After unlock, fastboot displays Device unlocked = true .
No official TWRP exists. Use a based on the same SoC (MSM8917) and resolution (720x1280). vivo 1610 custom rom work
: Once finished, reboot the system. The first boot may take several minutes. Popular ROM Options While official support for the has ended, community-driven projects often provide: After unlock, fastboot displays Device unlocked = true
| Error | Cause | Solution | |--------|-------|----------| | FAILED (remote: unknown command) | Fastboot disabled | Flash engineering bootloader | | Device stuck in EDL mode | Corrupted boot partition | Reflash stock firmware via QFIL | | TWRP cannot mount /data | Encryption | Format data (not wipe) in TWRP | | No IMEI / No service | Unlock erased /persist | Restore QCN backup using QPST | | Bootloop after GApps | System partition too small | Use pico GApps or resize system | : Once finished, reboot the system