[Q] What's the best upgrade method? - Transformer TF300T Q&A, Help & Troubleshooting

I have my tablet still on ICS, locked, all stock ROM, except I used a root exploit for ICS to have root.
What I would like to know; what is the best method for me to be able to happily try out different ROM's without fluffing up and bricking my tablet?
I know I need to unlock, install customer recovery. Is NVFlash backup necessary?
I've also got a HTC Desire HD which I've flashed with many ROM's without ever running into issues.
The Asus TF300 seems different and I've seen too many posts where people have bricked their devices.

Is it true that flashing a ROM designed for one version of the bootloader, on a device with a different version will brick your device?
Also it is true that certain wipes from recovery brick your device?

psjw12 said:
Is it true that flashing a ROM designed for one version of the bootloader, on a device with a different version will brick your device?
Also it is true that certain wipes from recovery brick your device?
Click to expand...
Click to collapse
Yes flashing a rom on a 4.2 bootloader that was made to work on a 4.1 bootloader will most likley cause a bootloop or a softbrick but should be able to be recovered in most cases.
The main cause of bricked devices atm is flashing the incorrect recovery for your bootloader version. This is flashing a non-4.2 recovery on a 4.2 bootloader, causes a fastboot flash brick - more info on this in my how-to in sig below.
I'm not sure about bricking your devices using wipes in recovery but the wipe data option in the bootloader menu will in most cases brick the device.
Not sure what the best method is but I pefer using the fastboot method over the twrp method but it's up to you, however the fastboot method does seem to work even with a locked device (but try at own risk).
It's up to if you want to do the NVFlash backup, it is suposed to be a fail safe in case of brick, although this does seem to depend on how the device was bricked. ie does not seem to work with the fastboot flash brick.
If you need more info or would like a step-by-step on how to unlock and upgrade for your situation just let me know.

pjc21 said:
It's up to if you want to do the NVFlash backup, it is suposed to be a fail safe in case of brick, although this does seem to depend on how the device was bricked. ie does not seem to work with the fastboot flash brick.
Click to expand...
Click to collapse
How is a fastboot flash brick caused?
pjc21 said:
If you need more info or would like a step-by-step on how to unlock and upgrade for your situation just let me know.
Click to expand...
Click to collapse
Thank you. I understand what to do but I don't feel confident. I've been happy flashing my HTC Desire HD for a long time and never had issues but I've seen so many bad stories on these forums it's really making me uncomfortable. I really want to go ahead and flash my device as it's slow and keeps crashing, and I want to be able to flash different ROM's without breaking a sweat. But I'd rather have a slow crashing device than a bricked one.

pjc21 said:
ie does not seem to work with the fastboot flash brick.
Click to expand...
Click to collapse
Sources? I've never seen anyone with NVFlash even say they experienced any bricks. I don't see why it wouldn't be recoverable. As far as I've seen, everyone who succumbed to the "4.1 recovery on 4.2 bootloader" brick had no NVFlash backups. Unless you're talking about a different brick, in which case you lost me. NVFlash should work just fine with any brick. Unless you brick it while restoring your NVFlash backups, in which case, you're boned.

EndlessDissent said:
Sources? I've never seen anyone with NVFlash even say they experienced any bricks. I don't see why it wouldn't be recoverable. As far as I've seen, everyone who succumbed to the "4.1 recovery on 4.2 bootloader" brick had no NVFlash backups. Unless you're talking about a different brick, in which case you lost me. NVFlash should work just fine with any brick. Unless you brick it while restoring your NVFlash backups, in which case, you're boned.
Click to expand...
Click to collapse
No sources, I was just going off a few comments in this thread but they don't state weather they did actually have nvflash backup or not, just that there was no fixing with nvflash.
I agree with you that as long as you can boot to apx and have nvflash backup and don't brick during nvflash restore then you should be able to unbrick from any brick.
Sorry for any confusion here.

pjc21 said:
No sources, I was just going off a few comments in this thread but they don't state weather they did actually have nvflash backup or not, just that there was no fixing with nvflash.
Click to expand...
Click to collapse
Where? I went through the thread backwards from the last page back to page 7 or 8. Only one person even mentioned NVFlash, and he was asking if he could use NVFlash backups from a different tablet because he didn't have any of his own (that's not possible because of the way the bootloaders are signed). I also didn't see anyone actually tell him it wasn't possible. He was the third to last post in the thread.
So nobody in that thread (after page 7, anyway) said anything about NVFlash let alone that it doesn't work. NVFlash should work just fine to fix the fastboot bricks, just like any other brick.
Edit: So one other guy in a random post just kind of said NVFlash wouldn't work, nothing else - no details at all. A couple people asked him for details and proof, but he never replied. I have a feeling he meant NVFlash couldn't help because he didn't have any backups. If you have the NVFlash backups, you can recover from pretty much any brick.

