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Been modding android devices since the G1 but never got stuck like this before. Already spent hours of searching and googling but couldn't find any definite answer.
My B70 got bricked when using a program to boot into recovery.
Is there any way out or should I just throw it away?
I have a feeling that the device is looking for a recovery on internal SD card and fails. I can see the unit as ADB unit but when trying to connect it says device is offline both in normal boot or in recovery boot.
Been trying putting stock roms on external SD but it never runs it.
Has anyone solved this problem?
Check your SBK version and try to NVFlash
Try to boot recovery/apx wipe permissions /data if possible
post questions in Q&A not Dev
After a lot of examination it has been decided that you have posted this in the wrong section and we shall place it where it should be. Please make sure you post correctly next time.
Like mentioned already, some B70 are SBKv1 meaning nvflashable.
What app did you use to get into recovery causing the "brick"
Can you still get into cwm recovery, ect.
you still have hope if ADB can see it, try to update your driver.
If it work use ADB to push the file you need.
Sorry for wrong thread.
I probably have SBK2 (how to check) because usb just disconnects as soon as I try to run any nvflash stuff.
I also believe that ADB could be the saviour but it says offline. So this could be due to driver issue? Interesting, I shall try on a 32 bit computer.
If I suceed to connect through ADB, can I then flash CWM recovery?
The app I used to get into recovery was just a random boot into recovery app. It worked many times before. I don't think taht app caused this, maybe the recovery files where deleted?
df9517 said:
Sorry for wrong thread.
I probably have SBK2 (how to check) because usb just disconnects as soon as I try to run any nvflash stuff.
I also believe that ADB could be the saviour but it says offline. So this could be due to driver issue? Interesting, I shall try on a 32 bit computer.
If I suceed to connect through ADB, can I then flash CWM recovery?
Click to expand...
Click to collapse
You can use SBKdetect to check your SBK version (linux)
Did you have CWM before? Are you rooted?
What is your tablet doing right now? Stuck at the start up screen?
My tablet was previously running rooted ICS WW .11 with CWM.
Now its just stuck at the first boot image. I can go into same image where it tries to run recovery image by holding vol down. I guess it is standard brick.
Not getting anywhere with ADB, device is offline
hmm.. can you cold boot? just hold vol-down and wait?
df9517 said:
Not getting anywhere with ADB, device is offline
Click to expand...
Click to collapse
Search on here for the universal naked driver. Try that or sometime if you can try a different usb port.
Can you get into CWM Manually?
Hold VOL DOWN and POWER for about 10-12 seconds until some small text appears.
Quickly (within 5 seconds) release both buttons and hit VOL UP to enter RCK (Recovery).
If you can get into CWM this way you should be able to clear some caches and see if it will boot. If need be, you may be able to flash a new ROM if need be.
I only got the naked ADB drivers to work. The real ASUS ones does not work. Only tries 64 bit though.
Of course I tried to go into recovery manually.
Actually I now remember that just before this happened I updated CWM through the clockwork app. Probably updated to a version that does not work.
Since you have ADB working, download a CWM flashable .zip from your favorite recovery thread and extract the recoveryblob.
adb push it to /temp/dd or something similar, then run adb shell, su, and (you will need root/busybox on here) dd if=/your/blob/here of=/dev/block/mmcblk0p4.
after running that, run reboot, you should see a blue line and be able to get into a good CWM recovery. never use rom manager.
Thing O doom.
It always says my device is offline using ADB. I have only got naked driver to work.
But now I saw the NVflash for B70+ devices in your post. I will try that tonight.
I have not given up.
Yes, that is probably your only hope if you can't get ADB working, and it just came out! Lucky day
Yes, thank you all!! Finally NVflash for B70+ devices saved my day. Reflashed original ROM.
I was looking at rooting my tablet with this "1-click" method. has anyone actually used it? I am wondering if I should go ahead and use it on my tablet. i have a B90.
