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S40 ECU never updates map on the first 5 attempts

Posted: Sat May 26, 2018 8:58 am
by roosie
My S40 which i connect via RS232 lead if i try update the map or save changes etc, it just fails and i have to keep retrying and on the 5th attempts always works.

any reason why this is?

Re: S40 ECU never updates map on the first 5 attempts

Posted: Sat May 26, 2018 4:17 pm
by Alex DTA
Most likely the incorrect USB driver.
http://www.dtafast.co.uk/download_files ... Update.pdf