[GUIDE][13/11]Update/Recovery/Root/Downgrade Android 4.2.1 on Unlocked/Locked Devices

[aerdely]

Re: [GUIDE] Update/Recovery/Root Android 4.2.1 on Unlocked Devices

Probably not. Unlike many Android handsets and tablets, there does not appear to be a way to "flash" a recovery via the bootloader (for instance with a Rezound you can create a PH98IMG.ZIP file to flash in bootloader that can update kernels, splash screens, and recoveries, so you don't need to be connected to a PC as long as you can get the files on the handset). On the Transformer, it appears that flashing a custom recovery requires fastboot.

Ah ok yea had many in passed where that was possible usually was an htc but was just putting it out there. Asus is a good device love it but seem to have it buttoned up pretty good besides letting us unl0ck the bootloader unless being able to use fastboot. Wont be a problem in couple weeks will have access to a pc but just hoping. Sort of held off on asking because on how new the update was just monitoring to see if something popped up. Thanks for info though. Jusst gonna have to try to get access to a pc then.

Sent from my ASUS Transformer Pad TF300T using xda app-developers app

 

[dymndback]

There where a lot of issues regarding Wi-Fi, Bluetooth and hdmi regarding Android 4.2.1 that were fixed on 4.2.2. But I think Asus got over them. Please try to fix permissions and see if Bluetooth works. I don't have my tablet with me at the moment and I didn't test my Bluetooth yet

Sent from my WT19i using xda app-developers app

What should the permissions be?

 

[Erckul]

So the ultimate answer is yes you can use the terminal, but not in this case because you will have lost root, so flash tarp with fastboot then flash root using twrp.

Sent from my ASUS Transformer Pad TF300T using Tapatalk 2

you are correct. you must use a computer to obtain SU. after that just make sure that you INSTALL THE PATCHED VERSION OF TWRP, which can be found in the OP. It is #3 under INSTALLING TWRP RECOVERY

 

[ricco333]

What should the permissions be?

boot into TWRP recovery, select advanced, fix permissions, then reboot.

Erik

 

[Samsung.Galaxy.S3]

Unlocked and rooted!! Thanks for a great set of instructions! Worked perfectly. Now onward to go peek at the ROMs...

 

[kyokeun1234]

Re: [GUIDE] Update/Recovery/Root Android 4.2.1 on Unlocked Devices

What should the permissions be?

Theres a fix permission setting in twrp under advanced I believe. It's not literally fixing root permission or anything like that

Sent from my ASUS Transformer Pad TF300T using Tapatalk HD

 

[funnel71]

Re: [GUIDE] Update/Recovery/Root Android 4.2.1 on Unlocked Devices

Theres a fix permission setting in twrp under advanced I believe. It's not literally fixing root permission or anything like that

Sent from my ASUS Transformer Pad TF300T using Tapatalk HD

Could you, or someone, advise exactly what permissions it fixes? I have everything working, just curious if this would be more of an improvement.

Sent from my ASUS Transformer Pad TF300T using Tapatalk 2

 

[kyokeun1234]

Re: [GUIDE] Update/Recovery/Root Android 4.2.1 on Unlocked Devices

Could you, or someone, advise exactly what permissions it fixes? I have everything working, just curious if this would be more of an improvement.

Sent from my ASUS Transformer Pad TF300T using Tapatalk 2

If everything is working, I wouldn't fix permissions. But if you want to know, just Google search
To be honest, I don't exactly know either lol.

Sent from my ASUS Transformer Pad TF300T using Tapatalk HD

 

[joelalmeidaptg]

Linux filesystems have specific permissions, for security reasons. Sometimes if a permission is wrong, you won't get access to a file. Fix permissions will fix that for you

 

[kyokeun1234]

Re: [GUIDE] Update/Recovery/Root Android 4.2.1 on Unlocked Devices

Linux filesystems have specific permissions, for security reasons. Sometimes if a permission is wrong, you won't get access to a file. Fix permissions will fix that for you

Well everyday is a school day
Thanks!!

Sent from my ASUS Transformer Pad TF300T using Tapatalk HD

 

[dymndback]

boot into TWRP recovery, select advanced, fix permissions, then reboot.