Thank you guys for your help.
So does the following plan sound safe to you?
1. Backup my device (apps, data and sdcard)
2. Unlock with Asus unlock tool (v7 right?)
3. Do NVFlash Backup
4. Do official ASUS upgrade to JB 4.1 (I would do this by extracting the download from their site onto my SD card right? Because once unlocked I won't get offered any updates)
5. Once on JB, flash the correct 4.1 TWRP onto my recovery via Fastboot
6. Get Flash happy with my 4.1 compatible ROM's, do a few data wipes in between.

Sounds good to me. As long as you check version numbers and filenames carefully, there shouldn't be a problem.

What about on an Unlocked device
Back in March when Jelly Bean 4.2 came out I went from a rooted and unlocked machine to the newest stock os (10.6.1.8) I am looking to upgrade to the official 10.6.1.15.3 that is available on the ASUS site. Is it as simple as downloading the ASUS updateLauncher and putting it on my sd card and running it from the tablet? Or am I at risk being on an unlocked device, do I need to add any other steps?

teedoe said:
Back in March when Jelly Bean 4.2 came out I went from a rooted and unlocked machine to the newest stock os (10.6.1.8) I am looking to upgrade to the official 10.6.1.15.3 that is available on the ASUS site. Is it as simple as downloading the ASUS updateLauncher and putting it on my sd card and running it from the tablet? Or am I at risk being on an unlocked device, do I need to add any other steps?
Click to expand...
Click to collapse
From what I know you should be able to upgrade from stock version to a newer stock version without any issues. The only thing I'm not sure about is if that method will wipe all your data. I'd advise a backup first.

psjw12 said:
From what I know you should be able to upgrade from stock version to a newer stock version without any issues. The only thing I'm not sure about is if that method will wipe all your data. I'd advise a backup first.
Click to expand...
Click to collapse
Well now I am stuck, here is what I tried without success.
Backed up my data
Downloaded the newest file from ASUS - 10.6.1.15
Placed file on my internal SD
Renamed it to US_epad-user-10.6.1.15.3.zip
System Update is detected so I tried to run it from the OS - but it fails, gives me a Unknown Error (2) and restores itself to previous. I tried it twice with no luck.
Any idea how I can get this file to update.
Thanks,

teedoe said:
Well now I am stuck, here is what I tried without success.
Backed up my data
Downloaded the newest file from ASUS - 10.6.1.15
Placed file on my internal SD
Renamed it to US_epad-user-10.6.1.15.3.zip
System Update is detected so I tried to run it from the OS - but it fails, gives me a Unknown Error (2) and restores itself to previous. I tried it twice with no luck.
Any idea how I can get this file to update.
Thanks,
Click to expand...
Click to collapse
Did you remove any apps or system files? If your ROM isn't 100% exactly stock before the update, the update will fail.

It was a simple mistake, I just needed to extract the zip file I downloaded from ASUS one time and then transfer it to my SD card. Worked perfectly after that and I did not lose any data or apps.
Thanks to all on the forums for your advice and help!

Related

[Q] Is is Possible to Downgrade from 3.2?

