Downgrade from .21 : Possible ??? - Asus Eee Pad Transformer Prime

Hello,
I've just got my Prime, and I've upgraded to .21 straight away, only afterwards that I've looked that it is impossible to root, and I really need to root, as I'm uing it for work, and I need to get Ubuntu going on it.
Anyway to downgrade from .21 ?
Thanks for your help,
Keven

I swore i saw this question answered in the forum, hmmm maybe do a search?????
Sent from my Transformer Prime TF201 using Tapatalk 2

Same thing happened to me unlock the bootloader and then flash clockwork recovery then install a rom that is rooted. Its the only work around that i know.

It is here!!
http://forum.xda-developers.com/showthread.php?t=1622628

And there are a lot of positive responses here http://forum.xda-developers.com/showthread.php?t=1626190

Related

[Q] 9.4.2.21 update???

I am new to the Prime forum, however, I am not new to Android Devices or XDA. I currently have an EVO 4G and an EVO 3D on Sprint and I know it is a big no, no to take an OTA with phones.
However, after doing a bit of reading on this forum, I discovered that is actually WORSE to accept the OTA on this tablet (results in hard-brick).
Now, my question is will someone be releasing a fully STOCK ROM based on the 9.4.2.21 update with nothing removed or added (except possibly SU and Busybox). I haven't seen any mention of this on the forums which is why I am asking. Excited to get the update but don't want to brick it.
Will donate big to the first person who makes a fully stock ROM with this update.....
OTA will not brick your tablet. OTA updates are fine. Unless you have unlocked the boot loader. If you are rooted still not a problem, just backup root first. And if it does hard brick and you didn't screw it up, RMA.
Apparently this forum is full of people with a little bit of knowledge and a lot of squeaky wheels.
BTW thanks for the cash incentive for a stock rom, big spender.
^What he said.
OTA updates are perfectly safe, I've done 3 already!
Just be sure to root before you update to .21 and use OTA Rootkeeper to keep root after you update
Goodluck!
flyrocket said:
^What he said.
OTA updates are perfectly safe, I've done 3 already!
Just be sure to root before you update to .21 and use OTA Rootkeeper to keep root after you update
Goodluck!
Click to expand...
Click to collapse
Thanks guys. I have an unlocked bootloader, so I guess I will be waiting...
9.4.2.21 root
Has anyone been able to root the latest firmware, 9.4.2.21 for the TF201?
nilesf said:
Has anyone been able to root the latest firmware, 9.4.2.21 for the TF201?
Click to expand...
Click to collapse
I don't think so. I'm running .21, and I'm in need of root.
overhauling said:
I don't think so. I'm running .21, and I'm in need of root.
Click to expand...
Click to collapse
Me too waiting for root .21
nilesf said:
Has anyone been able to root the latest firmware, 9.4.2.21 for the TF201?
Click to expand...
Click to collapse
joining to you)
did some one root the 9.4.2.21???
thanks.
the update is ok (i dl on vip.asus.com)
but for the wifi
it is the same problem
I sub to this,
As i also need to root 9.4.2.21
Also, are there any ETA's on when there will be one ?
pinky059 said:
Thanks guys. I have an unlocked bootloader, so I guess I will be waiting...
Click to expand...
Click to collapse
Virtuous ROM is pretty much totally stock with a few tweaks here and there. Nothing major though. Also the installer that Virtuous team are using allows you to have 3 different installation experiences.
FULL: Which removes nothing whatsoever from the stock ROM
TYPICAL: Which removes a few ASUS apps that most people probably do not use or miss.
MINIMAL (I think that it what is't called): Which removes almost all ASUS apps.
You should give it a try.
So I have a transformer prime with the root can do the updating ota without any danger?
spygia said:
So I have a transformer prime with the root can do the updating ota without any danger?
Click to expand...
Click to collapse
As long as your bootloader isn't unlocked and you haven't tampered with any system apps, you should be fine.
Sent from my ADR6425LVW using XDA Premium.
once rooted
I'm new to the forum and to the transformer prime, i had it rooted but updated the firmware to 9.4.2.21 before finding out about rootkeeper, i know big mistake, now im no longer rooted. Is there or will there be a way for me to root my tablet again?
Thanks in advance
"Add space" feature missing from Android keyboard
The "add space" feature is missing from the Android keyboard. As anyone else noticed this. I actually liked the feature as it made typing faster.
Thanks,
Niles
hogges said:
I'm new to the forum and to the transformer prime, i had it rooted but updated the firmware to 9.4.2.21 before finding out about rootkeeper, i know big mistake, now im no longer rooted. Is there or will there be a way for me to root my tablet again?
Thanks in advance
Click to expand...
Click to collapse
Yes, you may root.
Follow the steps posted here: http://forum.xda-developers.com/showthread.php?t=1574870
9.4.2.21 update
HELLO need help i cant seem to get FOTA update and i tried the manual why and cant get it to work can some one please help
Updating to 9.4.2.21
I have a rooted Transformer Prime with bootloader unlocked running on 9.4.2.15 firmware.i also have rootkeeper installed . can any one guide me how i can update its firmware to 9.4.2.21 without damaging my tablet and still have the root.
Thanx
rajasays said:
I have a rooted Transformer Prime with bootloader unlocked running on 9.4.2.15 firmware.i also have rootkeeper installed . can any one guide me how i can update its firmware to 9.4.2.21 without damaging my tablet and still have the root.
Thanx
Click to expand...
Click to collapse
Correct me if I'm wrong, but I do believe the easiest way is to flash a new ROM.
As Doktaphex has said you can use the Virtuous ROM.
http://forum.xda-developers.com/showthread.php?t=1511839
Also I'm waiting for an exploit to root my TFP. I'm just not willing to bork my warranty by unlocking the bootloader yet.

