Jieli Br21 Driver Exclusive ((better)) -
: The Jieli USB Dongle 4.0 Update Tool allows for firmware upgrades, baud rate setting, and DIP switch configuration for specific modes like single-wire serial port upgrades.
: The Jieli USB Dongle 4.0 Update Tool allows for firmware upgrades, baud rate setting, and DIP switch configuration for specific modes like single-wire serial port upgrades.