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Device stuck in bootloop?

Hi guys,
So this is my first post but I've been on XDA for a long time. I've been looking for an answer to this problem, and I haven't been successful in finding a post that regards to my situation...
Ok so I just got my tablet today. I upgraded to JB and then I unlocked it using the asus unlocker. I attempted to install TWRP, but when I use .blob files and attempt to load into recovery it didn't work. Anyway, I looked around and I installed CWM recovery instead.
I installed v5.5.0.4 following this guide:
http://theunlockr.com/2012/05/25/how-to-install-clockworkmod-recovery-on-asus-transformer-tf300t/
Now, I notice it's written back in may of 2012 aka before jelly bean... anyway so I installed this using fast boot, and booted into recovery and it worked. I believe I installed the ICS version of CWM. I tried to install Clean Rom v3.3 and I just get bootloops. I can still boot into fastboot and clockwork mod fine.
I tried to install v6.0.1.4 via this thread http://forum.xda-developers.com/showthread.php?t=1846554
But once again if I boot into recovery it just does nothing and reboots after a few seconds.
I re-installed v5.5.0.4 and I can wipe data/install everything just as I normally would, and I still have access to Fastboot. Can I get some help on how I can 1 install the correct CWM and 2 install a working rom? I don't think I bricked my device just yet since I can still flash in fastboot etc.
Thanks guys!

You cant't wipe data from bootloader menu, If you do that, you will get unrecoverable brick.

Sorry I believe I mislead you -> I wiped data from within CWM.
Anyway, I used this thread:
http://forum.xda-developers.com/showthread.php?t=1757077
I went back to stock and I think i'll stay there for a little while longer, this process made me nervous (I've rooted my thunderbolt, droid DNA, galaxy tab 2 7" and my friends phones) so anyway I believe I installed the wrong CWM and that caused errors trying to install a JB rom on a ICS CWM... If you have any insight let me know...

undergfx said:
Hi guys,
So this is my first post but I've been on XDA for a long time. I've been looking for an answer to this problem, and I haven't been successful in finding a post that regards to my situation...
Ok so I just got my tablet today. I upgraded to JB and then I unlocked it using the asus unlocker. I attempted to install TWRP, but when I use .blob files and attempt to load into recovery it didn't work. Anyway, I looked around and I installed CWM recovery instead.
I installed v5.5.0.4 following this guide:
http://theunlockr.com/2012/05/25/how-to-install-clockworkmod-recovery-on-asus-transformer-tf300t/
Now, I notice it's written back in may of 2012 aka before jelly bean... anyway so I installed this using fast boot, and booted into recovery and it worked. I believe I installed the ICS version of CWM. I tried to install Clean Rom v3.3 and I just get bootloops. I can still boot into fastboot and clockwork mod fine.
I tried to install v6.0.1.4 via this thread http://forum.xda-developers.com/showthread.php?t=1846554
But once again if I boot into recovery it just does nothing and reboots after a few seconds.
I re-installed v5.5.0.4 and I can wipe data/install everything just as I normally would, and I still have access to Fastboot. Can I get some help on how I can 1 install the correct CWM and 2 install a working rom? I don't think I bricked my device just yet since I can still flash in fastboot etc.
Thanks guys!
Click to expand...
Click to collapse
My suggestion is to flash the latest stock JB blob.
fastboot -i 0x0B05 flash system blob
fastboot -i 0x0B05 reboot
Once you get it sorted then flash the latest twrp for jb.

