i dont see any benefit of doing so...

i'm guessing upgrade ram by replacing ram module on the n7?

those who came from 4.2.1 rooted to 4.2.2 , does it wipe data after update and then reroot with this method?:

http://www.teamandroid.com/2013/02/12/root...cwm-recovery/2/

should have a way to not flash stock 4.2.1..hmm

what error sign? any error message?

For those who need an app to extract the system.img files, etc, use this tool:

http://forum.xda-developers.com/showthread.php?t=1921399

I managed to get the power.grouper.so from the stock 4.2.1 system.img and am flashing 4.2.2 now..

is it with X symbol or with exclamation mark? if exclamation mark is recovery mode..

BTW i managed to upgrade from 4.2.1 stock rooted with custom kernel to stock 4.2.2 (maintaining root) by doing this:

1. Use Voodoo OTA Rootkeper to backup your root and temporarily unroot.
2. Revert back to stock kernel here: http://forum.xda-developers.com/showthread.php?p=34254473
3. Revert to original power.grouper.so, extract system.img from google's 4.2.1 full 200mb+ original firmware and extract using http://forum.xda-developers.com/showthread.php?t=1921399. It's in /system/vendor/lib/hw
4. Get the new 4.2.2 update: http://android.clients.google.com/packages...0D.6ece895e.zip
5. Flash with custom recovery (I used TWRP at the time)
6. Reboot. Use voodoo ota rootkeeper to restore backup SU to get back root.
7. Flash TWRP or CWM using fastboot mode or you can use the Nexus 7 toolkit via menu option 11 (just choose 4.2.1 when prompted with firmware version, don't worry, option 11 will work with 4.2.2 too)

Done

Note: If you're on Custom ROM the above won't work for obvious reasons

This post has been edited by CyberKewl: Feb 15 2013, 11:50 AM

That's the point i mention in no 6 - use voodoo ota rootkeeper to restore the supersu which is root...you have to backup first using the same app before you update, then restore it using the same app after update to 4.2.2...

Yes that's what I am saying..i'm already on 4.2.2 on my Nexus 7, it works fine

As others said, all you need to do is follow my instructions provided you are on stock 4.2.1 rooted..if you're on custom ROM my instructions won't work for obvious reasons.

Bingo. I've updated my original post to make sure no confusions there

see my instructions 1-2 pages back..i was using TWRP too but dont update via the auto update, it might not work..my method is to manually get the update zip file and install it using TWRP.

my instructions has the link to stock kernel which you can download and flash it..the filename starts with CWM (clockworkmod) but you can flash it with TWRP, no worries...for power.grouper just put it in the folder i mention using apps like root explorer or es file explorer...

this i'm not sure...probably not i guess, you might need to do some research there.

tilapia = codename for nexus 7 3g. nakasi = codename for nexus 7 wifi. You cannot flash nakasi firmware without possibly bricking your device or cause some other weird problem.

no issue on mine..where did u press the + button? try it in homescreen...if still cannot work something not right with your update i guess

dont understand..when u say you cant adjust using touchscreen, where do you adjust it? settings dialog? or do you mean press volume +, then use the slider onscreen to adjust? mine can, no problem...try check if you have some other volume mod apps installed, that could possibly conflict also..

weird..no idea then..if the volume button still works as it is (really + increases and - really decreases the actual volume), then just ignore this small thing la..unless u really use it a lot..try asking around xda developers forum

This Lenix guy looks like a spambot or something..just check his profile and look at all his posts from the very first till now, all less than 5 words..starting around 2 am plus this morning till now already got more than 800 posts!

EDIT: He's toast.

This post has been edited by CyberKewl: Feb 24 2013, 11:03 AM