I read some posts about how to downgrade the transformer's firmware, but these were all pretty old and when I followed these steps they didn't work. I was wondering if it is still possible to downgrade from 3.2 to 3.1 build 8.4.4.11.
Thanks
one way would be to follow eepad unroot thread to go back to stock 8.4.4.5 and do microSD card update to stock 8.4.4.11
Which recovery do you have?
There is an update for 8.4.4.11 on the ASUS website. This is NOT the OTA udpate. This is a zipped blob that you can flash from the stock recovery. If you are rooted with CWM, I think it might flash through the staging partition.
gee one said:
Which recovery do you have?
There is an update for 8.4.4.11 on the ASUS website. This is NOT the OTA udpate. This is a zipped blob that you can flash from the stock recovery. If you are rooted with CWM, I think it might flash through the staging partition.
Click to expand...
Click to collapse
I have the stock recovery.
I think you can download the 84411 update from the ASUS website and flash it with the stock recovery.
It is not the OTA, but a full system that will over-write your system files. I think you unzip the file and copy the whole ASUS folder to your SD card. Insert your SD card and it will recognize and prompt you for the update. To be clear, you should have something like /ASUS/Update/US_eeepad....8.4.4.11.zip on your sdcard. It will recognize it when it is inserted.
Double check this and flash at your own peril.... it might not let you downgrade, in which case, there are 2 unroot guides in the dev section.
i want to do this, is the SD card 100% needed? i dont have one right now
Sorta- the sdcard would make it easy, but I think you could extract the pieces and flash them via nvflash.
If you are rooted, you can "flash" them via adb by copying the blob onto the staging partition.
why downgrade? it not needed to root or anything, so am i missing someting?
Have you tried nvflash? That seems to be the best way, but be sure to backup data, I got titanium backup and coped the data to my sdcard
Sent from my revolver!
since few weeks ago my TF its been having problem of deep sleeping and will turn on whenever he wants or when battery has 0% but my friend TF which is stock and bought from the same place and time i did still has 3.1 8.4.4.5.2 build is just fine so i wanted to try downgrading
You might also consider reflashing the ROM you are using now. I did notice some odd SOD issues from a bad flash. I had other issues as well- the screen would dim if I tried to follow a link in an email. I forget the actual cause, but it was fixed when I reflashed the right parts back in.
sorry im kinda newb about this.... how do i know what kind of ROM im using and how do i reflash it?
xtonyx06 said:
sorry im kinda newb about this.... how do i know what kind of ROM im using and how do i reflash it?
Click to expand...
Click to collapse
There is no exact method of knowing, but you can looking in settings/about tablet and look at the kernel version and build number. Then cross reference them with this thread. You might have a custom rom, in which case it might have the name in the build number.
You might have a bad flash. You could try charging the batttery completely (overnight) and then reflashing. If you are having issues, it might be easier to flash a custom ROM such as Prime 1.9.
http://forum.xda-developers.com/showthread.php?t=1251044
Be sure to back up any important data since nvflash will erase everything.

[I9020A] Nexus S, Master Clear?