TF201, upgrade to .21 after rooting by downgrade: no update by OTA?

Hi,
I've finally been able to root my TF201 (unlocked) by the downgrading method but now I'm stuck on build v.15 and OTA says there is no update for me?
I tried to stop/clear CMclient and DM client, cold reboot..; but no way. I know that upgrading by adb will kill the rootkeeper.
Did I miss something? no OTA update for the last 24 hrs. On ASUS device tracker, my device is upgraded to .21 maybe the problem come from here.
Sent from my Transformer Prime TF201 using xda premium
phigafr said:
Hi,
I've finally been able to root my TF201 (unlocked) by the downgrading method but now I'm stuck on build v.15 and OTA says there is no update for me?
I tried to stop/clear CMclient and DM client, cold reboot..; but no way. I know that upgrading by adb will kill the rootkeeper.
Did I miss something? no OTA update for the last 24 hrs. On ASUS device tracker, my device is upgraded to .21 maybe the problem come from here.
Sent from my Transformer Prime TF201 using xda premium
Click to expand...
Click to collapse
If you unlocked your tablet, you wont get any OTA updates.
this is what I found out. Not an issue, it's still possible to upgrade by adb but then root is lost . I need root... so...
Sent from my Transformer Prime TF201 using xda premium
You've obviously researched the subject. Is there some reason why downloading the .21 update from Asus support pages and unzipping it 1 level to place the extracted zip file in the root of a micro SD card and rebooting won't update?
Hi,
It will update but the rooting will be lost. Even with Root keeper. (well, I did not try the SD card way)
If your unlocked you should not get official ota updates.
Sent from my PC36100 using Tapatalk 2
This is what I understand. Will root be lost even if I update by the zip on /sdcard?
I may give a try to CM9...
If you are unlocked you will not loose root when you flash a zip (CM9) through recovery to a new ROM.
stock at 9.2.1.15
hi everyone, just wanna share this and ask something too...
so i thought that i could upgrade from .15 to .21 after unlocking my device, but found out that it was impossible. correct me please if i'm wrong...
i had no choice but to just leave it like that (.15) then install AOKP..
Are there any downside of being stock in .15? or is it still possible to do OTA update in a very safe possible way in the future?
Thanks....
If you downgraded to .15 make sure that you put the right blob on your prime so that you will be able to get the ota back to .21. If you use the wrong blob file than you will not get the ota.
Sent from my ASUS Transformer Pad TF300T using Tapatalk 2
skarfreak said:
hi everyone, just wanna share this and ask something too...
so i thought that i could upgrade from .15 to .21 after unlocking my device, but found out that it was impossible. correct me please if i'm wrong...
i had no choice but to just leave it like that (.15) then install AOKP..
Are there any downside of being stock in .15? or is it still possible to do OTA update in a very safe possible way in the future?
Thanks....
Click to expand...
Click to collapse
skarfreak: you can upgrade manually to .21 but root will be lost.
I'm back to stock .15 rooted. I tried CM9 but so far not totally stable (crash of desktop?, drop wifi in standby...., no isp mode, not mouting sd card or usb stick etc..) . Hoping some progress both from CM9 and root for stock.
Sent from my Transformer Prime TF201 using xda premium
