[Q] Flashing G-Tablet back to stock, ( or anything else for that matter) - G Tablet General

I just joined the site, so it is NOT allowing me to post in any area that is directly related to what I need answered. I flashed to various versions of TnT, managed to brick my tab, and ran the NvFlash to get it back to stock, at which point it boots up, but I get a Force Close on pretty much everything, including "system" so I cannot even do a wipe or anything else. The problem is, once I reboot, it will not come back up, and just gives me a black screen, but if I hold down volume and power it will allow me to get back to the screen where I can run nvflash again, but for some reason, I cannot manage to get it to reboot in order to install any other rom. any assistance is greatly appreciated.

chanse said:
I just joined the site, so it is NOT allowing me to post in any area that is directly related to what I need answered. I flashed to various versions of TnT, managed to brick my tab, and ran the NvFlash to get it back to stock, at which point it boots up, but I get a Force Close on pretty much everything, including "system" so I cannot even do a wipe or anything else. The problem is, once I reboot, it will not come back up, and just gives me a black screen, but if I hold down volume and power it will allow me to get back to the screen where I can run nvflash again, but for some reason, I cannot manage to get it to reboot in order to install any other rom. any assistance is greatly appreciated.
Click to expand...
Click to collapse
You already have nvflash experience, so I would suggest this:
http://forum.xda-developers.com/showthread.php?t=974422
You erase, then do the regular nvflash again. If you need clockworkmod, here's a neat trick -- in the 1105 bekit image, take the bekit .8 recovery.img (which is clockworkmod) and then copy it over to your 1105 foider. Then, rename part9.img to something else and then recovery.img to part9.img. Then re-flash.
What that does is add cwm from the start. So after the nvflash, you can reboot right into recovery and wipe your user data.

Thanks for this, man (and the nine billion other things you and the collective devs do). I borked the tablet by attempting to do something that VeganGinger experimental didn't like. Not sure what, but even after an NVflash, it wasn't happy booting. Doing this enabled me to get clockwork on and wipe data, which in turn let me get it booting. Now to go back to TNTLite and stop playing with things labeled experimental.

Related

[Q] Thanks! (and HELP!)