Hi everyone... I've tried searching and seen references to this kind of thing, but no download links or guides...
So I've got my Nexus S (bootloader unlocked, rooted, stock 2.3.4 until attempting the following, I have no Sim card in this phone), and I tried to flash 2.3.6, and while the update appeared to run just fine, the wifi won't turn on, just gives "error". So I attempted several things, reflashing the update, flashing the 4.04 update (which was the original point), etc, but they all give the following; installation aborted, assert failed, error in xxx.zip, "status 7".
Anyways... I'm a bit at a loss, I've never had this problem, or any problems flashing ROMs on other phones or updates. It seems no update.zip, or any .zip, will install. Back in my captivate days, there was a very handy program called Odin, and it had a master clear functionality that brought you back to the stockest of stock. Ideally... is there a tool like this for the Nexus S? I don't care about whether or not it re-locks the bootloader, I can unlock it again in just a couple minutes... but I need help.
I've read guides about "return to stock" but they all involve flashing a .zip. I need a way to push past that, and get back to 2.3.4, or alternatively, a way to completely reinstall 2.3.6.
I know an Odin exists for the Nexus S, but is there a way to use that to reset to stock?
Thank you so much anyone who can help...
Do you see an android and exclamation mark as you enter recovery? This means you have stock recovery and you cannot flash anything that hasn't been signed by google here. Stock is flashed on each boot on a stock ROM, you need to rename/delete /system/etc/install-recovery.sh to stop this.
If you don't have stock recovery, update to the latest CWM (touch or not is irrelevant) and try again. It's recommended to do a full wipe (data/factory reset, format /system and optionally format /boot) when doing a major ROM change (ie, CM to non-CM, GB to ICS, etc), and failure to do so could leave you with some interesting problems like that wifi issue.
And as always, make sure you backup properly before flashing -anything-.
edit to answer more questions: Odin is available for the Nexus S but near-useless. Fastboot can do just as much, and there are official fastboot images released by google to bring you back to a pure stock state. You'll just need an unlocked bootloader to do that, though you can relock straight afterward with no repercussions.
Harbb said:
Do you see an android and exclamation mark as you enter recovery? This means you have stock recovery and you cannot flash anything that hasn't been signed by google here. Stock is flashed on each boot on a stock ROM, you need to rename/delete /system/etc/install-recovery.sh to stop this.
If you don't have stock recovery, update to the latest CWM (touch or not is irrelevant) and try again. It's recommended to do a full wipe (data/factory reset, format /system and optionally format /boot) when doing a major ROM change (ie, CM to non-CM, GB to ICS, etc), and failure to do so could leave you with some interesting problems like that wifi issue.
Click to expand...
Click to collapse
Heh, yeah I guess I should have wiped previous to running this upgrade. I guess I was hoping data would preserve, because theoretically it should have been just like the Google OTA.
And I have CWM... I'm not sure if it is the latest version, but the phone can't get any data connectivity so I can't update it.
Harbb said:
edit to answer more questions: Odin is available for the Nexus S but near-useless. Fastboot can do just as much, and there are official fastboot images released by google to bring you back to a pure stock state. You'll just need an unlocked bootloader to do that, though you can relock straight afterward with no repercussions.
Click to expand...
Click to collapse
Ok, so fastboot is my solution. I've used that to unlock my bootloader, but little else (on a Mac, because terminal is super easy to use, but I've got PC access too). I've found the Google fastboot images, do you (or anyone reading this) know of a good fastboot image flashing guide?
Dareoth said:
Heh, yeah I guess I should have wiped previous to running this upgrade. I guess I was hoping data would preserve, because theoretically it should have been just like the Google OTA.
Click to expand...
Click to collapse
Some people supposedly had troubles with the ICS update and keeping all data as-is, though i've not experienced it myself, but it is definitely possible and with such a big update, if it's in your power to start fresh it is always the best option. It was more of a general statement, not directed at your situation - something to keep in mind
Dareoth said:
And I have CWM... I'm not sure if it is the latest version, but the phone can't get any data connectivity so I can't update it.
Click to expand...
Click to collapse
You can flash the latest CWM through fastboot from your PC or Mac, you can grab the latest file from here. Name it whatever you like and put it in a known folder (preferrably current folder) and : fastboot flash recovery recovery.img
Dareoth said:
Ok, so fastboot is my solution. I've used that to unlock my bootloader, but little else (on a Mac, because terminal is super easy to use, but I've got PC access too). I've found the Google fastboot images, do you (or anyone reading this) know of a good fastboot image flashing guide?
Click to expand...
Click to collapse
Of course i do
Great, I'm all set now. Thanks so much.
(Also for linking to that ref guide again, I had read it three times, but I didn't get how to use it until I went in going, I just need the fastboot commands, which is all that guide gives.)
Your welcome mate. All you need for that is setting up the android SDK or essentially downloading platform-tools seperately. There are guides all over the place describing how to do this for Windows, Mac and Linux as it is no different from getting oem unlock to work, they're just mostly disguised as rooting guides.
Once you do it the first time it's quite simple, but it can definitely be confusing before that

