Hi all i just got my DSO138 was trying to update the firmware using a coms cable i made up with gnd tx and rx going to pins 2 3 & 5 on dtype connector and using a standard usb-rs232 converter and in the flashing software i get an error message saying unrecognised device please reset device and try again i have power cycled it and checked i had it wired right on swoppong the tx and rx i got a message saying unable to connect and i bridged the jumpers jp1 jp2 and got a white lcd screen is this correct i have ordered the jyetech uart isb adapter will try this when it arrives
Thanks
DSO138 firmware update
Re: DSO138 firmware update
The jyetech uart usb arrived and still same response have attached some photos of the error im seeing and of the the scope screen too