RomRaider

Subject: SH Boot mode questions




Your file opened sucessfully but bricked your ecu since it was an incomplete image or corrupted? There should be an integrity check for the .hex or bin in Ecuflash and romraider to prevent this. I too recovered my hard drive recently using low level recovery method. I got all of my .hex files. Is there a way to check if these files are still safe to use? I opened them in ecuflash with no problem. However basing it on your experience, ecuflash does not check integrity of the image file

In a stock ROM there is a checksum, it's the CVN if I'm not mistaken. I don't think RR Editor uses this value and I know when you write a modified ROM it sets it to zero's. Now I see in the most recent EcuFlash it remarks about 'all checksum features turn off'.

I did a test. I corrupted a stock ROM and opened it with EcuFlash and it did in fact tell me the checksum did not match.
I also modified a stock ROM with EcuFlash and it calculated a new checksum for the ROM.

So bottom line. If the ROM has never had the checksum disabled then EcuFlash will warn you of a corrupt ROM. But if ever you edited the ROM with RomRaider the checksum will be disabled and EcuFlash will not warn you of a corruption.

So I should add a feature fix to RR to handle checksums correctly for both reading in the ROM and writing it out after updates are made.

I did find the routine in the ROM that does the checksum verification, so it's just a matter of getting RR to do the same.

I flash with ecuflash and edit 99% in Romraider. So all of my hex files now coming from a low level recovery are suspect to be corrupted. I rather assume that or risk bricking. Is having the checksum work in RR big work or something that can just be activated?

Regards

I guess I'm not really 100% sure what happened. My laptop had an accident and I dragged the desktop out to the garage to flash, with all the confusion, I think I may have forgotten to put the .hex at the end of the file name when using the "Save As" in RomRaider, however EcuFlash still opened it like a normal .hex file. Luckily, I had a recent revision in my PM Sent folder on here that I was able to work with.

SH Boot Mode is as easy as Colby makes it out to be, I just didn't have enough common sense at first. Luckily for me, there's this great forum with great people willing to help. If I can figure it out, anyone can.

I wonder if a SHBoot mode How-to thread would be a good idea?



I was wondering about that message, it did look new/different, it even names RR with some question marks.

Found this thread as I am working on rebooting my bricked ECU. It keeps saying that is writing 128 bytes to xxxxxxxxx and is scrolling thru the log, staying updated, but moving incredibly slow, and the % bar does not seem to change. Can anyone comment on this? I'm assuming it is working, but it would be nice to have feedback from the % bar.

That happened to me during the first attempt.

You have to connect P413 to the ground side of one of the capacitors like in 2nd picture of the following link:

http://forums.nasioc.com/forums/showthr ... ?t=2200443

I used an ohm meter to determine the ground side of the capacitor. It is the one that connects to the PCB's ground.

It goes very quickly from there.