[q] need help! Black screen on my verizon galaxy tab 7 - Galaxy Tab Q&A, Help & Troubleshooting

I tried a flash and think i messed my tab...now its just a black screen with a faint light in the background like its on but its no images.......my battery icon pops up then distorts away and thats it ....can get into download mode but not recovery.....tried holding all 3 buttons got this lil android dude in the corner with a sign sayin something about power reset but cant select nothing......help me please......

Put it in d/l mode and flash one of the stock roms with Heimdall.
D

i tried a stock flash with heimdall it flashed successfully but i still get the SAMSUNG logo that flashes and go away,buttons light up at the bottom,can go in download mode but not reboot mode,phone stay on with a faint light ,so i assume that its on somehow.....help

Did you follow this exactly?
http://forum.xda-developers.com/showthread.php?t=967175
One thing I missed here before was to wipe data and cache. Otherwise I go into boot loop.

how to get recovery mode
i cant wipe nothing because i cant get to recovery,just download mode

done it step by step
i followed evrything it flashed successfully but when it rebooted i turned off.and tried recovery but nothing......

chubbyflood said:
i followed evrything it flashed successfully but when it rebooted i turned off.and tried recovery but nothing......
Click to expand...
Click to collapse
Use UnBrickable Mod
http://forum.xda-developers.com/showthread.php?t=1341753

Although you get a black screen on boot, it might still be working....
Chubbyflood,
If you are in the same situation as I am then the tab is still working, you are just getting black screen on boot up. It played tricks on me for ages when I was first rooting by tablet; but it turned out it is just the boot up screen that isn't showing.
This is my situation:
-Press and hold Power button to turn on.
-I see the Galaxy Tab / Samsung initial boot image for about 1 second, and also hear the "boot chime"
-Then the screen goes completely blank (but you can tell it is still on with a little light showing.
-The four "hard button" lights will light up briefly a couple times
-Wait approximately 30 seconds to a minute (to be safe and give the tablet time to boot up - it is actually booting up)
-Tab the Power button once, to turn the tablet off (now the screen is clearly off)
-Tab the Power button again, and the tablet will be up and running as normal.
I am guessing the boot animation / images are failing in some way, but the tablet is booting up as normal.
I've just learned to live with it, because I haven't had a chance to figure out what's going on, but it honestly took me a good hour or so, and a few (unnecessary) flashes, before I realized the thing was up and running fine, it just need to have the button pressed on and off.
One final thing to mention; don't have the tablet plugged into anything. I seem to remember leaving it plugged into the PC didn't help (I think).
Hope that makes sense.
Cheers
Ed.

Has your situation been resolved?
I am in the same boat. What I have done to temporarily fix this was to Flash a ROM that uses Hemdall and it will boot as flukebu stated but only with the Galaxy Cubed ROM.
I cannot get the factory files to boot as you have stated.
I have continually tried to return to stock using the files provided on this forum and all "unbrick" posts.
While flashing the stock images everything completes and works well. The device reboots and the Samsung Splash screen appears. Once it appears it disappears and scrambles the screen. I believe it then goes into a bootloop which easily enough I could access factory recovery to correct but when I do attempt to access factory recovery the screen is as posted above (black but illuminated).
Once I flashed Galaxy Cubed ROM and it booted I hit the power button and the locksreen appeared. I can tell you I was excited but there are some issues with that ROM I have not tried to correct yet because my main goal is to return to stock.
Even with this ROM working correctly I have attempted to access CWM once installed to complete a Data Wipe and that does not show up either.
I would really like to find a solution to this I want to return to stock and not have this custom ROM running.

Juiced_RL said:
Has your situation been resolved?
I am in the same boat. What I have done to temporarily fix this was to Flash a ROM that uses Hemdall and it will boot as flukebu stated but only with the Galaxy Cubed ROM.
I cannot get the factory files to boot as you have stated.
I have continually tried to return to stock using the files provided on this forum and all "unbrick" posts.
While flashing the stock images everything completes and works well. The device reboots and the Samsung Splash screen appears. Once it appears it disappears and scrambles the screen. I believe it then goes into a bootloop which easily enough I could access factory recovery to correct but when I do attempt to access factory recovery the screen is as posted above (black but illuminated).
Once I flashed Galaxy Cubed ROM and it booted I hit the power button and the locksreen appeared. I can tell you I was excited but there are some issues with that ROM I have not tried to correct yet because my main goal is to return to stock.
Even with this ROM working correctly I have attempted to access CWM once installed to complete a Data Wipe and that does not show up either.
I would really like to find a solution to this I want to return to stock and not have this custom ROM running.
Click to expand...
Click to collapse
Have you found a resolution to this? Mine tab is doing the exact same thing as yours after the cubed rom.

