Easiest way to prevent rollback would be to disable the OTA engine and change the URL it points to. This can be done by editing the configuration file at /data/configs/mobileap_cfg.xml and do changes similar to what I have documented at
Easiest way to prevent rollback would be to disable the OTA engine and change the URL it points to. This can be done by editing the configuration file at /data/configs/mobileap_cfg.xml and do changes similar to what I have documented at