Another confirmed case OTA RootKeeper worked.
The first step was I re-enable all the stuff I had disabled. I then used Titanium to make a good backup just in case. After backup completed, I rebooted just to have a clean screen. Went in OTA RootKeeper and do the temp. unroot. Download the update and install. Let the tablet reboot itself and used OTA to restore root.
This was the first time I had a smooth OTA update. The last several messed up (every time) I had to do the full flash to make the tablet useable.
Strange. I was in .10 totally Stock rom no root and no unlock.
i unlock it with asus tool (not needed bu i did it) I downgrade to .8 lost all my files i just save 2 or 3 game only. So i restart with pleasure to zero.
I root it, just install ota root keeper only. i save Root and clik Temp unroot.
And like i said it don't work.
I will try again one last time, if it don't work i will install cromi X.
What i will do :
Downgrade again to .8
Root with motochopper
protect root and Temp uroot
Download from tablet the update
And crosss fingers.
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Last attempt i had update tablet with zip fil and no download maybe it's the cause ?