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KFZ
26th March, 2016, 11:40 AM
Hi all
Its realy easy to upgrade or flash update the VAG ecu for example ( 03L 906 023 LP) when the old software be 9645 and need to update the flash to 9972 ....
but my question is , Can I dowgrade the software from 9972 to 9645?
is that possible ?
Thanks

blade66
26th March, 2016, 07:10 PM
Yes you can

KFZ
26th March, 2016, 10:20 PM
How should it be ? the same like update flash ?

KFZ
26th March, 2016, 10:33 PM
How should it be ? the same like update flash ?

melkon
27th March, 2016, 10:15 PM
With ODIS-E loaded back to 9645. Nothing complicated.