[Q] Bootloop after flashing TWRP. Please help. - Transformer TF300T Q&A, Help & Troubleshooting

I was on locked on stock OTA JB.
I unlocked a few days ago, then last night flashed TWRP. Created a nandroid, then rooted.
Today I've spent several hours downloading ROMs, doing Titanium backups, surfing forums, backing up my personal files etc. i.e. using my tablet normally without problems.
I decided it was time to flash a ROM so booted in TWRP to create a fresh nandroid. Then when it finished I rebooted the system with the plan to copy the nandroid to my pc.
The tablet booted, but then after 30s or so rebooted. It's now stuck in this boot loop. So I tried a cold boot, and then restoring the latest nandroid and the problem persists. I'm currently trying to restore the pre root nandroid I made.
To recap - I am on stock OTA JB, with TWRP v2.3.1.0 recovery. Any thoughts?
Ok just to update - the pre root nandroid seems to be stable at the moment. So... What to do?
Should I reflash the recovery? Try a different recovery?
Any ideas why the nandroid would be borked when the system seemed stable when I created it?
Sent from my Galaxy Nexus using Tapatalk 2

Question: Does TWRP actually root the TF300? Mine is unlocked but I am looking for the easiest way to root the device.

No it doesn't, it just replaces stock recovery and allows you to gain root.
You could start your own thread. Or, you could read the thread in Android Development that gives clear instructions for noobs to gain root and install TWRP or CWM.
Sent from my Galaxy Nexus using Tapatalk 2

which ROM were you trying to flash? was it a JB rom?
bshpmark said:
Question: Does TWRP actually root the TF300? Mine is unlocked but I am looking for the easiest way to root the device.
Click to expand...
Click to collapse
After you install TWRP, you just need to flash a root zip file with TWRP to gain root..

bshpmark said:
Question: Does TWRP actually root the TF300? Mine is unlocked but I am looking for the easiest way to root the device.
Click to expand...
Click to collapse
Flash a rooted custom rom. ull gain root + rom easily

mike-y said:
which ROM were you trying to flash? was it a JB rom?
Click to expand...
Click to collapse
Since this thread got immediately hijacked i'm not sure but I'm going to assume this part of your post was aimed at me...
I wasn't trying to flash a ROM at all. I hadn't even got that far. All I'd done was flash the recovery, root it and then create a nandroid. It was creating the nandroid that seemed to trigger the boot loop, even though that makes zero sense.
Sent from my ASUS Transformer Pad TF300T using Tapatalk 2

can you get back into fastboot connected to your PC?
I'd try to re-flash TWRP. Also make sure you are using the JB version, not the ICS version.
http://teamw.in/project/twrp2/97
I just unlocked and flashed TWRP on my tf300 (with the OTA JB update) this morning, and everything is working fine. I also flashed a root file without any issue.

I reflashed TWRP and re-rooted it seems to be OK.
Then I found I couldn't get any ROMs to work - they all froze at the boot screen. The solution to that problem lies in flashing the US update of JB rather that the WW. Now I'm running Hydro with Untermensch's kernel.
One thing I did notice with TWRP 2.3 is I get the error "can't mount /storage" in the log whenever I do anything. A bit of research suggests this might be an issue with TWRP 2.3, not present in 2.2. I wonder if that is what was causing the boot loop issue I had previously.
I can't seem to find a blob of 2.2 to downgrade to so I'm living with it for now and hope it's not going to cause problems down the line.
Sent from my ASUS Transformer Pad TF300T using Tapatalk 2

Good that TWRP always using the same names for a DL Link. So here is the 2.2 for JB Bootloader
If you are looking for ICS just edit the dl link .
http://techerrata.com/file/twrp2/tf300t/openrecovery-twrp-2.2.2.0-tf300tg-JB.blob

Related

Flashing different roms, whats the deal???

