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[Q] Asus TF300T Does Not Start Because Of The Clockwork Recovery

Tablet: ASUS TF300T, Unlocked.
SO: Cyanogen 10
Old (working) Recovery ROM: “recovery-jb.img”
New (NOT working) Recovery ROM: “recovery-clockwork-5.5.0.4-tf300t.img”
Keys combination don’t work, just the APX one.
Symptom: the cyanogen didn’t work well so I changed the recovery ROM. As the new Recovery locks when executing from the bootloader, I decided to restart in recovery directly from the cyanogen (power button –>Reset -> Reset into Recovery). VERY BAD IDEA: Now the tablet always tries to start in recovery and gets stuck on the start screen. I can only enter the APX with keys combination. I cant enter boot loader and ATX doesn’t recognize fastboot & adb instructions.

Hi, I believe cyanogen 10 uses a jellybean bootloader and CWM 5.5.0.4 is for an ICS bootloader, so you will need to flash CWM 6.0.2.3 which is for jellybean bootloader.
Have a look at link below and download 'recovery-jb.img' & follow the how to flash.
http://forum.xda-developers.com/showthread.php?t=1668173
Hope this helps.

santdiego said:
Hi!
I have cyanogen 10 installed, but I tried to change my Tf300T Clockwork Recovery with this rom: "recovery-clockwork-5.5.0.4-tf300t.img"
Click to expand...
Click to collapse
Why?

pjc21 said:
Hi, I believe cyanogen 10 uses a jellybean bootloader and CWM 5.5.0.4 is for an ICS bootloader, so you will need to flash CWM 6.0.2.3 which is for jellybean bootloader.
Have a look at link below and download 'recovery-jb.img' & follow the how to flash.
http://forum.xda-developers.com/showthread.php?t=1668173
Hope this helps.
Click to expand...
Click to collapse
Hi! the problem is that I am stuck in the first screen when I turn on the tablet. The keys don't respond, the USB dont work , I cant go into bootloader and cyanogen dont start. It is just in the first screen since it try to boot from recovery always.

NixZero said:
Why?
Click to expand...
Click to collapse
My cyanogen didn't work fine. When I saw this article I thought that maybe I had installed a wrong ROM so i change it with the instructive one.... bad idea...

Have a look here
http://forum.xda-developers.com/showthread.php?t=2034866

pjc21 said:
Have a look here
http://forum.xda-developers.com/showthread.php?t=2034866
Click to expand...
Click to collapse
I think it goes into APX mode, holding "vol +", the screen remains off but the USB recognizes the APX. What should I do at this point to re install the ROM CWM or enter bootloader? when I go out the APX mode all remains the same, the tablet is still stuck .

Ok I no expert here so anyone else please correct me if I'm wrong.
When you say the USB recognizes APK, do you mean (assuming your running windows) that you can see your tab in device manager - something like 'Asus Android Device - Asus Android Bootloader Interface'
If so try this, open cmd (I always run as admin, don't know if it makes a difference) navigate to your /android-sdk/platform-tools and type
'fastboot -i 0x0B05 device' and hopefully you will get a response about your device (tab). If you do I would assume you could then flash recovery, ie put recovery-jb.img in your platform-tools folder and in cmd type 'fastboot -i 0x0B05 flash recovery recovery-jb.img' once done type 'fastboot -i 0x0B05 reboot' and hopefully all will be good, you may then need to reflash you rom not sure.
If your tab does not show in device manager then I have no idea sorry.
Hope this helps.

pjc21 said:
Ok I no expert here so anyone else please correct me if I'm wrong.
When you say the USB recognizes APK, do you mean (assuming your running windows) that you can see your tab in device manager - something like 'Asus Android Device - Asus Android Bootloader Interface'
If so try this, open cmd (I always run as admin, don't know if it makes a difference) navigate to your /android-sdk/platform-tools and type
'fastboot -i 0x0B05 device' and hopefully you will get a response about your device (tab). If you do I would assume you could then flash recovery, ie put recovery-jb.img in your platform-tools folder and in cmd type 'fastboot -i 0x0B05 flash recovery recovery-jb.img' once done type 'fastboot -i 0x0B05 reboot' and hopefully all will be good, you may then need to reflash you rom not sure.
If your tab does not show in device manager then I have no idea sorry.
Hope this helps.
Click to expand...
Click to collapse
Hi! thx for your help. fastboot and adb don't recognize the tablet in APX mode. My PC recognize APX mode. I installed the drivers for APX and I have nvflash ready to work, but it seems to be useless without access to fastboot.

pjc21 said:
'fastboot -i 0x0B05 device'
Hope this helps.
Click to expand...
Click to collapse
respond "< waiting for device >"

You have to wait for NVflash for JB bootloader.

