I'm hoping that some kind soul can help me. I'm about 10 hours into trying to update what was a stock TF201 to KitKat or possibly Lollipop.
First, I unlocked the TF201 using the official unlocking app supplied by ASUS. I didn't attempt to root as I figured I could flash a ROM that was already rooted. I then installed ADB and Fastboot on my Win7 PC. I had a bunch of trouble getting ADB and Fastboot to work reliably, but after trying a number of different things, I eventually got them both working reliably. I am currently using what I believe is the stock ASUS bootloader (<1.00 e> released by "WW_epad-10.4.2.15-20120917" A03). Next, I finally got CM Recovery 5.8.3.4 installed and working. I tried to flash a couple of different CM ROMs (cm-9.0.0-tf201.zip, cm-9.1.0-tf201.zip, and cm-11-20140926-UNOFFICIAL-tf201.zip), all with the same result. They appeared to install correctly, but upon reboot, they would all hang indefinitely at the initial ASUS splashscreen that says "The Device is UnLocked" in the upper left corner. I tried leaving the tablet alone for up to an hour in hopes that it would eventually start, but no luck. I have a feeling that the current bootloader I'm using is incompatible with the various OS images that I tried to install, but I could obviously be wrong. Can anyone tell me what I'm doing wrong or if there's a different bootloader I should be using?
Thanks in advance for your help!
Please ignore this last post. Somehow I got it working. I wish I could share, but I really don't know how or why it started working again.
I had the same problem after flashing cm 11 to my tf201.
(i followed the guide to make my tf201 "unbrikable" by backing up blobs via nvflash.)
i thried a lot of things to get cm running, but then i choosed "wipe data" in the bootloader menue. after that my tf201 doesn't start at all.
i can see the android robot and a blue status bar for 1 second, then screen turns black 1 second, then the android robot comes back and so on. i can't stop this loop. Pulling down the power button simply starts this process new. can't start bootloader o.e.
What have i dun?? -.-
negRomino said:
I had the same problem after flashing cm 11 to my tf201.
(i followed the guide to make my tf201 "unbrikable" by backing up blobs via nvflash.)
i thried a lot of things to get cm running, but then i choosed "wipe data" in the bootloader menue. after that my tf201 doesn't start at all.
i can see the android robot and a blue status bar for 1 second, then screen turns black 1 second, then the android robot comes back and so on. i can't stop this loop. Pulling down the power button simply starts this process new. can't start bootloader o.e.
What have i dun?? -.-
Click to expand...
Click to collapse
Just restore via nvflash ?
Thx Josh
lj50036 said:
Just restore via nvflash ?
Thx Josh
Click to expand...
Click to collapse
After a long time of hating myself for bricking the tf201 i am about to give a new try to reset via nvflash.
I read the tutorial (http://forum.xda-developers.com/showthread.php?t=1927818) but the attached files for unblobd stock ROMs or the semi-automated complete recovery are not online anymore. anyone who can help me out with the files?
edit: APX driver works.
negRomino said:
After a long time of hating myself for bricking the tf201 i am about to give a new try to reset via nvflash.
I read the tutorial (http://forum.xda-developers.com/showthread.php?t=1927818) but the attached files for unblobd stock ROMs or the semi-automated complete recovery are not online anymore. anyone who can help me out with the files?
edit: APX driver works.
Click to expand...
Click to collapse
If you dont have your blob.bin its pointless..
This file is from your device (needed backed up before a brick) and only for your device......
Thx Josh
do not use CM Recovery ......... USE TWRP
fastboot erase system
fastboot erase recovery
fastboot erase userdata
fastboot erase boot
fastboot erase misc
fastboot erase cache
YOU HAVE TO FLASH BOOTLOADER ON THE LINK
https://www.androidfilehost.com/?fid=23060877490002899
Check MD5 FEEA44BC7370116E1807DC943E2700B5
unzipit and copy "blob" in adb/fastbooy folder
fastboot flash boot blob
than reboot
YOU HAVE TO FLASH RECOVERY ON THE LINK
https://www.androidfilehost.com/?fid=95916177934539154
Check MD5 118eb4f530c99922126d11f71c981429
unzipit and copy "boot.blob" in adb/fastbooy folder
fastboot erase recovery
fastboot flash recovery boot.blob
reboot
Go to twrp/wipe/format data then type yes
It takes about 70 minutes to format
Make sure that your battery is full
Do Not interrupt format(if you do, it will brick)
After it's done go to Wipe//Advanced Wipe//Select Data
Tap “Repair or Change File System”//”Change File System//F2FS
Swipe to Change
Wipe dalvik cache, system, cache, data, internal storage
Flash KatKiss-5.1.1_TF201_030.zip from microsd card
Flash Supersu.zip
Flash Gapps.zip
Reboot
Related
After I tried to backup my data and it got to the "backing up system" stage of the nandroid backup, my the progress bar was empty, and didnt load anything for like 3 min. I tried to flash a rom after a 3 times wipe, and same thing, at the flashing progress bar didn't load anything at all. I pulled the battery since it hadnt loaded any progress, but now I bootloop. I can still access my recovery menu and fastboot, but just cant boot up correctly. Im afraid that my recovery wont work if i try to flash a different rom. Anyone having the same problem, or solutions to this problem?
Ryoma Echizen said:
After I tried to backup my data and it got to the "backing up system" stage of the nandroid backup, my the progress bar was empty, and didnt load anything for like 3 min. I tried to flash a rom after a 3 times wipe, and same thing, at the flashing progress bar didn't load anything at all. I pulled the battery since it hadnt loaded any progress, but now I bootloop. I can still access my recovery menu and fastboot, but just cant boot up correctly. Im afraid that my recovery wont work if i try to flash a different rom. Anyone having the same problem, or solutions to this problem?
Click to expand...
Click to collapse
Get into fastboot. Run command "fastboot erase recovery" . Then go download the latest twrp.img , place this in your platform-tools folder or wherever fastboot is located. Then manually flash recovery "fastboot flash recovery twrp.img" reboot the phone into bootloader then go to recovery. Go to wipe and do a data wipe. Then to the advanced menu and format the system partition. Then download preludedrew stock rooted rom , and try to flash that. You should be golden.