Erik

Duh... I should've remembered to do that from my time rooting and flashing my old droid2. Thanks for the reminder.
So I did that, but my tablet still doesn't see my ps3 controller. It works fine plugged in, but no wireless connectivity.

Since I'm rooted, decided to go with sixaxis app. Now I have wireless again, yeah.

---------- Post added at 06:48 PM ---------- Previous post was at 06:03 PM ----------

TWRP recovery is not recognizing my sd card. Any thoughts?

 

[kyokeun1234]

Re: [GUIDE] Update/Recovery/Root Android 4.2.1 on Unlocked Devices

Duh... I should've remembered to do that from my time rooting and flashing my old droid2. Thanks for the reminder.
So I did that, but my tablet still doesn't see my ps3 controller. It works fine plugged in, but no wireless connectivity.

Since I'm rooted, decided to go with sixaxis app. Now I have wireless again, yeah.

---------- Post added at 06:48 PM ---------- Previous post was at 06:03 PM ----------

TWRP recovery is not recognizing my sd card. Any thoughts?

you gotta mount external storage and then change it so that you are looking at external storage, not internal. TWRP should have no problem reading external storage. At least I had no problem.

Sent from my ASUS Transformer Pad TF300T using Tapatalk HD

 

[hcoling]

Every worked fine after upgrade, installed custom recovery, root. Only a few apps stop working because of Link2SD I'm guessing. Only needed to re-install and now everything is fine. Very nice updates. Thanks!

 

[dymndback]

Re: [GUIDE] Update/Recovery/Root Android 4.2.1 on Unlocked Devices

you gotta mount external storage and then change it so that you are looking at external storage, not internal. TWRP should have no problem reading external storage. At least I had no problem.

Sent from my ASUS Transformer Pad TF300T using Tapatalk HD

So I've tried that, but it keeps jumping back to internal storage. Log says "failure to mount"

Sent from my ASUS Transformer Pad TF300T using xda app-developers app

 

[pjc21]

So I've tried that, but it keeps jumping back to internal storage. Log says "failure to mount"

Sent from my ASUS Transformer Pad TF300T using xda app-developers app

Your not alone here dymndback, I have the same issue with external sd not mounting. It will mount fine in andoid and on pc.

I have been looking into it but no luck yet.

 

[wirikidor]

Thanks

I am one of those people who downloaded the OTA to 4.2.1 and then tried to root... the V7 unlocker worked for me but I couldn't install a recovery that could read the internal storage.

Anyway, your patched twrp.blob is exactly what I needed, after that I was able to install root and all is well with the world. Thanks. :good:

 

[kyokeun1234]

Re: [GUIDE] Update/Recovery/Root Android 4.2.1 on Unlocked Devices

So I've tried that, but it keeps jumping back to internal storage. Log says "failure to mount"

Sent from my ASUS Transformer Pad TF300T using xda app-developers app

That's really odd since TWRP read mine fine...


Sent from my Nexus 4 using Tapatalk 2

 

[Godfather13]

Hello all,

I am currently running Hydro Rom with twrp 2.4.3.0, I would like to update to 4.2.1 and I am little confused on the method 3.
Can I flash directly with my actual twrp 2.4.3.0 or should I update it before to 2.4.4.0 JB and reinstall it again after flashing 4.2.1 ?

Thank you for your help !!
---------------------------------

ok just updated to twrp 2.4.4.0 JB before => flash zip => as I performed a factory reset it says no OS installed => nevermind reboot and now it's ok 4.2.1

 

[charly0188]

So?

Hi everybody!

So I am no running the 4.2.1 update so the new bootloader too... Here is my question if I follow the process described here and flash twrp I should have a working recovery. But then can I just flash cm10.1? The bootloader won't be change ? So will it be possible to use the recovery integrated in cm10.1 kernel?


Thanks for your answers!

 

[kyokeun1234]

Re: [GUIDE] Update/Recovery/Root Android 4.2.1 on Unlocked Devices

Hi everybody!

So I am no running the 4.2.1 update so the new bootloader too... Here is my question if I follow the process described here and flash twrp I should have a working recovery. But then can I just flash cm10.1? The bootloader won't be change ? So will it be possible to use the recovery integrated in cm10.1 kernel?


Thanks for your answers!

As far as I know, cm uses 4.1 bootloader so I think you'll soft brick your tablet when flashing cm while having 4.2 bootloader.

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