foscam r4

Hi, My Foscam has bricked during the upgrade process, and I am trying to connect to it via TTL. I have found 4 unnamed pines that I have assumed that they should be the JTAG port. Does someone have the pinout by chance? Thank you.

I have two new R4 and managed to brick one (BSOD during firmware update). The dud I have a serial USB connector connected and all I see in PuTTY is the boot screen, I can't interrupt it or get any commands to the device. ___ ___ _________ _ / _ \ | \/...