Restoring to stock

Some months ago I followed guides here to SuperCID, s-off and install a custom ROM. The past few days my touch screen has become unresponsive, at first this was fixed by reflashing the ROM, but now, nothing will fix it, and the touch screen is completely unresponsive. So it seems I will have to return it to the shop to send off for repair. Of course I don't want them to have any reason to say it was the custom ROM that has caused it, warranty void blah blah so need to restore it to stock.
So far I have re-flashed with a stock ROM and changed the CID to what it was, and s-on. I can't remember whether I changed the MID, currently it is PG58*****, though I believe it should be PG5813001, and I'm not sure how to go about changing this (or if it needs changing, will they look into that?)
Another thing I'm unsure of, I downloaded the ROM from here: http://forum.xda-developers.com/showthread.php?t=1074559 I don't know if these ROMs are rooted or not? Is there any way to tell? Or is it a safe assumption they are not?
And finally, hboot, before flashing the stock ROM, this was 1.17, now it is 1.18. Is there anything in here that might suggest the phone has been tinkered with in ways they don't like? I just want to make sure I have covered everything so they don't immediately refuse to repair. If I have missed anything else please let me know.
Thanks.
Edit: I've also read about flashing stock recovery, though this may be included in the the stock ROM RUU I used, can someone confirm?
None of the 130 viewers have any advice on this one?
HB489 said:
Some months ago I followed guides here to SuperCID, s-off and install a custom ROM. The past few days my touch screen has become unresponsive, at first this was fixed by reflashing the ROM, but now, nothing will fix it, and the touch screen is completely unresponsive. So it seems I will have to return it to the shop to send off for repair. Of course I don't want them to have any reason to say it was the custom ROM that has caused it, warranty void blah blah so need to restore it to stock.
So far I have re-flashed with a stock ROM and changed the CID to what it was, and s-on. I can't remember whether I changed the MID, currently it is PG58*****, though I believe it should be PG5813001, and I'm not sure how to go about changing this (or if it needs changing, will they look into that?)
Another thing I'm unsure of, I downloaded the ROM from here: http://forum.xda-developers.com/showthread.php?t=1074559 I don't know if these ROMs are rooted or not? Is there any way to tell? Or is it a safe assumption they are not?
And finally, hboot, before flashing the stock ROM, this was 1.17, now it is 1.18. Is there anything in here that might suggest the phone has been tinkered with in ways they don't like? I just want to make sure I have covered everything so they don't immediately refuse to repair. If I have missed anything else please let me know.
Thanks.
Edit: I've also read about flashing stock recovery, though this may be included in the the stock ROM RUU I used, can someone confirm?
Click to expand...
Click to collapse
To Flash stock recovery read 2 in HERE I believe these ROMs are not rooted, to check just look for SuperSU or Superuser app, if it is not installed you are not rooted. Don't worry at all they'll never find out you rooted your phone, usually they never check. Read THIS guide it has the answer to all your questions regarding revert to stock
elvisypi said:
To Flash stock recovery read 2 in HERE I believe these ROMs are not rooted, to check just look for SuperSU or Superuser app, if it is not installed you are not rooted. Don't worry at all they'll never find out you rooted your phone, usually they never check. Read THIS guide it has the answer to all your questions regarding revert to stock
Click to expand...
Click to collapse
Thanks, though unfortunately I can't check what apps are installed due to the touch screen being unresponsive. But if that's not something they'll look into then fair enough.
The second thread doesn't quite answer everything (whether the ROMs are rooted for example), however, the first thread details extracting stock recovery from an RUU, so I guess that means I don't need to worry about that as it would have been flashed with the ROM.
One other thing - do they require the SD card to be sent also? Is there anything on there that should be removed? Any data relating to apps that use root privileges might raise an eyebrow; is it safe to do a reformat of the SD card? I'm not sure how much is on there that is vital the system.
Thanks for your answer.
HB489 said:
Thanks, though unfortunately I can't check what apps are installed due to the touch screen being unresponsive. But if that's not something they'll look into then fair enough.
The second thread doesn't quite answer everything (whether the ROMs are rooted for example), however, the first thread details extracting stock recovery from an RUU, so I guess that means I don't need to worry about that as it would have been flashed with the ROM.
One other thing - do they require the SD card to be sent also? Is there anything on there that should be removed? Any data relating to apps that use root privileges might raise an eyebrow; is it safe to do a reformat of the SD card? I'm not sure how much is on there that is vital the system.
Thanks for your answer.
Click to expand...
Click to collapse
No the ROMs in the second post are not rooted they are stock. The whole point of the post is to restore stock( read 3. RUU to restore stock). Stock recovery is smth else from stock ROM. You also need stock recovery to install OTA updates from google. Use Android Recovery Manager to download and install your stock recovery. Than in fastboot the stock recovery.img. I can't assure you that they won't notice you were rooted, but they usually don't. Keep in mind that when you unlocked your bootloader you accepted to void your warranty, and your serial number is in HTCs website. (theoretically) you can never be sure they won't discover you, but practically installing stock ROM, stock recovery, locking bootloader and getting back to s-on is enough to not get spotted
And you can format the SD Card if you want, you made a fresh install so there shouldn't be any files regarding it, just the files from the old system, but do a backup first just in case
elvisypi said:
No the ROMs in the second post are not rooted they are stock. The whole point of the post is to restore stock( read 3. RUU to restore stock). Stock recovery is smth else from stock ROM. You also need stock recovery to install OTA updates from google. Use Android Recovery Manager to download and install your stock recovery. Than in fastboot the stock recovery.img. I can't assure you that they won't notice you were rooted, but they usually don't. Keep in mind that when you unlocked your bootloader you accepted to void your warranty, and your serial number is in HTCs website. (theoretically) you can never be sure they won't discover you, but practically installing stock ROM, stock recovery, locking bootloader and getting back to s-on is enough to not get spotted
And you can format the SD Card if you want, you made a fresh install so there shouldn't be any files regarding it, just the files from the old system, but do a backup first just in case
Click to expand...
Click to collapse
Thanks again. If I recall correctly I used revolutionary, not HTC dev so I don't think they'll have my imei? Android recovery manager doesn't have the correct version for my phone, but further down the post it another method is extracting the recovery from the RUU, which is why I assumed stock recovery would have been installed when I flashed the RUU. I guess there is no harm in manually flashing the recovery to be sure though.
HB489 said:
Thanks again. If I recall correctly I used revolutionary, not HTC dev so I don't think they'll have my imei? Android recovery manager doesn't have the correct version for my phone, but further down the post it another method is extracting the recovery from the RUU, which is why I assumed stock recovery would have been installed when I flashed the RUU. I guess there is no harm in manually flashing the recovery to be sure though.
Click to expand...
Click to collapse
No HTCdev is not a recovery, it's the only way of unlocking your bootloader, which you have done for sure. But don't worry I assure you they don't go so deep. There's nothing wrong in flashing manually the recovery. Good luck

