Restoring to Stock ROM on GT- P3100
I own a Samsung Galaxy Tab2 P3100,recently I rooted it and flashed Ubuntu,it was successful but I was unhappy with what Ubuntu offers me right now.
Now,I want to switch back to the backup which I created when I was on stock.
Will this work
Factory reset --> Wipe Dalvik Cache --> Wipe Everything --> Restore to Stock ROM (Backup)
Everywhere I see here,they mention downloading the stock rom and then installing it with odin. Is it needed?Can't we just restore to a backup with wiping everything?
Thanks in advance!!