[Q] Internal and SD Can't mount in CWM - Transformer TF300T Q&A, Help & Troubleshooting

Hi all.
Im having some problems with this, and was hoping that some one here could help me.
I have unlocked my device, no problems.
Then i have installed CWM, no problems.
Now here my problems begin... I have copied a custom ROM zip file, onto my tablet. When i boot my tablet into CWM i get some errors in the bottom of the screen looking like this:
E:Can't mount /cache/recovery/command
E:Can't mount /cache/recovery/log
E:Can't open /cache/recovery/log
E:Can't mount /cache/recovery/last_log
E:Can't open /cache/recovery/last_log
Now when i choose to "- Install zip from sdcard" and after that i choose "- Choose zip file from sdcard" i get this error: E:Can't mount /sdcard/
Then i try to select the "- Choose zip from internal storage" but then i get this error: E:Can't mount /emmc/
Basicly i cant do anything at all in CWM without getting errors, cant even whipe the cache or anything.
Can someone help me to find out what to do now. And hopefully how to solve this?
I can boot into my androind system without any problems.
Hope some one know's what to do. Thank you in advance.
Info:
TF300T
Android 4.2.1
Kernel 3.1.10-g6f31760
CWM-based Revovery v6.0.2.3
If there is anything else you need to know to be able to help me, please ask.
Have a good day.

CWM doesnt work with the 4.2 bootloader from ASUS. Only TWRP for bootloader 4.2 seems to work. You will have to flash TWRP 2.5.0.0-tf300t-4.2. Take note you need the TWRP version with the "-4.2" at the end. Flashing the incorrect TWRP version can brick your tablet.
Download http://techerrata.com/file/twrp2/tf300t/openrecovery-twrp-2.5.0.0-tf300t-4.2.blob.
Reboot tablet and hold volume down button while it's powering up to enter fastboot mode. Do not select any of the 3 icons (RCK, Android logo, Wipe Data) on tablet. Connect tablet to PC via USB cable.
On Windows PC, cmd window type:
fastboot -i 0x0B05 flash recovery openrecovery-twrp-2.5.0.0-tf300t-4.2.blob.
On tablet, wait until blue progress bar completely fills up.
On Windows PC, cmd window type:
fastboot reboot
That should replace your CWM with TWRP.

Hello ImmovableObject.
Thank you very much for you reply, that was excatly what was wrong.. Stupid me, not checking up on that. I actually flashed another version of TWRP, so i guess i was extreemly lucky that it did not brick my tablet.
But after i flashed the right TWRP its all good, everything is working as intented, and i can make backups and flash custom roms now. Thank you very much for your help
Have a good day all.

Jrod236 said:
Hello ImmovableObject.
Thank you very much for you reply, that was excatly what was wrong.. Stupid me, not checking up on that. I actually flashed another version of TWRP, so i guess i was extreemly lucky that it did not brick my tablet.
But after i flashed the right TWRP its all good, everything is working as intented, and i can make backups and flash custom roms now. Thank you very much for your help
Have a good day all.
Click to expand...
Click to collapse
You are very much welcomed! I'm glad it worked for you.

I found this useful when I was struggling with CWM as well, very glad I was careful to pick the 4.2 blob
Thanks for the help!

Holy Crap!
I can't believe how stupid I was! I ahve always despised CWM yet I was using it on my TF300T. After searching and searching for a fix I came onto this. Great job man!

THANK YOU FOR THIS!! I too stumbled around with CM Recovery for about 30 minutes, dumbfounded by the fact that it couldn't mount either the internal or external storage. I did some research and that's when I came across this post. I can't believe they don't make any mention in any of the tutorials that CM Recovery won't work with the newest 4.2 bootloader from Asus.

