[Q] Black screen after Flash - Galaxy Tab Q&A, Help & Troubleshooting

So here is what I have. One of my friend's girl friend attempted to flash here T849 T-Mobile tablet. I do not have any info on if she attempted with Heimdal or Odin but the result was that it would not turn off. They brought it to me and I ran down the battery and recharched it, I was able to get it into download mode and have attempted several firmwares via Odin. All have passed and installed fine. When I turn on the tablet after the flashes it still has the black/blank screen. I hear the boot sound and the soft buttons at the bottom light up as normal. Its like the screen is dead. I do not believe it is though. Any suggestions?
I have attempted the power+touching screen trick to reset. It resets fine but still no response from the screen.

Like the other ten people posting about a black screen, you have a protected bootloader.

I have been part of this community for about 5 years, I read alot on here dont post alot. I have read all the threads pertaining to that problem but have not found a solution that worked to fix it, or else I would have not posted. So rather than post a smart ass response trying to expose me as a lazy xda newb asking a dumb question how about suggesting something that I have not tried.
As stated in the first post I have done complete stock rom reinstalls and can not see an image on the screen so I can not turn the apk to unlock the bootload. So still no love. Do you have a suggestion?
Also, I have nothing on the screen at all. most of the protected boot loader stuff I have read at least has the phone exclamation triangle computer graphic up. I have nothing.

I gave him the answer and he complains about it.

rangercaptain said:
Like the other ten people posting about a black screen, you have a protected bootloader.
Click to expand...
Click to collapse
Ok, you stated that other people have had a similar problem. The ways to avoid it are in several places in the galaxy tab forums. The ways to fix it I have yet to find. If you are as helpful as you are suggesting would you be as so kind as to give a tip on how it could be recovered? This is not even my tab. I would not have had this problem in the first place.