Just use thing-o-Doom's Peri
http://forum.xda-developers.com/showthread.php?t=1681155
I haven't used it but it seems to be getting pretty good feedback
So I know that I am unable to unbrick my tablet (if it were to happen.... hopefully not!). but i noticed in the documentation, it says:
"I bricked my tab on purpose using ROM manager to test the unbricker. Seems to work fine, let me know. "
So if I were to brick mine, would I be able to unbrick it then? If not, is there any other way to unbrick? I know last time i checked, there wasn't, but just curious if there is now a way.
sniper8752 said:
So I know that I am unable to unbrick my tablet (if it were to happen.... hopefully not!). but i noticed in the documentation, it says:
"I bricked my tab on purpose using ROM manager to test the unbricker. Seems to work fine, let me know. "
So if I were to brick mine, would I be able to unbrick it then? If not, is there any other way to unbrick? I know last time i checked, there wasn't, but just curious if there is now a way.
Click to expand...
Click to collapse
Nvflash work with SBKv2 now so unbricking is a possibility
would this be better to use here now?: http://forum.xda-developers.com/showthread.php?t=1689193
also, with the peri one, do i copy the files to the tablet, then run the .bat file from there? also, how do i prevent "any commands run at the splash screen or in recovery"?
PERI copies files to tablet for you, it's only a couple files. You just run the .bat file, it will always ask you to 'press any key to continue' or etc.. before running any commands. It's pretty straightforward :]
wow! that seemed too fast. how do i know if it did anything?
You'll now have a CWM recovery, hold volume down before (And while) turning on the TF, wait a couple seconds then press volume up when it says (Checking for RCK). You should have a custom touch recovery, which you use to install the superuser.zip to root. :]
there was a red exclamation that appeared.
You'll need to rerun PERI, make Sure to read all instructions, and that USB debugging is enabled. Probably a driver issue.
so after i run the batch file, i should see cwm? i am not seeing it installed still.
Yes, does the device show up in adb devices? (the check before the root.)
Thing O Doom said:
Yes, does the device show up in adb devices? (the check before the root.)
Click to expand...
Click to collapse
sorry; how do i check this?
adb devices...
Or peri will say Error: Device not found
Multiple times if it isn't working.
"cmd,
cd C:\Peri\folder\
adb devices"
here is what it looks like with my tablet plugged in when i run that command prompt:
http://www.mediafire.com/imageview.php?quickkey=2imqi01bcqqkv9v
sniper8752 said:
here is what it looks like with my tablet plugged in when i run that command prompt:
http://www.mediafire.com/imageview.php?quickkey=2imqi01bcqqkv9v
Click to expand...
Click to collapse
nothing under that? there should be a string of letters and numbers and which mode are you in? If you are in andorid is usb debugging enabled?
yep, made sure it was in usb debugging mode.
so i got as far as rebooting and then clearing the cache, but it just shows a droid with a warning triangle.
Why don't you use "easy flash" method to root ? All you need to do is get your tablet in APX mode and root... i did it yesterday as i was messing with kernel n bricked it. So i had to unbrick and go complete stock ICS without root, after all that i used easy flash to root and install revolver ICS rom again...
Sent from my Transformer TF101 using xda app-developers app
where is "easy flash"? and not sure what apx mode is
Hi,
I've got a huge problem - i've been using Megatron ROM on my TF101, but sth has f****d up and i couldn't switch off WiFi/3G dongle and connect it to PC by USB. So i've decided to come back to original ROM by ASUS. A here is a bummer- after cleaning data/cache/system/delvik original system is not working. So i tried to use easy flasher - same thing. Nothing happened, tablet just boot to recovery. I thought it might be the system, so I wanted to install Revolution, and then Megatron again - but nothing! Every time I turn on the tablet, it boots to recovery, as no ROM was installed. Any ideas? THX a lot for answers & hints....
There is sometimes a problem after flashing a recovery where recovery gets stuck in a loop. Even if a ROM was properly flashed afterwards. There is a workaround and a fix hanging around.
