so i have OTAed to jelly bean, but i do wana do NVFlash, is there a way to roll back my bootloader or will a downgrade to .26 allow me to NVFlash?
--Jezzirolk
jezzirolk said:
so i have OTAed to jelly bean, but i do wana do NVFlash, is there a way to roll back my bootloader or will a downgrade to .26 allow me to NVFlash?
--Jezzirolk
Click to expand...
Click to collapse
Once you upgrade from .26 to .30 or JB, there is NO WAY to roll back to do NVflash.
buhohitr said:
Once you upgrade from .26 to .30 or JB, there is NO WAY to roll back to do NVflash.
Click to expand...
Click to collapse
if you unlock you cant flash a new bootloader? i find this kind of annoying well ok i may not be unlocking anytime soon then.
jezzirolk said:
if you unlock you cant flash a new bootloader? i find this kind of annoying well ok i may not be unlocking anytime soon then.
Click to expand...
Click to collapse
I don't understand what you are trying to do? Do you want NFflash so you could backup your bootloader? or you want to flash a custom rom? Since you already upgrade, NVflash is out of the question. If you unlocked, you could flash anything thing you want. Just to be clear, NVflash will help you if you brick you device and this is the main purpose of NVflash.
buhohitr said:
I don't understand what you are trying to do? Do you want NFflash so you could backup your bootloader? or you want to flash a custom rom? Since you already upgrade, NVflash is out of the question. If you unlocked, you could flash anything thing you want. Just to be clear, NVflash will help you if you brick you device and this is the main purpose of NVflash.
Click to expand...
Click to collapse
but cant things like flashing roms and such cause a brick. i guess then more of my question becomes how likely is it to brick or anything like that?
jezzirolk said:
but cant things like flashing roms and such cause a brick. i guess then more of my question becomes how likely is it to brick or anything like that?
Click to expand...
Click to collapse
I flash rom since android started and I never brick any device. I believe if you flash rom and kernel correctly, the chance to brick is very small. Usually bricking caused by operator mistakes like flash a rom on a wrong kernel version, flash a rom on a wrong bootloader, install incorrect version of custom recovery for the correct rom etc... I feel pretty safe flashing rom, but can't say the same for you. You need to ask yourself, do you feel OK with your device? is it bother you a lot? if it is then you should take a chance and flash to Cleanrom. The brick percentage is minimum.
Related
Guys,
a post with a flashable bootloader for both ICS and JB would be useful.
I've borked a JB rom and my CWM backups were not working because of the bootloader.
I had to flash ASUS stock back to get the bootloader.
Some zip files would be useful in case someone wants to go back to ICS
Much appreciated.
Abe
what if the JB bootloader sets some e-fuses and reverting to the ICS bootloader bricks the tablet?
without NVFLASH I wouldn't even attempt such a thing.
abe_cedar said:
Guys,
a post with a flashable bootloader for both ICS and JB would be useful.
I've borked a JB rom and my CWM backups were not working because of the bootloader.
I had to flash ASUS stock back to get the bootloader.
Some zip files would be useful in case someone wants to go back to ICS
Much appreciated.
Abe
Click to expand...
Click to collapse
untermensch said:
what if the JB bootloader sets some e-fuses and reverting to the ICS bootloader bricks the tablet?
without NVFLASH I wouldn't even attempt such a thing.
Click to expand...
Click to collapse
Asus wouldn't b that nice would they?
On Galaxy Nexus I do that all the time. They have an ICS bootloader and a JB one. I can check the version in Fastboot mode.
I am trying to flash some JB ROMS and if I fail all my CWM backups are useless since the bootloader is the incorrect one..
The tab gets stuck after restoring I assume because of the incorrect bootloader.
Thanks
Abe
I attached the ICS bootloader, I would strongly suggest you wait until NVFLASH
for the tf300t is released to mess with the bootloader because you have no way
back if it does not work (no fastboot).
I Will
untermensch said:
I attached the ICS bootloader, I would strongly suggest you wait until NVFLASH
for the tf300t is released to mess with the bootloader because you have no way
back if it does not work (no fastboot).
Click to expand...
Click to collapse
Yea,
any news on NV flash?
