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nvflash on TF300T, is it unbrickable?

Simply put, I flashed system over my boot partition. I can boot in Fastboot and APX. I dont have the option to go into recovery anymore and I used to have three selection in the boot menu, now I have two, wipe data and fastboot (USB icon). Could I recover my unbrickable TF300T?
I have my unbrickable files
I flashed TWRP
I made a backup in that
System was good
I extracted CM10
I typed: "fastboot -i 0x0B05 flash system boot.blob" from the CM10 files
The tablet was stuck on the AndroidRoot screen
I restarted the tab with vol down and power
I entered TWRP
I restored my backup
I played with the tab
I tried installing CM10 again
I connected with the Fastboot protocol
I typed: "fastboot -i 0x0B05 flash boot boot.blob"
On restart, when I press down arrow + power, I immediately goes into Fastboot USB download protocol. I cant even get the system to show me the RCK screen, which would allow me into TWRP. I can only immediately go into fastboot mode, restart in APX mode, or restart the tab and stare at the AndroidRoot 9.4.3.30r01 with the ASUS logo in the middle.
So what is this, a soft brick? and more importantly, how can I restore my system with nvflash? Is this the way: http://forum.xda-developers.com/showthread.php?t=1757077 ???
And yes, I am very new to this. I took my time pouring over every instruction and document except on how to get CM10 running, I guess you cant just "wing" it.
I will be running this command tomorrow:
nvflash --bct create.bct --setbct --bl blob.bin --configfile factory-config.img --create --verifypart -1 –go
Is this the proper syntax for restoration using the unbrickable nvflash files? I want to restore my partitions, will this do it? Please, if you have tried this command, let me know how it turned out for you, Thank you.

My tablet works only in fastboot mode and APX, nothing else. HELP

My tablet works only in fastboot mode and APX, nothing else. Was on 4.1.1.
Does anyone can help me to unbrick?
thank you.
I can donate your help

tyla777 said:
My tablet works only in fastboot mode and APX, nothing else. Was on 4.1.1.
Does anyone can help me to unbrick?
thank you.
I can donate your help
Click to expand...
Click to collapse
First you need to provide more info (i.e. did you tried to flash something before this issue occured?, your device is unlocked?) and maybe we can help you.

Yes tablet is unlocked.
i flashed it with CWM Recovery and problems started.
Can't mount anything....
Then i used commands:
fastboot erase boot
fastboot erase recovery
Now then i trying to boot , it brings me error
http://youtu.be/P19Y3Apmbac

tyla777 said:
Yes tablet is unlocked.
i flashed it with CWM Recovery and problems started.
Can't mount anything....
Then i used commands:
fastboot erase boot
fastboot erase recovery
Now then i trying to boot , it brings me error
http://youtu.be/P19Y3Apmbac
Click to expand...
Click to collapse
I can't read the error from that video but i think you should flash a boot.img via fastboot and then flash CWM or TWRP recovery the same vai (via fastboot). BTW you have to use a boot.img from a JB rom.

Pretoriano80 said:
I can't read the error from that video but i think you should flash a boot.img via fastboot and then flash CWM or TWRP recovery the same vai (via fastboot). BTW you have to use a boot.img from a JB rom.
Click to expand...
Click to collapse
Error is 0x000000000
Where i can get boot.img?
Then i extract blob file, i get 5 blob filesblob.
HEADER – Header stuff (ignore it)
blob.APP – system.img
blob.LNX – boot.img
blob.SOS – recovery.img (e.g. regular boot.img)
blob.EBT – bootloader.bin (ignore)
Do i have to rename blob.LNX to boot.img or i should't ?
Do i need to erase all system boot recovery data?
Thanks.

tyla777 said:
Yes tablet is unlocked.
i flashed it with CWM Recovery and problems started.
Can't mount anything....
Then i used commands:
fastboot erase boot
fastboot erase recovery
Now then i trying to boot , it brings me error
http://youtu.be/P19Y3Apmbac
Click to expand...
Click to collapse
You made the same mistake I made:
http://forum.xda-developers.com/showthread.php?t=2031452
APX means you get to use nvflash, right?
I wish I was on the same boat.