I'll have to look for where the fix was posted, but it was somewhere on these boards. Basically, you have to connect the tablet up to a computer with ADB while it is in recovery and open an adb shell on the computer (or you can do this from the terminal shell in the recovery if you have the latest OpenRecovery TWRP 2.2.2.1) and you issue an environment variable to be written and it permanently fixes it.
The work-around, which is temporary, but gets what you need done, is to do a hard restart. Press and hold both the Power button and the Down-Volume button until after it reboots. You'll see some text on the screen (don't press up-volume) and then be given a choice of factory-reset, or Cold Boot Linux (Android in this case). Do the cold boot. That should get you into your ROM.
Sent from my Transformer TF101 using Tapatalk 2
Thanks a lot - i've been able tu get into ROM now. I've tried to fix bootloop (because it causes some more problems - in Revolution HD WiFi is not working) with thread {Guide}ClockWorkMod recovery bootloop fix (Tested on my c10) Windows (sorry, i cannot insert any links yet) but i've stopped @ point 8. ADB push is working fine, files are in folder "Download", but from CWM i am not able to install zips from internal memory, only from microSD. And then when CWM is on, ADB is not connecting with tablet. Why?
Hi !
I've also experienced a bootloop with some version of CWM Recovery (I was running CM9 and ROM Manager messed up everything ). The only way to start Android was to "cold boot Linux" every time, like you.
The solution I used was to start Android, activate USB debugging mode and authorize root access from shell, connect the tablet to the computer and then start an ADB Shell.
Then, you have to enter "su" in this shell to get the root access. The last command to enter is :
Code:
echo boot | dd of=/dev/block/mmcblk0p3 bs=1 seek=0
Which is basically setting the BOOT flag on the Android partition.
If you need more to do this, like screenshots... I'd be happy to help.
I would much appreciate that!! And could be useful for the others...
[Edit]
Made it! Thanks a lot both of you!
Great
Sorry, I didn't have time to make screenshots yesterday evening (it's 9:50 am here), so if someone wants it, just ask !
Sent from my Transformer using xda premium
New that would get attention. Is there anyone out there that is dedicated to helping for a lil cabbage? I have this tf101 transformer that i cant seem to get rooted. Why is it so gosh dern hard to root one? I have followed all methods and tryed diff methods. The emulator runs but root is still not acheived. I have not bricked it. Its running ics. Ive rooted phones and tablets since the evo 4g..... this garbage a$$ tablet is without a doubt one of the worst i have ever had the displeasure of owning. Nexus 7,,,samsung note 1,,,note 2,,,,,,note 10.1,,,,,htc first,,,,evo 4g,,,,blackberry tour....AND NONE HAVE EVER BEEN THIS HARD TO ROOT. I wont buy another asus anything.
So,if som1 could explain what im doing wrong thatwould be great...also 20 buck in the paypal acct.....if you can think of it. Ive done it. Next is taking it apart to see what makes it tick
First thing - Does your tablet get seen by your PC in either APX or ADB mode? And did you update the driver using the Naked Drivers?
Last time I rooted I used Wolf's Method 3. Here is what I did:
Plugged in my tablet to my PC via USB (win 7 PC).
After the device was detected, I went to Settings - Developer Options - Debugging (tick the box).
It should install new hardware and show 2 devices, an MTP and an ADB device.
Update the driver in the Device Manager on the windows machine to the Naked Drivers
Once that is updated, I downloaded ADB from the Android SDK. You really only need three files, available here: http://forum.xda-developers.com/showthread.php?t=1998650
Unzip these files to a folder called c:\adb
Open a command prompt and type the following:
Code:
c:
cd c:\adb
adb devices
It should show a device connected. It may error out when restarting the daemon, but keep trying and see if it can find your tablet.
If you cannot get the ADB driver installed or updated, my guess is that you have a bad USB cable. Yes, it IS possible to have a bad cable for data transfer that STILL charges your tablet. I have even had that happen to me.