Sent from my PG86100 using Tapatalk
Would that be this rom? http://forum.xda-developers.com/showthread.php?t=1192670
so i should navigate in terminal (i prefer to use my mac if i can) to platform-tools and type in ./adb devices
./fastboot
./fastboot erase recovery
./fastboot flash recovery twrp.img
Then wipe data and system partition from the epic win recovery, and flash the rom from the link above?
Please confirm if that's correct, if not, please tell me where im wrong.
Yeah the problem (really my bad i gotta delete this thread) was that the progress wasnt really shown, the previous recoveries i had used had shown progress continuously, but on the evo i just waited the full normal time it would take to install the package, and then the install completed itself instantly (nearly instantly).
Ryoma Echizen said:
Yeah the problem (really my bad i gotta delete this thread) was that the progress wasnt really shown, the previous recoveries i had used had shown progress continuously, but on the evo i just waited the full normal time it would take to install the package, and then the install completed itself instantly (nearly instantly).
Click to expand...
Click to collapse
Is it all working?
Sent from my PG86100 using Tapatalk
Just FYI
Some rom will not display progress bar correctly.
Hi All,
Long time lurker and I appreciate all the work everyone does here. It makes owning an android device a great amount of fun...but as you can see by the title of the thread, a great amount of stress as well :laugh:
My device is unlocked and I've used CWM and recenlty noticed that along one of my flashes TWRP 2.4 installed over CWM. All is well because I was meaning to switch over and try this recovery out. Smooth, fast, I like. But I recently installed CM 10.1 using the october version with the JB bootloader because I did not have it. Everything was nice, but I wanted to update CM 10.1 to a more recent UNOFFICIAL build so I flased the 3/20 version on my device. Everything was smooth but the WiFi dropped all the time so I decided to wait out a more stable "official" version of CM 10.1. Take note that I have(had) TWRP 2.4. Now I wanted to stick with JB 4.2.X so I decided to flash Energy's 3/21 build but this hung up on the ASUS screen... So I decided to reflash the rom but first installing the JB bootloader and partitions zip. Still no luck and while exiting TWRP, I noticed that it stated that my device isn't rooted and would I like to root? So I swiped and did it but it seems that the JB bootloader and partitions zip file erased everything on my device, Roms, GAPPS, SU, backups...gone.
The next thing I did was execute Urkels fresh root and fresh start and that seemed to go through all the steps with no issue. When I went back into recovery I noticed that I now have TWRP 2.2.2.1 with a JB bootloader... so what ever I did downgraded TWRP? Ok... Now I wanted to play it safe and stick to the October version of CM 10.1 with the JB bootloader but while flashing the rom (ext SDCARD) i receive an error. I decided to re-execute Urkels fresh root and fresh start and now all my device does is boot into TWRP 2.2.2.1. I can't use fastboot even with holding the power button and vol down.
At this point I feel lost and defeated, I can't use external SD anymore and I can only mount the system. So I decided to see if ADB works. ADB works great in recovery and am able to send files to the device. I sent a ROM to see if I can install but it fails because it can't mount the cache and this is where I am now. Lost... confused and desperate for help :crying: I'll make sure XDA gets a nice donation if anyone can help me out!
What works -
boot to TWRP 2.2.2.1 (thats all)
ADB in recovery
What doesn't-
No rom installed
No backup
No fastboot
My troubleshooting
Again ANY help is appreciated!
Mike
Would I be able to update TWRP within TWRP using a 2.4.4.0 zip file?
TheYoz said:
Would I be able to update TWRP within TWRP using a 2.4.4.0 zip file?
Click to expand...
Click to collapse
This is happening because you are now on 4.2.1 bootloader with an old TWRP which is not compatible with the new bootloader.
When you say you cannot access fast boot do you mean the usb icon is missing? If you do that is part of the new bootloader. As soon as you get to where the icons are you are automatically in fast boot unless you select one of the icons.
I'm out at the moment but if you reply letting me know that you can get to the icons I will post a file when I get back and some instructions to downgrade you to old bootloader and compatible TWRP.
flumpster said:
This is happening because you are now on 4.2.1 bootloader with an old TWRP which is not compatible with the new bootloader.
When you say you cannot access fast boot do you mean the usb icon is missing? If you do that is part of the new bootloader. As soon as you get to where the icons are you are automatically in fast boot unless you select one of the icons.
I'm out at the moment but if you reply letting me know that you can get to the icons I will post a file when I get back and some instructions to downgrade you to old bootloader and compatible TWRP.
Click to expand...
Click to collapse
I figured my TWRP version might have been the culprit...
When I restart and hold the vol down button it normally would activate fastboot, now it goes directly to TWRP, no icons whatso ever. Before I would get the recovery icon, a usb (I think) and an option to wipe data. I can't get to that screen anymore. Is there a command in adb that will allow me to restart to fastboot from recovery? I myself am at work too so I will test anything I can in 3 - 4 hours. Thanks for taking the time to respond! :good:
So basically I won't be able to put TWRP 2.4.4.0 within my current version of TWRP?
TheYoz said:
I figured my TWRP version might have been the culprit...
When I restart and hold the vol down button it normally would activate fastboot, now it goes directly to TWRP, no icons whatso ever. Before I would get the recovery icon, a usb (I think) and an option to wipe data. I can't get to that screen anymore. Is there a command in adb that will allow me to restart to fastboot from recovery? I myself am at work too so I will test anything I can in 3 - 4 hours. Thanks for taking the time to respond! :good:
So basically I won't be able to put TWRP 2.4.4.0 within my current version of TWRP?
Click to expand...
Click to collapse
The version of TWRP you have will not mount the partitions you need to flash anything. You either need to downgrade the bootloader so that version of TWRP will work or get the version of TWRP back on there that was edited to work with the new 4.2.1 bootloader.
When you installed that partition.zip from energy rom it installed the new bootloader and the compatible twrp the same time. To go back he also has a zip that will restore old bootloader and old twrp. This is what you should have done.
What I am worried about now is the fact that you cannot even get to fastboot from the buttons.
Try adb reboot bootloader.
If that lets you in then download this .. http://flumpster.lolcakes.com/android/blob and place it in your fastboot directory.
