The previous owner had a Build Journal tune in the MSS54 DME. However, I want to reflash back to OEM tune as the car engine and exhaust is stock now.
When I update DME through comfort mode, the update took 2 seconds from 0-100% without any error (Prompted successful & counter is -1). I've read other youtube video that the process would normally take 20-25 min. I am sure it did not overwrite the tune at all. The cable should not be the problem as I've used it to erase code, delete adapation, and read parameters thru INPA
So how do I know if my tune is altered or not? (compare checksum?), and what other method I can reflash it to stock tune?
Here's some info of my DME
When I update DME through comfort mode, the update took 2 seconds from 0-100% without any error (Prompted successful & counter is -1). I've read other youtube video that the process would normally take 20-25 min. I am sure it did not overwrite the tune at all. The cable should not be the problem as I've used it to erase code, delete adapation, and read parameters thru INPA
So how do I know if my tune is altered or not? (compare checksum?), and what other method I can reflash it to stock tune?
Here's some info of my DME
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