I apologize in advance for this long explanation I am a newbie when it comes to programming.....First let me explain what it is that I am trying to accomplish.... I work for a car dealership and we import vehicles from Canada into the USA... We are responsible for converting the vehicle instrument clusters from Metric to USA Imperial...one of the ways to do this is to swap out the cluster with an American cluster obtained from a salvage yard and to reprogram that salvaged cluster with the correct miles to match the original miles on the car.. i have been able to read and write to the eeprom chips using Xeltek IS01 programmer...when looking at the code on the chips and while knowing current miles stored on the chip, I can take the known miles and convert them to hex and then look for that hex code in the chip and that way i know what piece of code to adjust... but i ran into one that i cant seem to figure out...typically I take the known miles in denary form and convert them into binary and then take the binary and convert it to hex which allows me to search the code for that piece of hex and then i know what piece of code to correct...the one im having a problem with does not seem to work with that process, like im missing a piece of the conversion formula...so i sent out the bin dump file to an outside company who converted the code for me at a cost of $35...So now i have the before and after bin files... I have compared the two and i find the changed code in line 000000A5...that line of code was corrected but i cant seem to decipher how they took the known miles on the chip and converted them to hex in order to find the right piece of code.... if i attach the bin files both before and after maybe you can tell me the formula used....the FIRST bin file is called "2007 jeep compass american" and the SECOND bin file that was corrected is called " 2007 modded jeep compass american "...the miles on the first bin file is 208420 miles possibly stored as kilometers 335419 and it is stored in line 000000A5 and the piece of original code that was changed is " E0 1F 69 13 7A 0D" ... the 2nd bin file( the corrected one ) has corrected miles of 79036 likely stored in kilometers 127196 on line 000000A5 and the new hex code is DB 65 5C 07 1A 01.....I have tried every conversion i can think of from hex to binary to decimal and more but i cant decipher that piece of hex.
I have both bin files for you to look at and maybe you can tell me how they took the known miles of 208420 and converted those miles to hex, then having identified that piece of hex as ( E0 1F 69 13 7A 0D ) therefore allowing them to replace it within the file with the corrected hex of ( DB 65 5C 07 1A 01 ) which represents the corrected miles of 79036.....for some reason this forum wont allow me to attach BIN files ...says wrong format...but i am a newbie so im sure im making a mistake on that as well....I can send anyone interested the BIN files to examine..I am willing to pay for the tech support...my email is <SNIP>
Moderators note: removed email to avoid spam
I have both bin files for you to look at and maybe you can tell me how they took the known miles of 208420 and converted those miles to hex, then having identified that piece of hex as ( E0 1F 69 13 7A 0D ) therefore allowing them to replace it within the file with the corrected hex of ( DB 65 5C 07 1A 01 ) which represents the corrected miles of 79036.....for some reason this forum wont allow me to attach BIN files ...says wrong format...but i am a newbie so im sure im making a mistake on that as well....I can send anyone interested the BIN files to examine..I am willing to pay for the tech support...my email is <SNIP>
Moderators note: removed email to avoid spam
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