Your method did not work with my TF300T, Please assist
@ImmovableObject , I've tried your method but for some reason my Tablet did not reboot with the command "Fastboot reboot" and i still get CWM-based Recovery v6.0.2.3 for recovery instead of TWRP. it did say the flash was OKAY.
Please Please help
ImmovableObject said:
CWM doesnt work with the 4.2 bootloader from ASUS. Only TWRP for bootloader 4.2 seems to work. You will have to flash TWRP 2.5.0.0-tf300t-4.2. Take note you need the TWRP version with the "-4.2" at the end. Flashing the incorrect TWRP version can brick your tablet.
Download http://techerrata.com/file/twrp2/tf300t/openrecovery-twrp-2.5.0.0-tf300t-4.2.blob.
Reboot tablet and hold volume down button while it's powering up to enter fastboot mode. Do not select any of the 3 icons (RCK, Android logo, Wipe Data) on tablet. Connect tablet to PC via USB cable.
On Windows PC, cmd window type:
fastboot -i 0x0B05 flash recovery openrecovery-twrp-2.5.0.0-tf300t-4.2.blob.
On tablet, wait until blue progress bar completely fills up.
On Windows PC, cmd window type:
fastboot reboot
That should replace your CWM with TWRP.
Click to expand...
Click to collapse

mseck said:
@ImmovableObject , I've tried your method but for some reason my Tablet did not reboot with the command "Fastboot reboot" and i still get CWM-based Recovery v6.0.2.3 for recovery instead of TWRP. it did say the flash was OKAY.
Please Please help
Click to expand...
Click to collapse
That's strange.
Was your tablet running Android 4.2?
Try waiting a little longer (5 or more seconds) before issuing the "fastboot reboot" after the message that the flash was OKAY.
Things you could also try:
* Update your fastboot.exe to the latest version. You can do this via the Android SDK Manager on your computer. Fastboot is included under "Tools" > "Android SDK Platform-tools."
* Use a different USB cable.
* Connect cable to a different USB port on your computer.

ImmovableObject said:
CWM doesnt work with the 4.2 bootloader from ASUS. Only TWRP for bootloader 4.2 seems to work. You will have to flash TWRP 2.5.0.0-tf300t-4.2. Take note you need the TWRP version with the "-4.2" at the end. Flashing the incorrect TWRP version can brick your tablet.
Download http://techerrata.com/file/twrp2/tf300t/openrecovery-twrp-2.5.0.0-tf300t-4.2.blob.
Reboot tablet and hold volume down button while it's powering up to enter fastboot mode. Do not select any of the 3 icons (RCK, Android logo, Wipe Data) on tablet. Connect tablet to PC via USB cable.
On Windows PC, cmd window type:
fastboot -i 0x0B05 flash recovery openrecovery-twrp-2.5.0.0-tf300t-4.2.blob.
On tablet, wait until blue progress bar completely fills up.
On Windows PC, cmd window type:
fastboot reboot
That should replace your CWM with TWRP.
Click to expand...
Click to collapse
Thank you! Looking for days now. I installed TWRP 2.6 and CWM 5, 6 and touch. All the same problem. Flashed the TWRP from your link and everything works fine. Thank you

Raice.f4h said:
Thank you! Looking for days now. I installed TWRP 2.6 and CWM 5, 6 and touch. All the same problem. Flashed the TWRP from your link and everything works fine. Thank you
Click to expand...
Click to collapse
Hello.
I have TG300TG that only goes to CWM-based recovery v.6.0.1.3 and can not mount sd card. I've tried the mothod described here, but I can't get to fastboot mode. When I hold vol down it only goes to CWM again and again.

ImmovableObject said:
CWM doesnt work with the 4.2 bootloader from ASUS. Only TWRP for bootloader 4.2 seems to work. You will have to flash TWRP 2.5.0.0-tf300t-4.2. Take note you need the TWRP version with the "-4.2" at the end. Flashing the incorrect TWRP version can brick your tablet.
Reboot tablet and hold volume down button while it's powering up to enter fastboot mode. Do not select any of the 3 icons (RCK, Android logo, Wipe Data) on tablet. Connect tablet to PC via USB cable.
On Windows PC, cmd window type:
fastboot -i 0x0B05 flash recovery openrecovery-twrp-2.5.0.0-tf300t-4.2.blob.
On tablet, wait until blue progress bar completely fills up.
On Windows PC, cmd window type:
fastboot reboot
That should replace your CWM with TWRP.
Click to expand...
Click to collapse
Hello everyone.
I have same issue even with TWRP recovery 2.5.0.0
First of all when recovery starts i have a password request, don't know why but i press cancel and recovery starts normaly,
But when i select "install" i see internal storage (0 MB), nothing it's recognized into internal SD card.
I really need help for this issue, i'm in your hands guys :crying:
Device: TF300T
ROM: Asus Stock

