Hi, similar issue here.
Car has been powered down for a couple of months to do engine work. Upon connecting everything back up the software is saying the ecu is in boot mode, with a prompt to update to latest firmware and won't connect.
I successfully updated the firmware and the software said the ecu was ready to start, however it still won't connect at all.
Any help is much appreciated, cheers.
On Link G4x plug-in S13-14