The .rar file you are looking for usually contains the update.app file. : Use a tool like WinRAR or 7-Zip.

For "dead" devices that won't turn on or enter recovery, technicians use the method to force the device into COM/VCOM mode for flashing via PC tools like EFT Pro or MRT Dongle. ⚠️ Important Safety Warning

: Prepare a high-speed memory card or USB OTG drive for the dload method. 📥 Download & Structure

If the phone is stuck in a boot loop, you can use the built-in recovery: Connect the phone to a charger. Hold until the Honor/Huawei logo appears.

This is the standard way to install official stock firmware. Power off the phone.