Lumeneau

Hi I went to upgrade the firmware of an i-zues HD 16 DVR but messed it up and now the DVR doesnt boot. The supplier doesnt want much to do with this as they said it has voided the warranty. Would anybody happen to have the full firmware and the instructions on how to flash the firmware onto the motherboard using the rs232 port? Or Would anybody know if I could purchase a new motherboard either from the UK or abroad? Many thanks