Related

Returning a bricked phone

So, I have successfully bricked my phone (not by choice). I am a long time WinMo user and I have never even come close to bricking a phone. Today was exactly one week from when I bought my first android phone and I bricked it.(not blaming android, I love android)
I have tried EVERYTHING, to no avail.
My phone is on the phone++!++computer screen.
So, first thing tomorrow morning, I am headed to the AT&T store for replacement (I will act dumb and get the phone).
My questions are -
1.Will my information (contacts,emails,etc.) on the phone be checked or in any way violated?
2.If they do find out that I had rooted the phone, after I have already walked out of the store, can they do anything about it?
1: Yes, the contacts and all other data on the phone itself is still there, and will all still be there when Samsung / AT&T *un-bricks* the phone.
2: They "could", but I am not knowledgable enough to know if they "will".
Or, save yourself the hassle, and the negative moral karma, and read here:
forum.xda-developers.com/showthread.php?t=731989
I've intentionally (with much failure), tried to "break" the phone so that I'd know how to fix it.
The above linked post will not only recover you from your "phone++!++computer" issue, but actually works so far as the dreaded "orange hex dump".
TehDave said:
1: Yes, the contacts and all other data on the phone itself is still there, and will all still be there when Samsung / AT&T *un-bricks* the phone.
2: They "could", but I am not knowledgable enough to know if they "will".
Or, save yourself the hassle, and the negative moral karma, and read here:
forum.xda-developers.com/showthread.php?t=731989
I've intentionally (with much failure), tried to "break" the phone so that I'd know how to fix it.
The above linked post will not only recover you from your "phone++!++computer" issue, but actually works so far as the dreaded "orange hex dump".
Click to expand...
Click to collapse
I have tried everything. I don't want to return this phone, but there is no option left.
None of the methods work and I am pretty experienced in this stuff. So, its not that I am messing up on the methods, its just that there was a batch of phones that had the key combos disabled.
Once you get the new phone there is nothing they can do because they have already agreed to replace it. All they do with it is send it off to be refurbished and it is completely wiped clean. I agree with the others that you have not tried *everything* because I have yet to read a post on any forum about a legitimate bricking of this phone.
ukulele_ninja said:
Once you get the new phone there is nothing they can do because they have already agreed to replace it. All they do with it is send it off to be refurbished and it is completely wiped clean. I agree with the others that you have not tried *everything* because I have yet to read a post on any forum about a legitimate bricking of this phone.
Click to expand...
Click to collapse
I can tell you that by flashing ONLY the pit file in odin another user and myself were able to succesfully make the phone unresponsive to all buttons, all methods and all pulls of the battery. it literally turned into a brick...then again i would call this an illegitimate method after realized how simple it is now. as long as i can get power to the phone thou i have to agree ive been able to save it every time now
ukulele_ninja said:
Once you get the new phone there is nothing they can do because they have already agreed to replace it. All they do with it is send it off to be refurbished and it is completely wiped clean. I agree with the others that you have not tried *everything* because I have yet to read a post on any forum about a legitimate bricking of this phone.
Click to expand...
Click to collapse
Seriously?
I was up for six hours last night trying to fix the damn thing. I don't want to replace the phone just because I want to beat the system. I have never ran into problems when I am modding. I always figure it out, but when the phone is absolutely unresponsive to all keys, what am I going to do?
Anyways, this thread can be closed now.
That same screen (http://img228.imageshack.us/img228/8420/hum1e0.jpg) happened to me yesterday. I thought I had tried all of the key combos but I missed one.
Try the following: (I know you said you tried all of the methods, but I thought it was worth mentioning just in case)
http://forum.xda-developers.com/showthread.php?t=731989 (Method 3)
I hope if you have not tried that yet, that it will work for you and save you the hassle of going to ATT.
Alec5216
seems pretty complicated to flash this phone. My last one-Nokia N900- is very easy to work with. It never get bricked.
alec5216 said:
That same screen (http://img228.imageshack.us/img228/8420/hum1e0.jpg) happened to me yesterday. I thought I had tried all of the key combos but I missed one.
Try the following: (I know you said you tried all of the methods, but I thought it was worth mentioning just in case)
http://forum.xda-developers.com/showthread.php?t=731989 (Method 3)
I hope if you have not tried that yet, that it will work for you and save you the hassle of going to ATT.
Alec5216
Click to expand...
Click to collapse
I tried that too, nothing. I got it exchanged. No hassle.
AT&T store rep just said the phone will be factory reset and there is nothing to it.
Anyway thanks for the help folks, really appreciate it.
Lets hope, I don't bust this one because the phone I just got is also impervious to key combos. I tried getting into recovery (just for the heck of it), it didnt work with the keys, had to do it with "adb reboot recovery".

[Q] Captivate Not Booting

Hello,
I have been keeping up on these forums for awhile now and have learned it should be hard to brick the Captivate, well that's what i fear may have happened.
I hope you guys have ideas on how i can fix this, What happened is.
I followed the info from this tread here, http://forum.xda-developers.com/showthread.php?t=734871
I was flashing the I9000 rom to my Captivate, i have done a few roms before with out problems.
This time i flashed the rom from the US section and flowed the instructions on the I9000 rom and Odin3 did a reset to reboot the phone and that's the last time i seen anything on the screen.
So i thought it would be best to let it keep going and didn't touch anything, then Odin3 gave me the Green light and said passed but the screen was still black.
So i unhooked Odin3 and pulled the battery thinking maybe i just needed to reboot it, but nothing came back.
I have tried to put it back into download mode but have not been able to, its acting kind of like its not turning on now.
I have tried holding down volume up and down and inserting the usb cable after i put the battery back in but that does not work any more.
I have read that the volume buttons on the I9000 roms are backwards so i thought maybe that might be the problem but am out of ideas.
I hope you guys have some ideas, ill own any one a beer for help on this.
SpinDry2010 said:
I have been keeping up on these forums for awhile now
Click to expand...
Click to collapse
Not long enough to know this belongs in Q&A, apparently.
Yea sorry about that i was reading in that section didn't notice until after i posted.
So is it possible that the bootloader got jacked since i see nothing on the screen?
I have to question why you used a thread that was posted in July...
If you can't get into Download mode using any of the button combos, you'll need to make a Jig.
If that doesn't work, you're **** out of luck.
Jig? 10 char
Well the date of the thread does not seem to matter, but a Jig would only seem to work if i had a boot screen and just had flashed a crippled loader.
But looking into this further i found that the fing bootloader was packaged into the I9000 rom, now since that seems to be what i flashed i can see why that killed it.
I wish i would have known this before hand but i guess lesson learned unless some one thinks that should not matter.
I will have to send it back but i should be ok on that with ATT, but i will stay away from letting the Slb.bin stay in the flash next time.

[Q] [Help!] AT&T Galaxy Tab Black Screen Of Death

I have the SGH-i987 AT&T Galaxy Tab and while flashing it I recently got the black line in the middle problem. Considering the searches turned up a fix for that I followed the steps I could find (and using Odin) and was able to get it booting into the setup, after which I couldn't go any further because any attempt to get keyboard input caused it to crash and reboot. I've searched high and low for a way to get this thing back to stock and can't find a single source here or anywhere else on the web that is helpful. I'm hoping that someone here can help get me pointed in the right direction, because right now I have a useless device that does nothing but show me the battery is charged.
So you know: I've searched XDA and found nothing that applies to the AT&T model of the Galaxy Tab. The Verizon fix doesn't work and the T-Mo thread contains a dead link to the file I'd need. I've tried searching SamFirmware and it's been a completely useless experience-- whether that's due to poor layout and navigation or my being unfamiliar with how they keep any actual ROMs is beyond me, because the site just takes me in circles. Searching here hasn't gotten me anywhere either, since most point me to the Verizon thread (though one person has tried suggesting the T-Mo fix, but again dead links). I'm getting really let down, since I love how incredibly helpful and informative XDA usually is and this is one of those cases where I'm just spinning in circles trying to find an answer because I know the discouragement toward just showing up and screaming "Help!"
But I got nothin. I've done the searches. I've read plenty. I've searched the web (including this). I've been to the site that lots have claimed would have the file I was looking for. Nada.
Found this by searching in XDA under your device model, hope it helps
UPDATE: As rangercaptain notes, there's a simple fix (which I failed to find the first round) for the white line black screen brick (or whatever you want to call it.) For anyone else, this may still hold value for how to convert your AT&T Tab to a P1000 Euro version with phone functionality or if you need to otherwise recover/restore a rooted AT&T Tab that's not booting.
I bricked my SGH-I987 (don't ask how). It was an already rooted and unlocked Galaxy Tab I bought crippled (of course) from AT&T sans contract. It was bricked. I couldn't get to the bootloader but I could hear the Samsung startup sound and then I got a blank screen with a faint line through it.
Anyhow, here's what I did to recover it.
Install USB drivers (if not already installed, else skip. The files I eventually found were called usb_drivers_GalaxyS_x64.zip but work perfectly on my Win 7 Ult x64 system.)
Turn off Tab
Hold the [Volume Down] + [Power On] buttons until the Digging Android screen appears
Connect your Tab
Run Odin (as an Administrator if you're on Vista/7). If the phone is connected, you'll see COM with a value and color highlight (not blank and white). (I used Odin3 v1.7.exe)
In Odin, load the following files (which I downloaded from samfirmware.com - the download will be password protected with the password "samfirmware.com"):
PIT => P1000XWJJ4\P1_add_hidden.pit
PDA => P1000XWJJ4\P1000XWJJ4-REV03-ALL-CL639474.tar.md5
PHONE => P1000XWJJ4\MODEM_P1000XXJID.tar.md5
CSC => P1000XWJJ4\GT-P1000-CSC-SERJJ2.tar.md5
Make sure "Re-Partition" is checked
If all's set, click Start and Odin will do it's thing. The Tab will reboot a few times and I was done and "unbricked".
I've already tried that. I've tried using instructions that used Odin. I've tried instructions that used Heimdall. I've even downloaded and used this jar executable called soft unbrick or something like that.
This is driving me crazy. Nothing seems to work. In fact, the last thing I tried (which were instructions similar to yours) got rid of the white line but have left me with a plain black screen with the buttons lit on the bottom and nothing else. The only thing I can still do is get it into download mode.
sorry to hear that if i come across anything will post,
basia314, thanks for the attempt to help, but as soon as I did a google search on it I found the XDA thread in question, and it's one I've already found before. If you read the rest of the thread in question (here) you'll see that it doesn't work.
Currently XDA contains no thread with info on how to fix my problem. I've searched. Google has provided no links either. The closest I came to finding a solution is the suggestion that I let some guys fix it for $50.
GreNME said:
I've already tried that. I've tried using instructions that used Odin. I've tried instructions that used Heimdall. I've even downloaded and used this jar executable called soft unbrick or something like that.
This is driving me crazy. Nothing seems to work. In fact, the last thing I tried (which were instructions similar to yours) got rid of the white line but have left me with a plain black screen with the buttons lit on the bottom and nothing else. The only thing I can still do is get it into download mode.
Click to expand...
Click to collapse
You say you have tried that but your first post states that you did not find anything .... which one is it?
There is a stock AT&T rom here on XDA, where did you get the one you tried?
Can you get into Recovery? In the thread listed above one of the posts states that there is no boot image and a black Recovery screen that is functional. Maybe what you flashed is giving you these same results, have you tried waiting a bit longer after a flash to see if it will actually do anything, the first boot after a flash takes a little longer. Are you checking the re-partition box during the flash, the file linked in the other thread should be flashed with the re-partition box UN-checked.
Just trying to brain storm here, hoping you fix it.
Well, it's a moot point now.
After following the instructions here to fix a "soft brick" I've now gone to hard brick. Can't power it up at all and can't get it to download mode.
When I said I couldn't find anything here I mean I couldn't find anything that helped. I can find tons of threads, usually pointing to either dead links or saying "go to samfirmware" (which I do, and still find no helpful info). I've tried close to a dozen different things to try to get my Tab back, all things either found here on XDA or linked to in threads here at XDA. Not a single one worked. And now I have a Tab that is as bricked as can be.
Of course, I've found threads here that claim a Tab can't be totally bricked as well. Maybe their Tab can't be, or maybe they're keen on tearing the thing apart to fix whatever breaks, but I don't have the tools here to do that. For me, my Tab is as useful as a brick right now, and has been for a month of trying to get it back to normal.
For reference:
[x] I am following instructions as completely as they're given
[x] I read as much as I could find reference to for things I wasn't sure of ahead of time.
[x] I googled.
[x] In Odin I checked the repartition box when instructed to do so, and made sure it was unchecked when instructed so.
[x] I made sure every time that the device was recognized in Odin in Heimdal
But...
[x] Yes I was foolish to have not made a backup.
This is killing me, and I don't have the $50 USD to get someone to fix my Tab for me as claimed in this thread. So I'm stuck with a Tab that's bricked.
Still nothing
Interestingly, I could get Odin to see my device, but trying that stock ROM still failed. I have no way of knowing if I had it successfully in download mode because the screen is doing nothing. Completely black, no lights.
Any thoughts?
GreNME said:
Interestingly, I could get Odin to see my device, but trying that stock ROM still failed. I have no way of knowing if I had it successfully in download mode because the screen is doing nothing. Completely black, no lights.
Any thoughts?
Click to expand...
Click to collapse
So it's not completely bricked?
Just a question, but from the thread started by k0sh about unbricking, did you try and just leave your tab plugged into a WALL charger for a few hours.
I would attempt at restocking with the OVERCOME stock safe, following their instructions to the tit.
---------- Post added at 04:50 PM ---------- Previous post was at 04:46 PM ----------
It does sound like you are experiencing the same black screen that I mentioned from the other post.
If you haven't done so yet, do try the re-stock instructions from the OVERCOME thread using their stock safe.
It spends most of its time connected to a wall charger.
I'm guessing it's not completely bricked, but it's non-functional to me since I can get zero screen feedback. This means I can't tell when it's in download mode or not.
What's "the OVERCOME stock safe", for reference? I ask because I've followed the instructions on several threads already, and the problem has gotten progressively worse. Also, I've followed instructions 'to the tit' as much as I'm capable so far, so it's not like I'd be doing any different with some new set of instructions. I don't like trying to take shortcuts, though I have to admit that I've had to try to research the meanings of other references made before (i.e. - I have no clue what "OVERCOME stock safe" is, though I assume it's a ROM that I'll have to follow three somewhat-related links to in order to get to the megaupload site to get it).
Addendum to above...
I didn't mean to come off as flippant, though I am a bit on the frustrated side considering every set of instructions I've been able to find to fix my Tab has resulted in it being worse than before the fix.
I'm trying to search for the instructions you reference, but not finding any detailed instructions anywhere. All I find is "flash OVERCOME using Odin" or something similar. As I said I have a completely black screen, so I have no indicator of whether I've got the thing in Download mode. Yes, I found out that it's not completely dead by using Odin to detect a COM connection, but that's not necessarily a guarantee that I have it in Download mode, is it?
