[Q] GTablet crashed, no longer works after NVFlash. - G Tablet Q&A, Help & Troubleshooting

Ok, I've tried everything I've read here so far, but I think my issue is slightly different than everything else I've read. So, here goes:
I had 1.2 BoS alpha 6 on my gTablet, everything was working great. Yesterday, I installed NetFlix on the tablet, and everything was fine. A little while later I was reading a PDF file (Gears of War - Aspho Fields... good book ). I got up to go to the bathroom and when I did the tablet ended up rotating into portrait mode for a sec. It hasn't worked since.
When it went into portait mode, everything but the back/home/clock area went black, and I couldn't go back to the home screen or anything. So I turned it off. Reboot, stuck at the Viewsonic birds screen. Greaaaaat.
Today, I decided that I might as well NVFlash since it's not doing much more than operating as a doorstop at this point. So I downloaded everything and did the NVFlash, and it worked fine. Everything installed, tablet rebooted, started up with the T'n'T loading screen... and sat there, looping for about 15 minutes. I tapped the power button... and now it only boots to APX mode. Double greaaaaat.
So I figured that I'd NVFlash again and maybe that would work. There's just one problem. Now the computer sees the tablet as "Unknown Device". It won't NVFlash anymore, says there's no USB device connected. But the computer sees a device and recognizes when I plug it in, so I know the tablet is actually turned on and in APX mode.
My guess is, I'll have to wait for the battery to drain and try again once it's completely dead...? I don't feel like cracking the case if I don't have to. And if there's too much work involved with trying to revive this thing, I'm gonna go pick up a Transformer. (I just bought one for my wife, she brought it home a couple hours before my tablet died. I'm jealous, and pissed. lol.)
I guess my biggest question is, why would the tablet suddenly stop being recognized by my laptop (which is Win7,btw)? It worked fine about 20 minutes before the second NVFlash attempt.

I have got a similar issue. I can either go to CWM or APX or watch it loop on the TnT loading screen. If anyone knows how to fix this I would greatly appreciate it.
I think my problem got started because I tried to nvflash with an sd card inside though.
Sorry for taking up space and your thread. If you are unable to go to CWM I have no idea what to do but if you can then you can data wipe/factory reset and it should boot up.

koreanschoolkid said:
I have got a similar issue. I can either go to CWM or APX or watch it loop on the TnT loading screen. If anyone knows how to fix this I would greatly appreciate it.
I think my problem got started because I tried to nvflash with an sd card inside though.
Sorry for taking up space and your thread. If you are unable to go to CWM I have no idea what to do but if you can then you can data wipe/factory reset and it should boot up.
Click to expand...
Click to collapse
I haven't been able to get the tablet to reboot since it went into APX mode, it won't shut off again and I can't reflash it to kickstart the reboot. (I'm also not real sure the flash I used had CWM on it.) I'm draining the battery now... and probably picking up a Transformer on my way home from work tomorrow... I was going to use this for school, I ebook'd all my textbooks this semester. So I'll probably pick up that and then try to get this back up and running again and eBay it.
Oh... I guess I should mention that I had an SD card in mine, too... I didn't see anywhere in the instructions that I should have removed it. But even so, I'm still stuck and can't reflash to try it without the SD in it.

Good news... after draining the tablet's battery, I was able to boot into recovery mode and install the BoS alpha 6 update.zip I had saved on the tablet, which got me booting again. Now I'm reflashing to Flashback Beta 7.1

Related

What happened? I would REALLY appreciate any help.

Hey guys,
I'll try to keep this short. I have an HD2 that I've been running SD card Android builds with no problem. I didn't want to do a NAND flash just yet. I installed the EBL2.1a in Winmo and rebooted and all was well. I shut down, went back into Winmo, had it select the Gingerbread build I had on the card, to which it got to the Android logo, then just kept flashing the logo. I pulled the battery and now it wont turn back on! Just a black screen, just like its dead. I tried the reset button and tried a hard reset and still nothing. Any ideas?? I didnt think an SD card build could do any damage to the phone, so I'm really confused. ANY help/insight you could provide would be MUCH appreciated.
DISREGARD. I pulled the SIM and the SD card and now Its working again. WHEW! Weird.
Ugh. Scratch that. EBL just tried to load that gingerbread build again, and the same thing happened. I was trying to get it to select the proper Android build and somehow it selected the Gingerbread build not in the "Android" folder. Now its completely dead. Again. I removed the SD card and SIM and tried again with no luck. Im thinking it was just a time thing and I need to leave it for a while with the battery out. This is so weird tho. Hopefully it'll power back up again and I can just remove the EBL.
EDIT: Waited about 5 minutes and It's back to normal again. It's quite weird how an SD ROM can hard lock a phone like that. I'm not a developer, so I'm sure there's something I don't know, though.
EDIT AGAIN. Found the problem. It turns out the battery contacts are getting weak and bend a little if the battery is not inserted perfectly.
I know I'm basically talking to myself in this thread, but hopefully this little diatribe will help others who might run into the same issue.