Now, when I try flashing blobs and I go to boot into RCK (I believe that's the term...) it just reboots the tablet instead of booting into recovery.
Android software is out of my element, if this was some C (somewhat similar to C) or Matlab I would better understand (I'm a senior Mechanical Engineer in college)
Edit:
Ah didn't see your post. I did what you recommended, and actually, while my device said it was on 4.1.1 JB, when I hold pwr/vol down I see a completely different menu now than last time, so I wonder if perhaps my OTA didn't correctly load everything from the firmware update hmm...

undergfx said:
Now, when I try flashing blobs and I go to boot into RCK (I believe that's the term...) it just reboots the tablet instead of booting into recovery.
Android software is out of my element, if this was some C (somewhat similar to C) or Matlab I would better understand (I'm a senior Mechanical Engineer in college)
Click to expand...
Click to collapse
The same way you flashed cwm.
Windows? Start - in search type cmd - press enter
In the cmd window cd to the directory with fastboot.
Hook cable between tablet and usb port on computer.
On tablet hold power and volume down till you see the bootloader menu.
Down volume till you are at the usb symbol - then volume up.
This should put you into fastboot mode - use the commands above.
Wait till the first command completes before you give the second command.
[INDEX][04 Feb 2013]TF300T & TG-INDEX of Roms/Dev Guides/Kernels/Recoveries/etc. You will find the stock firmware here as well as most other needs.
You will have to unzip to get the blob which you should place in the directory with fastboot.

Thank you very much.
So after flashing the most resent blob, I successfully installed CWM recovery and successfully flashed a rom. I'm not sure what the issue was before. Thank you for the help! much appreciated.

undergfx said:
Thank you very much.
So after flashing the most resent blob, I successfully installed CWM recovery and successfully flashed a rom. I'm not sure what the issue was before. Thank you for the help! much appreciated.
Click to expand...
Click to collapse
You're welcome.
Good Luck!

Not able to reboot into recovery or auto-install ROM's

I had unlocked my TF700T and installed CM10, but it has never had the capability to reboot into recovery when enabled in the developer options -- selecting that when rebooting simply makes the ASUS logo come up several times, then it boots normal without going into recovery.
A related issue is when I download a CM10.1 update and tell it to upgrade, it reboots but doesn't install the new version from recovery.
I'm assuming something isn't unlocked or enabled somehow... but on the ASUS boot screen it does say "device is unlocked".

Nerva said:
I had unlocked my TF700T and installed CM10, but it has never had the capability to reboot into recovery when enabled in the developer options -- selecting that when rebooting simply makes the ASUS logo come up several times, then it boots normal without going into recovery.
A related issue is when I download a CM10.1 update and tell it to upgrade, it reboots but doesn't install the new version from recovery.
I'm assuming something isn't unlocked or enabled somehow... but on the ASUS boot screen it does say "device is unlocked".
Click to expand...
Click to collapse
I assume you can still access the recovery per the button-press method?

Yes, that's the only way I can access it.

Nerva said:
Yes, that's the only way I can access it.
Click to expand...
Click to collapse
The button press method is the proper way to flash anything. If you unlock you BETTER know how to flash in recovery. Also, GooManager will not flash firmware on the TF700, you must do it manually from recovery, thus why the upgrade is failing.
Tylor
Sent from my ASUS Transformer Pad TF700T using Tapatalk HD

Yes I certainly can and do flash all sorts of stuff from recovery -- first CM, now TWRP. But on my Epic 4G I just use CM Updater to download the latest ROM, then it asks me if I want to install, I say yes, and it reboots and installs it for me. But on my TF700T it isn't happening -- when I answer "yes" it just reboots without installing the new ROM.

Is it NORMAL with the TF700T to be unable to boot into recovery by using the power menu??
Is there something I don't have configured properly or didn't install something properly?

Nerva said:
Is it NORMAL with the TF700T to be unable to boot into recovery by using the power menu??
Click to expand...
Click to collapse
Yes (with the stock ROM).

Sorry, I should have been clear: I meant "with any version of CM?"

I use goo manager just to reboot into recovery, than flash manually. If I had to do the button boot recovery I wouldn't flash anything anymore.
Always sweaty hands when I see those three icons.
Sent from my HTC One X using xda app-developers app

Interesting. Rebooting to recovery with Goo Manager doesn't work for me either -- it just flashes the ASUS logo several times and then boots normally.
Seems like my recovery isn't setup properly -- any suggestions on how I can fix it?