Hazard17 said:
You have to wait for NVflash for JB bootloader.
Click to expand...
Click to collapse
Hi I have NVflash from here: http://androidroot.mobi/t3_nvflash/ butt this method also use fastboot and i cant access to it.

Hi, sorry to say after alot of searching and reading looks like the only soluation is to send it to Asus for repair.

[q] help please!!!!!

I just got my new asus transformer tf300t-bl and wanted to root and install either twrp or cwm on it,I unlocked it and when i went to reboot it i hit the volume up on the RCK and now its stuck on RCK and it didnt boot into the usb like it says it will on the forums. Now when i reboot it,it says " key driver not found.. booting os android cardhu-user bootloader < 1.00 e> released by "us_epad-10.6.1.8-20130225" a03 starting Fastboot usb download protocol. does anyone know what i can do? i would greatly appreciate ANYONES HELP THAT KNOWS IF THEY'VE DONE THIS TO THEIRS AND IF THIS IS FIXABLE. I USE THIS FOR COLLEGE AND JUST PAID $ 400 and cant afford to buy another one. Somebody please tell me i havent screwed the pooch and that it still can be flashed into recovery and rooted. Thanks you guys. As i rooted and flashed my transform ultra perfectly because of you guys and used the megatron 6 and love it.

No you haven't you need to download fastboot and connect the tablet to your computer, on that screen just let it sit their.
Download the asus firmware. Follow the flashing fastboot guides here. You need to flash the blob file.

flashing recovery/ ref: help me
sevenalive said:
No you haven't you need to download fastboot and connect the tablet to your computer, on that screen just let it sit their.
Download the asus firmware. Follow the flashing fastboot guides here. You need to flash the blob file.
Click to expand...
Click to collapse
im a lil new to doing this so would you please give me a detailed list of exactly what to do. and what firmware do i need to download from asus. And can all of this be done using a mac? and how do i flash it all to my comp. or from it to the tablet.

It should help you :https://www.google.pl/webhp?sourcei....r_qf.&bvm=bv.43828540,d.ZWU&biw=1274&bih=856

need your help plz
Hazard17 said:
It should help you :https://www.google.pl/webhp?sourcei....r_qf.&bvm=bv.43828540,d.ZWU&biw=1274&bih=856
Click to expand...
Click to collapse
i did everything it stated to do and when i get to the last steps to root my tf300t, it says adb cannot run as root in production builds. Im at a loss as to what to do at all. IM a noob, and i follow each command on terminal perfectly and everything executes till the last or itll say permission denied. What do i do or am i doing wrong. Im following the instructions of post forum.xda-developers.com/showthread.php?t=1720980

Hi, I have the exact same error message after installing the latest firmware from asus (ww_epad-10.6.1.8-20130225) and flashing cwm recovery.
Flashing via fastboot works fine and I have already reflashed the blob file and reflashed cwm recovery. still the same issue: "Key driver not found" and upon chosing entering RCK it freezes. OS boots fine, no issue here. Any clues? Should I flash the stock kernel from Asus?

re: help me
philmg said:
Hi, I have the exact same error message after installing the latest firmware from asus (ww_epad-10.6.1.8-20130225) and flashing cwm recovery.
Flashing via fastboot works fine and I have already reflashed the blob file and reflashed cwm recovery. still the same issue: "Key driver not found" and upon chosing entering RCK it freezes. OS boots fine, no issue here. Any clues? Should I flash the stock kernel from Asus?
Click to expand...
Click to collapse
how did you flash fastboot and cwm and reflashed the blob files to your asus? on my terminal on my mac itll say cant execute root on production models and requests a password. Have you had the same problems? can u give me a step by step how u flashed cwm and fastboot and the blob files. and how did you install the latest firmware

