someone please help checksum my tune

by **heavenh** » Thu Dec 31, 2020 6:57 am

Hi guys,

new to the scene.

i have a golf gti mk5, i am using mpps and i can ecu id my car, read but it says to checksum first before writing and there is no option to checksum.

i have downloaded the trail version of winOLS but cannot check sum my files, it cannot reach the server to check files.

can you guys please help or recommend any program i can use to checksum or if its possible via mpps, then how do i do it?

- Do i need to checksum the Original file and the mod file before i can write to the ECU via MPPS?

thank you in advance.

cheers,
Edward

by **heavenh** » Thu Dec 31, 2020 8:41 am

I have attached the original read and can upload the mod file to.

Cheers
Edward

by **dcperf** » Thu Dec 31, 2020 11:33 am

Here you have chk,
if i remember correctly mpps does chk automatically on this med9 ecu.
Regards,
dcperf

by **heavenh** » Fri Jan 01, 2021 4:33 am

thank you so much for that!

yeah thats what i've read. i just dont have the option on my screen.

I can see :

ECU ID
Read
Write

EXIT

then a warning saying, no checksum, you need to checksum first before writing.

are you able to please checksum the modded one for me to if thats ok? thank you very much and happy new year!

i've pmed you the pw for this one.

cheers,
edward

by **Lambda1** » Sat Jan 02, 2021 2:13 pm

chks in this file is ok... but running a file from eBay CD-Database... iam not sure if I would do this :lol:

by **heavenh** » Tue Jan 05, 2021 8:42 am

Hey everyone,

so i tried to write the file and it failed at 80% saying cannot write to specified address.

now i have no sw on my ecu. any help to get this fixed? i tried writing back the original read but it also fails on the same block at the same 80%. :( please any advice will be greatly appreciated!

thank you

i dont think ill ever do this again after this until i know more!

by **Lambda1** » Tue Jan 05, 2021 12:08 pm

Worst case.
NO Knowledge, fake tool, bin file from anywhere and for sure no extra good power supply! :clap:

So enough.
If you do ID what is shown? Screenshot?
VCDS able to reach ecu?
Easiest way. You need someone with a bdm tool to fix.
Better this guy got more knowledge about how to use. Let him open ecu and read flash and do the work of "repair".

by **tizz** » Fri Jan 08, 2021 10:12 am

Med9.5.10 + MPPS = Problem
Voltage 13,5v or higher during programming is essential.

2 options now -> BDM recovery or second hand ECU with immo off

PS> ebay DataBase files are not best quality. Believe me, tuners have to eat as well, support them :thumbup: