Jio users in India were furious. According to the forum thread "VoLTE not working after Nougat" (200+ posts), the update frequently reset modem partitions. The fix involved re-flashing the specific persist partition via recovery—a process too risky for average users, but perfectly documented on XDA.
*Developer: Karthick Mostwanted Status: Beta (Stable for daily use, as of Sept 2021 archive) oppo f3 plus nougat update forum xda
But if you are searching XDA, you likely didn't get the OTA, or you are experiencing bugs. Let's dive into the forum threads. Jio users in India were furious
: For those willing to bypass the official route, the process typically required rooting the device , unlocking the bootloader, and flashing the ROM via a custom recovery like TWRP . you likely didn't get the OTA