ultimate_technologies said:
Hello.
I have TG300TG that only goes to CWM-based recovery v.6.0.1.3 and can not mount sd card. I've tried the mothod described here, but I can't get to fastboot mode. When I hold vol down it only goes to CWM again and again.
Click to expand...
Click to collapse
I have the same problem, to actually get back to the bootloader and select RCK or Android do this:
Once CMW is loaded open command and do
adb reboot-bootloader
that also enabled fastboot again but I'm still not able to load TWRP
---------- Post added at 01:50 AM ---------- Previous post was at 01:13 AM ----------
So just like the previous few posts I too installed CWM and I can't reflash TWRP.
Here's the output from the console:
D:\Android SDK\sdk\platform-tools>fastboot -i 0x0B05 flash recovery openrecovery
-twrp-2.5.0.0-tf300t-4.2.blob
sending 'recovery' (6448 KB)...
OKAY [ 2.699s]
writing 'recovery'...
OKAY [ 2.254s]
finished. total time: 4.955s
D:\Android SDK\sdk\platform-tools>fastboot devices
???????????? fastboot
D:\Android SDK\sdk\platform-tools>
Device is unresponsive to any commands and must be rebooted manually. Once I reboot the device loads to the CWM Recovery unless I run "adb reboot-bootloader" and then I can choose to boot the ROM. So at least it's not bricked.

Fix
Found this posted by buster.
So if you're TF300T is booting directly to recovery and you can't get to fastboot do what I post above:
1. Let recovery load
2. With recovery loaded you can now use adb. enter: adb reboot-bootloader
3. You should now be at the bootloader screen (RCK, Android, Wipe screen). Do this:
Originally Posted by Buster99 View Post
I have the same on my TF300t and A700 - but it seems i just managed to get my TF300t back
i tried all fastboot (reflashing recovery, boot, system etc) no dice - especially since writing system was done after 3 secs all the time.
Here how i restored my TF300T JB
download your appropriate lates firmware from Asus (WW, US etc.) and extract the zip twice so you have your blob file
install your device drivers if needed (i used Google SDK ones) (and as a Tip Win8 sucks for Fastboot stuff so try to get Win7 Vista XP for this)
Reset your device with a paperclip/needle (about 2 cm down of your sdcard slot) and hold vol-down to enter fastboot
(the folowing i did at least 10 times already but didn't erase misc)
fastboot -i 0x0B05 erase system
fastboot -i 0x0B05 erase recovery
fastboot -i 0x0B05 erase userdata
fastboot -i 0x0B05 erase boot
fastboot -i 0x0B05 erase misc
fastboot -i 0x0B05 erase cache
fastboot -i 0x0B05 flash system c:\adb\TF300t\blob (this is my path - your's may vary depending where you stored your blob) ((also this was the first time i saw the loading bar while flashing)*
fastboot -i 0x0B05 reboot
* it also took a lot longer as it should:
C:\>fastboot -i 0x0B05 flash system c:\adb\TF300t\blob
erasing 'system'...
OKAY [ 1.695s]
sending 'system' (800935 KB)...
OKAY [133.121s]
writing 'system'...
OKAY [153.973s]
finished. total time: 288.789s
im now setting my tab up to get back to CM (which initially caused this sh1theap due to autoupdate error, same as my A700 got bricked )
hope i could help you out!
cheers
-Buster
Click to expand...
Click to collapse
As Buster said
this was the first time i saw the loading bar while flashing
Click to expand...
Click to collapse
Before flashing I was not able to fastboot reboot-bootloader but this time I was.
Hope this helps

Many Thanks
Raice.f4h said:
Thank you! Looking for days now. I installed TWRP 2.6 and CWM 5, 6 and touch. All the same problem. Flashed the TWRP from your link and everything works fine. Thank you
Click to expand...
Click to collapse
All thanks for this thread, it solved my problem and now am rooted.
Again many thanks,
Gary

twpr is working
flashed twpr v2.5.0.0
works great so far, but it takes a little more time to load than cwm.

help!
right guys, I'm completely green when it comes to stuff like this so apologies if my questions are too daft.
I tried to root my tablet and forgot to back it up, tired few things I found online and got myself in a position where I can't use fastboot as my tablet is taking me to CWM recovery straight away and holding volume key and power makes no difference... any ideas? apart from throwing my table in a bin?