I saw a tweet from Asus in some thread saying that they are not going to support it at ALL.
I hope is not true
Thanks for the zip.
Always good to have files just in case.
abe_cedar said:
Yea,
any news on NV flash?
I saw a tweet from Asus in some thread saying that they are not going to support it at ALL.
I hope is not true
Thanks for the zip.
Always good to have files just in case.
Click to expand...
Click to collapse
In the official cm10 thread it states that nvflash is not going to work with the jellybean bootloader. I think they where close to a release before jellybean dropped.
here is the post.
http://forum.xda-developers.com/showpost.php?p=31244180&postcount=164
Move to dev if better suited there.
Thanks goes to saltxyz for this find.
For those of us on the TF300 JB bootloader you can revert back to ICS using my instructions in my other post here only be sure to grab the new .30 firmware: http://forum.xda-developers.com/showthread.php?t=1873635
Not only is ICS running smoothly again thanks to the bootloader but THE .30 BOOTLOADER ALLOWED THE JB KERNEL TO RUN!!
That's right I was able to flash my own TF300 ROM which has everything but the kernel removed from the blob and it ran JB while leaving the bootloader intact.
nice! good to hear asus has things figured out.
I'm guessing this is part of the prep for JB with the bootloader supporting both.
Mike02z said:
I'm guessing this is part of the prep for JB with the bootloader supporting both.
Click to expand...
Click to collapse
I can only assume so.
Can we just flash the .30 zip file in TWRP?
rooted/unlocked
amaury48 said:
Can we just flash the .30 zip file in TWRP?
rooted/unlocked
Click to expand...
Click to collapse
Yes, but you have to extract US_epad_user_9_4_5_30_20120907_UpdateLauncher.zip to US_epad-user-9.4.5.30.zip and flash it.
amaury48 said:
Can we just flash the .30 zip file in TWRP?
rooted/unlocked
Click to expand...
Click to collapse
I've flashed it several times today. You will have to re-install TWRP via fastboot, and then flash SuperUser, if you care about root.
LMMT said:
I've flashed it several times today. You will have to re-install TWRP via fastboot, and then flash SuperUser, if you care about root.
Click to expand...
Click to collapse
I know it's stated that you have already done this, but I really don't want to screw something up and I don't have NVFlash to recover from a hard brick.Can you, or others, confirm that you can indeed move from the .13 JB bootloader to the .30 ICS bootloader successfully and then be able to use the NVFlash?
Edit: Oops, I guess this is for the TF700 only, or will this work on the actual TF300 as well? Anyone know?
-Nate
herschwolf said:
I know it's stated that you have already done this, but I really don't want to screw something up and I don't have NVFlash to recover from a hard brick.Can you, or others, confirm that you can indeed move from the .13 JB bootloader to the .30 ICS bootloader successfully and then be able to use the NVFlash?
Edit: Oops, I guess this is for the TF700 only, or will this work on the actual TF300 as well? Anyone know?
-Nate
Click to expand...
Click to collapse
Actually a user in the nvflash thread said he tried it for the TF300 and it worked.
Sent from my EVO using xda premium
As the title says. I uploaded the tf300 firmware while rooted and an unlocked bootloader. I had twrp
I've heard that flashing the 'update' removes root and relocks the bootloader.
I really have no idea how to go back to ICS but i've read that theres a way. I just can't find any clear directions.
just download the new rom from asus and flash it in recovery.
when it reboots you will be back to stock with new bootloader.
I thought the bootloader went untouched by reflashing the stock ROM? (I might be mistaken here, but isn't that the entire issue with not being able to get back to the ICS bootloader after flashing the JB bootloader?)
New ROM has a new boot loader which will flash over jb.
lafester said:
New ROM has a new boot loader which will flash over jb.
Click to expand...
Click to collapse
However. there's no way to relock the bootloader as the OP had heard, correct?
okantomi said:
However. there's no way to relock the bootloader as the OP had heard, correct?
Click to expand...
Click to collapse
No you can't relock. Not sure where the op may have heard that as I have not seen it posted anywhere.
Might be confused with losing root?
lafester said:
just download the new rom from asus and flash it in recovery.
when it reboots you will be back to stock with new bootloader.
Click to expand...