If you got this far, then here is what to do next:
Download your favorite recovery. I strongly recommend TWRP. The latest official release is here: http://techerrata.com/file/twrp2/tf101/openrecovery-twrp-2.3.2.3-tf101.blob
Save this at c:\adb\TWRP.blob. You can use a different recovery method if you have the blob file (such as CWM) but TWRP is far superior unless you are looking to install Android Revolution HD.
Next, run the following commands (from Wolf's Exploit, Method 3)
Code:
adb push TWRP.blob /sdcard/
adb shell
mv /data/local/tmp /data/local/tmp.bak
ln -s /dev/block/mmcblk0p4 /data/local/tmp
adb reboot
exit
It will reboot. Once you see the ASUS loading screen, you can continue:
Code:
adb shell
dd if=/sdcard/TWRP.blob of=/dev/block/mmcblk0p4
Wait until you see it succesfully transfer data.
Then:
Code:
adb reboot
exit
Once it reboots, you should see a progress bar at the ASUS screen. Once this completes you will have TWRP (or some other custom recovery installed)
Now you can install your favorite SuperUser app.
Download a zip flashable SuperUser
ChainsDD SuperUser: http://downloads.noshufou.netdna-cdn.com/superuser/Superuser-3.1.3-arm-signed.zip
ClockWorkMod SuperUser: http://download.clockworkmod.com/superuser/superuser.zip
Chainfire SuperSU: http://download.chainfire.eu/333/SuperSU/UPDATE-SuperSU-v1.34.zip
I like the CWM SuperUser at the moment, but all three will work.
Put these where you can see them from the recovery you flashed. If using TWRP, it needs to be in the /sdcard/ directory or on the microSD card.
Next, reboot to recovery. Hold VOL DOWN and POWER for 12-15 seconds until you see some white text in the upper left of the screen. Release both buttons and tap VOL UP to enter RCK (Recovery).
Once in recovery, tap Install and choose the SuperUser.zip file to install. Once installed, you are rooted.
Another time I rooted, I used EasyFlasher and here is the thread on my rooting guide for that if you are interested: http://www.transformerforums.com/fo...nt/31927-frederucos-guide-root-rom-tf101.html
Once again, if you cannot get your tablet detected by ADB or APX, chances are it is a bad USB cable.
harley1rocker said:
-snip-
Click to expand...
Click to collapse
If you've 'tried everything', then it's likely Bad drivers or a bad USB cable, I'll assume you've tried my tool, the idcrisis tool, Easyflasher and wolf's method (Described by Fred) above.
If you'd like me to remote desktop you with Teamviewer to make sure your drivers are good I can do that, but if you've really tried everything then it's likely a bad cable.
ToD
To test the cable, simply transfer a file through USB with a known md5 signature, then verify it again after it's been transferred. You can use something like AFV to check the md5 once on the device. The bigger the file the better; the more chances it has to fail.
I GOT IT! holy crap! Ive gotta windows 7 comp. It turns out, it was the computer!. I completely wiped my laptop and started over. Still failed to flash recovery. I borrowed a friends computer and wah lah. Went into apx mode, got the new device found notification and installed the naked driver from device maneger. They finally took! This tablet is pretty old so I figure SBK1, nope, command wudnt run. No harm done. Went back and did SBK2 and FINALLY! Anyway, the first thing I do on any rooted device ready for a custom rom is do a nand back up. I kept gettin the "error path not known" or sumthin. This was on rogue. No offense to them, I never liked the lay out from the epic 4g touch days. So I loaded twrp. And now im able to do a back up.
And if I could not of gotten it, yes I would have let u remotely access my comp. It was the computer though. I trashed it and got me another this morning.
