Hi ranf,
I did based on your thread. Unsatisfied and still having issue with recovery.
Mainly is OTA update gone as I unlocked the bootloader in order to install recovery.
Although give up OTA, there was no permanent TWRP CWM Philz recoveries are able to install on SGP511.
What I did here is, I got temp TWRP given by your thread. Mean while, I installed pre rooted firmware by kulvertti.
Was the recovery, root, firmware are hook up each other?
Please kindly share If you got any idea about recovery which able to install on latest firmware with lock bootloader.
Anyway really appreciate for your info.