Now type.
fastboot -i 0x0B05 flash staging blob
wait for it to fully flash and then type
fastboot -i 0x0B05 reboot
Give it about 20 seconds, if it doesn't restart then you will have to hold the power button down for 10 seconds to force a restart.
When it restarts it should now start to fill the blue line on the Asus screen which will flash the old bootloader and compatible TWRP. If it does this then great, just wait until it has finished and it should put you back into twrp where you will be able to install a rom off your external SD.
If it does not do the blue line then we have bigger probs and I hope you have nvflash backup files.
flumpster said:
The version of TWRP you have will not mount the partitions you need to flash anything. You either need to downgrade the bootloader so that version of TWRP will work or get the version of TWRP back on there that was edited to work with the new 4.2.1 bootloader.
When you installed that partition.zip from energy rom it installed the new bootloader and the compatible twrp the same time. To go back he also has a zip that will restore old bootloader and old twrp. This is what you should have done.
What I am worried about now is the fact that you cannot even get to fastboot from the buttons.
Try adb reboot bootloader.
If that lets you in then download this .. http://flumpster.lolcakes.com/android/blob and place it in your fastboot directory.
Now type.
fastboot -i 0x0B05 flash staging blob
wait for it to fully flash and then type
fastboot -i 0x0B05 reboot
Give it about 20 seconds, if it doesn't restart then you will have to hold the power button down for 10 seconds to force a restart.
When it restarts it should now start to fill the blue line on the Asus screen which will flash the old bootloader and compatible TWRP. If it does this then great, just wait until it has finished and it should put you back into twrp where you will be able to install a rom off your external SD.
If it does not do the blue line then we have bigger probs and I hope you have nvflash backup files.
Click to expand...
Click to collapse
Crossing my fingers... I will try what you mentioned and no, I don't have NVFLASH. Something that I have been meaning to do for a few weeks now too. Thanks for the help I will update when I get a chance to try.
Mikw
TheYoz said:
Crossing my fingers... I will try what you mentioned and no, I don't have NVFLASH. Something that I have been meaning to do for a few weeks now too. Thanks for the help I will update when I get a chance to try.
Mikw
Click to expand...
Click to collapse
You cannot do the nvflash process now. You could only do it while on ICS and there is no way back to ICS without having nvflash backups.
flumpster said:
You cannot do the nvflash process now. You could only do it while on ICS and there is no way back to ICS without having nvflash backups.
Click to expand...
Click to collapse
I am able to adb reboot bootloader, and it brings me to fastboot!
I successfully executed the steps you gave me but I didn't get the android screen with the blue line... it went back to TWRP 2.2.2.1. Can I fastboot the new version of TWRP?
TheYoz said:
I am able to adb reboot bootloader, and it brings me to fastboot!
I successfully executed the steps you gave me but I didn't get the android screen with the blue line... it went back to TWRP 2.2.2.1. Can I fastboot the new version of TWRP?
Click to expand...
Click to collapse
Tried one more time with no success... Please let me know if I have any other options since I can get to fastboot via ADB.
I think the reason I am running into this mess is because I didn't download the JB update from ASUS and move the system.blob file according to Urkel fresh start
TheYoz said:
Tried one more time with no success... Please let me know if I have any other options since I can get to fastboot via ADB.
I think the reason I am running into this mess is because I didn't download the JB update from ASUS and move the system.blob file according to Urkel fresh start
Click to expand...
Click to collapse
I have even tried installing the TWRP.blob (newest JB version) file using this method but still reverts to version 2.2.2.1. I'm stumped
TheYoz said:
I have even tried installing the TWRP.blob (newest JB version) file using this method but still reverts to version 2.2.2.1. I'm stumped
Click to expand...
Click to collapse
I was worried about this. I have seen loads of people with the same problem you have over on the tf300 forums.
They can access fastboot thru adb reboot fastboot and it appears to send the file over ok but then it doesn't work.
When you mentioned you couldn't get to fastboot by holding button combo it looked like the same prob as them.
Have a look at this thread. http://forum.xda-developers.com/showthread.php?t=2179874
flumpster said:
I was worried about this. I have seen loads of people with the same problem you have over on the tf300 forums.
They can access fastboot thru adb reboot fastboot and it appears to send the file over ok but then it doesn't work.
When you mentioned you couldn't get to fastboot by holding button combo it looked like the same prob as them.
Have a look at this thread. http://forum.xda-developers.com/showthread.php?t=2179874
Click to expand...
Click to collapse
So I probably need to send it to ASUS or wait for a solution? That is for the TF300 would I be able to use any steps for that device with mine?
Also,
I purchased this in January 2012 from best buy, any possibility I can go through them to have this issue fixed?
TheYoz said:
I have even tried installing the TWRP.blob (newest JB version) file using this method but still reverts to version 2.2.2.1. I'm stumped
Click to expand...
Click to collapse
Flash the .img not the blob that should fix your issue.
Loco0729 said:
Flash the .img not the blob that should fix your issue.
Click to expand...
Click to collapse
I doubt it will but he can try.
No luck flashing the .img file instead. This is the worst
Flumpster thanks a bunch for all of your help. I ended up sending in the tablet, as expected they had to replace the motherboard.:
They quoted me this origionally:
Parts: $165
Labor: $65
Shipping $10
TOTAL $240!!!
I called and complained until my eyes popped out of my head and they ended up replacing the motherboad and shipped it back to me for $150. Now I think I'm going to sell this thing with the dock and buy a Nexus 10. Again, thanks for your help.
Another note... It will probably be a pain to unlock and root this thing again after the RMA im assuming. No more ASUS.
I wanted to upgrade my Nabi with the latest OTA. I had TWRP 2.2.2.1. I used it to revert to an old backup. After the restore, I tried to apply the OTA updates. After it rebooted and started the install I got an "!" Android logo.
I power cycled and I was able to boot back in. I noticed I still had the Play Store app (which will not work, error about connecting to services) and suspect the "stockunrooted" restore I used may not have been completely "stock". I did lose root and TWRP though.
I tried to reinstall TWRP again, but it appears that Fastboot no longer works since the restore. The tablet just hangs on the Nabi logo indefinitely. When I press Vol - & + with PWR, and select Recovery Mode, I just get another "!" Android logo (is this stock recovery?).