Ok so i've finally decided im ready to unlock and flash. My question is this: whats the deal with returning to stock and redoing everything on certain roms? Can anyone explain to me the variables here?
Sent from my ASUS Transformer Pad TF300T using xda app-developers app
once you have your device rooted and have a recovery installed, make a nandroid back up your stock rom, flash whatever rom you want, then if you need to go back to stock rom, just flash the nandroid back up you made. If you want to go 100%, then you will have to find the stock recovery image, and flash that over your custom recovery as well, then just use OTA Rootkeeper... and temp unroot your phone... and viola, your 100% stock again.... but if you plan to go back to 100% stock then DO NOT UNLOCK YOUR BOOTLOADER!! there is no way to lock it again once you unlock it.
I think it's worth while to note
currently the only custom recovery that is able to flash stock is CWM
TWRP is not able to flash a stock rom
KAD79 said:
I think it's worth while to note
currently the only custom recovery that is able to flash stock is CWM
TWRP is not able to flash a stock rom
Click to expand...
Click to collapse
If you flash a stock ROM using CWM you will lose all data on your device, including any backups you made using CWM. So be sure to backup those files to your PC (they're located in the clockworkmod/backup folder of your internal storage) before flashing the stock Asus ROM.
I've been changing my ROM's throughout the day and have basically memorized the process of flashing CWM, root, and ROM's by now
KAD79 said:
I think it's worth while to note
currently the only custom recovery that is able to flash stock is CWM
TWRP is not able to flash a stock rom
Click to expand...
Click to collapse
TWRP can flash stock. I've done it.
Sent from my SGH-I897 using xda premium
Ive read about problems reflashing ROMs when youre on the CM or AOKP. Need to return to stock, then flash other ROMs, dunno why exactly. So is it enough just to restore my stock nand backup or do I need to do something differently? :good:
This is exactly what im talking about. What are the rules when coming from cyan to a stock flavor?
Sent from my ASUS Transformer Pad TF300T using xda app-developers app
So lets say right now im ready to unlock and root. I would want to unlock the device, then root, then flash CWM (not twrp) so i could still retrain (and boot in to without reinstalling) my original rom? Because i still want to titanium my apps.
Sent from my ASUS Transformer Pad TF300T using xda app-developers app
not sure if I understand your question right, but yeah you can use your stock rom when you root or flash cwm. Untill you wont wipe anything within CWM, theres no reason you coulndt use it. But dont forget to do backup of your stock mate.
I think part of the confusion is defining what "stock" means, and I've got two different views on it over the past few days:
COMPLETE STOCK means flashing ASUS' original stock firmware, which completely wipes out everything on your tablet (including your nandroid backups) and CWM and takes you back to a fully stock tablet (except it will still have unlocked bootloader). From here, if you want to install ROM's like CleanROM or Hydro you have to re-flash CWM each time, then flash the appropriate ROM.
MODIFIED STOCK would be making a nandroid backup of your stock settings as soon as you flash the stock ROM, install CWM, then back it up and you can revert to it accordingly. I don't know if this would break things when you tried to flash Clean/Hydro and so maybe someone can clarify.
I wanted to try both hydro and cleanrom so I spent many hours yesterday flashing between stock/modified stock. Its kind of a pain, but all part of the learning process.
And one thing I want to note both for myself and for anyone else: if you flash stock without removing CWM it'll give you the broken bootloader logo (android on his back w/ exclamation point), and my solution has just been to do a 'wipe data' from the fastboot menu and the stock will work fine. What I mean by this is I've done this at least three times, where I flash STOCK from within CWM and when I try to boot into recovery, I'll get that android. That's because STOCK completely erases everything including CWM so in order to restore the normal operating procedure, you just need to 'wipe data' from within the tablet.
Hope my understanding of these situations is correct, if not anyone can feel free to correct me
People like to experiment with their tablet, they get easily bored with the same thing.
So they go back to stock and flash another rom like Hydro which is stock based because when you flash CM or AOKP it won't let you just flash to Hydro.
KAD79 said:
I think it's worth while to note
currently the only custom recovery that is able to flash stock is CWM
TWRP is not able to flash a stock rom
Click to expand...
Click to collapse
NOT TRUE!
It should be noted that TWRP is now more functional than CWM. TWRP can now flash stock ROMs just fine. It can now restore complete nandroids, including /boot, and it can now flash from and store to the external SD card. It was just recently updated for this, which is why all the information until now has said to use CWM to flash the stock ROM. So, go ahead and use TWRP. It's perfect now.