GHarmony ICS 1.6 - stuck @ birds?

I've been running the GHarmony ICS ROMs for a while, and have really been loving the 1.5 release. Super excited to try 1.6, but no matter what I do, it won't boot past the birds. (Trust me, I mean NO MATTER WHAT - I've tried everything anyone suggested anywhere that I could find, I asked anyone that would give me any suggestions. Nothing has worked.)
I'm not sure if it's some abnormality in my hardware or the changes in the ROM - I was hoping maybe to get some advice or at least commiseration here...
Is anyone else using this ROM?
If so, is anyone else having this problem?
if so if so, has anyone figured out a workaround or a fix?
I could switch to a different ROM (most others have worked with no problem) but in my experience, this is the best ICS I've used on this tablet...
I'm in the exact same boat.
I had been using flashback for the past few months and loving it. However over the last few weeks, it had gotten to a point where I felt like playing around with what is out there and decided to move to g-harmony.
After running the nvflash file and installing (which work perfectly) the most i can get is a black screen after the birds that just sits there and does nothing.
I just reinstalled flashback with no problem at all on the gtablet.
Really looking forward to using g-harmony but need help.
Can you get any version of GHarmony to work? What process did you follow to nvflash and do your install?
I was able to get earlier versions (pre-1.6) by following the raywaldo instructions first (the "nvflash for dummies" ones, but they were recommended to move to an ICS ROM), and they went on perfectly, no problems.
clymerrm said:
I'm in the exact same boat.
I had been using flashback for the past few months and loving it. However over the last few weeks, it had gotten to a point where I felt like playing around with what is out there and decided to move to g-harmony.
After running the nvflash file and installing (which work perfectly) the most i can get is a black screen after the birds that just sits there and does nothing.
I just reinstalled flashback with no problem at all on the gtablet.
Really looking forward to using g-harmony but need help.
Click to expand...
Click to collapse
much enencgres
I have not. However, point me to 1.5 and i'll give it a shot.
I did just give 120 a shot however and got excited because the birds were flashing more than before, but same results, a black screen going nowhere.
Yeah, I'd like to know if your problem is with all of t hem, or just w/ the latest (like mine).
I can't include an external link here, so check your PM - I'll send it there.
clymerrm said:
I have not. However, point me to 1.5 and i'll give it a shot.
I did just give 120 a shot however and got excited because the birds were flashing more than before, but same results, a black screen going nowhere.
Click to expand...
Click to collapse
Sorry, looks like mine is a different issue. Just puts me in an endless reboot to the birds stage. I tried nvflashing the 250 mb again. I even tried the 300mb on raywaldo and still, the same result.
And even though i didnt want to go to the drh rom, i gave it a shot to see what would happen there. Same result, just a loop through the birds and then the black screen making it look like something is loading but nothing is happening.
Went back and installed flashback again, no problems at all. Booted up perfectly the first time.
So GHarmony 1.5 just gives you the endless reboot to the birds? If so, that's what I get. The birds, then a quick flash, then back to the birds.
The 300MB version didn't help me either. Neither did any of the diagnostic techniques anyone suggested anywhere.
I did get stuck in a loop last night where I went from the birds to a black screen, after I nvflashed something. I was able to get out of it after nvflashing something different. It looked just like APX mode, except it didn't respond to commands.
clymerrm said:
Sorry, looks like mine is a different issue. Just puts me in an endless reboot to the birds stage. I tried nvflashing the 250 mb again. I even tried the 300mb on raywaldo and still, the same result.
And even though i didnt want to go to the drh rom, i gave it a shot to see what would happen there. Same result, just a loop through the birds and then the black screen making it look like something is loading but nothing is happening.
Went back and installed flashback again, no problems at all. Booted up perfectly the first time.
Click to expand...
Click to collapse
Exactly what i'm getting.
dmahon said:
So GHarmony 1.5 just gives you the endless reboot to the birds? If so, that's what I get. The birds, then a quick flash, then back to the birds.
The 300MB version didn't help me either. Neither did any of the diagnostic techniques anyone suggested anywhere.
I did get stuck in a loop last night where I went from the birds to a black screen, after I nvflashed something. I was able to get out of it after nvflashing something different. It looked just like APX mode, except it didn't respond to commands.
Click to expand...
Click to collapse
So i had gotten excited. After getting flashback running, i decided to download all of the g-harmony files again and give it another go. Figured something happened with the download of the files.
Run nvflash again, wipe cache, reboot into tnt, worked great.
Fresh download of 1.6, installed no problems at all.
Power off.
Birds show up for about 2-3 seconds and then just a black screen. Not apx mode since you can tell the screen is still on, but just blackness on the screen.
So similar, but not quite the same as what I'm getting. I don't know what the problem is, It's weirdest that there's no hint of a problem anywhere. All the installs go fine, the tablet will boot before I install the ROM or after I restore it back, and I even checked all my partitions and made sure they're the same size, with no bad blocks (that I could find) or anything else that might gum things up.
I haven't seen anything else in the topic about the ROM itself that suggests others are having issues, so I don't really know what a next step should be.
clymerrm said:
So i had gotten excited. After getting flashback running, i decided to download all of the g-harmony files again and give it another go. Figured something happened with the download of the files.
Run nvflash again, wipe cache, reboot into tnt, worked great.
Fresh download of 1.6, installed no problems at all.
Power off.
Birds show up for about 2-3 seconds and then just a black screen. Not apx mode since you can tell the screen is still on, but just blackness on the screen.
Click to expand...
Click to collapse