Nerva said:
Interesting. Rebooting to recovery with Goo Manager doesn't work for me either -- it just flashes the ASUS logo several times and then boots normally.
Seems like my recovery isn't setup properly -- any suggestions on how I can fix it?
Click to expand...
Click to collapse
Sorry I can't help you fix it. But getting into recovery is as simple as typing this at the terminal if you have busybox installed or use the rebooter widget from ROM Toolbox or the market app. They all do the same thing.
Code:
reboot recovery

[Q] Help w/Twrp Install

I'm in a bootloop mentally and technically! I've spent days trying to install Twrp, searching the forum, watching videos... Think I've tried most guides two or three times w/o success. From GooManager/Install OpenRecoveryScript it starts downloading and then aborts w/a "false MD5 blob" pop-up. When I tried to install directly I had a validated MD5.
This is not a very helpful description of the problem but I'm so brain-drained that I really can't recall all the different things I've tried. Amazed I've not bricked the thing! Am just hoping someone can point me in the right direction.
TF700T, v.4.0.3, Kernel 2.6.39.4.
I just checked the posts "suggested" last night when I posted in the wrong form and I've been to them all except the one about using motochopper to root and then using GooManager to install Twrp recovery. I'm already rooted. Should I unroot and reroot w/motochopper?

cBirdR said:
I'm in a bootloop mentally and technically! I've spent days trying to install Twrp, searching the forum, watching videos... Think I've tried most guides two or three times w/o success. From GooManager/Install OpenRecoveryScript it starts downloading and then aborts w/a "false MD5 blob" pop-up. When I tried to install directly I had a validated MD5.
This is not a very helpful description of the problem but I'm so brain-drained that I really can't recall all the different things I've tried. Amazed I've not bricked the thing! Am just hoping someone can point me in the right direction.
TF700T, v.4.0.3, Kernel 2.6.39.4.
I just checked the posts "suggested" last night when I posted in the wrong form and I've been to them all except the one about using motochopper to root and then using GooManager to install Twrp recovery. I'm already rooted. Should I unroot and reroot w/motochopper?
Click to expand...
Click to collapse
Is your bootloader unlocked? See http://teamw.in/project/twrp2/105 "You need to be bootloader unlocked to use custom recoveries."

taaz69 said:
Is your bootloader unlocked? See http://teamw.in/project/twrp2/105 "You need to be bootloader unlocked to use custom recoveries."
Click to expand...
Click to collapse
Pretty sure I've already tried this. Page looks very familiar, but I will try "carefully" try it again. Thank you.

cBirdR said:
Pretty sure I've already tried this. Page looks very familiar, but I will try "carefully" try it again. Thank you.
Click to expand...
Click to collapse
If you don't see"This device is unlocked" top left when you boot, you are not unlocked and cannot install a custom recovery
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4

taaz69 said:
Is your bootloader unlocked? See http://teamw.in/project/twrp2/105 "You need to be bootloader unlocked to use custom recoveries."
Click to expand...
Click to collapse
taaz69, having the same problem I had b/4 following the "Recovery Image/Fastboot Method" on the link you furnished:
When I boot into fastboot (power on volume down) the only options that appear are two icons, "Wipe Data" and "Android". There is no usb icon to select.
Following "ADB/Terminal method" with terminal emulator or with adb it seems to be doing something, but I still cannot boot into the bootloader...same two "Wipe Data" and "Android" icons.
berndblb said:
If you don't see"This device is unlocked" top left when you boot, you are not unlocked and cannot install a custom recovery
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4
Click to expand...
Click to collapse
berndbld, so no "unlocked" notification. Does this mean I cannot install Twrp and use GooManager? Where do I go from here?