Return to stock on JB Custom Rom?

Hello,
I was having many issues with my TF300T Tablet. Such as freezing and random rebooting, but no s.o.d. So I decided to put a custom rom on it. Since I was running Jelly Bean OTA, I flashed Hydro ROM. It did not fix the issues and the freezing became even more frequent. I have decided to send it back because the place I bought it from accepts it even when its unlocked. So can anyone tell me how to go completely stock, recovery and all? And if possible, to re-lock the bootloader?
Thanks!
P.S. if anyone can tell me how to fix the rr issues that would be great, i looked it up but no solution worked.
Just simply DL stock firmware from Asus http://support.asus.com/Download.aspx?SLanguage=en&m=ASUS Transformer Pad TF300T&p=20&s=16
Flash that bad boy
And boom.. all stock
stock recovery
unrooted
...as far as re-locking, there's no remedy for that atm
Sent from my Nexus S 4G using Tapatalk 2
Nope, CWM says installation aborted. I used the cwm from the guide thread, not sure of the version atm but it has a gray background and cyan menus.
i would flash twrp mate then wipe everything and flash the stock firmware (but remember to extract the download once) then re flash twrp and then root job done mate
Thanks man for teling me to extract the zip file. Now i can reflash to stock, and send this back. Its a great tablet, ruined by its random rebooting issues.

