Database Info

How to update to Jelly Bean?

Before anybody says to use the search function, I've been looking through the general topics non-stop for one that applies to my situation, and either it slipped through the cracks (likely) or it doesn't exist (not likely).
Basically, my tablet is rooted and unlocked, and I'm on ICS; the first one that had face unlock in it. I'd really like to update my tab to JB, but I need to be pointed toward directions for updating a rooted and unlocked tab. But on top of that, I also need recent instructions, because I know that earlier attempts at getting this thing updated have resulted in lots of bricked tabs.
If anybody could tell me if it's possible to update my tablet to JB right now, I'd appreciate it, and if someone has figured out how to do it, can you please point me toward that thread? I'd really appreciate it.
-Tim

I'm in the same configuration, custom-ics-rom with twrp recovery on unlocked device.
I believe the first thing to do is enabling NVFLASH, that will make things safer also in the worst cases.
I did that and now hopefully I have an unbrickable device.
I'm a bit confused on how to go forward, I know that there are two versions of twrp, maybe I should install the JB version, booting inside it and then flash the downloaded JB update from ASUS site, or use the twrp for ICS for flashing and after that install the JB version ?
Anyone knows what is the correct option ?
Giuseppe
Tim 13 said:
Before anybody says to use the search function, I've been looking through the general topics non-stop for one that applies to my situation, and either it slipped through the cracks (likely) or it doesn't exist (not likely).
Basically, my tablet is rooted and unlocked, and I'm on ICS; the first one that had face unlock in it. I'd really like to update my tab to JB, but I need to be pointed toward directions for updating a rooted and unlocked tab. But on top of that, I also need recent instructions, because I know that earlier attempts at getting this thing updated have resulted in lots of bricked tabs.
If anybody could tell me if it's possible to update my tablet to JB right now, I'd appreciate it, and if someone has figured out how to do it, can you please point me toward that thread? I'd really appreciate it.
-Tim
Click to expand...
Click to collapse

Keep ICS, as JB will cause much trouble especially if you are rooted, trying to OC and is generally slowein my opinion

I prefer to try it anyway, tomorrow I will try flashing, after all if something will go wrong I should be able to recover with nvflash.
[
QUOTE=grimsonfart;32974661]Keep ICS, as JB will cause much trouble especially if you are rooted, trying to OC and is generally slowein my opinion[/QUOTE]

Thank you, Grim. That's disappointing to hear about JB, but if you think that my current build is better than that (which makes sense considering I've seen at least one thread about downgrading from JB to ICS), then I will keep my tab on ICS for now, and thank you for your input, I appreciate it.
-Tim

If you have twrp recovery, can't you download the jb ROM from the Asus site for your region and flash it in? I'm unlocked and that's how I upgraded one version of jb to another, but my ICS to jb was ota, so in your case I can't speak from experience. There is a full upgrade, and root guide in the general section.
Sent from my ASUS Transformer Pad TF300T using xda app-developers app

I just managed to do what you re looking to achieve.
I m pretty noob so it tok me a whole day to figure it out.
So first download jb update on asus website (pick the right one for ur type of tf300)
Flash it through adb
At that point i got jb installation working but bootloop
So i flashed jb version of twrp (adb)
I then went in recovery and flashed clean rom 2.5 which worked flawlessly
Just for the fun i did factory reset afetrwards and stock jb eventually launched right
Sent from my ASUS Transformer Pad TF300T using xda app-developers app

gst0098 said:
I'm in the same configuration, custom-ics-rom with twrp recovery on unlocked device.
I believe the first thing to do is enabling NVFLASH, that will make things safer also in the worst cases.
I did that and now hopefully I have an unbrickable device.
I'm a bit confused on how to go forward, I know that there are two versions of twrp, maybe I should install the JB version, booting inside it and then flash the downloaded JB update from ASUS site, or use the twrp for ICS for flashing and after that install the JB version ?
Anyone knows what is the correct option ?
Giuseppe
Click to expand...
Click to collapse
I successfully installed jb following the guide on this site, the only thing that was not working was the flashing of the stock rom, neither given options worked (fastboot flash recovery or fastboot flash system) , I discovered that our eepad has a partition nmed staging used for firmware installs. I then flashed with
fastboot flash staging blolb
and all went good.
Btw I find the JB better than ics, more responsive and smoother, and also if it is not yet overcooked.

[Q] ~hI GuYs~ Who wants to help me- Apply Within!