Click to collapse
It was removed from the asus site, could you provide a link?
Also....do I need to rename it to anything and place it anywhere specific? Because I have already tried and it doesnt work for me. When i go into recovery i get the android with the exclamation point in red. So....idk....
its there i just looked.
you do need to unzip it since it is double zipped for some reason.
then flash as usual.
Hello, i had a Transformer Infinity Pad with unlocked Bootloader and Custom Recovery... Is there a way to root the new Version, because i am so stupid and forget to backup the root..
i am a little noob
manson28031991 said:
Hello, i had a Transformer Infinity Pad with unlocked Bootloader and Custom Recovery... Is there a way to root the new Version, because i am so stupid and forget to backup the root..
i am a little noob
Click to expand...
Click to collapse
No, not yet. For now, you have to flash back to .30, root it then use OTA keeper to save a backup, then upgrade to JB, then restore root.
manson28031991 said:
Hello, i had a Transformer Infinity Pad with unlocked Bootloader and Custom Recovery... Is there a way to root the new Version, because i am so stupid and forget to backup the root..
i am a little noob
Click to expand...
Click to collapse
You could try to flash Superuser with this recovery and maybe it will work.If after you flashed the Superuser zip you still don't have root,downoad the SuperSU app from market.
buhohitr said:
No, not yet. For now, you have to flash back to .30, root it then use OTA keeper to save a backup, then upgrade to JB, then restore root.
Click to expand...
Click to collapse
Is it possible to flash back to .30 without an unlocked bootloader ?
slainer68 said:
Is it possible to flash back to .30 without an unlocked bootloader ?
Click to expand...
Click to collapse
No, you have to have an unlocked bootloader.
buhohitr said:
No, not yet. For now, you have to flash back to .30, root it then use OTA keeper to save a backup, then upgrade to JB, then restore root.
Click to expand...
Click to collapse
How would one flash back to .30 if they're already on JB? I did the same thing...updated to JB without saving root. I do have an unlocked bootloader.
Grady said:
How would one flash back to .30 if they're already on JB? I did the same thing...updated to JB without saving root. I do have an unlocked bootloader.
Click to expand...
Click to collapse
If you are unlocked just follow the method i've posted in my previous post,it should work without going back to 30.
Pretoriano80 said:
If you are unlocked just follow the method i've posted in my previous post,it should work without going back to 30.
Click to expand...
Click to collapse
Yes this method does work if you are unlocked, thanks for the idea......
Yes, I can also confirm this method works.
Woohoo! I have root again!
I was gettin worried, downgrading seems like such a hassle
OFFICIAL JB, TF700, WW SKU, C70 serial 64gb
I just wanted that 3.1.x kernel SO bad.
Now to finally start tweaking/debloating it. I can't believe this BLOATED STOCK firmware runs as "smoothly" as it does, compared to stock .22, stock .26 and stock .30 it is hands down worth the hassle.
I have JB that has portrait mode, IPS+ and I can still plug my NTFS formatted portable hard drive into it, that NEVER worked on any of the custom JB roms working around the 2.6.x kernel.
now to see how vnc-loopback-linux-over-android works!
all the excitement, all over again. I've only had this thing for a little over two weeks, but it's so much fun. I love being on the ground floor with new devices, so many risky experimental things to try.
I'm f'n stoked! Haven't gotten bored with it yet!
Keep up the good work everyone!
slainer68 said:
Is it possible to flash back to .30 without an unlocked bootloader ?
Click to expand...
Click to collapse
Yes, you can follow the soft brick recovery in the "All-In-One" thread to downgrade from JB to ICS .30 without unlocking your boot loader.
So, let me get this straight.
Revert to .30, then root, then use Superuser (I have Elite) to OTA save, then apply the JB update, then use Superuser to un OTA save?
i was thinking of unlocking my device and changing the rom.. however, ive permanently bricked this tablet for and had to have it repaired at a high cost, so im cautious.. i believe i fell victim to the having the twrp and resetting via the bootloader problem... how do i avoid this, how do i prevent this from happening again? i cant use nvflash, and is there any way of changing this annoying bootloader?
jason41987 said:
i was thinking of unlocking my device and changing the rom.. however, ive permanently bricked this tablet for and had to have it repaired at a high cost, so im cautious.. i believe i fell victim to the having the twrp and resetting via the bootloader problem... how do i avoid this, how do i prevent this from happening again? i cant use nvflash, and is there any way of changing this annoying bootloader?