Just joined to say thanks to Roebeet and everyone who is active in this forum. Because of the obvious potential of the gtablet being explored here, and discussed on phandroid.com I decided to take the plunge and purchased one tonight. I might have passed this tab by, and waited months for something else...
--and here's where I cry for help!
I carefully followed a series of step-by-step instructions I found thru google, to install the latest tnt lite found here on XDA. Everything seemed to work without a hitch, and was prouder than a pappa to have completed my first root and mod ,ever!
BUT right after I DL'ed and installed the flash 10.1 apk things went south. The browser constantly crashed to the home screen, and the market and email apps were crashing also. I rebooted and now I am greeted by the tnt setup screen that is covered in an endless wave of crash warning dialogs! I can't tap them away fast enough to see the desktop.
I've tried to do a recover, but I can't get thru the setup (that keeps crashing to the first screen also) to use the USB to mount the internal mem to my Mac.
I am insanely happy about the potential of this hardware, but I've painted myself into a corner. ANY help would be greatly appreciated.
And yes, I do look very handsome in my profile pic.
From bad to WORSE!
I discovered the dcom222 thread that describes my problem and details a solution. I followed it to the letter, changing the command and using my microSD as a secondary boot to reinstall the vanilla tnt ROM.
But then it just stuck on the tnt logo, faded in and out 3-4 times, and went dark! The device won't turn on or off (had a full charge when I pulled it from the wall socket a few moments ago)
Please tell me I haven't bricked this thing!
still no luck...
I was able to power the unit back up, but I've tried to recover and flash all three setup files I have (vanilla tnt, ota update tnt and tnt lite 2) but nothing works!
All of them create a loop of some sort, whether it's the viewsonic screen, gtablet screen loop, or the tnt logo screen blinking on and off, NOTHING boots to the desktop.
Going to bed before I drive my self insane. Hopefully someone in the know will reply by the time I check this at work.
thanks in advance
You have not bricked it, don't worry. This device is very hard to truly brick. If all else fails there is nvflash or the apx mode fallback. But I don't think you need that if you are still able to boot to clockwork recovery.
In clockwork go to advanced - mounts and try mounting and unmounting your partitions. I suspect your user partition may be screwed. This seems to happen fairly frequently especially the first time you flash a ROM. It happenend on my first flash and not again since. Clockwork lets you repartition though. Search the forum for partition fix, its not too big a deal.
If that fails try roebeet's thread on nvflash recovery for TNT lite. If that fails, search for APX mode.
As far as I know there are zero bricks from ROM flashing so far.
Sent from my SMB-A1002-3G using Tapatalk
Life in LA said:
Just joined to say thanks to Roebeet and everyone who is active in this forum. Because of the obvious potential of the gtablet being explored here, and discussed on phandroid.com I decided to take the plunge and purchased one tonight. I might have passed this tab by, and waited months for something else...
--and here's where I cry for help!
I carefully followed a series of step-by-step instructions I found thru google, to install the latest tnt lite found here on XDA. Everything seemed to work without a hitch, and was prouder than a pappa to have completed my first root and mod ,ever!
BUT right after I DL'ed and installed the flash 10.1 apk things went south. The browser constantly crashed to the home screen, and the market and email apps were crashing also. I rebooted and now I am greeted by the tnt setup screen that is covered in an endless wave of crash warning dialogs! I can't tap them away fast enough to see the desktop.
I've tried to do a recover, but I can't get thru the setup (that keeps crashing to the first screen also) to use the USB to mount the internal mem to my Mac.
I am insanely happy about the potential of this hardware, but I've painted myself into a corner. ANY help would be greatly appreciated.
And yes, I do look very handsome in my profile pic.
Click to expand...
Click to collapse
Scroll down to post number #869 http://forum.xda-developers.com/showthread.php?t=842004&page=87
feeling better
Thanks for the assurances that I didn't wreck the device, and pointing me to some solutions. I have a few questions:
what is clockwork mod? If I am able to recovery boot from my micro SD card, do I already have it? (I downloaded a bunch of recovery images to start, per instructions)
If it's something I still need to download, is it a PC application? How am I supposed to change settings in it (manage partitions, etc) if I can't get the tablet to boot?
-- stuck at work and dying to get home to fix this thing...
Ok, more detailed instructions:
If you press and hold down Volume + when you are pressing the Power button to boot up, and keep holding the Volume + key until you see a message that says "Detect a Recovery Key Pressed", that should get you to a text menu from which you can navigate using the volume +/- keys and the Home soft button to flash ZIP files and do other things. That menu is ClockworkMod Recovery. Since you remember installing a recovery.img, it sounds like you probably (hopefully) have ClockworkMod Recovery on there.
If you get to ClockwordMod Recovery, you can go down to the Mounts and Storage option, then you will find the "Mount USB storage" option at the end of that list. That lets you plug in and mount your internal memory area as a standard USB drive to your Windows or Mac computer to copy over new ZIP files and the like to your G Tablet.
You can also check that partitions are all mounting and unmounting successfully in that menu. If you go instead into the Advanced menu, you will see Partition SD Card, which I believe is what you might need to do at this point.
If booting with the Volume + button held down doesn't get you anywhere and you see nothing about Recovery Key Detected and don't see any text menu, then you don't seem to have a working recovery. At that point you'll have to do what phfaty suggested, read the post he referenced, and follow the link therein to the tegratab forum post to get the NVidia Tegra SDK installed on your Windows desktop and use the NVFlash tool and APK mode (where you hold the Volume - key down while booting instead of the Volume + key) to reflash your tablet.
still not working...
The good news:
I do have clockwork mod installed. Must have been in 1 of those zips or rars I ran in the very beginning.
The bad news:
it's still caught in a boot loop. I've mounted it as an external drive 3 times now from clockwork, and tried all 3 versions of the operating system (vanilla, vanilla with the ota and tntlite 2) and NOTHING makes a difference.
Life in LA said:
The good news:
I do have clockwork mod installed. Must have been in 1 of those zips or rars I ran in the very beginning.
The bad news:
it's still caught in a boot loop. I've mounted it as an external drive 3 times now from clockwork, and tried all 3 versions of the operating system (vanilla, vanilla with the ota and tntlite 2) and NOTHING makes a difference.
Click to expand...
Click to collapse
1)Boot into clockwork.
2)Navigate to Advanced menu
3)Choose partition sdcard
4)Choose data partition desired size(1024=1GB)
5)Choose 0GB for the next selection(swap not used)
6)Do a factory reset from main menu
7)Reboot
8)If that doesn't work, then reinstall ROM, then reboot
UPDATE
partitioning the drive and wiping the user data did the trick. I'm up and running again. thanks to all who chimed in to help.

