EM12-G 140 pin USB BOOT

Hello everyone =) There was a need to fill in the firmware with pin closure number 140 and 168. The instructions have pin positions, but how do I find out which pins are on the board?
I will be glad to help =)

Please refer to the above figure:

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Thanks for the answer, the port for downloading the firmware opens, but the module is also in emergency mode, the firmware is installed Qflah, but the modem does not start. I tried firmware from 17 to 21, there are no firmware errors