These are text files that guide the flashing tool on where to write specific parts of the firmware (like the system, boot, and recovery partitions) on the device's memory.
(CPH1823/CPH1825). These files are often "hot" or popular in repair communities for resolving critical software issues like , forgotten screen locks , or "dead boot" scenarios. Core File Components for Oppo F9 oppo f9 oppo custom file hot