[Q] ROM Problem : Stuck on boot logo

This is the story
I first installed Unlocked bootloader from asus, CWM recovery for tf300t, and then i used the update.zip to gain root access
I downloaded the CM nightly build, used CWM to backup, then flashed the CM ROM.
It was stuck on CM boot logo for about 30 min, so i restarted and cleared my cache.
I tried flashing again, and it was still stuck on boot.
I then restored to my backup, and now it is stuck on the original ASUS boot animation.
What do I do?
confuz said:
This is the story
I first installed Unlocked bootloader from asus, CWM recovery for tf300t, and then i used the update.zip to gain root access
I downloaded the CM nightly build, used CWM to backup, then flashed the CM ROM.
It was stuck on CM boot logo for about 30 min, so i restarted and cleared my cache.
I tried flashing again, and it was still stuck on boot.
I then restored to my backup, and now it is stuck on the original ASUS boot animation.
What do I do?
Click to expand...
Click to collapse
restore with cwm,ifyou can, to earlier version,working
then remove ClockWorkMod Recovery, by fastbooting TWRP instead...much more reliable (team win recovery)
then to root, theres a theres a batch script tool, that,when tablet is connected to pc, will run and reboot the tablet several times, rooting it.
ill look for the link, its in the forums here, debug,defug..something
there are other methods,that worked the best for me...
CM had been having issues, install CleanROM 2.1 HAS THE JB UPDATE V13 in it. its smooth
CyberdyneSystems said:
restore with cwm,ifyou can, to earlier version,working
then remove ClockWorkMod Recovery, by fastbooting TWRP instead...much more reliable (team win recovery)
then to root, theres a theres a batch script tool, that,when tablet is connected to pc, will run and reboot the tablet several times, rooting it.
ill look for the link, its in the forums here, debug,defug..something
there are other methods,that worked the best for me...
CM had been having issues, install CleanROM 2.1 HAS THE JB UPDATE V13 in it. its smooth
Click to expand...
Click to collapse
I have tried recovering with CWM, and restoring to factory settings.
Both didn't work.
confuz said:
I have tried recovering with CWM, and restoring to factory settings.
Both didn't work.
Click to expand...
Click to collapse
try this thread...otherwise...you need to RMA it to asus,or the store you bought it from
http://www.scottsroms.com/showthread.php/1637-Tf300t-sku?p=13102#post13102
I am having the same issue installing any ASOP roms on my tf300t.
I have the TWRP recovery, gained root by flashing.
I can install ASUS based roms like CleanROM fine, but I cannot flash any ASOP roms like CM10.
Just curious on what is preventing us from doing this. Especially when our devices are supposedly "unlocked" with custom recoveries and root.
If this device still continues to be this locked up, I might just have to sell mine when the GN2 comes out.
k4killer said:
I am having the same issue installing any ASOP roms on my tf300t.
I have the TWRP recovery, gained root by flashing.
I can install ASUS based roms like CleanROM fine, but I cannot flash any ASOP roms like CM10.
Just curious on what is preventing us from doing this. Especially when our devices are supposedly "unlocked" with custom recoveries and root.
If this device still continues to be this locked up, I might just have to sell mine when the GN2 comes out.
Click to expand...
Click to collapse
probably the bootloader, looks for a simple command,file....its not there,so its stuck in a loop
confuz said:
I have tried recovering with CWM, and restoring to factory settings.
Both didn't work.
Click to expand...
Click to collapse
First declare your bootloader. Have you ever been on a jb-rom, stock or otherwise?
Looking at git for cm it appears the kernel is 2.6, so I would expect that is not a jb rom.
cwm has some issues on this unit.
get into cwm and use fastboot to flash twrp for the proper bootloader you have.
or get into fastboot by use of power and volume down
at that point you can twrp a rom into place; probably not to restore your backup as twrp and cwm have issues reading each others backups.
Good Luck!
Note: If you can power up and access recovery (cwm in your case) you are not bricked and should be able to recover. I have as well as many others. Take your time and go a step at a time! Make back ups and make sure you have fastboot and adb access to your unit! If you are still ics bootloader consider nvflash once you have this mess sorted.
k4killer said:
I am having the same issue installing any ASOP roms on my tf300t.
I have the TWRP recovery, gained root by flashing.
I can install ASUS based roms like CleanROM fine, but I cannot flash any ASOP roms like CM10.
Just curious on what is preventing us from doing this. Especially when our devices are supposedly "unlocked" with custom recoveries and root.
If this device still continues to be this locked up, I might just have to sell mine when the GN2 comes out.
Click to expand...
Click to collapse
This is a known problem... once u get the OTA asus jb update, u can no longer flash any aokp or cyanogen jb roms. This is due to the kernel in these roms which are based on ics but since uve installed new ota jb bootloader it will not work and get stuck on boot screen. Restore in recovery will not work either. U need to download latest asus firmware and flash it then fastboot a recovery (i recommend twrp) and reroot.
Dfanzz said:
This is a known problem... once u get the OTA asus jb update, u can no longer flash any aokp or cyanogen jb roms. This is due to the kernel in these roms which are based on ics but since uve installed new ota jb bootloader it will not work and get stuck on boot screen. Restore in recovery will not work either. U need to download latest asus firmware and flash it then fastboot a recovery (i recommend twrp) and reroot.
Click to expand...
Click to collapse
Ah, ok. I have the JB OTA update so i have the latest bootloader :/
I restored my nandroid of stock and it worked fine.
Just flashed CleanROM which is running great. Cant wait till the CM team gets the JB bootloader worked out as i have always loved being ASOP. Any info on when it might happen?
k4killer said:
Ah, ok. I have the JB OTA update so i have the latest bootloader :/
I restored my nandroid of stock and it worked fine.
Just flashed CleanROM which is running great. Cant wait till the CM team gets the JB bootloader worked out as i have always loved being ASOP. Any info on when it might happen?
Click to expand...
Click to collapse
Great that ur nandroid worked! I know they r working on it... dont really have a time frame... just be on the lookout