Working with a newly unlocked 10.4.4.20 TF700t running JB 4.1.1
Needing help with
-Applying Nvflash
-Recovery
-Root
-Flashing CleanROM
I have experience and a high comfort level with ANDROID on smartphones, being this is my first tablet I feel like a virgin getting touched for the very first time; and it feels fine. I think once I get the Nvflash to take- well never mind what I think. Thanks for the assistance

Applying nvFlash - umm, are you trying to revert to an nvFlash backup you made? b/c after 9.4.5.26 you cannot use nvFlash (as it is now) with ASUS updates....
It will not work with:
9.4.5.30
10.4.4.16
10.4.4.18
10.4.4.20
Unless you already have a backup made prior to upgrading past 9.4.5.26.

aww shucks, i was starting to get that understanding... on page 9 of the Nvflash for TF700t thread... I think i have enough understanding to get root and flash CleanROM.. but I am now exposed to the possibility of *the word that shall not be spoken*, although I am getting the vibe that the root and flash process is not so dangerous...

harajyuks said:
aww shucks, i was starting to get that understanding... on page 9 of the Nvflash for TF700t thread... I think i have enough understanding to get root and flash CleanROM.. but I am now exposed to the possibility of *the word that shall not be spoken*, although I am getting the vibe that the root and flash process is not so dangerous...
Click to expand...
Click to collapse
I have been rooting lock/unlock since Android came to this world and never brick a device. I would say 99% brick came from operaator error, like flash wrong rom/recovery version, bootloader, rfc file system on ext4, dead battery while flashing, etc... If you know exactly what you are doing and do it carefully, it's pretty safe.

[Q]

Hi everyone
First off I would like to thank everyone who contributes on this board, I have been lurking for quite awhile even though I dont have any android devices, the reading is very interesting.
I have just got my first android device today delivered from BH Photo (I am in Australia) and have charged and powered it up. I have been reading on the forums about rooting and then unlocking. The android version appears to be 4.0.3 (ICS).
My questions are these:
Should I root this device and unlock the bootloader with ICS, then install TWRP and make a backup of it. Once this is done then update to JB? The firmware of the tablet is (I think this is right) IM74K:US_epad_9.4.5.26-20120720 and the kernel is 2.6.39.4 [email protected] #1
or
Update the device to JB then root it, but Im a bit confused with the unlocking part here what program is used to unlock the bootloader? Is it the Asus one? Also with rooting programs which one is more commonly used for both ICS and JB? Can I apply a manual update of JB using the Ausrtalian version instead of the US one.
Sorry for all the noob questions. I have read the index and after reading it still had some questions.
Thank you for your time

deathwalker01 said:
Hi everyone
First off I would like to thank everyone who contributes on this board, I have been lurking for quite awhile even though I dont have any android devices, the reading is very interesting.
I have just got my first android device today delivered from BH Photo (I am in Australia) and have charged and powered it up. I have been reading on the forums about rooting and then unlocking. The android version appears to be 4.0.3 (ICS).
My questions are these:
Should I root this device and unlock the bootloader with ICS, then install TWRP and make a backup of it. Once this is done then update to JB? The firmware of the tablet is (I think this is right) IM74K:US_epad_9.4.5.26-20120720 and the kernel is 2.6.39.4 [email protected] #1
or
Update the device to JB then root it, but Im a bit confused with the unlocking part here what program is used to unlock the bootloader? Is it the Asus one? Also with rooting programs which one is more commonly used for both ICS and JB? Can I apply a manual update of JB using the Ausrtalian version instead of the US one.
Sorry for all the noob questions. I have read the index and after reading it still had some questions.
Thank you for your time
Click to expand...
Click to collapse
Welcome to the Community!
There are a few on-going threads regarding this same topic. You might want to read those and make sure you understand the lingo/jargon being used (like: fastboot, bootloader, Recovery, adb. etc) as well as what it's for before you start your hacking.
Some things to keep in mind
Currently to have Root access in JB, you need to get root in ICS then use OTA Keeper to maintain Root for JB update.
The Bootloader unlocker tool is from ASUS and needs to communicate with ASUS servers for it to unlock.
Unlocking the bootloader will void your warrenty. Make sure you have a good device before you do it.
You have a version of tablet (9.4.5.26) that is able to use NVFlash that can help recover your tablet during a soft brick.
You should use an update that is appropriate for your device. If it comes with US, stay with US. Installing an update for a different region might not cause problems but there is no guarantee. Best to avoid the possibility by staying with the region it comes with.
For some reading material, I think that my blog post might help give you some additional details. However, I highly suggest that it be used for research only until you are aware of exactly what you are trying to accomplish. Remember to ask questions if things are confusing or if you are wondering what needs to be done next. 'Tis better to ask and be delayed than to be over-eager and bricked.
Hope this helps you during your first steps of XDA Android hacking!