Black Screen After bad TNT 5.0 Lite Install

I stupidly installed TNT Lite 5.0 before reading the instructions. My gtab locked at white screen. I panicked. Did a full restore using Nvflash. That put g-tab to 2638. But when I shut off power I can get nothing but a black screen when powering on. The only way to get the tablet to function again is to flash another full restore, and then same problem occurs when I shut down. I cant update because the tablet screen goes black when attempting reboot. I've been reading posts here in the developers forum all day and I haven't come closer to solving my problem, so I need help from someone smarter please.
jesusgi said:
I stupidly installed TNT Lite 5.0 before reading the instructions. My gtab locked at white screen. I panicked. Did a full restore using Nvflash. That put g-tab to 2638. But when I shut off power I can get nothing but a black screen when powering on. The only way to get the tablet to function again is to flash another full restore, and then same problem occurs when I shut down. I cant update because the tablet screen goes black when attempting reboot. I've been reading posts here in the developers forum all day and I haven't come closer to solving my problem, so I need help from someone smarter please.
Click to expand...
Click to collapse
nvflash to the version included in the tntlite post there is an apk file link there
Do you mean 3588 stock?
jesusgi said:
Do you mean 3588 stock?
Click to expand...
Click to collapse
yes check the first post in the lite thread. It is linked as APK 3588
I downloaded it, but I am not sure how to use it with nvflash as compared to the restore which was relatively simple using the included bat file. Am I missing something or am I just a hopeless Noob?
jesusgi said:
I stupidly installed TNT Lite 5.0 before reading the instructions. My gtab locked at white screen. I panicked. Did a full restore using Nvflash. That put g-tab to 2638. But when I shut off power I can get nothing but a black screen when powering on. The only way to get the tablet to function again is to flash another full restore, and then same problem occurs when I shut down. I cant update because the tablet screen goes black when attempting reboot. I've been reading posts here in the developers forum all day and I haven't come closer to solving my problem, so I need help from someone smarter please.
Click to expand...
Click to collapse
Hmm?.. Seems there are a lot of users trying to prove the GTAB is in fact Brickable..*lol*
It is NOT!
Go here:
http://forum.xda-developers.com/showthread.php?t=861950
Yes I feel dumb about it. I did read that thread before posting. I did the restore. I can get the gtab to boot up and it is usable.......until I power down, then the only way to use it again is to reflash the restore again. I mean its usable. Not really bricked, really, but I am frustrated because it seems like I am missing the solution.
I used the nvflash from http://forum.xda-developers.com/showthread.php?t=861950 to prep my gtab for 5.0. Once it flashed and booted to the OS, I had it join wireless, then it prompted to start the update to 3588 immediately. Have you tried this?
Yes it downloads the update but to complete the update, it must reboot. When it goes to reboot then the screen goes black and then nothing The only way I can get it to work again is to nvflash it to the complete restore I have been going round in circles with it for hours and hours
jesusgi said:
Yes it downloads the update but to complete the update, it must reboot. When it goes to reboot then the screen goes black and then nothing The only way I can get it to work again is to nvflash it to the complete restore I have been going round in circles with it for hours and hours
Click to expand...
Click to collapse
Been there.......months later the tablet is still there. I can not power it off or reboot it. I bought another tablet and use "the unbootable" one at home where it sits in a dock until needed.
I have tried every nvflash recommendation out there...
There are about 4 or 5 tablets like this. Most have either been returned/swapped out or set aside and no longer used (from my reading of others with the same problem).
I can get it to boot by formatting partition 2 so if it ever goes off or I need to "update" it I turn it off.....connect it and nvflash it...holding volume + if I need to get to recovery. If not...once nvflash sends the bootloader over and formats partition 2, the device boots.
Something on mine is preventing the bootloader from booting.....the nvflash sending it over executes it and the tablet runs......
redundant - double posted
jesusgi said:
Yes it downloads the update but to complete the update, it must reboot. When it goes to reboot then the screen goes black and then nothing The only way I can get it to work again is to nvflash it to the complete restore I have been going round in circles with it for hours and hours
Click to expand...
Click to collapse
I got the same problem. I can only power my gtab by doing nvflash, and if i reboot, it only goes into apx mode.
Ouch. That has stopped me in my tracks. It's really bad news.
"Something on mine is preventing the bootloader from booting.....the nvflash sending it over executes it and the tablet runs......"
That's my problem exactly. My wife is going to be very upset. I thought I could keep her gtab updated without bricking it. Oh jeez that's exactly what I've done..........
Suggestion? don't do the update after you nvflash.. let the device boot up normally and put a different ROM zip file on the SD via USB.
Calkulins new ROM is based in TnT is super smooth.
http://forum.xda-developers.com/showthread.php?t=985705
From there try to reboot into recovery mode with an app like quick boot AniReboot and flash the different rom.
It may be the ROM you're trying to flash is corrupt.
I did the same too. . An didn't read the fine print. After getting the info
on how to fix my bricked gtab. Also, I had to do some Googling on apx
USB drivers for windows 7.
Long story short.. had a few pints. .. got it back to stock and installed tntl 5
The next day.. I'm using it now and I'm happy. Time for another pint.
I thought I bricked my GTab, after several hours of tweaking I was
able to flash it and run TnT Lite 5.0 now. Here is the procedure I did:
a. nvflash to stock rom. download the usb driver for windows 7 here and install (link from post by syntrix) : http://developer.download.nvidia.com/tegra/files/os/tegra_ventana_froyo_20110207.msi
b. grab the stock rom from the post by roebeet, choose "nvflash_windows_20100500.zip" and ""nvflash_gtablet_2010110500.zip": http://db.tt/Wm25t7U
c. following roebeet's instruction, put Gtab to APX mode (volume down + power on), run nvflash_gtablet.bat, should flash the rom fine.
d. boot the Gtab after flashing, should be able to run the original stock rom.
e. download the 3588 stock rom from this thread:http://forum.xda-developers.com/showthread.php?t=842000
f. run recovery (volume up + power on) to upgrade to 3588 rom, remember to make a "recovery" folder with "command" (check the prefix and see if is name "sdcard") and rename the downloaded 3588 rom to "update.zip". Put both to the root of the sdcard.
g. now you should have 3588 rom after the recovery
h. download tnt lite 5.0 rom and run a recovery. you will get stuck at a black screen. Just reboot and enter recovery mode again (volume up + power on). do a "wipe data" and reboot. Then you will be able to run TnT lite 5.0. In the recovery mode, the "power" button is "enter", not the "home" button in CWM 0.8. Anyway, just follow the instruction on screen for button layout.
Thanks. I have actually done those and would do them all but G-Tab will only boot once after flash (step d) after that if I power down, I gotta black screened brick until reflashing original ROM again. It is impossible for me to do step "F" from Gaspra post
and with that I give up. I ordered another G-Tab, and I'm using the old one as a plant stand. Who said this can't be bricked? I managed to do it.
Send it to me. I'll pay shipping.
jesusgi said:
Thanks. I have actually done those and would do them all but G-Tab will only boot once after flash (step d) after that if I power down, I gotta black screened brick until reflashing original ROM again. It is impossible for me to do step "F" from Gaspra post
Click to expand...
Click to collapse
did you try to erase the rom? try this before flashing to the stock rom:
http://forum.xda-developers.com/showthread.php?t=974422