GreNME said:
I didn't mean to come off as flippant, though I am a bit on the frustrated side considering every set of instructions I've been able to find to fix my Tab has resulted in it being worse than before the fix.
I'm trying to search for the instructions you reference, but not finding any detailed instructions anywhere. All I find is "flash OVERCOME using Odin" or something similar. As I said I have a completely black screen, so I have no indicator of whether I've got the thing in Download mode. Yes, I found out that it's not completely dead by using Odin to detect a COM connection, but that's not necessarily a guarantee that I have it in Download mode, is it?
Click to expand...
Click to collapse
alterbridge86 has a very well known thread in the Development section (Don't follow the links just yet) that has been around for a while, the OVERCOME team has provided us with many very stable and fast ROMS. To do a nice fresh install of their ROM they recommend doing a flash of a stock firmware to clear all the bits and bytes. If you follow the thread you will notice a detailed (and I mean detailed) instruction setup which is linked below.
Now, I'm not saying that you are not a smart person or anything so don't take any of the following as an insult, I just want to help so don't mind the simple instructions.
If I were you, after downloading all the files that you need for the stock safe stuff, to make sure you are properly in download mode when necessary do the following;
1) start the ODIN software on your computer.
2) connect your tab to the computer, check to see if odin connects
3) If odin connects than your tab is obviously ON, with the tab still connected to the computer press and hold the power button until the tab shuts off, at that point ODIN will disconnect.
4) press and hold the volume down button, then press the power button for a sec or two (the standard way to get into DL mode) and very shortly after you should get ODIN showing that it is connected again.
This will probably indicate that your tab has some functionality that you might be able to work with, but it wont be easy. After flashing anything you should wait a while as everything you flash will require a long first boot. Especially when you can't see any prompts. After flashing the kernel the install guide says you should hear a "sexy robot" voice (STEP 9). The flash will be quick but when the device reboots if you are not hearing the voice DON'T TOUCH ANYTHING, alot is happening in the background give it a good 5 minutes for it to finish (even 10 for safety), it should boot into the stock OS. If you don't see anything reboot your tab by holding the power button for 5-10 seconds to shut it off then turn it back on. BUT WHATEVER YOU DO, WAIT AT LEAST THOSE 5 MINUTES after flashing the kernel because it converts your system from RFS to ext4.
The OVERCOME rom thread is located here
The INSTALL GUIDE is located here
Good luck.
I'm about halfway through the process, and I've already got the screen working again.
I took the initiative to search around on the search string you gave me ("Overcome Stock Stable") and came across the same page you link to above. I was actually just about to post it here for future reference if anyone ever found themselves in my position again.
I'm trying to consider whether to leave it at stock or to flash the Overcome ROM on it. Your thoughts?
(and many, many, many thanks!)
GreNME said:
I'm about halfway through the process, and I've already got the screen working again.
I took the initiative to search around on the search string you gave me ("Overcome Stock Stable") and came across the same page you link to above. I was actually just about to post it here for future reference if anyone ever found themselves in my position again.
I'm trying to consider whether to leave it at stock or to flash the Overcome ROM on it. Your thoughts?
(and many, many, many thanks!)
Click to expand...
Click to collapse
I'm very glad to hear that you got it working, I've got two tabs and half bricked both of them at one point or another. And I find it's actually not that easy to completely screw these things up, they just get frustrating trying to fix.
Anyway, you should definitely try the OVERCOME series of ROMs, they are really good. Lot's of small things that make it worth while as well as big improvements over stock (speed, battery etc.. etc..) I'm running BOCA on mine, had the Honeycomb RC1 on it for a few weeks and now am waiting for these wonderful devs to cook up a usable ICS ROM>
Enjoy
Go to: teamovercome.net and read. Their install instructions are some of the best I've read. These guys are really good.
Sorry I didn't see the second page, that you had gotten the answer already