I just got my TF700 last week and I wanted cleanrom on it and this is the order of stuff I did:
1. Unlocked bootloader
2. Nvflash setup
3. Installed TWRP
4. Flashed official Asus update
5. I lost TWRP so I installed it again
6. Flashed cleanrom
Probably not the most efficient way, but it was easy to do and didn't take too long.

hong90 said:
I just got my TF700 last week and I wanted cleanrom on it and this is the order of stuff I did:
1. Unlocked bootloader
2. Nvflash setup
3. Installed TWRP
4. Flashed official Asus update
5. I lost TWRP so I installed it again
6. Flashed cleanrom
Probably not the most efficient way, but it was easy to do and didn't take too long.
Click to expand...
Click to collapse
It's the most efficient way.

I have nothing to add except for the remark that NvFlash is key -- GET IT WHILE YOU STILL CAN!
I'm not even kidding here. It gives you 100% flexibility in doing whatever you wish (up- as well as downgrading, even the bootloader!) and provides a key benefit in recovering your device when that whale-sized piece of excrement hits the large ventilator running at top speed.

Thanks to everyone that has replied to my post. I have successfully rooted the tablet and unlocked the bootloader. Before I do anything else Im going to run NVflash and back it up. I have a quick question though. I have download NVFlash to my computer and extracted it. Do I need to copy it across to the tablet and then enter fastboot? I havent got an extenal sd card will it save the images to the tablet's hard drive?
Cheers
Deathwalker

i followed this video:
https://www.youtube.com/watch?v=J3ypzUaKxvo&feature=youtube_gdata_player
i watched it before i actually did it once or twice to make sure i know what to do. you don't need an external sd card. following the fastboot steps will pull the files that you need onto the internal one in a folder

Last night I used NVFlash to make backup of the tablet. A big thank you to alienedd as I followed his blog and also the guide from androidmobi team and managed to get the img files done. Is there anyway to test bar for wiping the tablet?
Now all I have left to do is install OTA RootKeeper and TWRP, back up the existing tablet and then flash a custom ROM (Im thinking cleanrom)

You don't need OTA Rootkeeper anymore because you have unlocked you're bootloader. And custom roms like Cleanrom are already pre-rooted so after flashing the cleanrom you will have root anyway.

[Q] JB back to ICS, still possible to use NvFlash?

I recently purchased my TF700- I wasn't aware of the fact that unlocking the boot loader would void your warranty, and that there was a slightly more complicated process for prepping the TF700 for flashing roms and kernels compared to previous android devices. (This is my first tablet, so I don't know if this is normal for tablets though!) Plus the fact that I need to be on ICS to do everything initially.
And just a BTW, this is comparing it to my experiences w/ the G1, Epic 4G, GS2, and the GS3- where I never actually had to deal with unlocking the boot-loader directly/or having the risk of ruining my warranty.
So basically what happened was that I read through the forums and learned that unlocking the bootloader would void your warranty- and being that it is always risky business + the fact this tablet is a lot more expensive than a phone- I decided I wasn't going to be rooting/flashing roms and kernels and etc, on my TF700. I didn't want the risk of bricking something I just paid $600 bucks for. So I took the OTA update to Jellybean.
With further research though, I found out about NvFlash, and then it would make my tablet brickproof. And that immediately sparked my interest! I read though, that it does not work with the .30 firmware though.
This is where I got a bit confused- I know I can downgrade to ICS (the .30 v tho) and then unlock/root/then flash stuff.
BUT, by me taking the OTA update to 4.1.1 JB, did I **** up my ability to use NvFlash? Cause I really want too unlock my phone and flash roms, but I'm just really scared of bricking my device.
If anyone could help with what my plan of action should be, it would be much appreciated, thanks!

Can't be done unfortunately, you need .26 firmware for nvflash. At the moment you're out of luck :/

****! Well just my luck :/.
I was going to send in my TF700 back in anyways for a replacement since the screen was popping out in the corner, so I guess I'll wait till then!
Thanks for the response!