Yes i can use nvflash.
but i can't restore my bootloder
maybe you know what to flash?

tyla777 said:
Yes i can use nvflash.
but i can't restore my bootloder
maybe you know what to flash?
Click to expand...
Click to collapse
What do you mean with "Yes i can use nvflash"? You already used the NvFlash tool and have the backup files or is just the fact that you are able to boot in APX mode?
As for the other question, yes rename the blob files ( blob.LNX - > boot.img) and flash from fastboot (fastboot -i 0x0B05 flash boot boot.img). Make sure your battery is full, just in case.
Try to flash the recovery.img, boot.img and system.img using the abive method.

Pretoriano80 said:
What do you mean with "Yes i can use nvflash"? You already used the NvFlash tool and have the backup files or is just the fact that you are able to boot in APX mode?
As for the other question, yes rename the blob files ( blob.LNX - > boot.img) and flash from fastboot (fastboot -i 0x0B05 flash boot boot.img). Make sure your battery is full, just in case.
Try to flash the recovery.img, boot.img and system.img using the abive method.
Click to expand...
Click to collapse
Just the fact
Flashed recovery boot system didn't helped
maybe someone knows how to flash with nvflash?

tyla777 said:
Just the fact
Flashed recovery boot system didn't helped
maybe someone knows how to flash with nvflash?
Click to expand...
Click to collapse
Being able to boot in APX doesn't mean you can use NvFlash to flash your device.If you never used the NvFlash tool to backup your files (and gain NvFlash access) you won't be able to do it anymore because a 9.4.5.26 or lower bootloader it's needed.
I'm not sure if the follow procedure will work but you could try to flash the complete blob via fastboot (rename the original asus blob to something like " tf700t.blob " , something like this : fastboot -i 0x0B05 flash staging tf700t.blob
Someone please correct me if the " flashing to staging" procedure is different.

Pretoriano80 said:
Being able to boot in APX doesn't mean you can use NvFlash to flash your device.If you never used the NvFlash tool to backup your files (and gain NvFlash access) you won't be able to do it anymore because a 9.4.5.26 or lower bootloader it's needed.
I'm not sure if the follow procedure will work but you could try to flash the complete blob via fastboot (rename the original asus blob to something like " tf700t.blob " , something like this : fastboot -i 0x0B05 flash staging tf700t.blob
Someone please correct me if the " flashing to staging" procedure is different.
Click to expand...
Click to collapse
maybe someone knows thne will be released NVFLASH version that support 10.... ver.

tyla777 said:
maybe someone knows thne will be released NVFLASH version that support 10.... ver.
Click to expand...
Click to collapse
ATM there's no way to do that ,Asus locked the bootloader pretty tight this time.
If you still can't manage to fix your issue i would recommend you an RMA ticket from Asus.

Bootloader Options Missing - Help

Hello everybody,
I have a tf300t that I was in the process of unlocking and flashing a new recovery and rom to. Needless to say something went wrong and I had to follow the NVFLASH guide to get the tablet back up and operating. It will start ICS just fine and let me access ADB and I also have access through APX. I do not however have the option when I hold volume down to choose to boot to recovery or fastboot modes. If I hold the volume down button during startup it only says COLD BOOTING LINUX.
During the NVFLASH I installed the blob file for TWRP ICS version 2.5.0.0. I know the recovery is working because if i go into the settings and choose to factory restart the device it will reboot into TWRP and automatically do its thing factory resetting and then the tablet will reboot to a fresh ICS asking me to input my wireless settings and account. Also if I put a stock firmware file from asus on the device it will notice it and tell me there is a update for the device if i want to install. If I say yes it will restart the tablet into TWRP and install the rom automatically. However on reboot the rom fails to start and I have to do the NVFLASH process to get it back to ICS.
Through ADB I used the adb reboot recovery command but it reboots the tablet and never enters TWRP just strait to ICS android, and the same goes for adb reboot bootloader or adb reboot-bootloader. If somebody can help me boot directory to TWRP recovery so I can try to wipe the device and install a custom rom I would greatly appreciate it!!!!!