420Misfit said:
how did you flash fastboot and cwm and reflashed the blob files to your asus? on my terminal on my mac itll say cant execute root on production models and requests a password. Have you had the same problems? can u give me a step by step how u flashed cwm and fastboot and the blob files. and how did you install the latest firmware
Click to expand...
Click to collapse
well, I am using a win xp machine for fastboot. so I don't have the same issues. fastboot works fine, so that I use the normal fastboot process to flash the system and the recovery kernel.
I finally got it to work again by flashing the newest TWRP instead of CWM. It seems CWM does not yet work on the latest firmware.
I followed this guide for flashing TWRP with fastboot. This version actually also just asked me, if I want to root the device, I clicked yes and it was rooted. Perfect.
http://forum.xda-developers.com/showthread.php?t=2187982

philmg said:
Hi, I have the exact same error message after installing the latest firmware from asus (ww_epad-10.6.1.8-20130225) and flashing cwm recovery.
Flashing via fastboot works fine and I have already reflashed the blob file and reflashed cwm recovery. still the same issue: "Key driver not found" and upon chosing entering RCK it freezes. OS boots fine, no issue here. Any clues? Should I flash the stock kernel from Asus?
Click to expand...
Click to collapse
I am in EXACTLY the same boat as you. The only difference is that I flashed TWRP instead of CWM. I finally decided that it was time to root my tablet...got tired of the lag. IIRC I've gotten the "key driver not found.. booting OS" error message since doing the OTA update to 4.2 (I did this prior to rooting.) Everything SEEMS to be working okay, but this bugs the heck outta me, and I'm sure it can't be a good thing. Hoping somebody will chime in with a fix for this. I've searched and searched to no avail.

Asus tf300t(g) boot loop and stuck in TWRP wont mount, not recognized. - briked

hello
I have an asus tf300tg and I did update to 4.2.1 JB. bootloader was unlocked before the update. Tablets started ok then I put TWRP 2.5.0 but it seemed like something was not working well because I could not see external sd card when I tried to give you wipe from TWRP, but said faild. I rebooted the tablet I entered fastboot and in this mode shows, three icons. RTK, android, and wipe again. And naturally I did wipe once, then never turned on.
Now bootloader is unlocked and starts straight into TWRP.
At first my pc (win7 64bit) Recognize that "transformes" then I searched and found "Naked drivers 0.72" in the idea of ​​connecting the tablet in fastboot and write something-anything but I DON'T HAVE SUCCES.
I installed in various ways (asus adb, google adb) of naked driver but I could not communicate via fastboot. Maybe I don't chose the right way
Does anyone else have a procedure that can be repaired?
And that since the corect connection mode that allows me to write on tablet via fastboot ?
I saw that the problem occurs in many places and forums (like here: http://www.teamw.in/project/twrp2/97 Note the comments) but I dont found a solutions.
BR
Mihnea
I wait with many interes your sugestions.

Wrong forum, this needs to be in Q&A!
You need to find the 4.2.2 patched version of twrp and flash it via fastboot.

JoinTheRealms said:
Wrong forum, this needs to be in Q&A!
You need to find the 4.2.2 patched version of twrp and flash it via fastboot.
Click to expand...
Click to collapse
Thx for answer.. OK I WIILL WAIT until apear 4.2.2.pached version of twrp.
BR
MIhnea

[Q] Killed Fastboot??

I tried GOOMANAGER but wasn't rooted and I think that might have screwed up my Fastboot possibly....when I try to do boot into recovery now and select the RCK option I get the dead / sick droid and it says error every time. I don't know what to do now! Any ideas? I also tried to downgrade from 10.6.1.14.10 to 10.6.1.14.8 so I can root and install TWRP and ROMS, but need to get into recovery to do that. I cannot get into Fastboot / recovery to load stuff!!! HELP!!!!!!!!

TerrorTodd said:
I tried GOOMANAGER but wasn't rooted and I think that might have screwed up my Fastboot possibly....when I try to do boot into recovery now and select the RCK option I get the dead / sick droid and it says error every time. I don't know what to do now! Any ideas? I also tried to downgrade from 10.6.1.14.10 to 10.6.1.14.8 so I can root and install TWRP and ROMS, but need to get into recovery to do that. I cannot get into Fastboot / recovery to load stuff!!! HELP!!!!!!!!
Click to expand...
Click to collapse
You are aready in the fastboot mode when you are in the bootloader menu. Look on the upper left corner, you will see the fastboot is active...