Just out of curiosity, why doesn't downgrading back to an ICS rom do the trick? Is there something that gets left behind by Asus's JB rom that doesn't get downgraded when you go back to Asus's ICS rom?
Sorry to revive an old thread but I couldn't find a pertinent new thread about this.
Thanks!

pgratz said:
Just out of curiosity, why doesn't downgrading back to an ICS rom do the trick?
Click to expand...
Click to collapse
You need a bootloader that does not check signatures to install the hacked bootloader. You cannot downgrade to such a bootloader, because all later ones do check signatures, and the unsigned ones are rejected.

pgratz said:
Just out of curiosity, why doesn't downgrading back to an ICS rom do the trick? Is there something that gets left behind by Asus's JB rom that doesn't get downgraded when you go back to Asus's ICS rom?
Sorry to revive an old thread but I couldn't find a pertinent new thread about this.
Thanks!
Click to expand...
Click to collapse
Well, Asus had patched the security hole with .26 ICS firmware. They updated the next version of ICS which is .30 and this blocked the exploide. The signature (key) from the ICS .30 is no longer the same as ICS .26. So if you tried to downgrade to .26, you're going to see signature mismatch and it will failed. The signature on ICS .30 and all of the JB are the same, so you can upgrade or downgrade from 30 and up....Here is where the story ended!!

Ah, OK that makes sense. Thanks for the explanation!
Paul

Downgrade from JellyBean to ICS
Hi,
I am very new hear and not sure how to start a new thread. I just purchased the Asus TF700t because it was supposed to have ICS, but I found it has JellyBean. Is there a way to downgrade it to ICS?
Thank you.

etoliway said:
Hi,
I am very new hear and not sure how to start a new thread. I just purchased the Asus TF700t because it was supposed to have ICS, but I found it has JellyBean. Is there a way to downgrade it to ICS?
Thank you.
Click to expand...
Click to collapse
You need to look around a bit.
I attempted an answer for you in another thread that you had replied in.
Please look here >>>> http://forum.xda-developers.com/showpost.php?p=38530719&postcount=5

[Q] How to upgrade from ICS bootloader, nowdays?

Hi,
I'm still on ICS bootloader on my TF300T, some unofficial CM based ROM and a new TWRP. How can I update my bootloader to support newest ROMs? Is it possible without ADB (ex. through terminal)? Does anyone have a ASUS ICS OFW, so it's possible to update OTA? Thanks in advance.

vegitto said:
Hi,
I'm still on ICS bootloader on my TF300T, some unofficial CM based ROM and a new TWRP. How can I update my bootloader to support newest ROMs? Is it possible without ADB (ex. through terminal)? Does anyone have a ASUS ICS OFW, so it's possible to update OTA? Thanks in advance.
Click to expand...
Click to collapse
Theres a couple ways safest i've found is normal download and update. As far as ota if your unlocked no luck there but you can download from asus website place on root of sd or internal storage and wait for triangle to come up in notification back like as if ota. I would go through each update starting from where you left of before flashing cm especially going to 10.4.2.20 to 10.6.1.8 as it uses 10.4.2.20 as base for update from there. Remember once on jb bootloader your stuck there cant downgrade back to ics and theres some major changes to 10.6.1.8 and would have to reroot once get there but with the changes becarful as to what recoveries and roms u use once on 4.2.1 u can only use roms based on that and have to use the twrp 2.4.4.0 patched recovery but there are also alot of unknowns as to asus' new update so caution read and ask before flashing because many are bricking with no fix except nvflash right now. So also i would do and nvflash back up as if something should go wrong its your best and only way outnonce on 10.6.1.8 but back up before going through all this because as of now nvflash isnt available for jb 4.2.1. Goodluck and becarful.
Heresna good thread to read and ask questions on how to go about getting to 10.6.1.8 aka 4.2.1 most of all read and ask before getting into a pickle.
http://forum.xda-developers.com/showthread.php?t=2187982

