NefMoto > Technical > Cluster and Immobilizer (Moderator: ddillenger) > IMMO OFF on MSA 15.5-7.2
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Author Topic: IMMO OFF on MSA 15.5-7.2  (Read 3274 times)
Gizmo06
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« Reply #15 on: August 22, 2025, 01:47:16 PM »
Have you checked continuity from the pin through the adapter into the programmer?
Yes I have done it with both adapters, and it's OK


edit: i just looked at tl866-3g which is shown in your software screenshot and i think you are working on the wrong side of the programmer!

OMG!  I'm embarrassed !!
I've been looking for what's wrong for a long time.
I've posted on several forums, but no one has seen this error!!
I'm glad you looked at this image.
Thank you very much 
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Gizmo06
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« Reply #16 on: August 26, 2025, 04:55:13 AM »
Hello everyone,
I just received my T48 and I managed to read the 24C02 chip (thank you aef).
Is it possible to modify the dump with Xgpro v12.96?
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aef
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« Reply #17 on: August 27, 2025, 01:15:18 AM »
what do you mean by you received the t48?

thought you already had it.

check out my picture from the previous post with the changed 60 directly in the minipro software.
you can use the software or some other hexeditor

"This method are usually called 60 trick.
You need to find in hex all 33,F3 and 73 values and replace them to 60 in hex"
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Gizmo06
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« Reply #18 on: August 27, 2025, 03:50:18 AM »
Quote from: aef on August 27, 2025, 01:15:18 AM
what do you mean by you received the t48?

thought you already had it.

I sent a message to the seller with a screenshot when I did a self-test, he told me that there was a problem with the result.
So I sent my box back and got another one.

Someone made me an IMMO OFF, but I don't understand because the replaced values ​​are 00, 24, 33 and 67 which does not match anything I read elsewhere. The IMMO OFF was done with a program.
Is this immo off well done?


I don't want to stupidly write this dump, I want to understand what I'm doing and why, hence my questions.

Once I've written the dump to the chip and reinstalled the ECU in the car, do I need to disconnect the IMMO box, and cut wire 59(on ECU ?) ?
I read that I need to connect the KLine and WLine wires?
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aef
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« Reply #19 on: August 27, 2025, 04:46:03 AM »
would start with the 33 to 60 method, nothing more.
you can write the chip several times and you can check the immo status with vcds on the bench

there is no clear, explainable and understandable solution. on me7.5 its 2 values + checksum. on msa15 its the sledgehammer approach...

https://de.scribd.com/document/461060585/Bosch-MSA15-immo-removal-Chiptuning


its correct, you have to uninstall the immo box and connect W to K to get communication via obd2 slot back to working
« Last Edit: August 27, 2025, 05:21:41 AM by aef » Logged
Gizmo06
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« Reply #20 on: August 27, 2025, 05:11:29 AM »
Thank you very much aef for your help 
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_nameless
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« Reply #21 on: August 28, 2025, 10:51:27 AM »
 Wink
« Last Edit: August 28, 2025, 10:54:00 AM by _nameless » Logged
If you are broke or expecting free handouts DO NOT message me. I'll probably put you on blast if you do.
Gizmo06
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« Reply #22 on: Yesterday at 10:40:21 PM »
Hello,

The last time my son came home (August 20th), I took apart the IMMO box, re-soldered the connector, checked all the wires and the coil, and put everything back together.
Since then, he hasn't had any more problems with his IMMO.

I haven't seen him since I reprogrammed the chip, but I don't think I'll replace it since it works...
What do you think about?
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