LetMeKnow said:
You are aready in the fastboot mode when you are in the bootloader menu. Look on the upper left corner, you will see the fastboot is active...
Click to expand...
Click to collapse
Ok, but I can't do anything from there can I? Don't I have to select one of the three options? RDK Android or Wipe? RDK is what allows you to load zips right? I can not load that it gives me the dead android...

TerrorTodd said:
Ok, but I can't do anything from there can I? Don't I have to select one of the three options? RDK Android or Wipe? RDK is what allows you to load zips right? I can not load that it gives me the dead android...
Click to expand...
Click to collapse
Yes, you can fastboot your custom recovery. Can you tell me what you intend to do with your device? Your rom, kernel, and version?

LetMeKnow said:
Yes, you can fastboot your custom recovery. Can you tell me what you intend to do with your device? Your rom, kernel, and version?
Click to expand...
Click to collapse
I've unlocked the bootloader and I wanted to root it. I'd like to put a custom recovery TWRP and custom ROM probably CM 10.1 or something like that. Currently I'm running stock ROM build JOP40D.US_epad- 10.6.1.14.10-2-13-8-1. (I understand this build is not rootable so I was going to either downgrade or try to load a custom ROM) Kernel version 3.1.10-gb1a9af5 [email protected] #1
When I get to the fastboot menu there are the three options to chose from and when I select the RCK I get the dead droid with error underneath every time. So I have been unable to load anything.

TerrorTodd said:
I've unlocked the bootloader and I wanted to root it. I'd like to put a custom recovery TWRP and custom ROM probably CM 10.1 or something like that. Currently I'm running stock ROM build JOP40D.US_epad- 10.6.1.14.10-2-13-8-1. (I understand this build is not rootable so I was going to either downgrade or try to load a custom ROM) Kernel version 3.1.10-gb1a9af5 [email protected] #1
When I get to the fastboot menu there are the three options to chose from and when I select the RCK I get the dead droid with error underneath every time. So I have been unable to load anything.
Click to expand...
Click to collapse
The dead adroid is the stock recovery. There are two option for you to install the custome recovery.
1. Downgrade your firmware version and use motochopper to get root before using goo
2. Use fastboot to install your custome recovery
Read this thread: http://forum.xda-developers.com/showthread.php?t=2252563
The last few pages have an instruction and link to use fastboot.... Good luck..

and itightu
LetMeKnow said:
The dead adroid is the stock recovery. There are two option for you to install the custome recovery.
1. Downgrade your firmware version and use motochopper to get root before using goo
2. Use fastboot to install your custome recovery
Read this thread: http://forum.xda-developers.com/showthread.php?t=2252563
The last few pages have an instruction and link to use fastboot.... Good luck..
Click to expand...
Click to collapse
Thanks. I'll have to find that. I think that is the main problem for me. I don't think I'm doing the Fastboot thing correctly. Thanks I'll check it out tonight for sure!!

TerrorTodd said:
Thanks. I'll have to find that. I think that is the main problem for me. I don't think I'm doing the Fastboot thing correctly. Thanks I'll check it out tonight for sure!!
Click to expand...
Click to collapse
Ok Scott's too rebooted the machine into Fastboot and the USB Driver is not recognized. I have downloaded the USB drivers from ASUS Sync program and unstalled Sync.
In the top corner it says:
Key driver not found...Booting OS
Android cardhu-user bootloader <1.00 e> released by "US_epad-10.6.1.14.10-20130801" A03
Starting Fastboot USB download protocol
The options at the boot menu are RCK ANDROID WIPE DATA
Not sure how to get the drivers to recognize....without that I'm dead in the water...any thoughts?? I thought for sure that the ones from ASUS would do the trick....
Should I have other menu options at Fastboot?