Related

[Q] A700 unable to boot into recovery after flashing cm10.1

Hi there,
thanks to this forum I was able to flash several HTC phones sucessfully, but today I got perfectly stranded.
The original android version (jelly bean) of the Acer A700 was 4.1.1.
The plan was to get root access and put on CyanogenMod cm-10.1.0-RC5-a700.zip
Here is what I did:
- unlock the booloader (fastboot oem unlock)
- getting root access using easyroot.bat
I checked root access via "rootchecker" and everything appeared to be fine.
- Installing ClockWorkMod Recovery
- Under "recovery" I selected the A700 and also flashed the touch version of CWM
I opened up CWM and selected "reboot into recovery"
The A700 did was it was told and I got the usual CWM menue and could see the
desired cm-10.1.0-RC5 on my SD card
So far I was impressed how simple everything went and carried on flashing the CM10.1.
Before I did so I made a backup of the actual ROM on my SD card, then I selected
"wipe cache" an started the flashing process from the SD card.
Everything went fine and after a short time the rotating CyanogenMod Logo appeared.
However, the logo keeps on spinning an nothing else happens any more (20+ minutes)
I powered off the device and tried it again with the same result.
I also tried to press [power] + [vol -] to boot into recovery.
Letting go the [power] button and keeping the [vol-] button pressed after the device
vibrates for the first time brings up only "bootloader version JB365b3d3 (unlock mode)"
but the second line "loading recovery kernel image" does not appear anymore
In other words pressing the keys will show no difference to a normal start procedure.
When I connect the A400 with my PC and type in "adb devices" I get its number but the comment "offline"
In short, I have no idea what I could have done wrong nor how to access the device again
Is there someone out who can help me? - Thanks a lot in advance!
Comming from stock ROM, You must do Factory Reset / Wipe ALL to boot properly CM 10.1
About ADB, you must upgrade your Android SDK/ADB tools to the latest version, ADB changed a little with Android 4.2.2
With adb working, you can launch
adb reboot recovery
It should work, then make factory reset, and try to boot
Thanks a lot for the very fats response ... to be honest I thought, questions like mine are unlikely to be answered (oh no, not another dung-head who bricked his device)
However, I downloaded the latest adb version (dated 2013-05-22) and tried it again, but without success.
I can apply [pwr] + [vol-] ... [lock] to bring it into fastboot download mode.
At least the A700 shows the following lines:
Bootloader: Version JB-652b3d3 (unlock mode)
Bootloader: Version JB-652b3d3 (unlock mode) Starting Fastboot USB download protocol
Having achies this I tried to re-flash the initilally installed but now missing CWM
fastboot flash recovery root/recovery-clockwork-touch-6.0.2.3-a700.img
sending 'recovery' (5018 KB)...
OKAY[ 1. 326s]
wriiting 'recovery' ...
OKAY[ 1.154s]
finished. total time: 2.480s
fastboot erase cache
*** Did you mean to fastboot format this partition?
erasing 'cache'...
OKAY[ 0. 406s]
finished. total time: 0.406s
fastboot reboot
rebooting ...
finished. total time: 0.016s
Having done this I expected the CWM to be again on the A700, but when I start with [pwr] + [vol-] the A700 still does not boot into recovery.
Again I get this:
Bootloader: Version JB-652b3d3 (unlock mode)
followed by the nevern ending spinning CM10.1 logo ...
Without the adb running I'm pretty hopeless ... does a factory reset change anything at this stage?
You can try
fastboot boot root/recovery-clockwork-touch-6.0.2.3-a700.img
to go in recovery
and then in CWM
wipe all/factory reset
flash CM 10.1 again
flash gapps
reboot
We are ariborne, Sir!
Ereasing all partitions and flashing CWM again did the trick
fastboot erase boot
fastboot erase cache
fastboot erase recovery
fastboot erase system
fastboot erase userdata
fastboot flash recovery recovery-clockwork-6.0.2.3-a700.img
To be honest I don't understand why could not boot into recovery before?!
However all appears to be fine again!
Thanks a lot!
same problem
Hello, i have the same problem. I tried to flash CM with CWM but I didnt factory reset so my device is stuck. And i dont know anything about Sdk and Adb, can someone please explain to me how to do it
P.S: my bootloader was already unlocked so im very new to skd bull****, i dont know anything
2 hours I'm looking for a solution and this thead save my life
thanks for advises
the way I took is by the erasing all and fastboot boot recovery.img and after I install the last CM11 by the sdcard slot
Thanks a lot I can go to sleep
:good::good:
:angel:

[Q] Softbricked Tf300t

Hi I have been reading a ton in the forums trying to figure out how to fix my tf300t. A few days ago I updated to the newest CM 10.1 nightly and when it restarted it was stuck at the Asus screen. So I have been able to hold vol down button and get to a screen that says
RCK Android [usb symbol] and Wipe Data
I have fastboot access and thought I would try to fix the problem myself by following instructions on another thread
"pyovue - If you have ADB access then unbricking it should be easy as you can push and edit any file on the system with it as well as fastboot? Or can ADB & Fastboot not mount (not just the sdcard) anything? If you don't care what happens to your tablet MB, then try this....
fastboot -i 0x0b05 erase system
fastboot -i 0x0b05 erase recovery
Then reboot (this should rid you of your bootloop to recovery and nothing should start)
Then download the stock ASUS Rom (from ASUS, look under Firmware)
Then try sending it with fastboot -i 0x0b05 flash system blob (you will have to extract two zips from the firmware files until you get to a file called "blob" then put it in your fastboot)
I almost guarantee if you have fastboot/adb working there is ALWAYS a way to fix it... only a hardbrick is impossible to fix.
"
I get cannot load 'blob' so I tried
fastboot -i 0x0B05 flash recovery recovery.img
seeing as I already had the recovery.img from when I first unlocked, rooted, and put cm 10.1 on it
please help I have no idea what to do and thank you in advance <3
musicfreak58 said:
Hi I have been reading a ton in the forums trying to figure out how to fix my tf300t. A few days ago I updated to the newest CM 10.1 nightly and when it restarted it was stuck at the Asus screen. So I have been able to hold vol down button and get to a screen that says
RCK Android [usb symbol] and Wipe Data
I have fastboot access and thought I would try to fix the problem myself by following instructions on another thread
"pyovue - If you have ADB access then unbricking it should be easy as you can push and edit any file on the system with it as well as fastboot? Or can ADB & Fastboot not mount (not just the sdcard) anything? If you don't care what happens to your tablet MB, then try this....
fastboot -i 0x0b05 erase system
fastboot -i 0x0b05 erase recovery
Then reboot (this should rid you of your bootloop to recovery and nothing should start)
Then download the stock ASUS Rom (from ASUS, look under Firmware)
Then try sending it with fastboot -i 0x0b05 flash system blob (you will have to extract two zips from the firmware files until you get to a file called "blob" then put it in your fastboot)
I almost guarantee if you have fastboot/adb working there is ALWAYS a way to fix it... only a hardbrick is impossible to fix.
"
I get cannot load 'blob' so I tried
fastboot -i 0x0B05 flash recovery recovery.img
seeing as I already had the recovery.img from when I first unlocked, rooted, and put cm 10.1 on it
please help I have no idea what to do and thank you in advance <3
Click to expand...
Click to collapse
What's the question again? If you have fastboot, you can always flash the system blob from your PC. Or you can push the rom (zip) to your internal storage, turn it off and on again. If you select rck on official recovery, it should look for the zip file on its own and proceed to flash it. If you have custom recovery, get to it and flash the same zip file. Make sure you have the right recovery for the rom though. Good luck.
Hi,
and we ansered this kind of prob 2 days ago here: http://forum.xda-developers.com/showthread.php?p=44244313
and yeah - my probs came from an error during cm update.
cheers
-Buster
Buster99 said:
Hi,
and we ansered this kind of prob 2 days ago here: http://forum.xda-developers.com/showthread.php?p=44244313
and yeah - my probs came from an error during cm update.
cheers
-Buster
Click to expand...
Click to collapse
It wouldn't load the blob but i followed that and found that link last night after posting I tried to delete this post but it just allows me to edit
Thanks

tablet only boots into twrp

My TF300T will only boot into TWRP. I also can't access any storage (failed to mount error) and adb sideloading fails everytime so I can't flash the stock rom. I tried using these commands:
adb shell mount -t tmpfs none /sdcard
adb push ROM.zip /sdcard
Which let me reach the .zip file it still failed to flash.
The tablet had Jellybean 4.2.2 installed. The TWRP version is 2.6.3.0.
How do I fix this?
Reboot it into bootloader menu. If holding volume down and power buttons doesn't work try 'adb reboot bootloader' command while tablet in twrp. Then flash rom through fastboot.
Graiden05 said:
Reboot it into bootloader menu. If holding volume down and power buttons doesn't work try 'adb reboot bootloader' command while tablet in twrp. Then flash rom through fastboot.
Click to expand...
Click to collapse
Now I can get to fastboot, but if I try to flash anything the cmd window says it worked but all it really does is freeze the tablet.
dewdrop623 said:
Now I can get to fastboot, but if I try to flash anything the cmd window says it worked but all it really does is freeze the tablet.
Click to expand...
Click to collapse
Did You flash rom or recovery? And does blue progressbar appears?
Graiden05 said:
Did You flash rom or recovery? And does blue progressbar appears?
Click to expand...
Click to collapse
I was able to flash cwm recovery. So now instead of booting into twrm everytime I get stuck on the splash screen. That didn't really change anything
I tried fastboot -i 0x0b05 flash system boot.blob (the .blob file from the stock rom), and I got the blue progress bar then rebooted but I'm still stuck on the first splash screen.
You do it wrong. So if Your last working firmware was 4.2 You need download this rom from asus webpage. Then unzip it twice and You get blob file. Then flash it with 'fastboot -i 0x0b05 flash staging blob' command.
Graiden05 said:
You do it wrong. So if Your last working firmware was 4.2 You need download this rom from asus webpage. Then unzip it twice and You get blob file. Then flash it with 'fastboot -i 0x0b05 flash staging blob' command.
Click to expand...
Click to collapse
Thanks. That worked. However now I'm only back where I started. CWM give can't mount error and can't reach a zip file. ADB sideload doesn't work either(failed to write data 'protocol fault (no status)'). I tried TWRP once and that's the reason I had to post hear in the first place.
dewdrop623 said:
Thanks. That worked. However now I'm only back where I started. CWM give can't mount error and can't reach a zip file. ADB sideload doesn't work either(failed to write data 'protocol fault (no status)'). I tried TWRP once and that's the reason I had to post hear in the first place.
Click to expand...
Click to collapse
Did You try only TWRP v2.6.3.0? I use v2.5.0.0 and its work fine. About CWM: flatline cwm for 4.2 bootloader was created with purpose do nvflash backup, so may be here is the cause of not working others functions.
Graiden05 said:
Did You try only TWRP v2.6.3.0? I use v2.5.0.0 and its work fine. About CWM: flatline cwm for 4.2 bootloader was created with purpose do nvflash backup, so may be here is the cause of not working others functions.
Click to expand...
Click to collapse
Success. Thanks for the help.

Unable to boot into recovery menu

Hey I just got a tf300 for cheap and decided to put a rom on it. I got twrp installed and got root access. The version of twrp was too old and when I updated it and got into twrp I was prompted for a password. I figured something was wrong with the version of twrp I installed and I could go go back to the previous version of twrp by using fastboot but I am unable to get into fast boot.
I hold power and volume down but it boots right into twrp. I'm not able to get it to boot normally either it just boots into twrp. Has anybody run into this or have any ideas why I can't get power + volume down to bring up the recovery menu?
EDIT: Oh and adb doesn't see any devices either.
EDIT #2: It seems that my pc kind of recognizes that something is installed. It shows up on Device Manager as "Transformer" with the yellow exclamation point. I haven't been able to find any drivers that work with it. Anyone have a link?
EDIT #3: Ok I forced the universal naked drivers to install and adb devices now shows tf300 in recovery. When I put in adb reboot bootloader it comes up with the rck android and wipe data. I used fastboot to load my original twrp blob that was working fine. I get:
I:\tf300>fastboot -i 0x0b05 f
sending 'recovery' (6448 KB).
OKAY [ 1.895s]
writing 'recovery'...
OKAY [ 2.862s]
finished. total time: 4.757s
But when I go into recovery its still the version of twrp that was causing issues and it still asks for a password.
I figured i'd do a fastboot erase of boot, cache, recovery, system, userdata and then fastboot the original twrp blob but I get:
I:\tf300>fastboot erase boot
< waiting for device >
EDIT #4: It seems that adb recognizes by device but fastboot does not. Entering fastboot devices returns blank. Anyone know if this is an issue with the driver?
Anyone?
Ok after a couple of hours of hair pulling I figured it out.
Fastboot was definitely not working witht tf300 due to drivers. Since I couldn't find any drivers for windows. I booted up my trusty linux server, installed android-tools-fastboot and voila sudo fastboot devices shows the tf300t.
Reloading twrp did not work so I tried formatting the partitions by doing the following:
fastboot erase system
fastboot erase recovery
fastboot erase userdata
fastboot erase boot
fastboot erase misc (The first couple of times I did this, I missed this one which caused bootloader to hang when installing twrp)
fastboot erase cache
I then installed the working version of twrp I had originally by:
fastboot –i 0x0b05 flash recovery twrp.blob
I then rebooted into recovery and twrp works great without any password prompt or errors that it could not access the partitions.
I user twrp to flash 2.7.01 version of twrp and rebooted, I then used twrp to flash CM11 snapshot M7 and gapps, cleared cache and davlik and then rebooted.
The CM spinning animation took a while but then it booted into CM.
The topics I got all this info from are too numerous to mention. I hope this helps anyone that has ran into the same situation.