Click to expand...
Click to collapse
If using the wrong version of custom recovery vs bootloader can brick your device. The best way to approache this is, first upgrade your device to the latest JB .25, then unlock your device, then use fastboot to push your latest twrp recovery (2.3.3.0), then flash custom rom. Pretty much straiht forward without risk.
buhohitr said:
If using the wrong version of custom recovery vs bootloader can brick your device. The best way to approache this is, first upgrade your device to the latest JB .25, then unlock your device, then use fastboot to push your latest twrp recovery (2.3.3.0), then flash custom rom. Pretty much straiht forward without risk.
Click to expand...
Click to collapse
do i still need twrp installed or do i use fastboot for that?.. also i had to downgrade to 9.4.5.30 to root it first, should i need some kind of root protection before upgrading back to JB?
jason41987 said:
do i still need twrp installed or do i use fastboot for that?.. also i had to downgrade to 9.4.5.30 to root it first, should i need some kind of root protection before upgrading back to JB?
Click to expand...
Click to collapse
You don't need to root if you're unlocked because all custom roms are pre-rooted. Maybe this will be clearer;
Let pretend you're on JB, if you are on ICS, just use OTA upgrade to JB.
1. use Asus unlock tool to unlock (the tool will work with ICS or JB and very safe to use)
2. Use fastboot to push TWRPcustom recovery to your device
3. Boot into TWRP to flash custom rom (now have custom rom and rooted).
Done.
buhohitr said:
You don't need to root if you're unlocked because all custom roms are pre-rooted. Maybe this will be clearer;
Let pretend you're on JB, if you are on ICS, just use OTA upgrade to JB.
1. use Asus unlock tool to unlock (the tool will work with ICS or JB and very safe to use)
2. Use fastboot to push TWRPcustom recovery to your device
3. Boot into TWRP to flash custom rom (now have custom rom and rooted).
Done.
Click to expand...
Click to collapse
what im confused about is using fastboot to push twrpcustom recovery, am i installing twrp in this step using fastboot?
jason41987 said:
what im confused about is using fastboot to push twrpcustom recovery, am i installing twrp in this step using fastboot?
Click to expand...
Click to collapse
Yes, "fastboot flash recovery ... " installs a recovery.
I rooted mine when I had ICS and used OTA rootkeeper to OTA to JB to keep root. Unlocked it then used Goomananger (required root) app from the market to install TWRP. I like goomanager as you dont need to hook it up to your pc and was pretty easy. If you're already rooted I would go this route to install custom recovery.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
jason41987 said:
i was thinking of unlocking my device and changing the rom.. however, ive permanently bricked this tablet for and had to have it repaired at a high cost, so im cautious.. i believe i fell victim to the having the twrp and resetting via the bootloader problem... how do i avoid this, how do i prevent this from happening again? i cant use nvflash, and is there any way of changing this annoying bootloader?
Click to expand...
Click to collapse
I was just as hesitant as you are. Took the leap yesterday and I am VERY happy I did. CROMI turns this baby into a whole new experience!
Just follow the instructions in this thread:
http://forum.xda-developers.com/showthread.php?t=1833212
Read it, follow all the links, read it again and when you feel you really understand the process, follow it step by step.
The whole process turned out to be a breeze - especially compared to the trepidation I had about this
Sent from my ASUS Transformer Pad TF700T using Tapatalk HD
any recommendations for some good ROMs?
jason41987 said:
any recommendations for some good ROMs?
Click to expand...
Click to collapse
Best rom is CleanRom version 3.2.1.
ok.. well it seems i have twrp installed just fine now, used the fastboot method... im going to try cleanrom a bit, and try out the ubuntu LXDE rom as well, ill try cleanrom first
it looks as if everything was successful, and i made it past the stage that caused a brick before, so i would say im in the clear now, tried clean rom, pretty cool you can choose your stock launcher but i really want to experiment with ubuntu on it as well with a mouse and keyboard, see if i can replace my netbook with this