cBirdR said:
taaz69, having the same problem I had b/4 following the "Recovery Image/Fastboot Method" on the link you furnished:
When I boot into fastboot (power on volume down) the only options that appear are two icons, "Wipe Data" and "Android". There is no usb icon to select.
Following "ADB/Terminal method" with terminal emulator or with adb it seems to be doing something, but I still cannot boot into the bootloader...same two "Wipe Data" and "Android" icons.
berndbld, so no "unlocked" notification. Does this mean I cannot install Twrp and use GooManager? Where do I go from here?
Click to expand...
Click to collapse
You can download the Asus Unlock app V8 from Asus website.. You need to install it on your device and open it. It will walk you through the whole process. It is very quick and easy.. Good luck. :fingers-crossed:

cBirdR said:
taaz69, having the same problem I had b/4 following the "Recovery Image/Fastboot Method" on the link you furnished:
When I boot into fastboot (power on volume down) the only options that appear are two icons, "Wipe Data" and "Android". There is no usb icon to select.
Following "ADB/Terminal method" with terminal emulator or with adb it seems to be doing something, but I still cannot boot into the bootloader...same two "Wipe Data" and "Android" icons.
berndbld, so no "unlocked" notification. Does this mean I cannot install Twrp and use GooManager? Where do I go from here?
Click to expand...
Click to collapse
Yeah, like LetMeKnow said, you have to unlock your tab using the Asus Unlock tool.
The info on the TWRP site is somewhat outdated and refers to the JB 4.1 bootloader. Under JB 4.2,
if you boot into the bootloader menu, you are already in fastboot mode by default. Under 4.1 you would select the USB icon to start fastboot. Oh, btw, if you boot with Power and Volme Down, you ARE in the bootloader...
I do hope you have RCK in addition to the Android and Wipe Data in your bootlaoder menu! Otherwise something is seriously wrong here!
Once you unlocked you will be able to use GooManager or the ADB method to flash TWRP.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4

berndblb said:
I do hope you have RCK in addition to the Android and Wipe Data in your bootlaoder menu! Otherwise something is seriously wrong here!
Click to expand...
Click to collapse
IIRC the old 9.4.x bootloader used some other way to boot to recovery.
@cBirdR: if your firmware version is still 9.4.5.26 or earlier, be sure to read the thread about NVFlash *before* you install anything and create your blobs for unbricking.

_that said:
IIRC the old 9.4.x bootloader used some other way to boot to recovery.
@cBirdR: if your firmware version is still 9.4.5.26 or earlier, be sure to read the thread about NVFlash *before* you install anything and create your blobs for unbricking.
Click to expand...
Click to collapse
The 9.4.x bootloader was alsmost the same as the new bootloader, the only difference is that it had 4 options (fastboot, recovery, coldboot and wipe data) instead of 3.And iirc if the device was locked the fastboot option (USB icon) was hidden but the recovery was always there (RCK icon).

LetMeKnow said:
You can download the Asus Unlock app V8 from Asus website.. You need to install it on your device and open it. It will walk you through the whole process. It is very quick and easy.. Good luck. :fingers-crossed:
Click to expand...
Click to collapse
Forestalling further ****ups, Asus says V8 is for 4.2 JB. I'm still on 4.0.3 ICS. Shouldn't I be using the V7 Unlock Device App?

cBirdR said:
Forestalling further ****ups, Asus says V8 is for 4.2 JB. I'm still on 4.0.3 ICS. Shouldn't I be using the V7 Unlock Device App?
Click to expand...
Click to collapse
@cBirdR: Did you see _that's post? Stop what you are doing and check your firmware version! If you have .26 or earlier, you are in a very enviable position! You cannot use NVflash on later firmware versions.
Think long and hard about letting this opportunity pass.....
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4

Yes, read _that's post, but my build is 9.4.5.30 so thought did not apply to me. Closed the window I had open on NVflash. Are you saying I should not use the Asus apk?

cBirdR said:
Yes, read _that's post, but my build is 9.4.5.30 so thought did not apply to me. Closed the window I had open on NVflash. Are you saying I should not use the Asus apk?
Click to expand...
Click to collapse
No you are ok. Your one build too late to enjoy an unbrickable tablet
Go ahead, use the tool to unlock and proceed as planned.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4

berndblb said:
No you are ok. Your one build too late to enjoy an unbrickable tablet
Go ahead, use the tool to unlock and proceed as planned.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4
Click to expand...
Click to collapse
Well, I've finally got Twrp installed, but cannot reboot into recovery from GooMgr or Clock Mode, only via the bootloader. I was re-reading you guys' posts and your #7 says it all. No RCK. I tried downloading it with Clock Mod, indicated success but nothing changed.
Twrp's Reboot Menu only lists System and Power Off, no Recovery or Bootloader option. But Clock Mode Recovery says current recovery is TWRP. Is it time for me to head for the Twrp forum? I know it's time to donate.

