Easy regain partial root with jellybean! - Asus Eee Pad Transformer Prime

ok guys so i wanted to post this because ive been sitting here for two days trying to regain root on my prime after doing a factory reset to speed it up! It was pretty damn slow so i bit the bullet and its much faster now but unfortunately no root I tried to use the debugfs root method and it wasnt working multiple errors and still no root. Now a few things first i had used voodoo in the past to protect root, it sorta worked, voodoo stated my device had root but no program could actually get root. Also like i said the debugfs method was a no go and a few other options i tried. Im currently locked and rooted with full permissions. These are not my instructions but they solved my problem way too easily so i had to share. I found this over in the tf300 forums at this thread Nooktablets tf300 rooting thread i dont know if this will work if u have never rooted or never once backed up.. But i was having problems with errors in other methods so try it out and let me know how it works..
directions:
1) Download the unsure su from here and put it somewhere on your C Drive. It will be used in the following push step (Assuming windows) (This is a WIDE OPEN su without any controls). (sparky root i believe?)
https://www.dropbox.com/sh/jcpilpgoeta516e/tCB-Ep-3YQ
2) start a CMD window and logon to adb
3) su -
4) verify you have root:
id
uid=0(root) gid=0(root)........
If you don't you can try these instead of 'su':
"/system/su-backup" or "/system/su_backup"
5) remount system as RW:
mount -o remount,rw /dev/block/mmcblk0p1 /system
6) make a backup of current su just in case in adb
cat /system/bin/su > /system/bin/su1
7) open a new CMD window and push the su binary from step 1 to the sdcard using the path from where ever you put it.
adb push c:\<some path>\su /sdcard/
8) Then copy it to /system/bin from the adb session where you su'd.
cat /sdcard/su > /system/bin/su
9) Change permissions for SU
chmod 6755 /system/bin/su
10) download superuser (NOT SUPERSU) from play store if you do not have it already.
11) have superuser upgrade the su binary. It may fail to remount system as RO. Just rerun the update in superuser and it will work the 2nd time. You don't need to remount system as RO manually since superuser update of SU will do that for you.
12) congrats. your now rerooted.
13) remove the backup after you know your OKAY.
mount -o remount,rw /dev/block/mmcblk0p1 /system
rm /system/bin/su1
mount -o remount,ro /dev/block/mmcblk0p1 /system

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franky_402 said:
ok guys so i wanted to post this because ive been sitting here for two days trying to regain root on my prime after doing a factory reset to speed it up! It was pretty damn slow so i bit the bullet and its much faster now but unfortunately no root I tried to use the debugfs root method and it wasnt working multiple errors and still no root. Now a few things first i had used voodoo in the past to protect root, it sorta worked, voodoo stated my device had root but no program could actually get root. Also like i said the debugfs method was a no go and a few other options i tried. Im currently locked and rooted with full permissions. These are not my instructions but they solved my problem way too easily so i had to share. I found this over in the tf300 forums at this thread Nooktablets tf300 rooting thread i dont know if this will work if u have never rooted or never once backed up.. But i was having problems with errors in other methods so try it out and let me know how it works..
directions:
1) Download the unsure su from here and put it somewhere on your C Drive. It will be used in the following push step (Assuming windows) (This is a WIDE OPEN su without any controls). (sparky root i believe?)
https://www.dropbox.com/sh/jcpilpgoeta516e/tCB-Ep-3YQ
2) start a CMD window and logon to adb
3) su -
4) verify you have root:
id
uid=0(root) gid=0(root)........
If you don't you can try these instead of 'su':
"/system/su-backup" or "/system/su_backup"
5) remount system as RW:
mount -o remount,rw /dev/block/mmcblk0p1 /system
6) make a backup of current su just in case in adb
cat /system/bin/su > /system/bin/su1
7) open a new CMD window and push the su binary from step 1 to the sdcard using the path from where ever you put it.
adb push c:\<some path>\su /sdcard/
8) Then copy it to /system/bin from the adb session where you su'd.
cat /sdcard/su > /system/bin/su
9) Change permissions for SU
chmod 6755 /system/bin/su
10) download superuser (NOT SUPERSU) from play store if you do not have it already.
11) have superuser upgrade the su binary. It may fail to remount system as RO. Just rerun the update in superuser and it will work the 2nd time. You don't need to remount system as RO manually since superuser update of SU will do that for you.
12) congrats. your now rerooted.
13) remove the backup after you know your OKAY.
mount -o remount,rw /dev/block/mmcblk0p1 /system
rm /system/bin/su1
mount -o remount,ro /dev/block/mmcblk0p1 /system
Click to expand...
Click to collapse
This procedure worked for my TF201 with partial root after updating to 4.1.1. The only issue was step 11, the forced update of Superuser's su binary. The message was “Making sure new su works..." but the result after several minutes was still "Waiting....". Should I rerun the forced su update? Despite this Vodoo OTA Rootkeeper did restore root without problem and Root Checker says thumbs up.
At this point, is there anything to do like switching to SuperSU that would make the root more future-proof?

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Thank You! I have been trying to regain root after jellybean ota on my Motorola Atrix HD for the last week and a half. Finally success . I cant thank you enough!

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After I upgraded ota to jb. Su ceased to work entirely the binary would not update. and all root apps were no longer working. i did have a su-backup but was getting nowhere in my attempts to use the app. i was only able to invoke a root prompt. i looked all over the internet not just the xda forums. i tried mattigriffs root restore. i typed into a command prompt for several hours each day.. all i ever got was a root prompt in adb shell. no prompt on the phone emulator. this is the only page that has worked for me. i noticed right away that the code was written differently than any other that i tried. also the su used is different(it is described as wide open) any way because of this i felt that others who were /are in the same boat. no root. may be able to get root back. I hope that answers your question. have a great day! .

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You should be able to switch to a different root app. Never used this method but I have switched from superuser to supersu. Install superuser and run the binary update. Should tell you your binary is out of date with the name of the binary for the other root app. Update and reboot, then go back to superuser and check the binary update again. If it says it's up to date, uninstall the old root app and move superuser to /system/app. Reboot and you're good to go!
Sent from my Atrix HD MAXX

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i think i tried that. istalling and uninstalling and subdstituting su and supersu. was not updating no matter what. also my adb push was not working so i copy pasted the su with my laptop while in adb shell. also updated su binary while in shell. it was already a system app from my previous attempts. anyway im good now

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any one get it to work with no root/first time root? my prime wouldnt update via ota once on ics so i had to use the sd card update method to update. and from then on i never rooted again i then updated to jb and until 2 days ago i wanted to reroot but noticed there was no root method for jb yet. voodo root keeper just has super user app installed and ./system supports root protection both checked.

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I'm in the same situation as fcortes626, I had to upgrade via sdcard method, and voodoo root keeper didn't maintain the root. I can't find any su backup in my filesystem.

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I wonder if we can downgrade using the sd card update then root and go on from there........?
Sent from my SGH-T999 using xda app-developers app