[Q] Sony Tablets are Starting to Fail on me!?!

So this is quite irritating at the moment. Me and my mom both have a Sony Tablet S (SGPT111US/S). Now both mine and my mothers are causing difficulties right now, and both have very different problems. So I'll start off with my moms tablet since it may just need to be waited out for the problem to go away.
Mom's Tablet:
This was just a couple days ago, My mom says her tablet froze at 10:03 (like it really matters what the time it froze at is) on the cradle. She had to press the reset button to turn it off, however the unit will not Turn on or even go to the Android Recovery Menu to preform a factory reset. As of right now it is connected by the plug rather than being on the cradle. I'm hoping that this issue can fix itself since others have had this experience before and got theirs working just by letting it sit a couple days on the charger, however if you have any ideas on getting it working sooner that would greatly be appreciated.
My Tablet:
I honestly don't know what has happened. Until a couple days ago I turned on my tablet and after it boot up problems emerged out of random the second the lock screen appears every single app crashes, not once but continuously. Even the home screen will crash and continuously reload itself, so getting to any app won't be possible and even at that when i do get to an app it's already crashed and i'm back at the home screen. To help make matters worse, the tablet won't remove Apps permanently, i can uninstall them (oddly enough while every app crashes without them even starting the settings doesn't crash.) however if i reboot the tablet everything returns like nothing ever left. I have even went to the Android Recovery Menu to try to factory reset the device, but the factory resets doesn't even reset even though the ARM says it did. So i'm stuck with this crashing loop and a Non-Factory Resetable tablet. I have tried to see if maybe rooting the tablet could help, but not even the Tablet will load itself completely when connected to my Computer so rooting is out of the question as well. Also the Bluetooth and Wifi won't turn off as well.
In the end,
Both Tablets have the current update (4.0.3 RA5) and both are Not Rooted. They are out of warranty so last thing i want to do is call Sony to repair my tablets for a fee. I would also like to note my tablet has been sent in once for repairs because it was stuck looping the boot screen, so my tablet has had trouble in the past, but since then until now i have never had any problems. I will admit, i do sometimes install cracked apps, the app i installed just a day before all this happened was Minecraft 0.7.2.......I have installed it on my EVO and Walkman Z and no problems have occurred and they still have the game.
Please any help for these tablets will be Greatly appreciated. Please Will you help Me?
jobobishere said:
So this is quite irritating at the moment. Me and my mom both have a Sony Tablet S (SGPT111US/S). Now both mine and my mothers are causing difficulties right now, and both have very different problems. So I'll start off with my moms tablet since it may just need to be waited out for the problem to go away.
Mom's Tablet:
This was just a couple days ago, My mom says her tablet froze at 10:03 (like it really matters what the time it froze at is) on the cradle. She had to press the reset button to turn it off, however the unit will not Turn on or even go to the Android Recovery Menu to preform a factory reset. As of right now it is connected by the plug rather than being on the cradle. I'm hoping that this issue can fix itself since others have had this experience before and got theirs working just by letting it sit a couple days on the charger, however if you have any ideas on getting it working sooner that would greatly be appreciated.
My Tablet:
I honestly don't know what has happened. Until a couple days ago I turned on my tablet and after it boot up problems emerged out of random the second the lock screen appears every single app crashes, not once but continuously. Even the home screen will crash and continuously reload itself, so getting to any app won't be possible and even at that when i do get to an app it's already crashed and i'm back at the home screen. To help make matters worse, the tablet won't remove Apps permanently, i can uninstall them (oddly enough while every app crashes without them even starting the settings doesn't crash.) however if i reboot the tablet everything returns like nothing ever left. I have even went to the Android Recovery Menu to try to factory reset the device, but the factory resets doesn't even reset even though the ARM says it did. So i'm stuck with this crashing loop and a Non-Factory Resetable tablet. I have tried to see if maybe rooting the tablet could help, but not even the Tablet will load itself completely when connected to my Computer so rooting is out of the question as well. Also the Bluetooth and Wifi won't turn off as well.
In the end,
Both Tablets have the current update (4.0.3 RA5) and both are Not Rooted. They are out of warranty so last thing i want to do is call Sony to repair my tablets for a fee. I would also like to note my tablet has been sent in once for repairs because it was stuck looping the boot screen, so my tablet has had trouble in the past, but since then until now i have never had any problems. I will admit, i do sometimes install cracked apps, the app i installed just a day before all this happened was Minecraft 0.7.2.......I have installed it on my EVO and Walkman Z and no problems have occurred and they still have the game.
Please any help for these tablets will be Greatly appreciated. Please Will you help Me?
Click to expand...
Click to collapse
How's your mum's tablet doing right now? If the issue still persists after what you've tried, I'm thinking maybe just let it run out of battery, charge it back up and see what happens. Also, have you tried using the pccompanion software to redownload and reinstall a fresh firmware back onto your tab? It's a more 'thorough' reset method as opposed to a factory reset through the tab settings.

