You cannot flash "Root" files unless your bootloader is already unlocked (this wipes all data).
If the firmware version (V686) does not exactly match your current build version, flashing this file can "brick" your device (rendering it unusable). Download Root X663 V686 Firmware4Mobile com rar
Rooting and unlocking the bootloader immediately voids most manufacturer warranties. You cannot flash "Root" files unless your bootloader
Likely contains a patched boot.img , vbmeta.img , and the Magisk app or a custom recovery (like TWRP). Likely contains a patched boot
Firmware4Mobile is a third-party repository. It is not an official Infinix or Google source. ⚠️ Safety Assessment Risk Level: High
V686 (refers to a specific build or security patch level).
Instead of downloading pre-made .rar files from the internet, the to root an Infinix X663 Download the Official Stock ROM for your specific build. Extract the boot.img yourself. Patch it using the Magisk App on your phone. Flash the patched file via Fastboot on a PC.