TerrorTodd said:
Ok Scott's too rebooted the machine into Fastboot and the USB Driver is not recognized. I have downloaded the USB drivers from ASUS Sync program and unstalled Sync.
In the top corner it says:
Key driver not found...Booting OS
Android cardhu-user bootloader <1.00 e> released by "US_epad-10.6.1.14.10-20130801" A03
Starting Fastboot USB download protocol
The options at the boot menu are RCK ANDROID WIPE DATA
Not sure how to get the drivers to recognize....without that I'm dead in the water...any thoughts?? I thought for sure that the ones from ASUS would do the trick....
Should I have other menu options at Fastboot?
Click to expand...
Click to collapse
You are already in the fastboot mode. If you have downloaded scott recovery, you can start using it.

LetMeKnow said:
You are already in the fastboot mode. If you have downloaded scott recovery, you can start using it.
Click to expand...
Click to collapse
But I cannot as the USB does not recognize the device when it goes into fastboot. Works fine when in normal operation I can access the tablet through the USB, but in fastboot it does not recognize it. Can't seem to find a solution all USB drivers I have loaded do not work. Updating the drivers from the window on PC that opens does not work. UGH!!!!!!

TerrorTodd said:
But I cannot as the USB does not recognize the device when it goes into fastboot. Works fine when in normal operation I can access the tablet through the USB, but in fastboot it does not recognize it. Can't seem to find a solution all USB drivers I have loaded do not work. Updating the drivers from the window on PC that opens does not work. UGH!!!!!!
Click to expand...
Click to collapse
Can you explain how you do it? You may miss a step or something..

LetMeKnow said:
Can you explain how you do it? You may miss a step or something..
Click to expand...
Click to collapse
I followed this to the "T"
This is the summary from the Scott post:
1. Download the "install recovery.zip" from the above link
2. Extract it some where on your computer, prefer in the document folder
3. Check and make sure that the "USB debugging" is ticked on your device under the developer option menu
4. Download the TWRP 2.6.1.0.blob file from here: http://techerrata.com/browse/twrp2/tf700t
5. Rename it to "recovery.blob" and put it in same folder with all the fastboot files so that you can use Scott's script
6. Double click on the Scott's script or bat file and follow the instructions on the screen until you see the phrase says "write is okay or completed"
7. When it is finished, you can now reboot your device, done..
When it reboots it will not load drivers and I cannot access the tablet / fastboot.
It shows this at fastboot and I cannot do anything. Happens with script and if I manually do it. I can't use fastboot no matter what I try the USB drivers do not recognize the tablet.
Key driver not found...Booting OS
Android cardhu-user bootloader <1.00 e> released by "US_epad-10.6.1.14.10-20130801" A03
Starting Fastboot USB download protocol
The options at the boot menu are RCK ANDROID WIPE DATA

TerrorTodd said:
I followed this to the "T"
This is the summary from the Scott post:
1. Download the "install recovery.zip" from the above link
2. Extract it some where on your computer, prefer in the document folder
3. Check and make sure that the "USB debugging" is ticked on your device under the developer option menu
4. Download the TWRP 2.6.1.0.blob file from here: http://techerrata.com/browse/twrp2/tf700t
5. Rename it to "recovery.blob" and put it in same folder with all the fastboot files so that you can use Scott's script
6. Double click on the Scott's script or bat file and follow the instructions on the screen until you see the phrase says "write is okay or completed"
7. When it is finished, you can now reboot your device, done..
When it reboots it will not load drivers and I cannot access the tablet / fastboot.
It shows this at fastboot and I cannot do anything. Happens with script and if I manually do it. I can't use fastboot no matter what I try the USB drivers do not recognize the tablet.
Key driver not found...Booting OS
Android cardhu-user bootloader <1.00 e> released by "US_epad-10.6.1.14.10-20130801" A03
Starting Fastboot USB download protocol
The options at the boot menu are RCK ANDROID WIPE DATA
Click to expand...
Click to collapse
You can try to use the window prompt to change the directory to the fastboot.exe folder and type this command to see if you can get to your recovery: fastboot reboot-recovery or fastboot reboot recovery

LetMeKnow said:
You can try to use the window prompt to change the directory to the fastboot.exe folder and type this command to see if you can get to your recovery: fastboot reboot-recovery or fastboot reboot recovery
Click to expand...
Click to collapse
I don't think that will help as the Recovery gives me the dead droid every time. I was trying to replace the recovery in this exercise. This is more of a pain that its worth I think. Phones are so much easier to do this with. UGH!