waynestatemac said:
Hello everybody,
I have a tf300t that I was in the process of unlocking and flashing a new recovery and rom to. Needless to say something went wrong and I had to follow the NVFLASH guide to get the tablet back up and operating. It will start ICS just fine and let me access ADB and I also have access through APX. I do not however have the option when I hold volume down to choose to boot to recovery or fastboot modes. If I hold the volume down button during startup it only says COLD BOOTING LINUX.
During the NVFLASH I installed the blob file for TWRP ICS version 2.5.0.0. I know the recovery is working because if i go into the settings and choose to factory restart the device it will reboot into TWRP and automatically do its thing factory resetting and then the tablet will reboot to a fresh ICS asking me to input my wireless settings and account. Also if I put a stock firmware file from asus on the device it will notice it and tell me there is a update for the device if i want to install. If I say yes it will restart the tablet into TWRP and install the rom automatically. However on reboot the rom fails to start and I have to do the NVFLASH process to get it back to ICS.
Through ADB I used the adb reboot recovery command but it reboots the tablet and never enters TWRP just strait to ICS android, and the same goes for adb reboot bootloader or adb reboot-bootloader. If somebody can help me boot directory to TWRP recovery so I can try to wipe the device and install a custom rom I would greatly appreciate it!!!!!
Click to expand...
Click to collapse
You have to reboot after the initial nvflash first. Your partitions are laid out different in 4.0, 4.1, and 4.2 so flashing the twrp blob right after your nv restore likely put things in incorrect spots.
Id redo the nvflash, boot it up, set things up properly, THEN reboot to bootloader, reflash recovery using fastboot. That should fix you right up.
Sent from my ASUS Transformer Pad TF300T using xda app-developers app

pyraxiate said:
You have to reboot after the initial nvflash first. Your partitions are laid out different in 4.0, 4.1, and 4.2 so flashing the twrp blob right after your nv restore likely put things in incorrect spots.
Id redo the nvflash, boot it up, set things up properly, THEN reboot to bootloader, reflash recovery using fastboot. That should fix you right up.
Sent from my ASUS Transformer Pad TF300T using xda app-developers app
Click to expand...
Click to collapse
These are the commands I used to for NVFLASH posted by tobdaryl. He has you install the twrp recovery image in the 2nd to last command. I also believe I tried flashing the blob.sos as he said this was the stock recovery but that didn't get my bootloader options back either. Is there a command I should be doing different?
wheelie -r --blob blob.bin -created with Nvflash install
nvflash --resume --download 4 blob.EBT -created with blobunpack
nvflash --resume --download 10 blob.APP – created with blobunpack
nvflash --resume --download 6 blob.LNX – created with blobunpack
nvflash --resume --download 5 recovery.img-ICS twrp recovery image name
nvflash --resume --go
then press volume down to enter
http://forum.xda-developers.com/showthread.php?t=2240346

waynestatemac said:
These are the commands I used to for NVFLASH posted by tobdaryl. He has you install the twrp recovery image in the 2nd to last command. I also believe I tried flashing the blob.sos as he said this was the stock recovery but that didn't get my bootloader options back either. Is there a command I should be doing different?
wheelie -r --blob blob.bin -created with Nvflash install
nvflash --resume --download 4 blob.EBT -created with blobunpack
nvflash --resume --download 10 blob.APP – created with blobunpack
nvflash --resume --download 6 blob.LNX – created with blobunpack
nvflash --resume --download 5 recovery.img-ICS twrp recovery image name
nvflash --resume --go
then press volume down to enter
http://forum.xda-developers.com/showthread.php?t=2240346
Click to expand...
Click to collapse
Well, he would be the Nvflash expert it seems......
What happens when you only run the first command ? Thats what flashed the bootloader.... Also... you dont type the " -created with blobunpack" part. It should look like this :
nvflash --resume --download 4 blob.EBT
nvflash --resume --download 10 blob.APP
nvflash --resume --download 6 blob.LNX
nvflash --resume --download 5 recovery.img
nvflash --resume --go
then press volume down to enter
The recovery.img would be the twrp / cwm img file
Sent from my ASUS Transformer Pad TF300T using xda app-developers app