Or you could use AndroWook's stock rooted ROM to upgrade... http://forum.xda-developers.com/showthread.php?t=1674827 (post 2)
Thank you very much for your link! Looks awesome.
Can you please confirm the ASUS application are included such as quick-settings menu, app locker, IPS+ mode etc?
I'll have a look to it.
Meanwhile I've been able to root my stock .21 by this method for TF300:
http://forum.xda-developers.com/showthread.php?t=1704209
phigafr said:
skarfreak: you can upgrade manually to .21 but root will be lost.
I'm back to stock .15 rooted. I tried CM9 but so far not totally stable (crash of desktop?, drop wifi in standby...., no isp mode, not mouting sd card or usb stick etc..) . Hoping some progress both from CM9 and root for stock.
Sent from my Transformer Prime TF201 using xda premium
Click to expand...
Click to collapse
havent you tried AOKP? i think i'll stick to AOKP atm, improves my tab a lot, can play GAMELOT games now.. quick boot.., but i think theres a little wifi issue.. anyway, there will be greater tweaks in the near future..
To emphasise - if you unlocked (as in bootloader unlocked) then you must never attempt to install the official ASUS firmware (either by OTA or other means). If you try, you will brick your prime.
Once unlocked, updates need to be by community ROMs only.
Please be specific about the distinction between rooted and unlocked, and be careful when giving advice that might brick someone's device unless you are sure you understand the advice you are giving.
craigacgomez said:
Or you could use AndroWook's stock rooted ROM to upgrade... http://forum.xda-developers.com/showthread.php?t=1674827 (post 2)
Click to expand...
Click to collapse
thanks so much, because of you, i found this. one of the most flawless rom i could say.. i just flash the 2nd to the latest version, coz the latest version just pop up after like 24 hours.. hehehe... so i guess i'll update again next week. not able to sleep well last night coz of this. hehe....i enjoyed the fluidity... i see a very bright and promising tweaks on this ROM... kudos...

best way to root on 4.1.1??

hey guys, I flashed JB JRO03C 10.4.2.15 (US) Stock Deodexed + Mods [Unlocked BL], and like an idiot i rushed through it and never even read the part about having to separately flash superuser....i know, I'm an idiot. Thank you. well anyways, I'm thinking i need to just re-root all over again? Unless there is a better way to get superuser back? anyone can help I would greatly appreciate it. My question is, is if i have to re root, then what is the easiest way to root with 4.1.1? thanks in advance
anyone?
Me too. I was rooted and had Voodoo installed but after 4.1 I lost it all. Not even partial.
Currently no way to root once on JB, not without unlocking; which voids your warrantee. Can't downgrade back to ICS either to root.
Sent from my GT-N8000 using XDA Premium HD app
Unfortunately there is no way so far to root JB. (I know. Is this the future of Android? No root? No unlocked bootloaders? That is a discussion for another day.)
But... If you were rooted before and used Voodoo Root Keeper, there may still be hope. Check out this thread. As I have posted before, try and follow the conversation between thenrz and myself starting here and see if this helps.
Hopefully you have a copy of the su binary lurking on your Prime. With that you can, with luck, restore root. Read the conversation a few times to get the jest. I'm sure most of you are smart enough to read between the lines to get it figured out.

