If you have a Custom recovery rom and are using this ROM , then DO NOT install the OTA update that you get. If you do then you will be stuck in a recovery loop . There is a solution to fix that , but try not to get there in the first place.
Here is how to resolve it , if you get stuck in the recovery loop, incase you accepted the Tmobile OTA.
from the TWRP terminal command type
dd if=/dev/zero of=/dev/block/platform/msm_sdcc.1/by-name/fota
then hit enter
dd if=/dev/zero of=/dev/block/platform/msm_sdcc.1/by-name/misc
then hit enter and reboot.
I have now gone back to the Stock ZVD firmware of Sprint , but the Signal Strength (Using GSM and in India) is poor with the stock ZVD rom , it was better with TMOBILE rom V2 that's discussed in this topic, is there any edits / changes I can make to the sprint stock ZVD rom to have the same kind of signal strength as the TMOBILE rom for GSM carriers ?
HTC ONE X (Kal-EL)