HUGE FREAKIN THANX TO ALL WHO RESPONDED. I still say this tablet is the toughest ive encountered by far. THANX FELLAS
harley1rocker said:
I GOT IT! holy crap! Ive gotta windows 7 comp. It turns out, it was the computer!. I completely wiped my laptop and started over. Still failed to flash recovery. I borrowed a friends computer and wah lah. Went into apx mode, got the new device found notification and installed the naked driver from device maneger. They finally took! This tablet is pretty old so I figure SBK1, nope, command wudnt run. No harm done. Went back and did SBK2 and FINALLY! Anyway, the first thing I do on any rooted device ready for a custom rom is do a nand back up. I kept gettin the "error path not known" or sumthin. This was on rogue. No offense to them, I never liked the lay out from the epic 4g touch days. So I loaded twrp. And now im able to do a back up.
And if I could not of gotten it, yes I would have let u remotely access my comp. It was the computer though. I trashed it and got me another this morning.
HUGE FREAKIN THANX TO ALL WHO RESPONDED. I still say this tablet is the toughest ive encountered by far. THANX FELLAS
Click to expand...
Click to collapse
Glad you got it sorted.
who got the 20 dollars
Sent from my Transformer TF101 using xda premium
stesteste said:
who got the 20 dollars
Sent from my Transformer TF101 using xda premium
Click to expand...
Click to collapse
Wasn't me. But I did not respond for the $20, I am just a good guy.
No one....yet. right after i posted that i got another comp. Installed naked drivers and wah lah. APX mode was recognized . But,if any1....fredreco. thanx for the info u posted.
harley1rocker said:
No one....yet. right after i posted that i got another comp. Installed naked drivers and wah lah. APX mode was recognized . But,if any1....fredreco. thanx for the info u posted.
Click to expand...
Click to collapse
We're all here to help, it really isn't about $, for me really it's just seeing that someone cares to donate that makes my day.. It's all about the passion of android though As fred will probably tell you.
Hi all
I've had my Tf700 for a long time now. I've had it unlocked and rooted and had CROMBi before trying OMNIRom and then finally moved to KatKiss7.1 last year. All was well until today when, having enabled screen rotation, the background went a strange looking pink colour and would flicker back and forth to black. Then the WiFi started to misbehave so I rebooted it. But instead of rebooting, it just went into a bootloop.
I used power + VolumeDown to access the recovery mode and tried to get to TWRP (2.8.7.4) via the RCK option but without any luck. At that stage, all it was doing was resuming the loop. I tried booting into Android but got the same result. I tried for TWRP a few times and it always failed.
My next move was the Wipe Data option. Turned out to be a bad one. I hadn't done anything with the device in so long that I forgot about the "don't use the Wipe Data" instruction and I didn't read up before doing anything else. The device rebooted itself and then appeared to be going into TWRP - I could see the logo coming up - but my hope was short-lived as the device then proceeded to go into a bootloop where it displays the TWRP splash screen, but then reboots.
About the only thing I seem to be able to do is access APX, but I didn't know about APX or NVFlash until today when I started trying to read everything to do with anything that might help.
I run Linux on my PCs and have installed ADB so that I can try to use fastboot or adb. Neither seem to work in that nothing shows up when issuing either "fastboot devices" or "adb devices". But on a more basic level, nothing shows up in lsusb. The mouse is listed, as is my card-reader, but the TF700 isn't. The thing is, I haven't connected the device to a PC in a long time and the last time, it was windows, so I can't say for sure that the PC is definitely seeing it or not.
And so to my questions:
1) Should the TF700 show up in Linux using the lsusb command when connected via the cable. (maybe I need a new cable? maybe I need Windows )
2) If I got a new cable, is it likely that I'd be able to push a recovery image back to the device to allow me to start to rebuild?
3) When APX is available, is it possible to transplant someone elses NVFlash backups, or whatever is just enough to get it running again so that I can re-install recovery and maybe reload an earlier TWRP backup?
(I've seen instructions for the TF201, but can't see anything for the TF700)
Any help would be really appreciated.
With thanks,
Scouser27
I don't like the sound of this. This "background went a strange looking pink colour and would flicker back and forth to black" business makes me suspect a hardware failure. Maybe something got fried on the board - don't know.
