A: Unofficially, yes, but it is complex and risky. Official Mercedes updates are one-way only.
So, what are the benefits of updating to the latest NTG 47 firmware? Here are a few: ntg 47 firmware update updated
If your version is below , you are running outdated firmware. The ultimate "updated" version for most NTG 4.7 units is 11.02.15 or 11.03.00 . A: Unofficially, yes, but it is complex and risky