Weird situation, phone mysteriously not starting, any insights?

Hi there! Long time reader, first time poster (TL;DR below...but it should be a quick read anyways )
So I've been using this S2 of mine for almost 4 years now, haven't had any trouble (other than a couple of battery swaps). For the past 6 months or so I've been using CM 12.1 nightlies without issue.
The events:
- The other day, my phone froze (I wasn't using it when it froze, it was when I went to use it that I noticed...it was on the wifi selection screen if it matters), so I held the power button to shut it down, and when I powered it back up, it just froze at the Samsung boot screen (with the usual yellow triangle).
- At this point, I was able to reboot into download mode at will, but any attempt to boot to recovery just led to the freeze at the Samsung boot screen. Also, the phone would automatically reboot itself at this point any time I inserted the battery (I was of course putting the battery in and out trying everything I could).
- I would have reflashed from Odin at this point, but since I was away for a few days I just kept trying to reboot into recovery, to no avail. On one of these attempts (power+vol up+ home) it showed the Samsung boot screen, and then immediately shut down and I haven't been able to get anything onto the screen since
I'm now home, and I can't seem to fix it. If I plug the phone into a charger, the top half or so of the phone gets warm, and it also seems to get warm if it isn't plugged in and I try to power it up. I was thinking maybe the phone was maybe doing the same thing as before and just not showing anything on screen, but I blindly do the steps to get it into download mode, and Odin doesn't recognize anything (drivers are definitely installed). I have also tried other batteries, no luck.
Any ideas of what I might try? I'm willing to do anything. For the record nothing happened to the phone at all when this all happened (no dropping or water damage or anything, just my attempts at booting into recovery). Maybe I should try a jig? I'm also open to opening the phone if there's something I can do, though I don't have experience with this.
Thanks so much for any suggestions!
TL;DR: phone froze (running CM 12.1 nightly), held power to shut it down, and then consistently froze at the boot screen on any attempts to power it on. After a few attempts at booting into recovery (the phone would only freeze or enter download mode) the screen suddenly shut off and I haven't seen anything on it since no matter what I try. I can't think of anything that happened to the phone I'm open to any and all suggestions! Thanks
One sentence amongst your description stands out like a 'sore thumb'.....
That the device heats up towards the top when you attempt to charge it.......
Until you try a jig I can't be certain, but that heating coupled with a dead/unresponsive screen along with a lack of recovery and/or download modes (download mode is 'hardwired' into the device, and NOTHING should be able to corrupt it) are the primary symptoms of a failed motherboard.......
That is my opinion based on my experience in these forums and personal experience with a (now dead) S2 (one of two that I own).........
Get the jig just to be sure, but I'd be surprised if it had any effect.....sorry to be typing something you don't want to read, but you said it yourself, the device is 4 years old....it's been in service roughly twice as long as most smartphones, and they don't last forever....
http://i.imgur.com/rVnFwJM.jpg
Thanks dude! It's nice to have some idea of what happened. I am indeed very happy my phone has lasted me this long, and my friend is gonna give me an extra S2 she has anyways it seems so it's all good!
I'll try the jig and update here with the result (I ordered one online...will arrive in January sometime)...just in case anyone is curious.
smacsmac said:
Thanks dude! It's nice to have some idea of what happened. I am indeed very happy my phone has lasted me this long, and my friend is gonna give me an extra S2 she has anyways it seems so it's all good!
