Download Oficial LYF F90m Flash File Stock Firmware ROM with Flash Tool (Qualcomm Mega fone SW Download Tool). also, You Can use this Flash File for Miracle Box.
How To Flash LYF F90m Stock Firmware ROM
Step 1: Download and extract LYF F90m Flash File Stock Firmware on your PC.
Step 2: Install the LYF F90m USB Driver.
Step 3: Download and Open Qualcomm Mega fone SW Download Tool.
Step 4: Click Load XML and browse for rawprogram_unsparse.xml in Stock ROM file.
Step 5: Click SearchPath on Mega fone SW Download Tool.
Step 6: Select the firmware by clicking prog_emmc_firehose_8909_lite.mbn.
Step 7: Press Center Key as Boot key Connect USB LYF F90m Phone.
Step 8: Click Download and wait for the flashing to finish and appear the green screen with done.