I said in the original post, I can't get the tablet to enter recovery, so I can't wipe it. The only thing I can get it to do is boot into download mode.

Hi, sorry to be that guy who bumps threads, but I'm still sitting here with a tablet I can't use and no more ideas on what I can do to fix it. I'd really appreciate any ideas at this point. Thanks again!

Drschplatt said:
Hi, sorry to be that guy who bumps threads, but I'm still sitting here with a tablet I can't use and no more ideas on what I can do to fix it. I'd really appreciate any ideas at this point. Thanks again!
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I had similar experience, and even started downloading official samsung image, with odin etc. However it looks like I was able to enter recovery if rebooting using the following sequence:
- power-vol_down-home combination until the screen goes black
- moving finger from volume-down to volume-up
-> waiting a few seconds (less than 10) until recovery screen shows up.
Then I just reinstalled the good old cm 12.1 (instead of the failing lineageos 14.1), and then all happy again.

Drschplatt said:
Hi, sorry to be that guy who bumps threads, but I'm still sitting here with a tablet I can't use and no more ideas on what I can do to fix it. I'd really appreciate any ideas at this point. Thanks again!
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Hallo.
Try this https://forum.xda-developers.com/ga...k-disaster-t2838473/post54618555#post54618555.
It work for me, when i have similar problem.

Carlosk1966 said:
Hallo.
Try this https://forum.xda-developers.com/ga...k-disaster-t2838473/post54618555#post54618555.
It work for me, when i have similar problem.
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Thanks for the link. I tried it but never could get the tablet turned off to see the battery icon. When I used the method in the link it just returned to the Samsung Galaxy Tab S startup screen

Drschplatt said:
Thanks for the link. I tried it but never could get the tablet turned off to see the battery icon. When I used the method in the link it just returned to the Samsung Galaxy Tab S startup screen
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Well that is not good. Like i said, it allways work for me, when i get bootloop.