Wondom/Sure BDM8 TPA3255

Hey guys I just received a wondom bdm8 amplifier I ordered from their store on AliExpress. Just like all the Chinese boards there is little to no documentation on them so I was wondering if anyone here has one and if they can share their experiences with it? My initial impressions are that it sounds very good and seems to have plenty of power using an adjustable SMPS at 36v 10a but can go to 50v. I haven't tried anything over 36v yet but I will. Theres alot of connections on the board that aren't explained at all and was hoping that I can figure out what they are.
 
I saw that but it's not very specific. It doesn't say anything about the connector next to the switch that turns BT off and on. I found out that is for programming via a USB cable and a program I've never heard of. I thought I remembered reading a post a long time ago where someone was able to hook it up to the PC and use ACP work bench with it but I'm not sure. There's also some unused pads on the board that look like they may be for a power switch and LEDs. Dayton used to sell a variation of this board that had those things.