I'll try the jig and update here with the result (I ordered one online...will arrive in January sometime)...just in case anyone is curious.
Click to expand...
Click to collapse
Yeah....be good to know the results.....If only to confirm or refute what I've suggested.....
http://i.imgur.com/rVnFwJM.jpg
keithross39 said:
Yeah....be good to know the results.....If only to confirm or refute what I've suggested.....
http://i.imgur.com/rVnFwJM.jpg
Click to expand...
Click to collapse
Sorry it took me a while...the jig was in the post haha. It didn't do anything at all (no response when I plugged it in) so I think it's safe to say you were bang-on and the motherboard failed! Happily using a new S2 (with CM13.0 now ) on behalf of my friend though.
Thanks again.
Sounds familiar. Happened to me also due to failed cyanogenmod update (CM13). Only thing that works is download mode, so i'm not given up hope yet.
I can't post a link but google ''Apply Update Failure samsung galaxy s II'' there's a thread about this on the cyanogenmod forum.
Elaias said:
Sounds familiar. Happened to me also due to failed cyanogenmod update (CM13). Only thing that works is download mode, so i'm not given up hope yet.
I can't post a link but google ''Apply Update Failure samsung galaxy s II'' there's a thread about this on the cyanogenmod forum.
Click to expand...
Click to collapse
oh mine was just straight up dead...no download mode or anything visible on the screen (and nothing to do with CM13 either)
hope you get yours sorted out! have you tried reflashing anything via Odin while in download mode?
Its hard to tell you and hard to accept. You can almost give up the hope, your NAND Chip is just what we call " wear-out ". In the most cases no write is possible anymore, the funny part is -> sometimes read is still fine. If that is the case: The system is booting and working, but saving just nothing. The NAND is frozen to its state before it broke.
At our local store, customers come to us with issues like " Factory Reset impossible ", "Can't delete my Files" "Can't create files". All these Devices have inaccessible NAND's and inaccessible Recovery. Only Bootloader is working, but as the NAND is broken, flashing doesn't change anything.
smacsmac said:
oh mine was just straight up dead...no download mode or anything visible on the screen (and nothing to do with CM13 either)
hope you get yours sorted out! have you tried reflashing anything via Odin while in download mode?
Click to expand...
Click to collapse
yeah, flashing with odin did the trick. now running cm13 and everything works fine. sorry to hear that your phone turned to brick.

Reinstall firmware on Verizon Ellipsis 7 tablet

I have a Verizon Ellipsis 7 tablet that is stuck in a boot loop. When I turn it on, I get the "Powered by Android" screen and then the screen goes blank but lit, and never gets to the next stage. I tried entering Factory Mode and cleared the eMMC, but after doing that I can't even get back into Factory Mode. (I spoke to a Verizon rep and he said clearing the eMMC likely cleared too much, and it now lacks the proper kernels to start up.)
I believe this whole fiasco may have started when I used the wrong charger after having not turned on the tablet for months. I stupidly ignored the warning, and the problems started soon after (although it worked perfectly normally for about a day first). I now have the correct charger and have fully charged the device overnight, but nothing's changed.
I think the only hope at this point is to reinstall the OS (the Verizon guy said "flash" it, but I'm not 100% sure what this involves). Can anyone help me do this, simply and safely? I'd like the original OS if possible, but otherwise I'm open to open-source alternatives. Thanks!
i just had this happen too -- and now i am stuck too;
however mine gets stuck at the verizon loading logo
Dude I'm right there with you. I'm almost at the point of installing Ubuntu touch lol I'm still not done with this fight though shoot I'll learn a whole new skill if need be damn things made me forfeit more than enough times.
hola busco firmware qmv7a

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