yep, will start mine next week i hope. Fun! Fun! Fun!
![]()
Nvflash
Aright I am studying how to nvflash so I can shoot a series of videos , any tips or tricks from the masters that can make this easier . from what i have already read (and I always ,always study a mod before I perform it) its prepare you downloads and let the fun begin
1 - 13 of 13 Posts
If you have an nvflash virgin tablet, grab the partition table from it first so you know exactly which flavor of gtab structure you have. Some gtabs have the blo partition (boot logo) in part 6 and some in part 7. That's the easiest way to distinguish the two.
You don't want to go blindly flashing your new shiny boot logo bitmap image to the wrong one. If you're just flashing all the parts then that doesn't matter as much, but I would make a back up of the entire set of original partition images first, anyway.
If you do have one with blo in partition 7, please grab all partitions and upload them for availability. I wish I had known about the different structures when I got my gtab, because I had one of these with the blo part 7. I flashed a logo to part 6 and soft-bricked it. Now, I have the more common image structure with blo in part 6, had to flash entire image set to unbrick it. I'd like to try to flash to the original structure mine had and see if there's any difference.
Nvflash is really simple to use once you get it set up, just get the right files for your OS. Follow the path Roebeet has detailed and you won't go wrong. Using nvflash to replace stock recovery partition (part 9) with clockworkmod has saved my boot looping gtab once already.
You don't want to go blindly flashing your new shiny boot logo bitmap image to the wrong one. If you're just flashing all the parts then that doesn't matter as much, but I would make a back up of the entire set of original partition images first, anyway.
If you do have one with blo in partition 7, please grab all partitions and upload them for availability. I wish I had known about the different structures when I got my gtab, because I had one of these with the blo part 7. I flashed a logo to part 6 and soft-bricked it. Now, I have the more common image structure with blo in part 6, had to flash entire image set to unbrick it. I'd like to try to flash to the original structure mine had and see if there's any difference.
Nvflash is really simple to use once you get it set up, just get the right files for your OS. Follow the path Roebeet has detailed and you won't go wrong. Using nvflash to replace stock recovery partition (part 9) with clockworkmod has saved my boot looping gtab once already.
How do I do that?If you have an nvflash virgin tablet, grab the partition table from it first
@mp4
Let me know when the videos are up and done.
I am going to create a new section for 1.2 boot loader Guides, and How-To's.
Videos of NVFlash would be perfect.
Let me know when the videos are up and done.
I am going to create a new section for 1.2 boot loader Guides, and How-To's.
Videos of NVFlash would be perfect.
Credit goes to P00r for putting this together with the correct files and commands.How do I do that?
Grab "backup_gtablet_rev2.zip" from the following post on XDA:
[STICKY][GUIDE] Backup of your BCT AND Partition with NVFLASH on the gtab
This is for a Windows PC.
Extract the files to a folder you'll recognize. Enter the Gtablet into apx mode (with the tablet off, hold power and volume minus until the screen goes black), then connect it to your computer. Windows may ask for the drivers if you haven't connected the Gtab to the PC prior to this, they are included in the .zip. If you set this up correctly the Gtab will be recognized as an "APX" device.
Open up an elevated command prompt (run as administrator) and navigate to the folder with the extracted files.
Run the following command:
Code:
nvflash.exe --bl bootloader.bin --getbct --bct backup.bct --goThen run the next command:
Code:
nvflash.exe -r --getpartitiontable partition.txtExit command prompt, eject APX, disconnect Gtab from PC, and restart the Gtab.
Welcome to nvflash, now you're equipped to restore from your botched ROM Flashes if you need.
Edit: You can also run the batch file and it will back up all the partition images. It may error on the system image and it won't back up your user data partition. The correct System image can be retrieved from a clockworkmod backup and flashed through nvflash.
hmm. got to give this a tried. i been playing with rom change without properly backing thing up.Credit goes to P00r for putting this together with the correct files and commands.
Grab "backup_gtablet_rev2.zip" from the following post on XDA:
[STICKY][GUIDE] Backup of your BCT AND Partition with NVFLASH on the gtab
This is for a Windows PC.
Extract the files to a folder you'll recognize. Enter the Gtablet into apx mode (with the tablet off, hold power and volume minus until the screen goes black), then connect it to your computer. Windows may ask for the drivers if you haven't connected the Gtab to the PC prior to this, they are included in the .zip. If you set this up correctly the Gtab will be recognized as an "APX" device.
Open up an elevated command prompt (run as administrator) and navigate to the folder with the extracted files.
Run the following command:
This will load the bootloader and backup the bct table and may take a couple of minutes.Code:nvflash.exe --bl bootloader.bin --getbct --bct backup.bct --go
Then run the next command:
This will output a text file detailing the partition structure.Code:nvflash.exe -r --getpartitiontable partition.txt
Exit command prompt, eject APX, disconnect Gtab from PC, and restart the Gtab.
Welcome to nvflash, now you're equipped to restore from your botched ROM Flashes if you need.
Edit: You can also run the batch file and it will back up all the partition images. It may error on the system image and it won't back up your user data partition. The correct System image can be retrieved from a clockworkmod backup and flashed through nvflash.
Just follow instructions and you should be good.
Even if you soft brick the gtab, you should be able to get back by NVFashing to stock.
Even if you soft brick the gtab, you should be able to get back by NVFashing to stock.
That is what I have found. These devices are pretty hardy and to REALLY brick one must be difficult. If you can get NVFlash to work, you have a good solid base to assure that you can get control back.Just follow instructions and you should be good.
Even if you soft brick the gtab, you should be able to get back by NVFashing to stock.
Just back from a month at sea and ready to play around with my gtablet. I have managed to back up the partition table and the BLO is in partition 7.If you have an nvflash virgin tablet, grab the partition table from it first so you know exactly which flavor of gtab structure you have. Some gtabs have the blo partition (boot logo) in part 6 and some in part 7. That's the easiest way to distinguish the two.
You don't want to go blindly flashing your new shiny boot logo bitmap image to the wrong one. If you're just flashing all the parts then that doesn't matter as much, but I would make a back up of the entire set of original partition images first, anyway.
If you do have one with blo in partition 7, please grab all partitions and upload them for availability. I wish I had known about the different structures when I got my gtab, because I had one of these with the blo part 7. I flashed a logo to part 6 and soft-bricked it. Now, I have the more common image structure with blo in part 6, had to flash entire image set to unbrick it. I'd like to try to flash to the original structure mine had and see if there's any difference.
Nvflash is really simple to use once you get it set up, just get the right files for your OS. Follow the path Roebeet has detailed and you won't go wrong. Using nvflash to replace stock recovery partition (part 9) with clockworkmod has saved my boot looping gtab once already.
Would you still like me to upload the file and if so where should I send it? Oh! and which files would I be uploading?
Great post. The more people are educated, then it could lead to more people helping others....
1 - 13 of 13 Posts
- This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Android Tablets Forum
A forum community dedicated to Android Tablet owners and enthusiasts. Come join the discussion about collections, troubleshooting, displays, models, styles, reviews, software, hardware accessories, classifieds, and more!
Full Forum Listing
Recommended Communities