ADB works, it sees the tablet and I'm able to push, access shell etc.
I used motochopper to root the Nabi again. I tried installing flash_image to manually flash a new TWRP recovery.img, but running the command I get an error about "error scanning partitions".
I'm not sure what else I can do to get Fastboot working or a recovery system installed again. OTA upgrade will not apply, and I'm stuck on 1.9.37 at this point.
Does anyone have a suggestion how I can get Fastboot fixed and the Nabi back to "normal" / upgradeable.
Thanks for your help
kaijan said:
I wanted to upgrade my Nabi with the latest OTA. I had TWRP 2.2.2.1. I used it to revert to an old backup. After the restore, I tried to apply the OTA updates. After it rebooted and started the install I got an "!" Android logo.
Click to expand...
Click to collapse
What software rev did you get to when doing the OTA's?
I power cycled and I was able to boot back in. I noticed I still had the Play Store app (which will not work, error about connecting to services) and suspect the "stockunrooted" restore I used may not have been completely "stock". I did lose root and TWRP though.
Click to expand...
Click to collapse
That is usually a sign that various Google services are removed from the system partition. So in that case it is returned to stock, but there is still information of the Play install on the data partition.
I tried to reinstall TWRP again, but it appears that Fastboot no longer works since the restore. The tablet just hangs on the Nabi logo indefinitely. When I press Vol - & + with PWR, and select Recovery Mode, I just get another "!" Android logo (is this stock recovery?).
ADB works, it sees the tablet and I'm able to push, access shell etc.
I used motochopper to root the Nabi again. I tried installing flash_image to manually flash a new TWRP recovery.img, but running the command I get an error about "error scanning partitions".
I'm not sure what else I can do to get Fastboot working or a recovery system installed again. OTA upgrade will not apply, and I'm stuck on 1.9.37 at this point.
Click to expand...
Click to collapse
Usually when it hangs at the Nabi logo it means you don't have the USB cable plugged in or that the fastboot driver is not installed.(Check device manager and see if fastboot driver is installed/no exclimation point). If that's not the issue then it's the bootloader which I have only seen one person have that issue. Depending on which OTA's you have ran there was an update to a Jellybean bootloader so it's possible. That can be fixed with nvflash or placing the bootloader blob in the staging partition.
Also you can always get recovery back without fastboot in Android by dd'ing the recovery over.
For example if the recovery image is on the internal SD
dd if=/data/media/recovery.img of=/dev/block/platform/sdhci-tegra.3/by-name/SOS
aicjofs said:
What software rev did you get to when doing the OTA's?
That is usually a sign that various Google services are removed from the system partition. So in that case it is returned to stock, but there is still information of the Play install on the data partition.
Usually when it hangs at the Nabi logo it means you don't have the USB cable plugged in or that the fastboot driver is not installed.(Check device manager and see if fastboot driver is installed/no exclimation point). If that's not the issue then it's the bootloader which I have only seen one person have that issue. Depending on which OTA's you have ran there was an update to a Jellybean bootloader so it's possible. That can be fixed with nvflash or placing the bootloader blob in the staging partition.
Also you can always get recovery back without fastboot in Android by dd'ing the recovery over.
For example if the recovery image is on the internal SD
dd if=/data/media/recovery.img of=/dev/block/platform/sdhci-tegra.3/by-name/SOS
Click to expand...
Click to collapse
OTA is trying to install 2.1.27
You were correct about the fastboot driver issue. I was using Windows 8.1 and it it wasn't working properly. I switched to Ubuntu and now have no problems.
I was able to flash TWRP 2.3.3 and tried another restore to stock. Did OTA again, but still get the "!" Android shortly after it reboots and starts installing. I can't seem to get rid of gapps either. Play Store is still installed. I've tried wiping /data/media, cache's etc and it still remains.
I'm not sure why the OTA upgrade keeps failing. Do you think it's due to the gapps still being on the device?
Any other ideas on how I can get the OTAs to work?
Update:
I booted up stock recovery and tried the update from cache
Verifying current system...
assert failed: apply_patch_check("/system/app/Gallery2.apk", "4cadedee1defcdc28afc99ea968ebb1e631e7b9", "ee310bfc0d0ad2fe11356b97f8cb6e754aa43f2b")
E: Error in /tmp/sideload/package.zip
(Status 7)
Installation aborted.
Click to expand...
Click to collapse
kaijan said:
OTA is trying to install 2.1.27
You were correct about the fastboot driver issue. I was using Windows 8.1 and it it wasn't working properly. I switched to Ubuntu and now have no problems.
I was able to flash TWRP 2.3.3 and tried another restore to stock. Did OTA again, but still get the "!" Android shortly after it reboots and starts installing. I can't seem to get rid of gapps either. Play Store is still installed. I've tried wiping /data/media, cache's etc and it still remains.
I'm not sure why the OTA upgrade keeps failing. Do you think it's due to the gapps still being on the device?
Any other ideas on how I can get the OTAs to work?
Update:
I booted up stock recovery and tried the update from cache
Click to expand...
Click to collapse
Hmm that is it weird. It does look like gapps is still installed .As gapps removes gallery2.apk and why it's failing, I don't understand if it's stock how that is happening. Use these updates yet? http://forum.xda-developers.com/wiki/Fuhu_nabi_2
This thread died out....I hate to bump it back to the top...But I have a NABI2-NV7A that I rooted along time ago....and i booted it up and was gonna do some upgrades and everything went kaboom!!
I have TWRP 2.2.2.1 installed.
I can get into TWRP but not fast-boot mode
I'm on a laptop with windows 10 installed...I don't think it's driver related....as i can send commands via adb while TWRP is up....and the NABI responds to those commands
But i never get past the logo screen....and I'm not sure what to to do with NVflash.
I'm experienced...but rooted this thing and installed GAPPS like 2 years ago and the kids dug this thing up and the play store wouldn't work any longer....i read about the OTA....so i was trying to go back to stock and get those OTA's.
Any suggestions or advice?? Anyone...hello....bueller....bueller
hotspace said:
This thread died out....I hate to bump it back to the top...But I have a NABI2-NV7A that I rooted along time ago....and i booted it up and was gonna do some upgrades and everything went kaboom!!