Asus Update

Hi guys,
im gonna cut to the chase. some time ago my tf201 was having problems and i went to asus site n downloaded and installed everything that had to do with the tf201. turns out that included the unlocker tool which as i understand voids warranty and prevents update? is there some way to remove this? and if not, is there anyway to install jellybean into my tf201 (currently ICS) i really want to install jellybean so any help is much much appreciated.
on another thread i posted someone mentioned something about downloading a rom from the dev forum? kinda have no idea what to do. hope someone can shed some light on this
Unintentionally unlocked? I would say it is blessing in disguised
Try custom ROMs like Androwook and Energy.
I am using Androwook. I am very very happy with the performance. The tablet feels definitely faster and smoother than stock. Heard that Energy is good tho I have not tried it yet.
Thumbs up for Androwook Hairy Bean!
Everything you need on the page to update to jb bootloader and rom. And a very helpful community.
Sent from my Transformer Prime TF201 using XDA Premium HD app
where to i get that? how do i install it?? is tthere a STEP BY STEP guide? im afraid of messing up further. and isit jelly bean?? theres an app i wanna install but its onnly for jellybean
To: tuckermission. thanks for the reply on my other thread. thanks for the link but how do u get stuff like custom recovery??? im a complete noob. would appreciate any help
i see stuff like nvflash, custom recovery, unlocked bootloaded, jb bootloader. and its making me woozy
am i supposed to root first?
FYI:
Android version --> 4.0.4
Kernel Version --> 2.6.39.4-00003-g12de84f
[email protected] #1
Build Number--> IML74K.TW_epad-9.4.2.21-20120323
Pad EC version--> TF201-PAD-0215
So when have you unlocked your tablet or not? I'll help guide you through this process.
its been unlocked for quite some time now... sorry but i cant rmb the exact date
Alright so if you want Jelly Bean all you need to do is get the Jelly Bean boot loader. The easiest way to do this is to flash a rom that has this included in it. Do you have TWRP installed?
sorry was refreshing like an idiot n didnt realise it went on to 2nd page...
put it this way. i havent done anything other then unlock it
some people have been asking me to get hairybean from andro wook? isit the same?
I followed McJesus15's writeup (thanks btw) to install the twrp recovery. I used the Option 2 (Easy Option) to install the recovery and it was VERY easy and I had no problems.
http://forum.xda-developers.com/showthread.php?t=1998359
I then went to the below page, read through it and flashed Androwook 1.51 to my Prime. It's never run so good.
http://forum.xda-developers.com/showthread.php?t=1674827
I was always on the fence about doing this because I didn't want to screw anything up, nor void my warranty. I am glad I waited because I recently had an issue with my rear camera and had my Prime replaced under warranty. Now that I have a good working Prime and it's almost out of warranty, I said what the heck and upgraded. I also bought a dock and have finally put the 'Transformer' part of Prime to some good use. I LOVE this thing now.
turbodroid said:
I followed McJesus15's writeup (thanks btw) to install the twrp recovery. I used the Option 2 (Easy Option) to install the recovery and it was VERY easy and I had no problems.
http://forum.xda-developers.com/showthread.php?t=1998359
I then went to the below page, read through it and flashed Androwook 1.51 to my Prime. It's never run so good.
http://forum.xda-developers.com/showthread.php?t=1674827
I was always on the fence about doing this because I didn't want to screw anything up, nor void my warranty. I am glad I waited because I recently had an issue with my rear camera and had my Prime replaced under warranty. Now that I have a good working Prime and it's almost out of warranty, I said what the heck and upgraded. I also bought a dock and have finally put the 'Transformer' part of Prime to some good use. I LOVE this thing now.
Click to expand...
Click to collapse
do i need to install anything b4 doing the above 2 steps?
oh im still on ICS not jellybean yet
ChrisChan92 said:
do i need to install anything b4 doing the above 2 steps?
oh im still on ICS not jellybean yet
Click to expand...
Click to collapse
Man, sorry I missed that. If I understand right, look into nvflash. I read with that, you can essentially never brick your prime and if you are still on ICS you can install nvflash. Once you get JB installed, you can flash to Androwook or other custom rom. I am not an expert so please research and good luck.
okay thanks
kay i gtg sleep have work tml. ill check back after work.
sorry for being a total noob and i appreciate all the help. anyway it sounds like nvflash is really important? and what are custom recoverys and how to get that onto my TF201 ICS? hope someone can help me.. thanks in advance!
helps plsss
shoild i install cwm??

