If you are looking for the official stock firmware for the Vivo Y93 PD1818CF/DF, you can download it here. The firmware is useful for fixing software related problems like.
- Boot loop
- Un-rooting your phone
- Update firmware
- Restore to factory defaults
- Fix malware/monkey virus etc
Download Vivo Y93 PD1818CF/DF/GF Stock ROM
Devices uses an MTK chip. Flashing is via AF Tool.