I have TWRP 2.2.2.1 installed.
I can get into TWRP but not fast-boot mode
I'm on a laptop with windows 10 installed...I don't think it's driver related....as i can send commands via adb while TWRP is up....and the NABI responds to those commands
But i never get past the logo screen....and I'm not sure what to to do with NVflash.
I'm experienced...but rooted this thing and installed GAPPS like 2 years ago and the kids dug this thing up and the play store wouldn't work any longer....i read about the OTA....so i was trying to go back to stock and get those OTA's.
Any suggestions or advice?? Anyone...hello....bueller....bueller
Click to expand...
Click to collapse
Have you tried using "adb reboot-bootloader"
There are some things to try before breaking out nvflash. The easiest would be to flash the boot loader and a new TWRP in one recovery session.
Boot twrp2.2.21, Install KK boot loader zip and then install TWRP KK287 zip
Then restore the 3.0.13 ROM
Files and directions here
http://forum.xda-developers.com/nabi-2/general/nabi-information-t3229119
aicjofs said:
Have you tried using "adb reboot-bootloader"
There are some things to try before breaking out nvflash. The easiest would be to flash the boot loader and a new TWRP in one recovery session.
Boot twrp2.2.21, Install KK boot loader zip and then install TWRP KK287 zip
Then restore the 3.0.13 ROM
Files and directions here
http://forum.xda-developers.com/nabi-2/general/nabi-information-t3229119
Click to expand...
Click to collapse
I did try ADB REBOOT-BOOTLOADER all that happens is the NABI2 restarts and sits at the logo screen.
I'm able to push via ADB, so I will download the suggested files and take your advice. I'll report back. And, thanks for the reply.
Update...
I was able to push all of the needed files and I verified I pushed them completely by using "adb push -p xxxxxx /sdcard"
I then rebooted back into TWRP
I flashed KK3013bootloader.zip, then flashed twrp-recovery-NV7AUS-287.zip
Rebooted and I can't get back into TWRP. And, now I can't establish a connection for adb commands.
Any advice? tips...pointers? Could this truly be my first bricked device??
hotspace said:
Update...
I was able to push all of the needed files and I verified I pushed them completely by using "adb push -p xxxxxx /sdcard"
I then rebooted back into TWRP
I flashed KK3013bootloader.zip, then flashed twrp-recovery-NV7AUS-287.zip
Rebooted and I can't get back into TWRP. And, now I can't establish a connection for adb commands.
Any advice? tips...pointers? Could this truly be my first bricked device??
Click to expand...
Click to collapse
Nah Nabi2 is practically impossible to brick.
So do you get the command list in the top left when you press the vol and power buttons? i.e the selection continue, fastboot, recovery kernel, forced recovery? or when you select recovery kernel it just doesn't boot TWRP?
I wont type a lot of stuff until I get you answer but if we need to go the nvflash route this is some good reading. You will need to get in to APX mode, install the driver and issue some commands.
Read this post and next few pages after it
http://forum.xda-developers.com/showpost.php?p=46579190&postcount=1687
General idea of commands
http://forum.xda-developers.com/showpost.php?p=48683262&postcount=124
Might be some work, but we should be able to get the device back, I'll let you know which is the best way after I see your reply.
Yup, no boot options. And, I can't get back into TWRP. I hold power button to shut it down. Then vol+ power and typically I'd get the boot options, but nothing, just the logo. Then hold power button to shut down. Continue...repeat...
I appreciate you sticking in for the long haul on this.
Sent from my SM-N920P using Tapatalk
hotspace said:
Yup, no boot options. And, I can't get back into TWRP. I hold power button to shut it down. Then vol+ power and typically I'd get the boot options, but nothing, just the logo. Then hold power button to shut down. Continue...repeat...
I appreciate you sticking in for the long haul on this.
Sent from my SM-N920P using Tapatalk
Click to expand...
Click to collapse
Damn. It IS going to be a long haul, but you will know the tablet well when its done. I don't have the tablet to test anymore, so I have to work from memory(and that's been a long time)
Well the bad news is this is going to require opening the tablet. See this post http://forum.xda-developers.com/showpost.php?p=46694284&postcount=1701
You are going to have to short those pins to get it in to APX mode and use nvflash
-You will need the APX driver as well.
-The nvflash package
http://forum.xda-developers.com/nabi-2/general/nabi-information-t3229119
I will type more later.
aicjofs said:
Damn. It IS going to be a long haul, but you will know the tablet well when its done. I don't have the tablet to test anymore, so I have to work from memory(and that's been a long time)
Well the bad news is this is going to require opening the tablet. See this post http://forum.xda-developers.com/showpost.php?p=46694284&postcount=1701
You are going to have to short those pins to get it in to APX mode and use nvflash
-You will need the APX driver as well.
-The nvflash package
http://forum.xda-developers.com/nabi-2/general/nabi-information-t3229119
I will type more later.
Click to expand...
Click to collapse
Sweet! Looking forward to this.
Sent from my SM-N920P using Tapatalk
hotspace said:
Sweet! Looking forward to this.
Sent from my SM-N920P using Tapatalk
Click to expand...
Click to collapse
Get the nvflash package from the Nabi General Info thread I linked above
Unzip in to a directory of your choosing and open a command prompt in that folder
The Nabi will be broken open and connected by USB to computer
So once you get those pins shorted and press the power button the screen should come on and be completely black(you can tell the backlight is on though)
Check in device manager for a new device(it will be auto detected or you will have to manually install APX driver)
Once the driver is installed you can issue nvflash commands
nvflash --bl bootloader.bin --download 4 bootloader.bin
Before pressing enter for the below command get ready to press and hold the vol+ key.
nvflash --resume --go
Right on. I'll dig into this in the morning
Sent from my SM-N920P using Tapatalk
@aicjofs, I still haven't begun breaking the Nabi down. I'm working from home today and should be able to squeeze the disassemble in sometime today.
I scanned through the comments you've left since finding out I wasn't able to get to the boot menu...I'll post back once I get it torn apart.
