The image comes from 数码之家 (Shu Mama Zhi Jia) at https://www.mydigit.cn/forum.php?mod=viewthread&tid = 557361
This isn't my version; I have version 1.2, which doesn't include Bluetooth.
I've recently been getting into modifying radios, and I've added Bluetooth to my K5. I also installed GPS in my 1701, and I was planning to remove the Mengtai 5RH Pro and add a Bluetooth module. However, it turned out to be more difficult than I expected. The E2PD2347 chip seems to be an MCU, but rumors suggest that it's actually a CH571R chip from Chin-Heng. It's not working properly after soldering. I think I need to flash the firmware to get it working, but I can't seem to do that.
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