[Q] Can the bootloader be downgraded

Hi all,
After having successfully rooted my TF700 lately (while keeping the bootloader locked), I've been looking into unlocking the bootloader so I can flash a custom ROM (thinking about CROMI). Before flashing a custom ROM, people seem to recommend getting nvflash in order.
My problem is, however, I'm already on JB, and my understanding is that you need an ICS .26 bootloader (or earlier) in order to setup nvflash. I know that it's possible to downgrade the firmware from JB to ICS (in fact, this is what I did in order to be able to root my device - going from the latest JB to ICS .30); however, after searching around a fair bit, I'm still not clear on whether it's possible to revert the bootloader to an earlier version.
Can someone please clarify this for me. If I've already updated my device to JB, is there absolutely no way for me to set up nvflash?
Thanks!
joshnl said:
Hi all,
After having successfully rooted my TF700 lately (while keeping the bootloader locked), I've been looking into unlocking the bootloader so I can flash a custom ROM (thinking about CROMI). Before flashing a custom ROM, people seem to recommend getting nvflash in order.
My problem is, however, I'm already on JB, and my understanding is that you need an ICS .26 bootloader (or earlier) in order to setup nvflash. I know that it's possible to downgrade the firmware from JB to ICS (in fact, this is what I did in order to be able to root my device - going from the latest JB to ICS .30); however, after searching around a fair bit, I'm still not clear on whether it's possible to revert the bootloader to an earlier version.
Can someone please clarify this for me. If I've already updated my device to JB, is there absolutely no way for me to set up nvflash?
Thanks!
Click to expand...
Click to collapse
Once you're on JB, the lowest you can downgrade is ICS .30. You're too late for Nvflash. No way around it.
Okay... sucks, but thanks for the info. That's what I was afraid of.
Since that is the case, how critical is it to set up nvflash before getting into the whole custom ROM thing? Am I crazy to get into it without nvflash as a backup plan?
joshnl said:
Since that is the case, how critical is it to set up nvflash before getting into the whole custom ROM thing? Am I crazy to get into it without nvflash as a backup plan?
Click to expand...
Click to collapse
There is a bug in the bootloader that you should be aware of: If your recovery is broken because it is
* too old, designed for the ICS bootloader, or
* you erased it via fastboot
then you should NEVER EVER choose "wipe data" from the bootloader menu. Except you want an expensive paperweight. Because then you can't even enter fastboot to fix it. This is the only situation where nvflash would really help you out.
If you always test any newly flashed recovery first by using the power+volume buttons, you are safe.
Thanks, _that!
_that said:
There is a bug in the bootloader that you should be aware of: If your recovery is broken because it is
* too old, designed for the ICS bootloader, or
* you erased it via fastboot
then you should NEVER EVER choose "wipe data" from the bootloader menu. Except you want an expensive paperweight. Because then you can't even enter fastboot to fix it. This is the only situation where nvflash would really help you out.
If you always test any newly flashed recovery first by using the power+volume buttons, you are safe.
Click to expand...
Click to collapse
I know man who did wipe data from bootloader, it didn't brick him He has done this today on unlocked, TWRP and CROMI on TF300T. The newest bootloader fix it.
Hazard17 said:
I know man who did wipe data from bootloader, it didn't brick him He has done this today on unlocked, TWRP and CROMI on TF300T. The newest bootloader fix it.
Click to expand...
Click to collapse
It would not brick him if he installed the latest version the either recovery -- that's exactly what _that said.
Simply put, just keep your recovery up-to-date when major versions release and update the bootloader. When things such as this happen, they will be posted in the rom threat, just make sure you read thoroughly. Also, read the change log before upgrading the recovery, and if you use TWRP use GooManager and it will upgrade it for you at a tap of a button.

