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For those with 'partial' root after JB update - regain root!

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By thenrz, Senior Member on 29th September 2012, 09:53 AM
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2nd October 2012, 08:00 AM |#41  
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Thanks OP.... followed your steps and I have restored root after JB Update
FYI the numbered steps with a didn't work but I followed the rest and its worked.
 
 
2nd October 2012, 04:06 PM |#42  
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Didn't work for me. I had access to # in adb shell, but after doing the steps now I get

1|shell@android:/ $

So I'm guessing I lost root. Very frustrating. Hopefully someone finds a method to root JB quickly.
2nd October 2012, 08:43 PM |#43  
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Finally got ADB to work and give me the root prompt but can't get past stage 11 : "mount: Operation not permitted". I take it this means I've lost root for good?
2nd October 2012, 09:03 PM |#44  
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Asus relleased 4.1 firmware on asus support. Put on sd and update....

Inviato dal mio Transformer Prime TF201 con Tapatalk 2
3rd October 2012, 07:39 PM |#45  
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Quote:
Originally Posted by valentinrascu

Asus relleased 4.1 firmware on asus support. Put on sd and update....

Inviato dal mio Transformer Prime TF201 con Tapatalk 2

After updating to JB, isn't that the same thing as doing a factory reset? I fail to see how this will help.
4th October 2012, 10:12 PM |#46  
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Big thanks to the OP for the method but please note for any lazy people like me who are copy/pasting that there are a few typos that will cause errors if you are pushing the files as named in the supplied zip:


In the lines below change the "s" to "S"

4. adb push C:\(location of attached files)\superuser.apk /data/local/tmp
8. chmod 644 /data/local/tmp/superuser.apk
18a. chmod 644 /system/app/superuser.apk


Also in the lines below change the "C"s to "c"s .

14a. Chmod 755 /system/bin/busybox
14b. Chmod 755 /system/xbin/busybox
18a. Chmod 644 /system/app/Superuser.apk
7th October 2012, 07:17 AM |#47  
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I just figured something out. I found a su-backup in /system/usr/we-need-root . I have lost root again since making this guide. My permissions were screwed up on su. I was able to restore root by doing the following:

Code:
adb shell:
$ cd /system/usr/we-need-root
$./su-backup; su  (that is a semicolon immediately after the ./su-backup)
# mount -o remount,rw /system
(do what needs to be done)
#exit
...
su-backup must have permissions as such: (get permissions by typing this into adb shell: ls -l /system/usr/we-need-root ) If you get an error, than this specifically won't work for you.

Code:
Required su-backup permissions for manual root restore
$ ls -l /system/usr/we-need-root/su-backup
-rwsr-sr-x  root  ...
basically, if you can find a su-backup with proper permissions (and cannot restore root with voodoo or supersu), you can manually use that to repair your root access configuration. Maybe this is well known... but to those who don't this could be useful.
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7th October 2012, 07:04 PM |#48  
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Thumbs up Root restored
this last peace worked for me root has been fully restored
8th October 2012, 02:54 AM |#49  
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I have a su located in /system/xbin/ and su-backup located in /system/. Will this work for me? What would I need to do?
8th October 2012, 03:03 AM |#50  
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Quote:
Originally Posted by Scumbag Inc.

I have a su located in /system/xbin/ and su-backup located in /system/. Will this work for me? What would I need to do?

If you have adb access, get into a shell and type su then hit enter. Post what happens and we can go from there.
8th October 2012, 03:03 AM |#51  
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You sound like you are in the position I was in before a full wipe and reinstall of full OS from ASUS site. I had tried every method and some tinkering of my own and couldnt get a root prompt.

The key to all of this is begin able to remount the file system as rear/write so you can put files in /system/bin and system/app so you can SU at will.

Without that ability you are screwed so it essentially takes a "hack/exploit" to get root initially so you can then install the proper files to get root permanently.
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prime, restore root, root, tf201

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