pyraxiate said:
Well, he would be the Nvflash expert it seems......
What happens when you only run the first command ? Thats what flashed the bootloader.... Also... you dont type the " -created with blobunpack" part. It should look like this :
nvflash --resume --download 4 blob.EBT
nvflash --resume --download 10 blob.APP
nvflash --resume --download 6 blob.LNX
nvflash --resume --download 5 recovery.img
nvflash --resume --go
then press volume down to enter
The recovery.img would be the twrp / cwm img file
Sent from my ASUS Transformer Pad TF300T using xda app-developers app
Click to expand...
Click to collapse
Yes i ran the instructions without the -created by... and they all ran successfully. I tried only writing the first command and it wrote successfully, however there still is no choices when I hold volume down on the tablet and power on, it go's strait to cold boot Linux.
For the heck of it I downloaded a custom ICS rom renamed it to something a stock asus firmware would have and threw it on the tablet. It found the file and asked to update. I let it update which it restarts goes into the TWRP 2.5.0.0 recovery and flashes the file and reboots to the custom ICS rom. So for now the tablet will allow me to install zips if i rename them to a firmware that asus would use.

What I think I'm going to do next is download a 4.2 bootloader & Rom zip file and rename it to a asus stock rom file. Hopefully it reboots to recovery installs it and when it reboots after that have a 4.2 bootloader that works and a 4.2 recovery that allows me to install a custom rom. Fingers crossed!

waynestatemac said:
What I think I'm going to do next is download a 4.2 bootloader & Rom zip file and rename it to a asus stock rom file. Hopefully it reboots to recovery installs it and when it reboots after that have a 4.2 bootloader that works and a 4.2 recovery that allows me to install a custom rom. Fingers crossed!
Click to expand...
Click to collapse
since 4.2 rewrites partitions completely, it should work. My fingers are crossed for ya too ! let us know
Sent from my ASUS Transformer Pad TF300T using xda app-developers app

may have bricked

i decided to try out some ROMS (my first time trying any of this stuff)
yesterday my tablet was locked, stock and rooted, 4.0.3
1. i unlocked the bootloader successfully
2. today i did the NVflash and got through it alright
went through the whole process backedup all the files i was supposed to
3. then i put TWRP on it, that went alright too
4. i messed up putting this ROM on it: Asu-Ics_R-2 TF300 HYDROPONIC
5. tried an NVflash restore http://forum.xda-developers.com/showthread.php?p=40432730#post40432730
wheelie -r --blob blob.bin -created with Nvflash install
nvflash --resume --download 4 blob.EBT -created with blobunpack
nvflash --resume --download 10 blob.APP – created with blobunpack
nvflash --resume --download 6 blob.LNX – created with blobunpack
nvflash --resume --download 5 recovery.img-ICS twrp recovery image name
nvflash --resume --go
got all of that except the last step:ICS twrp recovery image
i didnt make a TWRP recovery image
now the screen is always black until i run the wheelie command (step 1 above)
so luckily my windows computer does recognize the tablet with the apx driver installed
i can not get into TWRP, cause the screen is black
i didnt even think it was turning on until i connected via USB and Wndows made the connection sound

blob. bin & bootloader.bin

Hi.. like the title said. may i get or your uploading blob.bin and bootloader.bin (.bin not .img) for Shield K1.
blob and bootloader from old version such kitkat / marshmallow it's ok.
cause, i want to try revive my shield with apx tools.
Thank you.