NVFLASH SUCKS!! Please help!

So i have used nvflash before and have ran into this issue before and eventually luck my way out of the problem but this time it aint happening. I am nv flashing the original nvflash_gtablet_2010110500 and it is successful but then it restarts and shows the gtable screen then when tapNtap shows up the screen starts to flash between the tapNtap logo and a black screen then eventually goes black. i flashed and reflashed 5-6 times and then tried the gtab 3588 apx and that didnt work and tried the first one and still no dice.
WHAT THE HELL!!!!
please someone help me .. i beg you!
After it goes black, have you tried holding down the "power" button to make sure it is off. Then restarting. Does anything happen.
Am I right that you are trying to get back to 2967 stock so you can do something else?
Rev
I figured it out and its really stupid. It was one line i didnt read. apperently NVflash DOES NOT format /data and well that was the issue. So i had to use NVflash and replace the recovery.img with the CWM.img and then boot into CWM, and wipe /data and then reflash 3588 via apx and it worked. stupid nv flash
You used nvlfash to fix a device. You didn't read the directions correctly and something went wrong. And you blame the program? Take a closer look at the user.
Agree with you, here people just jump to do advanced stuff to their tablets without reading and without knowing what the hell is a Rom and when things go wrong they blame any one besides themselves.
I nvflash my tablet, jumped from stock to vegan, tnt, and tnt 5 , flashing cwm, I don't remember how many times, and the only times I was in trouble was because I didn't read properly the warnings, but always I was able to fix it.
If you don't fully understand what you are doing, don't do it until you understand it.