cBirdR said:
Well, I've finally got Twrp installed, but cannot reboot into recovery from GooMgr or Clock Mode, only via the bootloader. I was re-reading you guys' posts and your #7 says it all. No RCK. I tried downloading it with Clock Mod, indicated success but nothing changed.
Twrp's Reboot Menu only lists System and Power Off, no Recovery or Bootloader option. But Clock Mode Recovery says current recovery is TWRP. Is it time for me to head for the Twrp forum? I know it's time to donate.
Click to expand...
Click to collapse
I have not used Goo and CM. Therefore, I don't know what they have on their boot menu. About the TWRP reboot menu, there are only two options. One is System and other is Power Off.. If you want to boot into the bootloader, you need to use the power button + volume down when your device is in the off state. Also, if you have the latest bootloader, you should see three icons: RCK, Android, and Wipe..

LetMeKnow said:
I have not used Goo and CM. Therefore, I don't know what they have on their boot menu. About the TWRP reboot menu, there are only two options. One is System and other is Power Off.. If you want to boot into the bootloader, you need to use the power button + volume down when your device is in the off state. Also, if you have the latest bootloader, you should see three icons: RCK, Android, and Wipe..
Click to expand...
Click to collapse
You could download Quick boot from the Playstore then you will get the options you want.

maxal said:
You could download Quick boot from the Playstore then you will get the options you want.
Click to expand...
Click to collapse
Thanks for the information. I use power menu from the play store and it also has the soft screen off option..

cBirdR said:
Well, I've finally got Twrp installed, but cannot reboot into recovery from GooMgr or Clock Mode, only via the bootloader. I was re-reading you guys' posts and your #7 says it all. No RCK. I tried downloading it with Clock Mod, indicated success but nothing changed.
Twrp's Reboot Menu only lists System and Power Off, no Recovery or Bootloader option. But Clock Mode Recovery says current recovery is TWRP. Is it time for me to head for the Twrp forum? I know it's time to donate.
Click to expand...
Click to collapse
Let me make sure I understand you correctly:
You have TWRP installed and can boot into it - correct?
Which version of TWRP?
I have no idea what Clock Mod is and I wouldn't use GooManager for anything but installing TWRP.
As _that said, the ICS bootloader may have had a different way to boot into recovery, I don't know - I did not have ICS on this tab ever. But if you can boot into TWRP (hopefully version 2.5, 2.6 will do in a pinch) it does not matter.
If all that is true, select 'Backup' in TWRP and make a nandroid of your current setup. And I assume you have backed up all personal data, pictures, videos etc to an external SD card anyway.....
Assuming you want to run a custom rom, go to the OP of the CROMi-X thread, download and flash the 10.6.1.14.8 bootloader/TWRP 2.5 package and then boot back into system which should happen automatically, but if it doesn't, just boot back into system once.
Boot back into TWRP, select 'Wipe' and swipe the button to do a factory reset. This is crucial. You do not want to install a JB 4.2.1 based rom without doing a factory reset first.
Go back to the Home page in TWRP, select 'Install', navigate to the CROMi-X 4.7 rom you downloaded to your external card and flash it.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4

Not very adept w/Multi-Quote!
berndblb: Cannot boot into TWRP from GooMgr. Pauses a bit on the Asus logo then boots normally. Only method to boot into TWRP is power off, boot w/ boot with Power and Volume Down, b/4 the three icons Wipe, USB, Android appear, push power down and it boots into TWRP (version 2.6.0.0). Not going to try the second part of your post re OP of CROMi-X thread until I see what you have to say this.
ClockworkMod (ROM Manager), koushikdutta developer. I'm sure you know it.
LetMeKnow and Maxal:
TWRP on my Nexus7 has four choices under the Reboot Menu: System, Power Off, Recovery and Bootloader. TWRP on TF700T only System and Power Off. Also there is no RCK icon when
I did get a backup last night using TWRP.
I've used Quick boot for years and cannot boot into recovery thru it...same result as when try to reboot into recovery w/GooMgr.
Appreciation to you all.

