A very specific topic!
The (typically named prog_emmc_firehose_8953_ddr.mbn ) acts as a bridge between your computer and the phone's eMMC storage. A "repack" version is often modified to: download firehose oppo a3s cph1803 repack
: Unbricking devices or removing screen locks when the phone is stuck in a boot loop or locked. How to Use a Firehose File A very specific topic