Hi guys, i had the same problem but i got it fixed!!
When trying to fix it and uploading new roms (unsuccessfully) i made it even worse as when tablet started the screen with connect to kies/firmware error appeared. Only odin was accessible but i couldnt install any roms (again unsuccessful)
What i did then was i downloaded N8010XXUDNE4_OXADNE4_v4.4.2_Repair_Firmware (google it and you will find the file) it has 4 files
-ap file (odin pda)
- bl file (odin bootloader)
- csc file (odin csc)
- pit file (odin pit)
I used odin3 v1.85.
When i tried to upoad all 4 file at once it didnt work. So what i did was
*each time when you try to upload something please restart phone (enter odin mode) and odin on your pc
I uploaded csc file and pit file (if uncesfull than csc file only)
Uploaded bl file (if pit file unsuccessful on first step try bl file, if you cant then upload bl file on its own)
Try to access debug mode now. If it works than upload HighOnAndroidCWMRecoveryGTN8000 and skip next steps. If it doesnt work try step 4
Uploaded csc file (try with pit if pit didnt work earlier, if it doesnt work than try pit on its own)
This worked for me hpoe it will for you - please access debug mode now and upload/intall HighOnAndroidCWMRecoveryGTN8000 from sd card if you have.if not then try through odin.
Using high on adroid install new rom, i installed Android_Revolution_HD-Note_10.1_21.0 i installed it from sd card and HAD MY TABLET CONNECTED TO THE CHARGER ALL TIME.
WHAT IS IMPORTANT AND CAN GO WRONG
Battery level - i’ve noticed that even when tablet was on charger it wasnt charging properly and lots of times tablet restarted. After fixing tablet ive discovered that battery level was at 11%. This issue might stop you from uploading any files through odin. What I did with this was I had a tablet on the charger for 30min-1hour before i started uploading files. If talet started restarting on its own i charged it again for 30-40min
Cable connection might be the problem and also stops you from uploading to the tablet. You can try to reinstall usb drivers or kies (best way is to emove kies, restart pc, install kies with new usb driver, restart pc and then try to upload stuff to tablet). Problem is you wont know whether it works fine as when tablet is off, odin mode it might be ok or not even when showing connected to kies (when doing all uploading on odin, kies was off)
Fix for this was… i used other pc,installed kies and usb driver, restarted it and then started uploading
Hope that helps, let me know if you have any issues