Stuck on ASUS screen while installing CM10

Hi, I unlocked my TF300T sotck ICS 4.0.3 with the Asus app, I flashed CWM and the root_signed thingy without a problem. I then did a data wipe, cache and dalvik wipe and flashed CM10 stable build for TF300T and the Gapps zip. I reboot and it's stuck on ASUS screen. I'm currently doing a restore of the "nandroid". Will this restore my tablet to ICS? What did I do wrong? How do I get either Cm10 to work or return to the ICS? Also, if I need to flash something else, how do I do it? Does the CWM recognize msd cards? Because all I have on the internal memory is the CM10 which currently did not work for me. I'm a little desperate right now. Thanks.
EDIT: DAMN IT, I just got an error restoring data. What the hell do I do? Please!
i tried restoring again and reflashing cm10 and the gapps and still nothing changes. I did wipe again the caches and still nothing. Also I can't download other roms to the tablet because my computer doesn't recognize the tablet because it hasn't booted and the cwm won't recognize micro sd cards. So I think flashing something else isn't an option. Did I break my tablet completely? I'm almost in tears
I tried several things due to some searches on different forums but nohitng works. I tried wiping caches and reflashing Cm10, didn't work. I tried pluggin my tablet to my computer and sending the asus stock rom via ADB and flashing that, but CWM gives me an "installacion aborted" error. I just don't know what to do nor I understand what went wrong. I did everything according to multiple tutorials. Unlocking, flashing CWM and rooting went just fine. But installing CM10 ended up pretty much destroying my tablet. I wanna kill myself.
I think you have a brick??!! :'( cm10 is jellybean and you where on ics and you probably didn't flash the jellybean bootloader did you?
Sent from my ASUS Transformer Pad TF300T
Not a single tutorial said that I had to do that. Every tutorial says "unlock bootloader, flash cwm, flash root_signed, flash cmrom". I did just that. Are you telling me that my tablet is lost forever?
in most cm threads (except cm9) their is stated that you atleast need android 4.1.1 with it's bootloader or 4.2 with it's bootloader, what i suggest you try is to flash a bootloader and upgrade staight to 4.1.1 you can download the firmware from asus the links are on this guide: http://forum.xda-developers.com/showthread.php?p=39272826 FOLLOW THIS GUIDE CORRECTLLY OR YOU MIGHT PERMANENTLY BRICK YOUR TABLET!!!!
EDIT: if you get an error during flash it's probably the drivers or a fastboot flash brick wich is only fixable by replacing the motherboard!!
Sent from my ASUS Transformer Pad TF300T
If what you say is true, then you can't flash CM10 on a stock ICS tablet, and that goes against every freaking tutorial I've read before messing with my tablet.
What exactly is your bootloader version?
Sent from my ASUS Transformer Pad TF300T
I'm not sure what my answer is. The "bootloader" was unlocked by the Asus app from their website. I did that by downloading (I believe it was V7) the apk from their website and installing that and unlocking the tablet. From there on, I just followed did fastboot flashing CWM and rooting. I never read a tutorial that said "you should flash JB bootloader before installing cm10". In fact I thought that just by unlocking the tablet, rooting and flashing the custom recovery one could just install a custom rom regardless of wether it's JB or not. It's funny because I didn't want to upgrade to stock JB because it seemed buggy from a lot of reviewers, and CM10 was the classic option to have JB and a lot of great features and speed. So I google time and time again how to flash CM10 on a ICS stock ASUS. I just followed the tutorials for that.
is my tablet unrecoverably bricked? I also tried fastbooting and "flash system blob" with the blob for the ICS 4.0.3 firmware, after a while of "sending" the file in the command prompt, I got a blue progress bar in the fastboot screen on the tablet and then "FAILED". So I guess that doesn't work either.
Nothing will work?
Try entering fastboot reboot: does your tablet reboot or does it hang?
cm10 is android 4.1 it seems logical that it only runs on a 4.1 bootloader and not on an ics one! most posts must have said that you atleast need jelllybean 4.1.1
I was confused in the beginning aswell because my phone accepts any rom no matter what bootloader version!
Sent from my ASUS Transformer Pad TF300T
If it makes so much sense that CM10 with JB 4.1 only boots with the JB bootloader, then how the hell one can go from ICS to CM10?! Google tutorial flash cm10 on asus tf300t stock ics and you'll find a thousand tutorials not one of which says you need JB bootloader. I mean, I assume one could upgrade to the official JB rom and then unlock bootloader, etc, but I'm telling you, every tutorial that said "stock ics to cm10" did no mention the bootloader version issue. I'm not trying toblame anyone other than myself for "bricking" my tablet, but I read so many tutorials to ensure I wouldn't mess it up that I'm very upset about this.
