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If you plug a Jieli-based speaker into a computer while holding down a specific key combination, it enters "force upgrade" mode. The bootloader listens to the USB or UART interface, allowing software tools to rewrite the SPI flash memory. 3. Verification and Security

Before assuming your device is broken and throwing it away, try the simple solutions listed above. Start with the hardware reset button, then move to the battery pull if comfortable, and finally, try cleaning the Windows driver. If these steps succeed, you've learned something new about your device and can get back to gaming. If not, you now understand the root cause and can make an informed decision about whether to attempt a firmware re-flash or replace the device. br23uboot1.00

[Start Menu] ➔ [Device Manager] ➔ [Universal Serial Bus Controllers] ➔ Uninstall "USB Mass Storage Device" If you plug a Jieli-based speaker into a