cBirdR said:
Not very adept w/Multi-Quote!
berndblb: Cannot boot into TWRP from GooMgr. Pauses a bit on the Asus logo then boots normally. Only method to boot into TWRP is power off, boot w/ boot with Power and Volume Down, b/4 the three icons Wipe, USB, Android appear, push power down and it boots into TWRP (version 2.6.0.0). Not going to try the second part of your post re OP of CROMi-X thread until I see what you have to say this.
ClockworkMod (ROM Manager), koushikdutta developer. I'm sure you know it.
LetMeKnow and Maxal:
TWRP on my Nexus7 has four choices under the Reboot Menu: System, Power Off, Recovery and Bootloader. TWRP on TF700T only System and Power Off. Also there is no RCK icon when
I did get a backup last night using TWRP.
I've used Quick boot for years and cannot boot into recovery thru it...same result as when try to reboot into recovery w/GooMgr.
Appreciation to you all.
Click to expand...
Click to collapse
It is odd. RCK is a part of your bootloader. If it is not there, then something is wrong with your bootloader. It just my understanding about the bootloader. I am wrong so many times about the Android OS. So please don't take it seriously until some experts confirm it.. If you screw up your bootloader, I don't think there are many options for you to fix it. Now you still can access to it. I would suggest that you do a factory reset and download the full latest firmware from Asus website and update your bootloader.. It just my opinion. I am very sure some experts here will chime in and give you a better instructions or guides.. Good luck.

[Q] tf300t

Hi. I had endless issues last night trying to install a nightly build of Cyanogenmod 10.2 on my Asus tf300t. Long story short, after the CM update from within android, the recovery mod (CWM) had trouble mounting the sd card. I then flashed the latest version of TWRP and tried to update the bootloader by installing the latest firmware from asus, at this point everything went well. Back to the updated bootloader, I tried to install the nightly CM and still got mounting problems so again, I tried switching between TWRP and CWM. Now, I'm suck. I cannot get passed the asus boot logo: after a few seconds, it falls back to the recovery mod (I may have wiped the newly installed system). At any point, holding power+vol-down has no effect, I cannot get into the bootloader menu and enable fastboot. Only thing I have left is access to CWM and access the device via ADB. Can anyone recommend me a course of action?
Also, I'm trying to get one thing straight: what is actually needed to install a recent version CM? There seems to be some intricate dependencies between the bootloader version you're using along with the version of the recovery mod and the CM / android you're about to install. (If anyone can clarify this for me, it would be really appreciated).
Any suggestion regarding any ways on how I could recover my device will be greatly appreciated!
Thanks!

Stravor said:
Hi. I had endless issues last night trying to install a nightly build of Cyanogenmod 10.2 on my Asus tf300t. Long story short, after the CM update from within android, the recovery mod (CWM) had trouble mounting the sd card. I then flashed the latest version of TWRP and tried to update the bootloader by installing the latest firmware from asus, at this point everything went well. Back to the updated bootloader, I tried to install the nightly CM and still got mounting problems so again, I tried switching between TWRP and CWM. Now, I'm suck. I cannot get passed the asus boot logo: after a few seconds, it falls back to the recovery mod (I may have wiped the newly installed system). At any point, holding power+vol-down has no effect, I cannot get into the bootloader menu and enable fastboot. Only thing I have left is access to CWM and access the device via ADB. Can anyone recommend me a course of action?
Also, I'm trying to get one thing straight: what is actually needed to install a recent version CM? There seems to be some intricate dependencies between the bootloader version you're using along with the version of the recovery mod and the CM / android you're about to install. (If anyone can clarify this for me, it would be really appreciated).
Any suggestion regarding any ways on how I could recover my device will be greatly appreciated!
Thanks!
Click to expand...
Click to collapse
READ BEFORE YOU START!!!!!!
CM10.2 is for the 4.2 BOOTLOADER AND CWM IS NOT WORKING WITH IT! you now have a bricked tablet! sorry :'(