[Q] Help understanding my current rom/recovery situation

Hi,
Sorry for the noob question here, I've managed to get myself very confused as to the state of my tf700t.
Some time ago I unlocked my bootloader and rooted my device (stock ROM with su I believe) and installed TWRP. All was well, but of course I couldn't get Android 4.2 OTA, so given I don't really use root much I decided to try to get back as close to stock as possible. I downloaded the 10.4.4.20 firmware from Asus and flashed it in using TWRP, so far so good.
Still no option to OTA, so I figured I would download and flash 10.6.1.14 instead and do the same thing, but I have problems! If I boot into recovery, instead of TWRP I get the android logo with the open door and spinning blue icosahedron. Poor old android then keels over backwards with an open chest and an alert sign. The tablet then reboots normally.
Question 1: Have I overwritten my recovery when I flashed the stock ROM? - I'm not sure if the ROMs should even overwrite the recovery partition; if this shouldn't happen, are there any clues as to what I have done?
The system actually recognises that I have 10.6.1.14 on my SD card and offers to install it, but that reboots and gives me the same dead android lying on his back. Question 2: Could this be related to the (broken?) recovery image, or could it just be a duff download of the firmware?
I suppose the bug question is how should i proceed? Should I look for a way to re-root the device, reinstall TWRP (maybe using goomanager) and flash again or am I just hopelessly misunderstanding where I am? Many thanks for any steers you chaps can offer.
Anatosuchus said:
Hi,
Sorry for the noob question here, I've managed to get myself very confused as to the state of my tf700t.
Some time ago I unlocked my bootloader and rooted my device (stock ROM with su I believe) and installed TWRP. All was well, but of course I couldn't get Android 4.2 OTA, so given I don't really use root much I decided to try to get back as close to stock as possible. I downloaded the 10.4.4.20 firmware from Asus and flashed it in using TWRP, so far so good.
Still no option to OTA, so I figured I would download and flash 10.6.1.14 instead and do the same thing, but I have problems! If I boot into recovery, instead of TWRP I get the android logo with the open door and spinning blue icosahedron. Poor old android then keels over backwards with an open chest and an alert sign. The tablet then reboots normally.
Question 1: Have I overwritten my recovery when I flashed the stock ROM? - I'm not sure if the ROMs should even overwrite the recovery partition; if this shouldn't happen, are there any clues as to what I have done?
The system actually recognises that I have 10.6.1.14 on my SD card and offers to install it, but that reboots and gives me the same dead android lying on his back. Question 2: Could this be related to the (broken?) recovery image, or could it just be a duff download of the firmware?
I suppose the bug question is how should i proceed? Should I look for a way to re-root the device, reinstall TWRP (maybe using goomanager) and flash again or am I just hopelessly misunderstanding where I am? Many thanks for any steers you chaps can offer.
Click to expand...
Click to collapse
The stock Asus firmware includes bootloader, kernel, recovery and apps. You have flashed the stock recovery. Head over to the twrp thread or my ROM thread in my sig to see how to get twrp 2.5 onto your tab.
Anatosuchus said:
Hi,
Sorry for the noob question here, I've managed to get myself very confused as to the state of my tf700t.
Some time ago I unlocked my bootloader and rooted my device (stock ROM with su I believe) and installed TWRP. All was well, but of course I couldn't get Android 4.2 OTA, so given I don't really use root much I decided to try to get back as close to stock as possible. I downloaded the 10.4.4.20 firmware from Asus and flashed it in using TWRP, so far so good.
Still no option to OTA, so I figured I would download and flash 10.6.1.14 instead and do the same thing, but I have problems! If I boot into recovery, instead of TWRP I get the android logo with the open door and spinning blue icosahedron. Poor old android then keels over backwards with an open chest and an alert sign. The tablet then reboots normally.
Question 1: Have I overwritten my recovery when I flashed the stock ROM? - I'm not sure if the ROMs should even overwrite the recovery partition; if this shouldn't happen, are there any clues as to what I have done?
The system actually recognises that I have 10.6.1.14 on my SD card and offers to install it, but that reboots and gives me the same dead android lying on his back. Question 2: Could this be related to the (broken?) recovery image, or could it just be a duff download of the firmware?
I suppose the bug question is how should i proceed? Should I look for a way to re-root the device, reinstall TWRP (maybe using goomanager) and flash again or am I just hopelessly misunderstanding where I am? Many thanks for any steers you chaps can offer.
Click to expand...
Click to collapse
Yes, you did. Everytime you install stock file of any version, it will update your bootloader, rom, and kernel. Just use Motochopper to root your device and reinstall your custom recovery with goomanager.
No, it is stock recovery. Just reroot with motochopper and install custom recovery with goomanager. Have fun. :good:
Right, thanks! If I want to stay completely stock I just need to figure out why the newer update is failing. Could be the file name now I think about it.
Otherwise I'll re-root and re-TWRP...
Anatosuchus said:
Hi,
Sorry for the noob question here, I've managed to get myself very confused as to the state of my tf700t.
Some time ago I unlocked my bootloader and rooted my device (stock ROM with su I believe) and installed TWRP. All was well, but of course I couldn't get Android 4.2 OTA, so given I don't really use root much I decided to try to get back as close to stock as possible. I downloaded the 10.4.4.20 firmware from Asus and flashed it in using TWRP, so far so good.
Still no option to OTA, so I figured I would download and flash 10.6.1.14 instead and do the same thing, but I have problems! If I boot into recovery, instead of TWRP I get the android logo with the open door and spinning blue icosahedron. Poor old android then keels over backwards with an open chest and an alert sign. The tablet then reboots normally.
Question 1: Have I overwritten my recovery when I flashed the stock ROM? - I'm not sure if the ROMs should even overwrite the recovery partition; if this shouldn't happen, are there any clues as to what I have done?
The system actually recognises that I have 10.6.1.14 on my SD card and offers to install it, but that reboots and gives me the same dead android lying on his back. Question 2: Could this be related to the (broken?) recovery image, or could it just be a duff download of the firmware?
I suppose the bug question is how should i proceed? Should I look for a way to re-root the device, reinstall TWRP (maybe using goomanager) and flash again or am I just hopelessly misunderstanding where I am? Many thanks for any steers you chaps can offer.
Click to expand...
Click to collapse
The Android on his back is your stock recovery and it does not find a valid update file.
Weird is, that your system seems to see the 10.6.1.14 file (I assume you get an automatic notification and click "install" or "update" ) and then the recovery does not seem to install it...?
You could have a bad download, so try that first if you want to get the latest stock rom, or you can try to rename the downloaded file to EP201_768_SDUPDATE.zip, put it on your microSD card and reboot into recovery. The recovery should recognize the update file and start flashing it.
But since you are unlocked anyway - why don't you give CromiX a try? It runs so much better than the stock rom!
And for that, yes you would have to root again using the Motochopper tool and then install TWRP 2.5 with Goo Manager.
If you go that route make sure you flash the latest bootloader from the OP of the CROMiX thread first, boot back into your old rom once before you flash CROMiX.
Sent from my ASUS Transformer Pad TF700T using Tapatalk HD
Alright, I'm convinced - I'll try going totally custom! Presumably CromiX handles the external keyboard and touch pad properly?
Anatosuchus said:
Alright, I'm convinced - I'll try going totally custom! Presumably CromiX handles the external keyboard and touch pad properly?
Click to expand...
Click to collapse
It's based on the stock rom, cleaned up and tweaked and optimized. Everything works - and better than on stock! I recommend selecting the option to disable fsync during installation. It boosts performance considerably, and since the rom is totally stable, the "risk" is neglible.
You will love it!
Sent from my ASUS Transformer Pad TF700T using Tapatalk HD
OK, ChromiX installed! Looks interesting already, will tinker with it over the next couple of days.