[A700] Booting failed

Hi to XDA comunity
... and happy festive season
I tried to install a new ROM. So, I followed tutorials and I have a huge problem
I passed to unlock the tablet
But, when I tried to install the new Recovery, the installation failed and now, the tablet doesn't want to boot
When I boot normaly, in recovery mode or Fastboot mode, I get this message :
Code:
Bootloader Version JB-653b3d3 (Unlock Mode)
Entering boot menu mode
Booting failed
Bootloader VJB-653b3d3(UnlockMode): Starting Fastboot USB download protocol
When I send "Fastboot device", the device is shown
When I send "Fastboot flash recovery twrp-2.6.3.0_a700.img"
Code:
sending 'recovert' <5736 KB>...
But still indefinitely
So I stop and retry and I obtain
downloading 'boot.img'...
FAILED <commande write failed <Unknow error>>
finished. total time: 0.???s
i tried to erase recovery and retry.
Tried with several USB cables.
I don't know what to do...
I guess it's a fastboot problem ? How can I found a fastboot file ?
Thanks for any help !
grimnnir said:
Hi to XDA comunity
... and happy festive season
I tried to install a new ROM. So, I followed tutorials and I have a huge problem
I passed to unlock the tablet
But, when I tried to install the new Recovery, the installation failed and now, the tablet doesn't want to boot
When I boot normaly, in recovery mode or Fastboot mode, I get this message :
Code:
Bootloader Version JB-653b3d3 (Unlock Mode)
Entering boot menu mode
Booting failed
Bootloader VJB-653b3d3(UnlockMode): Starting Fastboot USB download protocol
When I send "Fastboot device", the device is shown
When I send "Fastboot flash recovery twrp-2.6.3.0_a700.img"
Code:
sending 'recovert' <5736 KB>...
But still indefinitely
So I stop and retry and I obtain
downloading 'boot.img'...
FAILED <commande write failed <Unknow error>>
finished. total time: 0.???s
i tried to erase recovery and retry.
Tried with several USB cables.
I don't know what to do...
I guess it's a fastboot problem ? How can I found a fastboot file ?
Thanks for any help !
Click to expand...
Click to collapse
make sure you have the a700 and not the a701 or a510 etc etc....
also, you could try booting directly into fastboot:
1. power off
2. hold power and volume down, while you're doing that, constantly change the rotation switch from lock unlock lock unlock.... keep doing it for about 5 seconds
try flashing from here... it might give you the same result but worth a try.
other possible problems:
1. the recovery you downloaded is corrupt
2. the recovery you downloaded was not a working version
3. you might not have the right usb drivers installed
4. you might have used the wrong recovery commands
5. command (sometimes) needs to be Run as Administrator on Windows (right click)
6. you might have waited too long to reboot to recovery, or used the wrong method to do it
it might make it easier for you if you just rename recovery on computer to recovery.img (so you can just type fastboot flash recovery recovery.img)
also, I have uploaded a copy of the recovery I'm using (it's newer)
you can also try (while in fastboot)
Code:
fastboot boot twrp.img
(or any custom recovery)
It should boot without flashing, and from there you're will be able to flash firmware, ROM, etc...
Shreps said:
you can also try (while in fastboot)
Code:
fastboot boot twrp.img
(or any custom recovery)
It should boot without flashing, and from there you're will be able to flash firmware, ROM, etc...
Click to expand...
Click to collapse
it might be fine but personally I would not try that... recovery and boot are not to be confused and bootloaders are not to be messed with

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