is there any possibilities to root an unrooted tf201 with jb 4.1.1?

hello everybody,
I am new here though I've been wandering here for a while looking for advices. Do I need to introduce myself?
I finally decided to ask directly in a new topic hoping that this was not already asked (I looked a lot but nothing directly answered my question).
well as a student, I would like to use my university proxy wich uses a .pac file and the only app that allowed me to use .pac files needs root. Furthermore I'd really appretiate to have a ubuntu flash on my TF201 and this again seems to need root. I once tried to root my TF but it was like the first version of ICS. Since then it seems that I've completely lost root so I was wondering if it was possible to root JB even tough in the end my ICS was not rooted. I also wanted to try a downgrade so that I could root my ICS and then update and finally reroot my JB. But I didn't manage to find a way to downgrade a TF201.
If it has already been asked then my apologies but I really looked around maybe I should have looked more.
thank you very much
Sent from my Transformer Prime TF201 using xda app-developers app
BenjP said:
hello everybody,
I am new here though I've been wandering here for a while looking for advices. Do I need to introduce myself?
I finally decided to ask directly in a new topic hoping that this was not already asked (I looked a lot but nothing directly answered my question).
well as a student, I would like to use my university proxy wich uses a .pac file and the only app that allowed me to use .pac files needs root. Furthermore I'd really appretiate to have a ubuntu flash on my TF201 and this again seems to need root. I once tried to root my TF but it was like the first version of ICS. Since then it seems that I've completely lost root so I was wondering if it was possible to root JB even tough in the end my ICS was not rooted. I also wanted to try a downgrade so that I could root my ICS and then update and finally reroot my JB. But I didn't manage to find a way to downgrade a TF201.
If it has already been asked then my apologies but I really looked around maybe I should have looked more.
thank you very much
Sent from my Transformer Prime TF201 using xda app-developers app
Click to expand...
Click to collapse
You can only root Jellybean if you are unlocked and have a recovery installed like TWRP but if you do that you might as well install a custom rom with root built in.
You cannot downgrade to ICS unless you did the nvflash process while on ICS and kept the files created during the process.
thanks for the answer, I will look for a custom rom though I didn't know I could flash a room with built-in root, that's good news if ever I manage to unlock my prime.
thanks again.
Sent from my Transformer Prime TF201 using xda app-developers app
This is not quite true there is an alternative...
Android and Linux, having a similar heritage, makes it possible for us to get root access over the Android phone if you are running with root privileges within Linux.
Click to expand...
Click to collapse
Don't know how to get this to work, but i am working on it
If I knew a bit about unix programation I would gladly try to find a way to get root access by myself but that's not the case I'm just learning about HTML and java so I'm a long way from this knowledge. Anyway if anyone find something about this I'll take it. I looked for unlocking my bootloader but it seems quite dangerous (risk of bricking my device) since I don't have a way to backup.
anyway thanks for your answer
Sent from my Transformer Prime TF201 using xda app-developers app
BenjP said:
If I knew a bit about unix programation I would gladly try to find a way to get root access by myself but that's not the case I'm just learning about HTML and java so I'm a long way from this knowledge. Anyway if anyone find something about this I'll take it. I looked for unlocking my bootloader but it seems quite dangerous (risk of bricking my device) since I don't have a way to backup.
anyway thanks for your answer
Sent from my Transformer Prime TF201 using xda app-developers app
Click to expand...
Click to collapse
I have no idea what he is quoting above but without unlocking you cannot root jellybean if you have Linux or not.
BenjP said:
If I knew a bit about unix programation I would gladly try to find a way to get root access by myself but that's not the case I'm just learning about HTML and java so I'm a long way from this knowledge. Anyway if anyone find something about this I'll take it. I looked for unlocking my bootloader but it seems quite dangerous (risk of bricking my device) since I don't have a way to backup.
