NefMoto > Noob Zone > Noob Questions (Moderator: turboat) > Flashing MED9.1 back to stock
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Author Topic: Flashing MED9.1 back to stock  (Read 981 times)
Norwegian1.8T
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« on: October 16, 2024, 11:50:30 AM »
So probably a stupid question but since there is a risk of me bricking the ECU im asking anyways.

Bought a shitty MK6 GTI Edition 35 with a really really really bad tune, so want it back to stock.
ECU is 5K0 907 115 K 0010 ( i have no idea what the 0100 is, im used to ME7.5 and those dont have that).

My question is:
Will flashing a full ORI file with MPPS or Kess V2 write immo data aswell? I think that immo data live in bootrom and flashing with OBD does not write this?
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Dande
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« Reply #1 on: October 16, 2024, 12:04:24 PM »
Dont worry about immo if you dont write eeprom (its not possible via obd). The best way to flash to stock is sgo.
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Norwegian1.8T
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« Reply #2 on: October 16, 2024, 12:32:47 PM »
I dont have .SGO, i only have this .ORI (bin).
Uploaded it if anyone else need it.
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Blazius
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« Reply #3 on: October 16, 2024, 01:35:13 PM »
ODIS ? Best way

Here is sgo.
« Last Edit: October 16, 2024, 01:36:57 PM by Blazius » Logged
Norwegian1.8T
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« Reply #4 on: October 17, 2024, 01:55:28 AM »
I dont have ODIS sadly Sad

If writing with MPPS should work i will try that.

Also, should i read the flash first? Heard some stories that it might f something up if it had read protection on it.
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Norwegian1.8T
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« Reply #5 on: October 17, 2024, 08:40:27 AM »
Tried writing with MPPS, and at first it loosed like it was going fine.
MPPS wrote to 100% and told me programming successful.

Started the car and it still has the same shitty tune on it, read the flash with MPPS and i get an file that says its encrypted, so apparently didnt write. Tried writing a couple more times just for fun but nope.

Will writing with ODIS work? Or do i have to go BDM?
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aef
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« Reply #6 on: October 18, 2024, 02:41:07 AM »
Visit the vag dealer and let them flash with odis. Its the easiest solution in your case.

If you dont want to dig deeper into tuning in the future why buy other unneccessary bmd clone tools.

There is always a risk of damaging the ecu during opening and bdm'ing it.



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cherry
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« Reply #7 on: October 18, 2024, 03:39:45 AM »
Dealer cannot flash sgo with same version again, only higher versions which does not exist. The only problem here are bad clone tools. You maybe need to ask someone.
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Dande
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« Reply #8 on: October 18, 2024, 11:21:43 AM »
You can use also vcp for sgo or just flash ori file. dont need bdm
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Norwegian1.8T
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« Reply #9 on: November 03, 2024, 01:11:14 AM »
Short update and some more help needed.
I’ve got my hands on ODIS, and tried to flash SGO back to stock. Get an error saying it can’t delete the flash sectors and the car wouldn’t start. Great. Tried flashing with MPPS again and the car started somehow.
Does my MED9.1 have OBD write protection?? Is that possible?
Anyways, next step I assume will be BDM.
Also, if anyone have a known good ORI of 5k0 907 115 k 0010, don’t hesitate to share it Wink
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_nameless
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« Reply #10 on: November 03, 2024, 09:25:08 AM »
You can use virtually any eeprom and flash when it comes to the med9.1 4 cylinder stuff. I think the only one that has a different eeprom is the axx. Find a complete flash and eeprom really any, BDM flash the ecu with the matching flash and eeprom, then port flash the file appropriate for the car Change the soft coding with vcds to match the car and you are off to the races. You can adapt the immo or switch off the immo. Nothing really anything to it, just need to have a tool that can port flash and boot flash. Alternatively you can patch code portion from  6C00-6FFF
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Giving your mom a tuneup
Norwegian1.8T
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« Reply #11 on: November 03, 2024, 09:32:58 AM »
I have just ordered KTAG which should be able to BDM these.
Will do a full backup first (so that i have the immo data). And then try to flash just the maps to the ECU and see what happens.
I will keep you posted
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