OK so I was on "HairyBean v2.31" and decided to try "CROMBi-kk". So I first flashed "TWRP-TF300T-2_7_0_1.zip" as instructed in the "CROMBi-kk" instructions. Then I flashed "CROMBi-kk" everything seemed to go fine but after reboot I was stuck at the "CROMBi-kk" boot animation. So I wanted to go back to "HairyBean v2.31" so flashed "Upgrade Hairybean 2.31 (4.2.1) Bootloader & TWRP (2.5).zip". When I got back to HairyBean TWRP I first tryed to Format DATA, well this got stuck and had no choice but to hard reboot. Now when I go back into TWRP I get a screen that asks for a password. I can hit cancel and get passed it, but I can't mount any of the partitions. So this is where in stuck. I do have an NVflash backup. Can someone please help me get out of this mess.
shatterstar78 said:
OK so I was on "HairyBean v2.31" and decided to try "CROMBi-kk". So I first flashed "TWRP-TF300T-2_7_0_1.zip" as instructed in the "CROMBi-kk" instructions. Then I flashed "CROMBi-kk" everything seemed to go fine but after reboot I was stuck at the "CROMBi-kk" boot animation. So I wanted to go back to "HairyBean v2.31" so flashed "Upgrade Hairybean 2.31 (4.2.1) Bootloader & TWRP (2.5).zip". When I got back to HairyBean TWRP I first tryed to Format DATA, well this got stuck and had no choice but to hard reboot. Now when I go back into TWRP I get a screen that asks for a password. I can hit cancel and get passed it, but I can't mount any of the partitions. So this is where in stuck. I do have an NVflash backup. Can someone please help me get out of this mess.
Click to expand...
Click to collapse
Try this:
Possible Unbrick Solution for Unrecoverable Bootloader & Wrong TWRP Flashes
If that doesn't work you'll have to recover through NVFlash backups.
Restorer said:
Try this:
Possible Unbrick Solution for Unrecoverable Bootloader & Wrong TWRP Flashes
If that doesn't work you'll have to recover through NVFlash backups.
Click to expand...
Click to collapse
Thanks i'll give that a try, but if that fails is their a guide on how to use NVflash to restore my backup? All I can find is how to backup using NVflash but nothing on restoring it.
shatterstar78 said:
Thanks i'll give that a try, but if that fails is their a guide on how to use NVflash to restore my backup? All I can find is how to backup using NVflash but nothing on restoring it.
Click to expand...
Click to collapse
There's plenty in these threads but read them right through carefully first. I've never bricked mine so I have no idea what problems you might encounter. The last two are older guides written before Flatline for JB but info is still relevant. Ignore any stuff about CWM or ROM Manager.
http://forum.xda-developers.com/showthread.php?t=2538028
http://rootzwiki.com/topic/35086-gu...s-guide-unbrickrecoverdowngradeupgrade-tf201/
Same guide but with XDA experiences:
http://forum.xda-developers.com/showthread.php?t=1927818&highlight=nvflash
Restorer said:
There's plenty in these threads but read them right through carefully first. I've never bricked mine so I have no idea what problems you might encounter. The last two are older guides written before Flatline for JB but info is still relevant. Ignore any stuff about CWM or ROM Manager.
http://forum.xda-developers.com/showthread.php?t=2538028
http://rootzwiki.com/topic/35086-gu...s-guide-unbrickrecoverdowngradeupgrade-tf201/
Same guide but with XDA experiences:
http://forum.xda-developers.com/showthread.php?t=1927818&highlight=nvflash
Click to expand...
Click to collapse
I can't tank you enough for your help in pointing me in the right direction. I'm now back up and running:good: The first guide got me close, but did not fully unbrick, so I got creative. I will list the steps I took to maybe help others out.
1. First you need Fastboot get it here(http://matthill.eu/content/downloads/transformerprime-unlock/fastboot.zip)
1b. You will need the Universal_Naked_Driver found here (http://matthill.eu/content/downloads/transformerprime-unlock/Universal_Naked_Driver_0.72.zip)
1c. Unzip the drivers somewhere, if at any point during this guide Windows detects your tablet as an unknown device, point it to this location for the drivers.
2. Unzip fastboot.zip somewhere preferably in C:\ (I found that folder names with spaces can cause problems)
3. Download the official update for your device from Asus. Make sure you get the right one, US, EU, WW, etc.
4. Unzip the update twice so that way you have a blob file.
5. Place the blob file into your fastboot folder.
6. Open a command prompt and navigate to your fastboot folder and enter the fallowing commands.
fastboot erase system
fastboot erase recovery
fastboot erase userdata
fastboot erase boot
fastboot erase misc
fastboot erase cache
This next command will take the longest. Also you will notice the green RCK icon will stop flashing and you will have a blue progress bar, This is normal. Do not run the last command(reboot) until the green RCK logo starts flashing again and the blue progress bar is full.
fastboot -i 0x0B05 flash system c:\fastboot\blob (your path may vary depending where you placed the fastboot folder)
Now that all is done run the last command.
fastboot -i 0x0B05 reboot
If you are back up and running congratulations you are unbricked, but if you are stuck at the white Asus logo follow the next additional steps. Only do this if you are not fully booting up after the first part of this guide.
1. You will need a microsd card(32G max) and has to be formatted to Fat32.
2. Next you are going to take the Asus update you downloaded above, and unzip it ONLY ONCE and rename it to EP201_SDUPDATE.zip
3. Place the newly renamed EP201_SDUPDATE.zip on your sdcard, make sure its on the root directory and not in a folder.
4. Now reboot to fastboot (Hold Power and Volume Down) Press Volume Up when the white text at the top appears.
5. When the fastboot menu comes up with RCK icon selected press Volume up.
6. Go have a beer, this will take some time. Do not touch anything, when it is done the Asus configuration wizard will be displayed.
7. Congratulations you are now hopefully fully unbricked.
Some Tips:
1. Make sure you have "Show File Extensions" enabled in Windows, if not then when you rename the update to "EP201_SDUPDATE.zip" it will actually be "EP201_SDUPDATE.zip.zip".
2. Use Windows 7 if possible, Windows 8 just causes problems.
3. Disable Windows UAC or run fastboot as administrator.
4. Use a stock OEM data cable.
5. Make sure you have a fully charged tablet, cant stress this enough if your battery dies during this process, then you are in some serious trouble.
Credit goes to Buster99 for discovering the first part of this guide.
