| Error Message | Solution | |---------------|----------| | ERROR: STATUS_DEVICE_CTRL_EXCEPTION | Reinstall drivers, disable antivirus, use USB 2.0 port. | | BROM ERROR: S_BROM_CMD_STARTCMD_FAIL | Unplug battery (if removable), reinsert, retry. | | DRAM FAILED | Wrong firmware version. Double-check model number. | | Tool doesn’t detect device | Try different USB port, cable, or reinstall preloader drivers. | | Windows 10 shows “USB device not recognized” | Disable driver signature enforcement (Step 1) and manually install preloader driver via Device Manager. |

Flashing the official firmware on your BQ smartphone or tablet is the most effective way to resolve severe software issues, boot loops, or to upgrade your operating system manually. The (often powered by the MediaTek Smartphone Flash Tool or BQ's proprietary utility) is the official software required to write clean firmware images directly to your device's flash memory.

Click on any item in the list, then click in the top menu bar and select Add legacy hardware .

The method depends on the file type.

Flashing a device modifies its core system partitions. To prevent bricking your device, ensure you fulfill all the requirements listed below.

Ensure your device is at least 80% charged to prevent power failure during the process.

You need three essential components to successfully flash your BQ device on Windows 10:

Before initiating a flash, ensure you have the following ready to avoid common errors:

Download the official BQ Flash Tool executable file.