How can I get root and custom ROMming back?

Hi
At the weekend I tried to update my TF300T from CM10.1 to CM10.2. That didn't work as I ended up in a boot loop. Then I thought, maybe I need to flash the latest system blob.
So I did that, only to find that I then couldn't install anything from zip or sd card as the recovery would not mount anything at all. Still got fastboot, so I've tried TWRP 2.6. TWRP 2.5, TWRP 2.4 and CWM, none of them will mount anything at all.
So I find myself with stock ROM, but no way of rooting or installing any custom ROMs.
I'm sure I've made a bloop somewhere, so all suggestions to resolve welcome!
Thanks
Rob
What is your bootloader? Sometimes, if you reflash the same recovery, it *may* work properly the second time around.
I am using TWRP 2.6 with my 127.5 bootloader, just for your knowledge.
aarsyl said:
What is your bootloader? Sometimes, if you reflash the same recovery, it *may* work properly the second time around.
I am using TWRP 2.6 with my 127.5 bootloader, just for your knowledge.
Click to expand...
Click to collapse
That was the tip I needed - I knew I had the right bootloader but I had downloaded the wrong TWRP (I had flashed the JB version instead of the 4.3 version). Doh!
Now flashed CM10.2 and is running Android 4.3. CPU-Z tells me I'm rooted though at the moment I can't get any root apps to work with SuperSU. I'll leave that for another day!
Rob

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