Choose the flashing mode. Download Only is recommended for standard updates. Firmware Upgrade is used if the partition layout has changed. Avoid using Format All + Download as it may erase your IMEI and NVRAM data.
Back up your data: Flashing firmware will erase all personal files, photos, and contacts.Charge your device: Maintain at least 50 percent battery life.Use a high-quality cable: Original USB cables provide the most stable data transfer.Disable Driver Signature Enforcement: Windows 10 often blocks unsigned MTK drivers. You may need to disable this feature in the Advanced Startup menu to install the necessary drivers. Installing Drivers and Software bq firmware flash tool windows 10
Are you seeing a (e.g., BROM Error) in the tool? Do you have the official firmware file already? Choose the flashing mode
Download the BQ Flash Tool and the specific firmware package for your model from the official support site. Avoid using Format All + Download as it