This is a great tool, but I have just always used windows calculator and the fact the checksum for each line is just FFFF - 1 for each line down from row 2. Ie to calculate the check sum in row 1X just add the totals bar the last 2 ,subtract from FFFF to give the checksum value for these last 2 values lo/hi.
In the case of Immo removal where you change the bits from 01 to 02 you just need to subtract 1 from the checksum value.
But if you struggle with that this looks a good tool. Thumbs up
I wrote this for people who want to retain their immo functionality and be able to use third party ECUs. One could just copy EEPROM content from one ecu to another, granted, but what if somebody has a dead ECU and they need used ECU which will have different immo data on it or none at all?
I am such a case. My original ECU died a long time ago right after I moved to m-box tune on my allroad. I am without a valid EEPROM for my key/cluster combo. Only way to go back to original allroad programming is to hijack another ECU, flash allroad tune, read off EEPROM and copy/paste immo ID into EEPROM file. Then just run this program and it will output valid EEPROM file which one can immediately flash back without doing a lot of manual math jugling.
Limited clientele, I know, but I am sure it will be a life saver for some.