Related

[Q] My SGS i9000 seems to be dead. Please help me :'/

Alright
First of all i would like to say that im a completly noob in android OS and that i possiblely have done something idiotic!
So.. was i getting annoyed by a slow phone (have voodoo lagfix installed and set to be ON. It seems to work like ****!)
I rebooted into recovery mode and entered advanced settings and i was curios about the partition setting.
Then i picked "partition" and set it be on "4096MB" and at last i picked it to be "ON"
I finished it and reboot the phone.
Now i only getting the startup logo and nothing happens.
I have the 3 button fix installed to be sure i can get into recovery mode again, and i have tested it and it WAS working.
Now it does not work with the Vol up+Home+Power button combination.
I can get 3 different screens like the startup logo, the download mode and the battery charging logo, which not showing any sign on charging.
instead it show the loading circle, frozen on the charging logo.
So what can i do ? - I really really hope there is a solution on this huge problem, because it is worthless now and i only got this phone less the a month.
Thank you.
You'll likely need to flash back to your stock firmware and start over (meaning you loose all data on your internal memory).
Do you know how to use odin? Do you know where to find your stock firmware? I'm on my phone right notes so can't provide any links but you can check the reference guide thread in the i9000 general forum (it's one of the stickied threads) on how to flash firmwares. You can find your stock firmware on http://samfirmware.com

Captivate gets stuck with black screen after booting. No response to anything

Phone: Samsung Captivate I-896, with AT&T stock Android 2.2 flashed to it. Rooted and unlocked.
Action: Deleted some *.odex files from Root/Data/App, following a guide to get around the "out of space" message while trying to install software. Cleared Delviks cache directory.
Problem: First restart after above actions(which didn't resolve the out of space message issue), phone shows start-up animations, gets stuck with black screen. Left like this overnight, nothing happens. Vibrates every 50 seconds or so. Respons to hardware Vol+ press with the home/back/menu backlight. Otherwise, no response to anything, black screen(backlight on). Does not receive phone calls. I do not know for sure if the action listed above is the one that caused this situation, but I assume so since it was the last action taken before the issue appeared.
Solutions attempted: Tried every possible permutation/combination of buttons/usb cable/etc/ restarts etc. listed here: http://forum.xda-developers.com/showthread.php?t=858765&page=1, except Jig. The phone would not go into recovery or DL mode.
Question.
Am I correct in assuming that forcing the phone into recovery mode and reflashing a new system(or reflashing the old one) is the only way to get the phone to work again?
There is no way to "soft-reset" the phone, with all settings reverted back to stock, if it does not boot up completely?
Titerepayaso said:
Phone: Samsung Captivate I-896, with AT&T stock Android 2.2 flashed to it. Rooted and unlocked.
Action: Deleted some *.odex files from Root/Data/App, following a guide to get around the "out of space" message while trying to install software. Cleared Delviks cache directory.
Problem: First restart after above actions(which didn't resolve the out of space message issue), phone shows start-up animations, gets stuck with black screen. Left like this overnight, nothing happens. Vibrates every 50 seconds or so. Respons to hardware Vol+ press with the home/back/menu backlight. Otherwise, no response to anything, black screen(backlight on). Does not receive phone calls. I do not know for sure if the action listed above is the one that caused this situation, but I assume so since it was the last action taken before the issue appeared.
Solutions attempted: Tried every possible permutation/combination of buttons/usb cable/etc/ restarts etc. listed here: http://forum.xda-developers.com/showthread.php?t=858765&page=1, except Jig. The phone would not go into recovery or DL mode.
Question.
Am I correct in assuming that forcing the phone into recovery mode and reflashing a new system(or reflashing the old one) is the only way to get the phone to work again?
There is no way to "soft-reset" the phone, with all settings reverted back to stock, if it does not boot up completely?
Click to expand...
Click to collapse
Sounds pretty accurate. You'll have to get a jig to get in download mode, flash stock Odin KK4 to fix w/e happened during your testing.
Thanks Bwolf. I just tried ADB console on a different computer and it connects to the device just fine in spite of black screen. I guess I had one thing right, USB DEBUGGING enabled before this whole deal.
Question: is there any way I can restore the phone using the console without wiping everything?
Titerepayaso said:
Thanks Bwolf. I just tried ADB console on a different computer and it connects to the device just fine in spite of black screen. I guess I had one thing right, USB DEBUGGING enabled before this whole deal.
Question: is there any way I can restore the phone using the console without wiping everything?
Click to expand...
Click to collapse
Make a backup with ADB.
Once that's done, push download mode with it and get Odin KK4 (without bootloaders). You'll have to start from there to fix w/e went wrong.
You don't have to wipe your sd doing so but you will lose your apps and such. If you backed up your phone with your Play Store account, it will re-download your apps as you're done booting up.
To get back up where you were, grab Corn Kernel, flash it with Odin 1.87 and then follow the full instructions of the ROM you wanna use.