noahvt said:
READ BEFORE YOU START!!!!!!
CM10.2 is for the 4.2 BOOTLOADER AND CWM IS NOT WORKING WITH IT! you now have a bricked tablet! sorry :'(
Click to expand...
Click to collapse
"Bricked" seems to be oftenly abused around here. Having ADB access and being able to boot into CWM, isn't there anything I can do to enable fastboot, force a bootloader downgrade or something?
Thanks!

This is the only thing I can do for you
http://forum.xda-developers.com/showthread.php?p=45120193
Sent from my TF300T using xda app-developers app

noahvt said:
This is the only thing I can do for you
http://forum.xda-developers.com/showthread.php?p=45120193
Sent from my TF300T using xda app-developers app
Click to expand...
Click to collapse
Moral of this story: "bricked" really is an abused word around here. For anyone in my situation, namely: stuck in a boot loop where power+volume down has no effect and thus is preventing access to fastboot, if you still have adb access, you can issue: adb reboot bootloader, it should at least allow you to access the bootloader again and from there, fastboot. The above linked post really was helpful. Thanks!

Stravor said:
Moral of this story: "bricked" really is an abused word around here. For anyone in my situation, namely: stuck in a boot loop where power+volume down has no effect and thus is preventing access to fastboot, if you still have adb access, you can issue: adb reboot bootloader, it should at least allow you to access the bootloader again and from there, fastboot. The above linked post really was helpful. Thanks!
Click to expand...
Click to collapse
"ricked" may be abused, but I don't understand your situation very well, much less how you extricated yourself from it. If you're in a boot loop, you cannot complete the booting process (much like a tab with bootloader, recovery, but no OS installed). Without it, you have no access to ADB. Which in turn doesn't allow you to issue ADB commands. If additionally, you have no access to fastboot because volume down+power, and/or reset+volume down, does nothing (bootloader with icons absent), you cannot issue fastboot commands. Without the two, and the uselessness of APX mode, I'm not sure why that's not characteristic of a soft brick.
I have a mainboard that shows nothing but the initial Asus logo (not the one with boot animation, i.e., spinning dots) and "the device is unlocked." If I use either fastboot or ADB from PC, it returns with "waiting for device..." You were in the same boat, were you not? Looks like part of the firmware is still there (I assume if you replace the nand with a brand new, blank one, nothing would show up on display) , but the bootloader is messed up. If you'd succeeded in resurrecting your tab, then how do I rectify it, if you care to enlighten? Thank you in advance.

Possibly bricked trying to update to CM11

A couple of months back, I had unlocked the bootloader (I had stock 4.2.1) and rooted this tablet in order to put Cyanogenmod on it. The current version was CM10.2 (nightlies). I was able to update to different nightly versions and then to the stable 10.2 version. Recently, I saw CM11 nightly versions beginning to appear, so I thought I'd install it.
Using TWRP 2.6.1.0, I had been able to do all of my CM10.2 updating. However, with CM11, the initial flash didn't work (I did clear cache and Dalvik), and so I thought I had to update TWRP. I downloaded TWRP 2.6.3.0 for the TF300T (both .img and .blob) and tried to fastboot them to my device. .img did not work, but then the blob fastboot was able to install TWRP, however, there was a password lock. Reading about this online, I thought I just had to reflash TWRP 2.6.3.0. I tried that and got the same password issue.
Then, I thought that CWM would be a better option (although I thought I may have seen things about it not playing well with the 4.2.1 bootloader...). I flashed a version of that (not exactly sure what version... (which may be the source of my problem) but it was for the TF300T...). Then, upon rebooting, it got stuck on the ASUS loading screen (with "The Device is UnLocked." in the corner). So then I tried rebooting into the recovery, but then I couldn't access the recovery menu from power + vol. down buttons anymore.
Basically, what I can do now is restart the tablet (via holding the power button or pressing the reset slot), but it always gets stuck on the ASUS screen, or I can enter APX mode, but don't think that'll do much good since I don't have nvFlash installed...
Is my tablet bricked?
Thanks in advance!
PS - I saw some solutions that required opening up the tablet. I would be okay with doing that, but only as a last resort!