[Q] Need help with rooting 3g (have read the how to)

Hey guys I really need your help, my phone has been down for the past 3 days now. I followed this guide:http://forum.xda-developers.com/showthread.php?t=547133&page=2. I will state that I am new to the forum so I cannot post on the actual how to, due to rules, or I would have. Basically i have made it all the way thru the guide, to the point where it tells me to:
- press MENU to power off! (do not reboot)
- hold HOME and POWER to boot into recovery mode
- apply update
once I reach there I have no way of resetting the phone so I just pulled battery after it said the cyanogenmod was installed from sdcard. I flashed the splash.nb, but now all that happens is my phone loads up the MyTouch 3g screen freezes for a few min then restarts and goes back into Android System Recovery screen. I really need your help and would be forever great-full if someone could lend me a hand. I will check back regularly.
Thank you very much ahead of time for whoever lends me a hand.
Troubled Guy With Non Working Phone
OP here
Come on guys someone has to have had this problem before. Even if you are sending me to another link who has dealt with this before it will still be a help.
First of all, I'm not familiar with your phone. But I will try to give you a few ideas and see if any of it works for you.
If you have a recovery installed and you have flashed Cyanogenmod, then you are rooted. I'm not sure how your recovery works, but you should have to use the volume buttons & power button to navigate recovery - or something similar. If you can get into recovery, you should be fine.
Go to the wipe menu and wipe cache/dalvik cache. If these weren't wiped properly before flashing, this could be the culprit. There should be an option to reboot, you may have to choose go back a couple times to find it. If that doesn't work, try flashing a different rom. You'll need to wipe everything in recovery (except the SD card) first, then choose "flash zip from SD card".
If your battery is almost dead, don't try flashing anything, just wipe. You'll need to get an external charger or a full battery before flashing anything.
Again, I don't know how your phone works, I have an Evo & pretty much just treated your post as such. It's a start, though. If you can give me more info, I can try to help further.
I also just noticed this is an old method for an old version of the phone. You do have the phone this was made for, correct? Have you tried sending a pm to the OP?
There is most likely an easier, newer way to root, but what's done is done. It also seems like it may be using Amon Ra recovery? If that's the case, that's the recovery I use so I can help you out there. You may also want to look at how to unroot and get your phone back to stock, then start over. I'm going in to work, but if you post back I'll try to help you out as soon as I get the chance.

[Q] TF700T started by itself got supper hot now stuck on boot screen.

I have a Asus TF700T and while it was in my car in its case it apparently started on it's own and ran down a full charge to about 10% so it must have been going for hours which would explain why it got so warm. I could not shut it off so it stayed on until there was no more charge. I was then able to charge it. When I hit the start button it starts but just hangs up in the animated boot screen and goes no further. Then I tried the on button with the volume button and got into TWRP. I really don't know anything about TWRP but I looked around and tried rebooting and a few other options but nothing changed. Still stuck on the boot up screen.
So I'm willing to learn about my tablet now that I am forced too. Can anyone please point me to the right solutions and can anyone tell me why it started on its own? You help is much appreciated. Thanks.
More likely some app never shut down and got hung up, running the battery down. Unless you live in Phoenix and had in your car in full sun heating it up to 140 F...
To give you any advice worth a damn you need to provide:
bootloader version
TWRP version
what rom you are running
In lieu of that, and to possibly get the tab out of the stuck boot, you could just do a factory wipe in TWRP.
Choose the Wipe option and swipe the button - let it finish and reboot system. That will wipe all user installed apps and settings, but leave your personal files untouched.
Let us know where that got you.
For general info and to get your PC set up for fastboot/adb you could peruse my guide here: http://forum.xda-developers.com/showthread.php?t=2688891
Thanks for the info. I will charge it back up and try your wipe suggestion.
As far as the other info you need, I'm not sure how I can get that if it won't boot, except probably the TWRP version. Can you suggest a way to obtain that info. As far as what Android version I was using I'm not really sure about that either. I bought this used in early 2013 and the version was whatever was around back then. Geez, I'm a little embassased. It's my most important tool and I know nothing about it. It's as if you asked me my sons name, age, and birthdate and I couldn't tell you. Back when I used a desktop, I knew everything about it but now, shame on me.
The TWRP version would help somewhat. Assuming you have a TWRP version compatible with your bootloader it would give us a hint on what you were running. But if you can boot to the bootloader with Power and Volume Down, just read the tiny script. Your BL version is right there.
But if TWRP is still working you could use it's build-in file manager to copy all your data off internal storage to a microSD.
Then download the latest firmware from Asus, unzip the file once, resulting in another zip and place that zip on a fat32 formatted microSD.
Flash the firmware in TWRP.
That would get you onto the latest bootloader, but would also install the stock recovery and rom.
Next just decide which custom rom you want to run, find the correct TWRP version, flash it in fastboot and then flash the rom.
Who would of thought that a menu option called "Wipe" would get me back up and running? Seems to me that Wipe would just blow away everything. You assistence is greatly appreciated.
Fogot to mention that I,m also going to follow your suggestions with the lastest firmware and custom rom but I have to put that is on hold until I have a backup tablet so I can continue doing my Ebay work and learning more on this terrific website. Thanks again for your help.

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