[Q] Bootloop, can't get phone to stay in Download mode to reflash

Hi all
I reflashed an old i9000 with CM10.1 for my wife recently, and everything seemed to be working fine. Then it started behaving a bit funny and this week it started rebooting at random. I thought "no worries, I'll just do a fresh flash with stock GB".
However, before I could even give that a go the phone started acting even weirder. As soon as I put the battery in it powers on (without me even pushing the button) but it resets every time it hits the Samsung splash screen. Earlier today I could get it to go into CWM recovery and after clearing cache I actually got it to boot up. But by the time I had downloaded the stock GB files the phone was just constantly resetting at the Samsung logo and now I can't even get it to load CWM recovery using the 3-button method.
I can get it to enter Download mode, and it shows up in Odin just fine. But within 5 seconds it resets itself again so I can't actually perform a flash.
Any suggestions? Or is the phone just plain busted?
mrfurion said:
Hi all
I reflashed an old i9000 with CM10.1 for my wife recently, and everything seemed to be working fine. Then it started behaving a bit funny and this week it started rebooting at random. I thought "no worries, I'll just do a fresh flash with stock GB".
However, before I could even give that a go the phone started acting even weirder. As soon as I put the battery in it powers on (without me even pushing the button) but it resets every time it hits the Samsung splash screen. Earlier today I could get it to go into CWM recovery and after clearing cache I actually got it to boot up. But by the time I had downloaded the stock GB files the phone was just constantly resetting at the Samsung logo and now I can't even get it to load CWM recovery using the 3-button method.
I can get it to enter Download mode, and it shows up in Odin just fine. But within 5 seconds it resets itself again so I can't actually perform a flash.
Any suggestions? Or is the phone just plain busted?
Click to expand...
Click to collapse
I'm just going to answer my own question as I've solved the problem but it may benefit someone else to know how.
It got to the point where the phone wasn't even booting to the Samsung splash screen, but I could still get Download mode to show up for 5 seconds (not long enough to flash). Then in a moment of desperation I got the original Samsung microUSB cable and plugged that in, and booted into Download mode again. This time Download mode stuck! And I was able to flash a clean GB ROM which is now working fine.
So the take-out from my experience is this: sometimes you really do have to use the original Samsung USB cable.
Weird.
Thanks for reporting howto ...:good: good to know
mrfurion said:
I'm just going to answer my own question as I've solved the problem but it may benefit someone else to know how.
It got to the point where the phone wasn't even booting to the Samsung splash screen, but I could still get Download mode to show up for 5 seconds (not long enough to flash). Then in a moment of desperation I got the original Samsung microUSB cable and plugged that in, and booted into Download mode again. This time Download mode stuck! And I was able to flash a clean GB ROM which is now working fine.
So the take-out from my experience is this: sometimes you really do have to use the original Samsung USB cable.
Weird.
Click to expand...
Click to collapse
mrfurion said:
I'm just going to answer my own question as I've solved the problem but it may benefit someone else to know how.
It got to the point where the phone wasn't even booting to the Samsung splash screen, but I could still get Download mode to show up for 5 seconds (not long enough to flash). Then in a moment of desperation I got the original Samsung microUSB cable and plugged that in, and booted into Download mode again. This time Download mode stuck! And I was able to flash a clean GB ROM which is now working fine.
So the take-out from my experience is this: sometimes you really do have to use the original Samsung USB cable.
Weird.
Click to expand...
Click to collapse
I have a similar issue where I'm trying to flash my stock ROM on my Epic4gTouch. When it opens up the download mode error I start to flash and all seems to work before it reboots. Every 5 seconds. I tried the original cable and it did not help. Any ideas??
NerdsBestAdvice said:
I have a similar issue where I'm trying to flash my stock ROM on my Epic4gTouch. When it opens up the download mode error I start to flash and all seems to work before it reboots. Every 5 seconds. I tried the original cable and it did not help. Any ideas??
Click to expand...
Click to collapse
put the cable and press button power the phone go mode charging at this time make the phone in download mode
its ok for me:good:

URGENT - Need help with S5570

Hey guys
Samsung Galaxy Mini 5570 is a pretty old device now and definitely not worth to talk about, but It's for my aunt and she said i HAVE to fix it otherwise she will kick my butt.
This is the whole story:
Phone was running a very low android version (it was 2.1 or something) that i could barely install apps on it (Just installed WhatsApp), I decided to upgrade it to a higher version so i could install other applications like Line and Telegram for her, so basically i had to flash CWM file first because it was required, I flashed it using this link:
http://www.droidthunder.com/root-install-clockworkmod-cwm-recovery-samsung-galaxy-minipop-gt-s5570/
They said flash the cwm file and factory reset your phone but i flashed the cwm file and rebooted my phone without factory reset, everything was working fine :good: but i decided to follow the instruction so i rebooted into the recovery mode and factory reseted my phone (by my phone i mean her phone, but i'm gonna say my phone instead) and guess what, it never booted up again. stuck on Samsung logo.
But i could go into the download and recovery mode, so basically i followed this instruction:
http://www.droidthunder.com/update-samsung-galaxy-minipop-gt-s5570-android-4-2-1-cyanogenmod-10-1/
which is from the same guy, I flashed it using recovery mode and flashed gapps too, everything went normal without any errors. So i rebooted my phone and ............
a black screen poped up, I was really worried because i couldn't boot my phone, nor could i go into the recovery or download mode. I don't know if i could or not but the only thing I'm getting right now is a black screen or a backlight.
The only thing that seems to be working is when i hold Power+Volume UP button, my laptop can detect my phone (as Samsung CDMA Technologies) but can not flash anything using Odin, it stucks on "setup connection" message. Nothing else is working, I tried:
Home+power+volume down
Home+power+volume down+volume up
Power+volume down
Power+home
etc
I also tried a hundred different ways like completely uninstalling the drivers (with or without kies) pulling battery out, try those key combination while battery is out and reinsert battery while holding them but nothing is working.
I found this article yesterday which is for unbricking the hard bricked phones, but ADB can not detect my phone:
http://www.engineerthink.com/blog/2015/11/how-to-unbrick-hard-bricked-android-phone/
Please help me guys, And do not suggest me to take it in Customer Service because i would if i could.
Thanks in advance

Stuck on Welcome screen after factory reset

Hello there,
I've just found my old GT-S5300 from back in the day, and I tried turning it on to eventually use it again.
The issue is that when turning on, I get the usual "Welcome to GT-S5300" screen, and it tells me to "Touch the Android to begin"; when trying to do so, my phone doesn't let me go to the next screen to connect to Google and all the miscellaneous steps that come later. The touch screen does react, I can change the language/type a number in emergency call, the Android flashes when I touch it but it doesn't let me go to the next step.
I have tried factory resetting/wiping cache & data but nothing does it, I keep getting stuck on the same screen.
I even tried flashing a custom ROM and the stock ROM, but it seems my phone can't read the SD card I insert in it, I don't know why (32GB, works on other devices).
I have CWM Recovery installed so whenever I go to Recovery mode I have the CWM Recovery menu which appears.
Before burying it in my closet, my phone was indeed rooted.
Do you have any idea if there is a way to use this phone again? Thank you!

Categories

Resources