[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] electech13:
Had a strange issue that i cant explain or figure out.

To quickly summarize i basically have 3 separate nandroid backups of KT 4.1 that all get stuck at boot when they were fine before and all other backups i have work fine...

To explain and try not to make this too long:

I still use kt's 4.1.2 as my daily but switching to 4.2 very soon. I backup all the time and have many other nandroids of other ROMs i have flashed n tested recently too.

FYI i have a (Rogers) SGH-I747M with TWRP rcvry 2.3.1.

Cuz its my daily i have a lot of apps installed and a lot of data so my nandroids are 2GB's and split the data into 2archive files and a backup or restore usually takes 6-8 mins due to the large size.

I did a backup yesterday and had one for each the 27th and 25th of DEC. I also have about 10 other normal size nandroids of other ROMs i have flashed and tested.

So yesterday i did some other flashing and the last one i did was kt's latest 4.2.1 jb build. Did some basic installs and setup and then backed it up so that's its all setup and good to go when i switch over soon.

When i went to restore yesterdays backup of my daily (the KT 4.1.2 which all use the latest KT kernel BTW) it had an issue loading. Originally i thought it was frozen during restore but it was just taking longer. It was at the data part and restoring the first data archive1 and after about 12 mins (nearly double load time) the status screen quickly flashes to the end showing it DID restore data archive 1 and 2 and then the boot and cache and all the final stats. So other then this delay all looks okay so i reboot...

but during the Initializing Swagger screen it just stays there forever...I've left it for hours. It normally loads in 20-30 seconds. I have reflashed the restore several times with it doing the same apparent freeze and delay.

The odd thing here is that ALL 3 of my backups do this! Yesterdays and the 27/25th as well. But all OTHER nandroids and even my 4.2.1 of KT all load quick and normal and boot fine. And the kicker is that i had previously restored both the 25 and 27th backups successfully in the past couple days.

So what is up with this!?

Here is what i have tried since:

Reloading the backups each several times and this is BTW after doing full factory reset wipes with cache/dalvik clear and format of system partition too.

They all have the latest KT kernel so i tried a couple earlier versions and then even a different kernel all together. No go.

Tried reflashing the 4.1.2 ROM over top and even an upgrade flash of the 4.2 ROM as well but no go.

So what on earth is this about and what could be causing this? Any ideas anyone? Possible fixes?

So all my other nandroid backups restore fine but all 3 of my latest 4.1.2 dailies do not.

I don't have a completely up to date titanium backup of data for some of my apps...a couple weeks old and there is some data i need from a few apps and would like the latest call log and SMS backups as well. That is why i want to get this back before switch to 4.2.

I assume all might be lost and ill have to just reload my 4.2 and restore with what latest data i have which isn't too bad but would prefer to get latest stuff back and more importantly find out WHY this has happened and to avoid it in the future.

Having nandroids not work is not cool and defeats the whole purpose!

So any ideas anyone? Sorry for long post but wanted to clearly explain it all. Any help or suggestions are appreciated.

Thanks

(With kt's latest 4.2.1 build freshly loaded onto phone now)