Bricked my prime
Hello, I have a big problem. I am in the possession of a TF201 and wanted to install the slimkat-rom for the Tf201. I had the topical Bootloader with Harybean V2.31 installed.
Then I have the Recoery (form the Startpost of the rom) in my present Rocovery installed (Custom TWRP v2.7.1.0 JB/KK for TF300T [with device checking] | STABLE)
Afterwards I have restarted the device. Everything functioned perfectly... on it I have booted up in the Recovery. In it I made a Factory-Reset. This became not explained... the device approx. 1 hour got stuck.
On it there I have restarted the device by hand... now I have the problem that I do not come any more to the Recovery. The device hangs with the picture "Teamwin"... I can do nothing more....also i can not go into the fastboot mode!??? (with the volume down button)
I already tried the solution about abd...but in cmd (Windows) always comes the statement "waiting for device"
What have I wrong made... what I can make? Can somebody help me? Please....
sorry for my bad english, thanks
maze44 said:
Hello, I have a big problem. I am in the possession of a TF201 and wanted to install the slimkat-rom for the Tf201. I had the topical Bootloader with Harybean V2.31 installed.
Then I have the Recoery (form the Startpost of the rom) in my present Rocovery installed (Custom TWRP v2.7.1.0 JB/KK for TF300T [with device checking] | STABLE)
Afterwards I have restarted the device. Everything functioned perfectly... on it I have booted up in the Recovery. In it I made a Factory-Reset. This became not explained... the device approx. 1 hour got stuck.
On it there I have restarted the device by hand... now I have the problem that I do not come any more to the Recovery. The device hangs with the picture "Teamwin"... I can do nothing more....also i can not go into the fastboot mode!??? (with the volume down button)
I already tried the solution about abd...but in cmd (Windows) always comes the statement "waiting for device"
What have I wrong made... what I can make? Can somebody help me? Please....
sorry for my bad english, thanks
Click to expand...
Click to collapse
Did you do a NVflash backup before all of this happened? If you did you can follow this guide to unbrick http://forum.xda-developers.com/showthread.php?t=2538028
I think the problem is "TWRP v2.7.1.0". I'm going to look more into it to see if I can figure what the problem is.
Thank you so much for the instructions post above. If you figure out what went wrong with flashing that rom, I would like to know too.
dangoon said:
Thank you so much for the instructions post above. If you figure out what went wrong with flashing that rom, I would like to know too.
Click to expand...
Click to collapse
Well I made some progress, I figured out why I could not mount partitions. Turns out that when I hit "Format Data" and thought that it froze, well it did not freeze it just takes really long to finish(~30min). Now I can install it, but no matter what I try it all ways gets stuck at the 4 penguins on the latest version or the bootanimation on the older version. I have tried every combination of twrp recovery's, kernals and varies versions of the rom, but still no luck. I have tried probably every rom available for this tablet and this is the only rom that just refuses to install. From the sounds of some of the problems this rom has I really don't want to use it, but now im so pissed off that I have to figure out why the hell this thing is not working I just cant quit.
[UPDATE]
Ok got it all squared away. Everything all up and running. The second part of my problem (getting stuck at bootanimation) was caused by doing a factory reset before flashing. So the correct way to flash it is...
1. Make sure you are on the Hairy Bean Bootloader.
2. Make sure you are using a 2.7 TWRP.
3. First Format Data. (It will take long, about 30mins)
4. The go into Advanced Wipe and check everything except SDCard.
5. When it's finished reboot, If all went well you should only be at the bootanimation for about 5mins.
Also if you get the four penguins after reboot, then you did something wrong.
Perfect
Legthy, but OMG thank you very much,
thought I was screwed..
I had to do the second part as well, now I get the Asus Setup , to finalize .
Great work, Thanks again.
Madd Macc
Hi all,
Just followed the instructions below to get a new rom on my TF201.
Now I have Teamwin recovery booting showing V2.6.3.0 and asking for a password.
Teamwin does not show data in external or internal sdcards.
I am unable to get into fastboot mode, using power and vol down.
It has failed since running this line fastboot -i 0x0b05 flash recovery ne0zone75_tf300t.blob
I have all of the nvflash blobs etc.
Any ideas how to recover from this point?
Thanks
RR
This may help
Starting from a stock bootloader V 10.4.2.18
What you will need
Woking fastboot & adb / SDcard optional
TWRP for a 201 = twrp_tf201t.blob
@ne0zone75 TWRP for the 300 = ne0zone75_tf300t.blob
HairyBean BL & TWRP: This is effectively turn your 201 into a 300 <---- which is a flashable zip inside the zip that you downloasd
All 3 of the above file are in a zip in the Download section @ the top of every page of the thread ...... THIS ZIP IS NOT FLASHABLE...Your must unzip it to get to the real files !!! The name of this zip is 'upgrade_tf201_to_tf300t.zip'
CROMBI 201 ROM zip
A fully charged tablet
All the above files in the same directory as your fastboot.exe (if using windows) In your home folder on linux....
The process
Lets start with the TWRP recovery for the 201, let flash it with fastboot...
Power your tablet off and with the [ VOL DOWN & POWER ] buttons boot the tablet into the bootloader
Once there [ VOL DOWN ] untill the green box is on the USB ICON then [ VOL UP ] to select fastboot
Let make sure your PC can see your tablet with this command.
Code:
fastboot devices
Code:
fastboot -i 0x0b05 flash recovery twrp_tf201t.blob
Then
Code:
fastboot -i 0x0b05 reboot-bootloader
[ VOL UP ] ON RCK to enter recovery
Once in TWRP check to see if adb is working...
Code:
adb devices
Ok now that we know that is working let go ahead and push the HairyBean BL onto the tablet
Code:
adb push HairyBean_Bootloader_TWRP2.5.zip /sdcard
Now under the install tab in TWRP fine the folder and flash it....
reboot once it has fishined..If ask to install SuperUser say NO..........
LET THE BLUE BAR FILL !!!!!!!!! Once it has finished it will reboot into Hairybean TWRP....
