request could not be performed of an I/O device error

Hi all, I’m trying to download to a dongle an update of my sync 3 - from 3.3 to a 3.4. It starts downloading but then i get a message that says request could not be performed of an I/O device error. Can anyone please help at all?


SYNC Region: EU

Navigation Variant: Nav

Manufacturer Year: Pre MY20

Install Type: OEM

Old SYNC Version: 3.3.18201

New SYNC Version: 3.4.19101

Do you have a error message, if so what is it?
request could not be performed of an I/O device error

Update Method: CyanLabs Syn3 Updater

Syn3 Updater Version: 3.3.18201

Syn3 Updater Documentation Read: yes

Syn3 Updater Log File

none

I’ve pressed continue but it keeps saying host disconnected