aerdely said:
Theres a couple ways safest i've found is normal download and update. As far as ota if your unlocked no luck there but you can download from asus website place on root of sd or internal storage and wait for triangle to come up in notification back like as if ota. I would go through each update starting from where you left of before flashing cm especially going to 10.4.2.20 to 10.6.1.8 as it uses 10.4.2.20 as base for update from there. Remember once on jb bootloader your stuck there cant downgrade back to ics and theres some major changes to 10.6.1.8 and would have to reroot once get there but with the changes becarful as to what recoveries and roms u use once on 4.2.1 u can only use roms based on that and have to use the twrp 2.4.4.0 patched recovery but there are also alot of unknowns as to asus' new update so caution read and ask before flashing because many are bricking with no fix except nvflash right now. So also i would do and nvflash back up as if something should go wrong its your best and only way outnonce on 10.6.1.8 but back up before going through all this because as of now nvflash isnt available for jb 4.2.1. Goodluck and becarful.
Heresna good thread to read and ask questions on how to go about getting to 10.6.1.8 aka 4.2.1 most of all read and ask before getting into a pickle.
http://forum.xda-developers.com/showthread.php?t=2187982
Click to expand...
Click to collapse
Note: Good info!
You forgot unzip once after download.

tobdaryl said:
Note: Good info!
You forgot unzip once after download.
Click to expand...
Click to collapse
Yea of course good catch. THANKS. Also in some cases may need to rename as in some times when get to 10.4.2.20 or 10.6.1.8 may have to rename. US_epad-user-10.6.1.8.zip of course not alway US could be WW for world wide or etc but as your updating may not always be the case just i've heard of some having to do this. This also works for downgrading and renaming your current firmware version as a previous version to do a reinstall had to do that once to fix a random reboot problem and works. I've heard of some downgrading as far as first jb build but thats as far as i've seen anyone can go.
Good luck as far as getting back to stock not totally sure you may know better than me or can ask some one on the thread i gave you i've never been rooted because affraid to void warranty just to safe but been doing alot of reading a research for when i decide to do so. Rooted like 10 of my passed other phones why not this one eventually just being safe from what i've seen happen to people with this new update.

aerdely said:
Theres a couple ways safest i've found is normal download and update. As far as ota if your unlocked no luck there but you can download from asus website place on root of sd or internal storage and wait for triangle to come up in notification back like as if ota. I would go through each update starting from where you left of before flashing cm especially going to 10.4.2.20 to 10.6.1.8 as it uses 10.4.2.20 as base for update from there. Remember once on jb bootloader your stuck there cant downgrade back to ics and theres some major changes to 10.6.1.8 and would have to reroot once get there but with the changes becarful as to what recoveries and roms u use once on 4.2.1 u can only use roms based on that and have to use the twrp 2.4.4.0 patched recovery but there are also alot of unknowns as to asus' new update so caution read and ask before flashing because many are bricking with no fix except nvflash right now. So also i would do and nvflash back up as if something should go wrong its your best and only way outnonce on 10.6.1.8 but back up before going through all this because as of now nvflash isnt available for jb 4.2.1. Goodluck and becarful.
Heresna good thread to read and ask questions on how to go about getting to 10.6.1.8 aka 4.2.1 most of all read and ask before getting into a pickle.
http://forum.xda-developers.com/showthread.php?t=2187982
Click to expand...
Click to collapse
I'll second this advice. I just upgraded my tablet from ICS yesterday, too, and this is exactly what I did. It worked great. I stopped at the last 4.1 update, though, because CM won't work on 4.2 yet.
And I second^2 the advice about setting up NVFlash before flashing the Jellybean update. I did that, too. Of course, I was doubly motivated by the fact that I had just recovered from a seven-month soft-brick (which was why I was still on ICS).
Anyway, good luck, and enjoy the Jellybean update.
Putting the ILLA in KILLA since 1985

Thanks, I'll NVflash first... Just where do I get androidroot.mobi bootloader from? Can't find it.

vegitto said:
Thanks, I'll NVflash first... Just where do I get androidroot.mobi bootloader from? Can't find it.
Click to expand...
Click to collapse
The NVFlash thread links to a page at androidroot.mobi about the NVFlash release. That page links to a guide. At the bottom of the guide are two things you have to download (there are many links to downloads, but you only need the two that correspond to your OS and tablet). One is the NVFlash binary. You'll know because it only contains one file called NVFlash. The other includes the specific files for your tablet, including the bootloader.
So, just follow the guide on the AndroidRoot.mobi site, and you'll be fine.
Edit: Here's the guide I'm talking about: http://androidroot.mobi/t3_nvflash/
If you're using Windows, you may actually need to download three files, the third being the drivers.
Putting the ILLA in KILLA since 1985

In windows, the android SDK/Fasrboot are more clear to me, so I'll now just download the ROMs and files for later use. Thanks everyone