[Galaxy Note 8.0 (Tablet) General] intelliriffer:
I Downgraded My 5100 from Stock 4.2.2 (OXA/DBT) Germany Back to 4.1.2 Stock (INU) INDIA. Which is perfectly being detected by Kies.

I stuck with 4.2.2 for about 9 days, but we couldn't reach a compromise.

So here are some of findings and (some info for new users like me on how to do that)

Findings:

1:S-pen accuracy is back bringing a big smile on my face. :)

2: Battery Drain: All is can say is just picked up the note after 2 hours idling and battery was down by merely 2% (this is with Wifi on and cell radio all the time, as well as news widget and things running. I am pretty certain with juice defender kinda app id be able to get it down bit further as compared to 4.2.2 eating much more like 2%/H or more just idling. It also seems to be better while using the note.

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Downgrading if you updated to OXA/DBT ROM and you are not from Germany or other supported Open europe Region.

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1. Get a Copy of the 4.1.2 Stock Rom for your device and country **Important Double check that you have the correct file.

2. *** BackUp your SD Card Data however way you can (if unrooted like me), I Lost some of my sketchbook pro stuff and some other because they don't store those in default locations and the HELIUM backup app did not back up those tif files.

3. Once you sure you ready, wipe the factory /data from settings or booting into recovery (might be necessary , but i did this nevertheless)

4. if you wiped the data, then start note and make sure USB debugging in enabled in developer options (enable them by the 7 tap method on the build label in about).

5.power off the tablet and boot into ODIN download mode (You should already know this, but anyways, Hold Power, Vol Down and Home button until android options appear , then hit up on volume to agree,

6. Launch Odin (3.07 or similar) on PC (as administrator) and then plug in the USB Cable

7. Some com port name should appear first box on top in some color (mine is com:6)

8: Make sure reboot and Reset f.time options are the ones only checked.

9: Click PDA button to load the .tar.md5 file you downloaded (You need to extract these from the Zip file you loaded (zip should have a tar.md5 file and another dll file)).

10. Wait for Odin it to verify the file.

11. Once Odin has Verified the File, you can hit the start button to start flashing. and once it completes (take few minutes) Reboot. the Note

12. If you seem to be stuck at samsung logo animation after reboot, don't panic (cause i did already), hold the power button until the device turns off, then boot it into recovery mode (hold home, volume up and power button and release once you see android logo)

13. use volume to select wipe / data factory reset and hit power button to confirm , confirm again. and it should say erasing and be ready for you in a minute or so. (btw Do not panic if it says applying Multi-CSC (DBT) instead of your region one)

14. Boot into the tablet and set up your settings config etc and you should now be running 4.1.2 again and it should have also changed the CSC which can be checked by dialing #*1234# and later you can check it kies as well.

Hope it helps others new to note 8 downgrading, if need ever be.