anyway thanks for your answer
Sent from my Transformer Prime TF201 using xda app-developers app
Click to expand...
Click to collapse
I cant remember reading about anybody bricking while unlocking. As far as I know the primary way to brick a prime is to install the wrong recovery for your bootloader. If you are on jellybean via an asus ota update you cant use CWM as your recovery and you can not install the TWRP that is meant for ICS. So unless you pay no attention its pretty hard to brick your prime.
So if neither TWRP nor CWM work as a recovery for my bootloader (I got an OTA jb update) can I still unlock my bootloader? Are these 2 things part of a same thing or are they different? (if the recovry tool doesn't come with the unlocking tool, is it necessary or just highly recomanded?) In fact if somone could explain me a bit more about that recovery tool maybe I would come to understand what I am sayingˆˆ.
Thank you very much!
Sent from my Transformer Prime TF201 using xda app-developers app
BenjP said:
So if neither TWRP nor CWM work as a recovery for my bootloader (I got an OTA jb update) can I still unlock my bootloader? Are these 2 things part of a same thing or are they different? (if the recovry tool doesn't come with the unlocking tool, is it necessary or just highly recomanded?) In fact if somone could explain me a bit more about that recovery tool maybe I would come to understand what I am sayingˆˆ.
Thank you very much!
Sent from my Transformer Prime TF201 using xda app-developers app
Click to expand...
Click to collapse
What you can use after you unlock via the Asus unlock tool is twrp for jellybean. Once you have that you can install any ROM built for the jellybean bootloader
BenjP said:
So if neither TWRP nor CWM work as a recovery for my bootloader (I got an OTA jb update) can I still unlock my bootloader?
Click to expand...
Click to collapse
You misunderstood what whycali told you. Only the version of TWRP for ICS cannot be used if you are on JB Bootloader. TWRP version for JB is the way to go - the only way to go for you :good:.
In the end, I read that the unlock tool from asus normaly used for the ICS version could also work for JB is it true? And, if I unlock my tablet and install a recovery, then I will not be able to get an OTA update anymore, I will need to flash the next updates if I want them aint it? But then, are there any Roms stable enough worth unlocking my tablet? (If only I did root my device before... but in the same time it allowed me to know more about all this stuff).
I hope i don't bother you to much with this.
Sent from my Transformer Prime TF201 using xda app-developers app
BenjP said:
In the end, I read that the unlock tool from asus normaly used for the ICS version could also work for JB is it true? And, if I unlock my tablet and install a recovery, then I will not be able to get an OTA update anymore, I will need to flash the next updates if I want them aint it? But then, are there any Roms stable enough worth unlocking my tablet? (If only I did root my device before... but in the same time it allowed me to know more about all this stuff).
I hope i don't bother you to much with this.
Sent from my Transformer Prime TF201 using xda app-developers app
Click to expand...
Click to collapse
yes the unlock tool works on JB primes. stock ota roms from asus are not stable enough to be worth not unlocking your tablet. both the energy rom and the wookie rom are miles above anything asus will be sending out ota or otherwise. When there are updates the makers of custom roms rapidly incorporate them into the custom rom.
unlock tool doesn`t work + slow sd readings in quadrant
wtf...the unlock tool v6 gives me the message: unknown network error..bla blatry again later >:-/ i already wrote to asus, because iread they take tablets withthis error back(?) but thatsnot what i want...
i wanna root,unlock it and use a f***in CR!!!
i justbought the tfp second hand, andthe performance isnt even close to quadrant score(transformer prime isclose to4000)500 points missing.everything exept IO is as it shud be(3450) all tests score precisely the same , only IO is at 900 points i read from scores close to 6000 @1,7 ghz with custom roms...
is there a alternative 4 thea asus unlock tool? im searching for hours now...please help if u know what to do!
thx in advance

Categories

Resources