I can use fastboot and adb commands. But I haven't been able to flash the ICS stock rom so far. First of all, it's not on the Asus website anymore, and the one I got from the web gave me this error on CWM "instaling update.. installation aborted". I also tried flashing the .blob via fastboot and it also failed. It seems nothing works. Any thoughts, anyone?
philos64 posted links to some old ICS ASUS firmwares in this post:
http://forum.xda-developers.com/showpost.php?p=33883254&postcount=3
Maybe worth a try ? Never been on ICS myself - just thought I'd mention this source...sorry for wasting your time if this is what you already tried.
Yeah, I tried flashing the ICS 9.4.3.30 (my stock rom) and it didn't fly (said installation aborted) and also tried to flash it as a blob and it failed. I guess I deserve this, but I just can't bellieve this isn't fixable.
samus88 said:
Yeah, I tried flashing the ICS 9.4.3.30 (my stock rom) and it didn't fly (said installation aborted) and also tried to flash it as a blob and it failed. I guess I deserve this, but I just can't bellieve this isn't fixable.
Click to expand...
Click to collapse
We would like to know what bootloader you now have. You use the bootloader menu to get to cwm. Tell us how many ICONS you have and what they are. This way we will have more info to consider options if any.
It's ICS. I have the Wipe Data and the Coldboot option. If I'm connecte with the usb cable, there's also the usb icon.
Currently I don't have the tablet, because I send it to a tech support place and they should give me a repair budget (if they deem it repairable, I guess) by tomorrow, but I'm not confident that they'll be able to fix it. So I'm still open to suggestions. Thanks!
samus88 said:
It's ICS. I have the Wipe Data and the Coldboot option. If I'm connecte with the usb cable, there's also the usb icon.
Currently I don't have the tablet, because I send it to a tech support place and they should give me a repair budget (if they deem it repairable, I guess) by tomorrow, but I'm not confident that they'll be able to fix it. So I'm still open to suggestions. Thanks!
Click to expand...
Click to collapse
I reread the thread and I believe I would make a blob with just stock recovery (4.03) to match your bootloader. I know fastboot is failing on a complete blob but may process something as small as recovery. The blob could also be pushed to your tablet with adb and flash with that.
I made these choices as a place to begin since we need to match your bootloader.
Once stock recovery was in place we could use adb to push a once unzipped stock firmware (4.03) and get stock recovery to install it for us.
Thanks a lot man. When I get the tablet back and you make me that blob I'll definitely give it a try. Although I have a question, I already have the once unzipped stock ICS on my tablet (pushed it with ADB), how do I install it with stock recovery should flashing that blob work?
samus88 said:
Thanks a lot man. When I get the tablet back and you make me that blob I'll definitely give it a try. Although I have a question, I already have the once unzipped stock ICS on my tablet (pushed it with ADB), how do I install it with stock recovery should flashing that blob work?
Click to expand...
Click to collapse
With stock recovery in place go into bootloader and pretend you are going into cwm that activates stock recovery now. If android lays down we'll rename the zip to EP201_768_SDUPDATE.zip and try again.
I'll download 4.03 and make the recovery blob tomorrow so we'll be ready.
Sorry about that. I read "I would make" as "I will make", lol. Is there a stock recovery 4.0.3 blob on the internet for download? I'll get some sleep now, but I'll try to prepare everythng for when I get the tablet back, assuming I don't have fixed for me by tech support (although I'd love not to have to pay forit, right)
samus88 said:
Sorry about that. I read "I would make" as "I will make", lol. Is there a stock recovery 4.0.3 blob on the internet for download? I'll get some sleep now, but I'll try to prepare everythng for when I get the tablet back, assuming I don't have fixed for me by tech support (although I'd love not to have to pay forit, right)
Click to expand...
Click to collapse
No, there is the full blob in the factory firmware and that is what I'll use. It only takes a couple of minutes to extract the recovery image file which might flash and then re-blob just the recovery partition.
Downloading takes longer than everything else.
Update:
This zip contains stock 4.03 recovery as a blob and as an image file.
Unzip and try flashing the blob - if it fails try flashing twice more or until success. If it still fails try flashing the image file - three times if it fails.
Note:
These are to be flashed with fastboot or adb, not cwm.
Great, thanks man. Unfortunately, I won't have my tablet until at least wednesday because of the holiday on my country (independence day and such). But I'll give it a try and get back to you.

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