I have been having weird issues with root on the latest OTA update. After the update, I found that I lost root and so installed the SuperSu using TWRP recovery again. However, could not get root access back. Tried this like 3-4 times but still didn't work.
After that I took a nandroid backup (didn't have any backup till now) and wiped the cache and data. And after reboot I get root but if I restore the data partition from the nandroid backup, root is lost again.
Now I want root but don't want to get rid of the data.
Also, if its useful anyhow, in the superuser app - under su binary v2.00 "-rwxr-xr-x" is red, "root root" is green and "/system/xbin/su" is green.
Anyhelp will be much appreciated.