Hyundai elantra (and other kia\hyundai) mb91 algo(string checksum)

[druzhinin234]

hi everyone
2017 hyundai elantra,mb91f067 fujitsu mcu,read by vvdi-prog.(ori milage 35201 km,try to make 118 750)
try to manually adjust milage,i found many of milage repeats,understand how to change,but stuck on "string checksum"
for example
00 01 06 A7 00 00 00 02 AA AA AA AA 11 00 11 00
00 00 06 A6 00 00 00 02 AA AA AA AA 11 00 11 00
00 02 07 63 00 03 51 69 AA AA AA AA 11 00 11 00
00 04 07 64 00 03 51 68 AA AA AA AA 11 00 11 00
00 03 06 FC 00 03 52 00 AA AA AA AA 11 00 11 00
00 02 06 FC 00 03 52 01 AA AA AA AA FF FF FF FF

"checksum" is highlighted in bold and underlined

if i understand correctly,the last 8(or maybe more) characters are not used for the checksum calculation. i try different variations of calculation but no luck. can someone kick me in the right place or give some hint
thank you in advance

[clusters]

Your first post should be here............

https://www.digital-kaos.co.uk/forum...isplay.php?f=2

[druzhinin234]

sorry, now I've done it.

Отправлено с моего 2211133G через Tapatalk

[clusters]

.......................

[hoangtu]

00 00 06 A6 00 00 00 02
06 A6 = 06 A4 + 02
06 A4 ORG CS

00 02 07 63 00 03 51 69
07 63 = 06 A4 + 02 + 03 + 51 + 69
00 04 07 64 00 03 51 68
07 64 = 06 A4 + 04 + 03 + 51 + 68

[druzhinin234]

now i understand, thanks for explain!!