(fixed before I even finished typing post) G900A Stuck on AT&T Logo, please help

As I was typing this large portion of text below, my phone kinda just came back to life on its own.....that was really ****ing weird. Thank you all for being here for newbies, I searched for help and my phone kinda did it's own thing. first post fail. lol
"I had broken my S6 a few days ago and the screen is completely blank and no touch. Sad story because that was my 3rd one, I have had two replacements due to the battery and it being a crap phone.
Anyways, to the man subject, I had a S5 laying around that I accidentally dropped while I was factory restoring it and the battery came out. I fixed THAT boot loop two days ago and yesterday I somehow managed to do something that caused it to get stuck on the AT&T screen, again. I am a noob but I have tried several thing such as trying to update from SD, tried ODIN as suggested, but it won't detect my device whatsoever. I do not understand how this all is so confusing and nobody can seem to make one golden post to explain it all to people simply. "

Chromecast 3rd gen boot loop, any solutions?

Hello good people,
A month ago I bought a Chromecast 3rd gen on Ebay and it worked properly until two days ago. I saw a black screen and nothing happened. My phone was unable to detect it in Google Home app. I even tried to factory reset it a dozen times as well as power cycling it. Nothing helps. It turns on, I see a small "Chromecast..." at the bottom followed by a 4 colored dots and the Google Logo. After the logo it's just a blank screen. The led indicator is just pulsing white and then it reboots and starts the same drill again. This same situation actually happened already some 15 days ago but it started working again after just a couple of reboots, but this time it rejects any cooperation. I live in a small country and we don't have Google support here and Ebay seller won't respond to my inquiries so I would like to know if there's a way to fix it myself.
Is there a way to revive the Chromecast somehow? Can I connect it to PC via USB and try executing some shell commands or something? What about flashing a ROM?
Any suggestion will be very much appreciated.
Thanks guys,
i have EXACTLY the same problem with my 3rd gen.
However no bootloop. I have to factory reset each time for it to boot at all
Stefan.xda said:
i have EXACTLY the same problem with my 3rd gen.
However no bootloop. I have to factory reset each time for it to boot at all
Click to expand...
Click to collapse
Please do not necropost, start a new thread.
Arealhooman said:
Please do not necropost, start a new thread.
Click to expand...
Click to collapse
That's not encouraged at all. As part our Forum Rules it is stated to search before posting as your question may have been asked before. This avoids multiple threads talking about the same issue and usually ends up in more information on the topic.
As a matter of fact this is XDA's No.1 Rule.
garylawwd said:
That's not encouraged at all. As part our Forum Rules it is stated to search before posting as your question may have been asked before. This avoids multiple threads talking about the same issue and usually ends up in more information on the topic.
As a matter of fact this is XDA's No.1 Rule.
Click to expand...
Click to collapse
Ah, so you can necropost?
Stefan.xda said:
i have EXACTLY the same problem with my 3rd gen.
However no bootloop. I have to factory reset each time for it to boot at all
Click to expand...
Click to collapse
drimena said:
Hello good people,
A month ago I bought a Chromecast 3rd gen on Ebay and it worked properly until two days ago. I saw a black screen and nothing happened. My phone was unable to detect it in Google Home app. I even tried to factory reset it a dozen times as well as power cycling it. Nothing helps. It turns on, I see a small "Chromecast..." at the bottom followed by a 4 colored dots and the Google Logo. After the logo it's just a blank screen. The led indicator is just pulsing white and then it reboots and starts the same drill again. This same situation actually happened already some 15 days ago but it started working again after just a couple of reboots, but this time it rejects any cooperation. I live in a small country and we don't have Google support here and Ebay seller won't respond to my inquiries so I would like to know if there's a way to fix it myself.
Is there a way to revive the Chromecast somehow? Can I connect it to PC via USB and try executing some shell commands or something? What about flashing a ROM?
Any suggestion will be very much appreciated.
Thanks guys,
Click to expand...
Click to collapse
I can see this post, and the same thing happens to me, was there a solution?

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