Quevvy said:
A couple of months back, I had unlocked the bootloader (I had stock 4.2.1) and rooted this tablet in order to put Cyanogenmod on it. The current version was CM10.2 (nightlies). I was able to update to different nightly versions and then to the stable 10.2 version. Recently, I saw CM11 nightly versions beginning to appear, so I thought I'd install it.
Using TWRP 2.6.1.0, I had been able to do all of my CM10.2 updating. However, with CM11, the initial flash didn't work (I did clear cache and Dalvik), and so I thought I had to update TWRP. I downloaded TWRP 2.6.3.0 for the TF300T (both .img and .blob) and tried to fastboot them to my device. .img did not work, but then the blob fastboot was able to install TWRP, however, there was a password lock. Reading about this online, I thought I just had to reflash TWRP 2.6.3.0. I tried that and got the same password issue.
Then, I thought that CWM would be a better option (although I thought I may have seen things about it not playing well with the 4.2.1 bootloader...). I flashed a version of that (not exactly sure what version... (which may be the source of my problem) but it was for the TF300T...). Then, upon rebooting, it got stuck on the ASUS loading screen (with "The Device is UnLocked." in the corner). So then I tried rebooting into the recovery, but then I couldn't access the recovery menu from power + vol. down buttons anymore.
Basically, what I can do now is restart the tablet (via holding the power button or pressing the reset slot), but it always gets stuck on the ASUS screen, or I can enter APX mode, but don't think that'll do much good since I don't have nvFlash installed...
Is my tablet bricked?
Thanks in advance!
PS - I saw some solutions that required opening up the tablet. I would be okay with doing that, but only as a last resort!
Click to expand...
Click to collapse
Try using fastboot to install this version of TWRP: http://forum.xda-developers.com/showpost.php?p=48512729&postcount=16
It will only work if you were on 10.6.1.15 or above. It allows flashing CM11.

cmendonc2 said:
Try using fastboot to install this version of TWRP: http://forum.xda-developers.com/showpost.php?p=48512729&postcount=16
It will only work if you were on 10.6.1.15 or above. It allows flashing CM11.
Click to expand...
Click to collapse
The thing is, I can't get into fastboot the typical way; pressing power and volume down does not go into the fastboot mode like it did before. I can get into APX mode, though. Can I use that to flash a recovery? I haven't been able to find a way of doing that yet…

Quevvy said:
The thing is, I can't get into fastboot the typical way; pressing power and volume down does not go into the fastboot mode like it did before. I can get into APX mode, though. Can I use that to flash a recovery? I haven't been able to find a way of doing that yet…
Click to expand...
Click to collapse
No, you need nvflash backups to use APX mode. Since you can't get to the recovery menu, I can't think of any other solutions....?

Same here
I'm in the same state after trying to update from 10.2 to 11. Just sits at the ASUS logo screen. No fastboot or recovery. I can get it to turn off by holding the up volume and inserting a paper clip into the reset switch hole. Otherwise I have been totally unsuccessful in getting it to do anything else. At this point I'm not adverse to opening it up. Do you have the link to the solution you found that required opening the tablet? Maybe I'll give it a try.

boggessb said:
I'm in the same state after trying to update from 10.2 to 11. Just sits at the ASUS logo screen. No fastboot or recovery. I can get it to turn off by holding the up volume and inserting a paper clip into the reset switch hole. Otherwise I have been totally unsuccessful in getting it to do anything else. At this point I'm not adverse to opening it up. Do you have the link to the solution you found that required opening the tablet? Maybe I'll give it a try.
Click to expand...
Click to collapse
You would have to open it and replace the motherboard with a new one like this:
http://forum.xda-developers.com/showthread.php?t=2368372
With a new part like this:
http://www.ebay.com/itm/like/390706401658?lpid=82