MSA12 Immo Off problems - Verify Fails after write

How to remove immo and key adaptation
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MSA12 Immo Off problems - Verify Fails after write

Postby Rake7227 » Tue Oct 03, 2023 4:52 pm

Hi all, need a bit of assistance if possible.

Im trying to disable the immo on the MSA 12, the immo data is held on an SOIC8 chip which I removed from the board and inserted into an SOIC8 to DIO8 adapter on the GQ-4x4 programmer.

I add device 93C46, successfully, I can read successfully, I alter the file in hex editor, erase the chip but when I try to wrtie the new or amended file I get write but then verify fails. Being EEPROM I should be able to write multiple times.....Confused.

I have added a pic

Any help gratefully received
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Re: MSA12 Immo Off problems - Verify Fails after write

Postby mihaiti » Mon Oct 23, 2023 6:43 pm

Post your dump here, so we can se it too..

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