I just bought a 3 axis gimbal from ebay and the auction stated that an "3 Axis AlexMos v2.4 Contorller" was included. When looking closer to the board, It looks like the "BaseCam SimpleBGC 32-bit", but I do not have connections for A1-A3, BTN and AUX1-3...
On the PCB its says: SBGCv4.5 basecamelectronics Gimbal_MCU_8313_RevB
It has a P1 and P3 - Maybe that's the connection for A1-A3, BTN or AUX1-3?
Also, I've downloaded "SimpleBGC_GUI_2_50b3" and when running this I get the following message: Error message 1: Something goes wrong when reading parameters: -Unexpected error: java.io.IOExpection: Limit reached!
Error message 2: GUI vs board version mismatch. Firmware version: 2.3 b5, GUI version 2.50 b3. You should run matching GUI version, or upgrade firmware.
Any help is received with a big "thank you"! No help from the seller at ebay :-(
If your board is 32 bit, you absolutely should upgrade the FW, assuming your board is legitimate. Identifying that, I can not help, but if it is Ebay, 2.3 FW, 32 bit, new and price was much less than normal, there is a big change it is not. Hopefully someone can help you identifying what boar you have, my advise would be to avoid seller that do not provide support for the products they sell.
I have the same board but has a broken transformer would really like to replace since it has built in wifi/Bluetooth where did you buy yourself mine came with a gifted dys kit