TerrorTodd said:
I don't think that will help as the Recovery gives me the dead droid every time. I was trying to replace the recovery in this exercise. This is more of a pain that its worth I think. Phones are so much easier to do this with. UGH!
Click to expand...
Click to collapse
Follow this post - - > http://forum.xda-developers.com/showthread.php?p=30260444 <-- if you want to install the drivers.
Also make sure that you have a working fastboot environment and run the command prompt from the folder where fastboot.exe is located. The dead android you are seeing when accessing the recovery it's normal with Stock Recovery, nothing is wrong with your device.
BTW, i suppose that your device is already unlocked because otherwise Fastboot won't work.

Pretoriano80 said:
Follow this post - - > http://forum.xda-developers.com/showthread.php?p=30260444 <-- if you want to install the drivers.
Also make sure that you have a working fastboot environment and run the command prompt from the folder where fastboot.exe is located. The dead android you are seeing when accessing the recovery it's normal with Stock Recovery, nothing is wrong with your device.
BTW, i suppose that your device is already unlocked because otherwise Fastboot won't work.
Click to expand...
Click to collapse
Dead Droid with the word "Error" underneath it is normal?
Yes the device is unlocked. I cannot get into recovery and cannot get Fastboot to work because the stupid USB drivers don't recognize the tablet. Works fine when not in Fastboot mode, but when goes into fastboot no USB. It's maddening!!!!

Yes dead android it's ok.As for the driver just follow the link i posted and install the driver manually,that will solve the driver issue.

Pretoriano80 said:
Yes dead android it's ok.As for the driver just follow the link i posted and install the driver manually,that will solve the driver issue.
Click to expand...
Click to collapse
Will do this tonight when I get home from work and will report back!

TerrorTodd said:
Will do this tonight when I get home from work and will report back!
Click to expand...
Click to collapse
Ok so the problem was that I had the damn keyboard connected and was trying to connect through that. I took that off and UBS recognized immediately!! Going to try and root now etc. I will report back again!
Keyboard connected = BAD

TerrorTodd said:
Ok so the problem was that I had the damn keyboard connected and was trying to connect through that. I took that off and UBS recognized immediately!! Going to try and root now etc. I will report back again!
Keyboard connected = BAD
Click to expand...
Click to collapse
What Windows version are you running? Win 8 doesn't seem to recognize the fastboot drivers, or maybe it was that you have to change the option of Windows only using Microsoft signed drivers?? Can't quite remember. But lots of people were unsuccessful getting fastboot to work in Win8.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4

[Q] First timer Rooter having problems

Hello everyone. I am trying to root and flash my TF300T for the first time, and I am running into some problems.
I downloaded the unlocking tool from asus and that seemingly worked fine.
Now however when I try to boot into recovery mode, the android just falls down and gives me an error message. I am able to boot into the standard android mode without an issue. I tried to root with kingo which seemed to work as I can access the SuperSM.
I downloaded Minimal ADB and Fastboot to try and flash a ROM but I cant see the device in flashboot but I can in adb. (Saw on a different thread that I need to be in recovery mode to see this?)
I downloaded the naked universal drivers and put on everything that said asus but that didnt help at all.
My main goal is to get lollipop on my tablet but I cant seem to make any headway. Can someone help point me in the right direction on what I am doing wrong or what I should do next? Any help would be appreciated. Thanks.

Terry_Tsang said:
Hello everyone. I am trying to root and flash my TF300T for the first time, and I am running into some problems.
I downloaded the unlocking tool from asus and that seemingly worked fine.
Now however when I try to boot into recovery mode, the android just falls down and gives me an error message. I am able to boot into the standard android mode without an issue. I tried to root with kingo which seemed to work as I can access the SuperSM.
I downloaded Minimal ADB and Fastboot to try and flash a ROM but I cant see the device in flashboot but I can in adb. (Saw on a different thread that I need to be in recovery mode to see this?)
I downloaded the naked universal drivers and put on everything that said asus but that didnt help at all.
My main goal is to get lollipop on my tablet but I cant seem to make any headway. Can someone help point me in the right direction on what I am doing wrong or what I should do next? Any help would be appreciated. Thanks.
Click to expand...
Click to collapse
Ok I was dumb and figured out the first half of my problem. I thought it had to boot into recovery mode to get the fast loader to work. Anyways now it lists my device when I type fastload device but when I try to flash twrp it gives me an error saying
Sending 'Recovery" <6800 KB> ...
Failed (command write failed(No such device or address))
Can someone please help? thanks

