: It is used with the Xiaomi MiWiFi Repair Tool to restore routers that have been "bricked" or have corrupted software.

: Allow the tool to upload the firmware; the router will reboot automatically once the process is complete. Confirm success installing Mi Router 4A 100M (R4AC) #92

: Run the MiWiFi Repair Tool and select the .bin file extracted from your .rar .