1) Should the TF700 show up in Linux using the lsusb command when connected via the cable. (maybe I need a new cable? maybe I need Windows )
Click to expand...
Click to collapse
Yes, it should, something like this:
Code:
...
Bus 003 Device 009: ID 0bda:57af Realtek Semiconductor Corp.
Bus 003 Device 016: ID 0b05:4d01 ASUSTek Computer, Inc. Transformer Prime TF201 (debug mode)
Windows is not going to help you. If it doesn't connect in Linux it definitely won't in Windows....
2) If I got a new cable, is it likely that I'd be able to push a recovery image back to the device to allow me to start to rebuild?
Click to expand...
Click to collapse
Not unless you get a connection in either fastboot or adb
3) When APX is available, is it possible to transplant someone elses NVFlash backups, or whatever is just enough to get it running again so that I can re-install recovery and maybe reload an earlier TWRP backup? (I've seen instructions for the TF201, but can't see anything for the TF700)
Click to expand...
Click to collapse
No, nvflash files are device specific
If you cannot get it to boot into fastboot or get an adb connection - however briefly - it is a brick.
Install Hardinfo in Linux - it is very similar to Windows Device Manager - and open the USB page. Then reboot into TWRP. If you are lucky you may get a few seconds before TWRP loops where the PC has an adb connection and sees the tablet. If that works, follow this: http://www.transformerforums.com/fo...my-transformer-tf700-boots-only-recovery.html
Still a tiny chance but better than nothing.
If bootit.ko kicks it into the bootloader and you get fastboot you can reflash the recovery, format data in fastboot and all that good stuff.
But my guess is: No dice
Try it anyway - good practice.
I still have a couple of TF700 lying around, one with a so so screen. If you want it, you can have it for the cost of shipping. You can either swap the screens or m-boards...
PM me if you want to go that route.
Good luck
Update
Thought I'd post something in case it's useful to anyone having similar trouble to what I described. This applies to my instance of TWRP booting in a loop and never exiting until the battery was flat.
Ensure your cable is working correctly.
If it's not, you won't see anything on your pc. (I use linux and nothing was showing up in lsusb or dmesg)
If this is the case, borrow a cable if you can or invest in one. I did - best 5 Euro ever.
Get the bootit.ko file that's mentioned in a few places such as here.
While you're getting that file, read the instructions there a few times and also have a look at the details over at this page (same one @berndblb links above)
Connect your tablet and boot it. As soon as you see the TWRP logo, it's time to try to run commands.
If you use linux, you can issue all commands at once like this:
Code:
sudo adb devices; sudo adb push bootit.ko / ; sudo adb shell insmod bootit.ko
Note the "/" after "push bootit.ko" - that's not a typo. If you leave it out, it won't work.
I don't know if sudo was strictly needed, but I wanted it to work and it didn't cause any trouble.
I haven't used Windows in a long time so I don't remember if you can do the same, but you could put the various adb commands into a batch file and run that. Don't forget to drop the sudo.
If it has worked, the tablet will reboot. You should now be able to get back to the bootloader.
Follow the fastboot erase instructions at this thread.
I found it useful to write the commands as
Code:
fastboot -i 0x0b05 erase boot
The last version of TWRP that I was using was KANG TWRP
I downloaded that, extracted the blob file and flashed it:
Code:
fastboot -i 0x0b05 flash recovery boot.blob
I used that because I wanted to install TimDuru's KatKiss 7, but you could presumably install whatever Recovery you wanted and proceed as normal.
And that's it. I flashed KatKiss7 and SU and all was well again:laugh:
Big thanks go to @berndblb for his help on this - If, like me, you didn't read his posts before, you really need to read them now. And maybe, just maybe, you'll be able to recover.
Thanks to all other contributors whose post's I've linked or whose work contributes to this solution - you've all just saved me having to buy a new tablet. Nice one!:victory: