I am a bit late to this thread. I actually have a JBD DP04S007-S (16930001) in a Ohmmu 12V battery. I had a bin file fail to flash and BMS bluetooth onboard was unresponsive.
I ordered the UART Bluetooth module so I can use TeLinkBLEOTA (app) to attempt to recover. Only way I've been able to get a BIN file though was by downloading it from them. Transferring the download on my iPhone to a local folder named 'TelinkBleOTA". My hope is this corrects the onboard bluetooth support but I was also using the XiaoxiangBMS app or BMS Tool app on the App Store to see battery statistics and charge/discharge buttons. I'll follow up after I know if this UART Bluetooth module works.
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