Once booted into recovery, run this command to boot into fastboot
Code:
adb reboot-bootloader
You will see that the USB icon is missing now, this is good... If you still see the USB icon DON'T go to the next step
Now lets flash @ne0zone75 TWRP recovery
Code:
fastboot -i 0x0b05 flash recovery ne0zone75_tf300t.blob
Once that has finished let reboot into bootloader
Code:
fastboot -i 0x0b05 reboot-bootloader
Now enter recovery....
Make sure its verison 2.7.1.0
Go to Wipe////Format Data////Type yes
This can take up to 90 mins to format
DO NOT INTERRUPT THE FORMAT !!!!!!!
Now lets push CROMBI-KK onto your tab
Code:
adb push cm-11.0-2014xxxx-crombi-kk-tf201t.zip /sdcard
Find it under the install tab and flash it..
REBOOT into android, first boot can take up to 15 minutes
ADB interface working
Ok, lots of playing this morning tells me that the adb interface is working when the teamwin recovery is showing.
adb devices gives <number> recovery
Any ideas how to proceed from here, apart from carefully
RangeyRover1 said:
Ok, lots of playing this morning tells me that the adb interface is working when the teamwin recovery is showing.
adb devices gives <number> recovery
Any ideas how to proceed from here, apart from carefully
Click to expand...
Click to collapse
When on the twrp screen .....
Does the command .....
Code:
adb reboot-bootloader
Do anything ??
Thx Josh
Hello I was having a tough time trying to Flash Crombi KK rom. At 1 point I had to use a recovery blob because I was stuck. I started from there upgraded bootloader and twrp 2.5. Flashed twrp 2.8 and Crombi KK rom kept showing fail. I eventually gave up and tried to go from 2.8 TWRP back to 2.5 with JB Bootloader. Bad move I know. Whenever I pressed up to go to recovery it would get stuck. Then eventually I tried wiping data from Bootloader screen. Now the 3 options, recovery, coldboot and wipe data wont show. Stuck at Asus screen "The Device is Unlocked".
I downloaded naked drivers and android ADB drivers.. however I cannot get them to install on windows 7. I'd appreciate any help to try to this back running again
Lyvewire said:
Hello I was having a tough time trying to Flash Crombi KK rom. At 1 point I had to use a recovery blob because I was stuck. I started from there upgraded bootloader and twrp 2.5. Flashed twrp 2.8 and Crombi KK rom kept showing fail. I eventually gave up and tried to go from 2.8 TWRP back to 2.5 with JB Bootloader. Bad move I know. Whenever I pressed up to go to recovery it would get stuck. Then eventually I tried wiping data from Bootloader screen. Now the 3 options, recovery, coldboot and wipe data wont show. Stuck at Asus screen "The Device is Unlocked".
I downloaded naked drivers and android ADB drivers.. however I cannot get them to install on windows 7. I'd appreciate any help to try to this back running again
Click to expand...
Click to collapse
Do you have your nvflash blobs backed up ?
Thx Josh
lj50036 said:
Do you have your nvflash blobs backed up ?
Thx Josh
Click to expand...
Click to collapse
No blobs. I 've had this device since day one. Rooted it, bricked before but never this. I remember having a hard time making a NVFlashbackup for the same reason of my device showing up and eventually gave up. Any other suggestions?
Lyvewire said:
No blobs. I 've had this device since day one. Rooted it, bricked before but never this. I remember having a hard time making a NVFlashbackup for the same reason of my device showing up and eventually gave up. Any other suggestions?
Click to expand...
Click to collapse
No nvflash blob, no fastboot, no adb ....
There is nothing that can be done if the above statement is true ......
Thx Josh
lj50036 said:
No nvflash blob, no fastboot, no adb ....
There is nothing that can be done if the above statement is true ......
Thx Josh
Click to expand...
Click to collapse
Thanks for replying
I tried using this http://forum.xda-developers.com/showthread.php?t=2588979 to install ADB. It got to waiting for device and of course nothing. Is there something else needed to get the ADB to read the device? I downloaded the naked drivers as well but nothing showed up in device manager. No executable file to run. Am I missing something?
WooHoo
lj50036 said:
When on the twrp screen .....
Does the command .....
Code:
adb reboot-bootloader
Do anything ??
Thx Josh
Click to expand...
Click to collapse
Why, yes. yes it does Thanks.
Ok I have the RCK, Android,wipe data icons.
fastboot devices on this screen now gives <number> fastboot
Woot!
I'm keen to have specific instructions on how to recover from this point back to stock, then take a deep breath and try to get to custom.
My concern is that a lot of the threads with guidance for recovery and flashing are old, and I don't want to brick this thing.
So, is there a thread for recovery to stock from this point?
I have found this thread discussing recovery. http://forum.xda-developers.com/transformer-prime/help/guide-t2864946
am waiting for full charge of tablet at the moment.
Thanks for all the help so far.
RR
RangeyRover1 said:
Why, yes. yes it does Thanks.
Ok I have the RCK, Android,wipe data icons.
fastboot devices on this screen now gives <number> fastboot
Woot!
I'm keen to have specific instructions on how to recover from this point back to stock, then take a deep breath and try to get to custom.
My concern is that a lot of the threads with guidance for recovery and flashing are old, and I don't want to brick this thing.
So, is there a thread for recovery to stock from this point?
Thanks for all the help so far.
RR
Click to expand...
Click to collapse
You need the blob from the stock frimware downloaded from the Asus website ....
It will be in a zip file that needs unzipped twice ...... Make sure you get the correct 'SKU' for your tablet ......
Then follow this guide, skip to the first fastboot command and go from there .....
http://forum.xda-developers.com/showthread.php?t=2538028
Thx Josh
FIXED
lj50036 said:
You need the blob from the stock frimware downloaded from the Asus website ....
It will be in a zip file that needs unzipped twice ...... Make sure you get the correct 'SKU' for your tablet ......
Then follow this guide, skip to the first fastboot command and go from there .....
http://forum.xda-developers.com/showthread.php?t=2538028
Thx Josh
Click to expand...
Click to collapse
Thanks, thats got me back to square one.
Maybe a new thread detailing the pain to get to Custom rom!
Cheers Josh.
RR
tf300 update required?
Ok, i seem to be failing when i apply neowin tf300 update, when following the crombikk instructions on post #4. The system does not now boot into recovery. Is this step absolutely required for the newer roms?
Thanks
RR