If you want a Mainboard Upgrade for your banknote sorter GT-31, check out this video.
If you have any questions about the banknote sorting machine or other money counting machines, please contact us for further communication.
1. Shut off power
2. Put the SD card into SD socket
3. Power on the machine
4. “SOFTWARE UPDATE” page will come out, click the up-down arrow and find out .BIN file name, then enter password 1200
5. “Program Update Over” will show out after finish
6. Take out the SD card and re-power on
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