We do not host files directly due to copyright and version control, but here are the four most reliable sources to obtain the correct firmware.
If you're looking for the firmware update referred to as "17mb130s," here are some steps you can take: 17mb130s firmware link
On the 17MB130S board, locate the 4-pin header labeled J1, ISP, or PROG. The pins are: We do not host files directly due to
Critical: Do not connect VCC if the board is already powered via the main power jack. Use only GND, TX, and RX. Critical: Do not connect VCC if the board