I read some worrisome posts that once you upgrade the bootloader to 4.4.2 you cannot go back. I'm currently running fully functional 4.3 rom and have nandroid backup of it, where everything is working. I'd like to try to upgrade to KitKat rom, but if things don't go well for whatever reason - I'd like to have the security of knowing I can restore the nandroid of my working 4.3 rom. Based on what I read it may not be possible. My nandroid backup has all partitions in it, including boot and recovery (twrp 18.104.22.168). Can anyone confirm or deny if I'm on 4.4 rom with 4.4.2 bootloader, running twrp 2.7 - will I be able to restore my 4.3 nandroid, if needed?