I guess you forgot "-i 0x0b05" in the command
it should look like this:
fastboot -i 0x0b05 flash recovery twrp.blob
if fastboot devices detects tablet then this should work.
AFAIK Asus is the only one brand that needs "-i [hex_ID]" even when it is the only fastboot device detected by "fastboot devices" command
Sent from my TF300T using XDA Free mobile app

th3cr0w said:
I guess you forgot "-i 0x0b05" in the command
it should look like this:
fastboot -i 0x0b05 flash recovery twrp.blob
if fastboot devices detects tablet then this should work.
AFAIK Asus is the only one brand that needs "-i [hex_ID]" even when it is the only fastboot device detected by "fastboot devices" command
Sent from my TF300T using XDA Free mobile app
Click to expand...
Click to collapse
That id string is a vendor code and all android vendors have one ....
It is not need to flash from fastboot, it is only for safety that you need to use the vendor id ....
Thx Josh

I remembered reading about that while performing nvflash backup - https://www.androidroot.mobi/pages/guides/tegra3-guide-nvflash-jellybean/
and then I remembered it didn't work for me without that vendor ID specified manually,
later on I rooted my cousin's Sony phone and that one did fastboot without -i option, so I concluded it must be asus specific "issue" - not to detect ID automatically or sth ....
Anyway @Terry_Tsang - If you have not tried like that, it is always worth a shot ;]

I have tried it with and without the -i tag and get the same error. I have a feeling my recovery file is corrupt as I get an error when I try to boot into that mode. I also now have a new error instead of unable to write, it says invalid argument.
Since I was able to root it with kingo, I tried the TWRP app but it also crashes when I try to do an install of TWRP through the app. I have no idea how to proceed.
I have tried, rooting with kingo and the commands. I have tried unrooting it. I have tried rooting then using ROM Manager and TWRP apps. I have no idea how to continue. I definately think something is wrong tho lol.

th3cr0w said:
I remembered reading about that while performing nvflash backup - https://www.androidroot.mobi/pages/guides/tegra3-guide-nvflash-jellybean/
and then I remembered it didn't work for me without that vendor ID specified manually,
later on I rooted my cousin's Sony phone and that one did fastboot without -i option, so I concluded it must be asus specific "issue" - not to detect ID automatically or sth ....
Anyway @Terry_Tsang - If you have not tried like that, it is always worth a shot ;]
Click to expand...
Click to collapse
Well its all good not a point of being right a point in giving good info ...
Here are the most use vendor codes not just an Asus thing ?
https://gist.github.com/lj50036/3b30ecc420b5838646be
Thx Josh
---------- Post added at 09:43 PM ---------- Previous post was at 09:40 PM ----------
Terry_Tsang said:
Hello everyone. I am trying to root and flash my TF300T for the first time, and I am running into some problems.
I downloaded the unlocking tool from asus and that seemingly worked fine.
Now however when I try to boot into recovery mode, the android just falls down and gives me an error message. I am able to boot into the standard android mode without an issue. I tried to root with kingo which seemed to work as I can access the SuperSM.
I downloaded Minimal ADB and Fastboot to try and flash a ROM but I cant see the device in flashboot but I can in adb. (Saw on a different thread that I need to be in recovery mode to see this?)
I downloaded the naked universal drivers and put on everything that said asus but that didnt help at all.
My main goal is to get lollipop on my tablet but I cant seem to make any headway. Can someone help point me in the right direction on what I am doing wrong or what I should do next? Any help would be appreciated. Thanks.
Click to expand...
Click to collapse
You do not have to root to flash a recovery anyway ...
If you would like to look into this more shoot me an email at [email protected]
Thx Josh

Terry_Tsang said:
I have a feeling my recovery file is corrupt as I get an error when I try to boot into that mode. I also now have a new error instead of unable to write, it says invalid argument.
Click to expand...
Click to collapse
You did check the checksum of your download right?