Cannot encrypt TPT after factory reset?!

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I recently updated to 0089_US using CWM patched version & proceeded to perform the device encryption.
Everything went smoothly & the TPT performed as per normal.
However, three days ago, it suddenly started to act up & after a reboot, I started encountering a series of Force Close repeatedly on almost every other application I try to use.
Nothing I tried to do to recover from this problem resolved the problem.
As a last resort, I backed up all the data that I can access & performed a factory reset (Privacy | Factory reset).
After the factory reset, I setup my TPT & tried to perform the encryption again.
This is when I discovered that something is wrong.
I was not greeted with the usual dialogue that I encountered in the first successful encryption process.l
Instead, after confirming that I want to encrypt the tablet, all I get is a green android icon without any indication of any process going on in the background.
Pressing the Home button brings me back to the desktop minus the taskbar (Back, Home & Task switcher) at the bottom.
After the screen or screen lock timeout, the TPT will lock. Unlocking it will bring me back to the green android icon.
This is how it looks like:

Link to picture

This is how it should be if it was working normally:

Link to picture

I've already factory reset the TPT 3-4 times but each time, the situation is the same.
I've just tried reflashing 0089_US again & the situation has not changed.
Can someone advise me what is wrong here?
I've not placed any data back on my TPT at this point.
Please advise me as I need it to be encrypted.
Thanks!

Update: After reading this thread, I got the idea that if I can get my hands on a stock 0076_US NANDROID backup, perhaps I can get it back to the original state. My own NANDROID backups did not work because the data & system files did not successfully convert to .img files after the backup. I got an error that the CWM backup failed to generate the data backup because /sdcard/.android_secure cannot be found.

Konker
PS: I posted this at the Lenovo forum here but did not get any response.

Can I use CWM to restore system.img alone?

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I'm wondering if its worth a try to restore a system.img to my TPT? I've since restored my data & apps using Titanium Backup.
I got a feeling that the system files are somehow not properly restored when performing the factory reset. Of course I would need a system.img file to restore so anyone who has a 0089_US system.img file to spare, I'll greatly appreciate it. Not sure if I'll lose root in the process.
Anyone with any clue as to what I'm facing, please point me in the right direction.
TIA!

Konker

Someone posted a nandroid for u in xda

Sent from my Galaxy Nexus using Tapatalk 2 Beta-4

Thanks!

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Originally Posted by ker2gsr

Someone posted a nandroid for u in xda

Thanks!
I just saw it & am downloading now as we speak.
Are there any issues I should be aware of in using this Nandroid backup to roll back to 0075_US on my updated 0089_US TPT?
Please advise me accordingly.

Konker

Originally Posted by konker

Thanks!
I just saw it & am downloading now as we speak.
Are there any issues I should be aware of in using this Nandroid backup to roll back to 0075_US on my updated 0089_US TPT?
Please advise me accordingly.

Konker

I don't think so I've downgraded to my .75 nandroid from the cm9 port everything went ok

Sent from my Galaxy Nexus using Tapatalk