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Thread: ms43 software update

  1. 02-08-2021, 12:12 PM #1
    thebut00
    thebut00 is offline Member
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    ms43 software update

    Hi everyone. I wanted to ask how to switch from one software to another of my ms43.
    I want to switch to the latest version (69) of my ECU. if I download the software from MS4X of my engine (m54b22) of the new software version without ews and load it with kess, would it work?
    thanks and waiting for answers ...
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  2. 02-08-2021, 11:36 PM #2
    328 Power 04
    328 Power 04 is offline Is Enabled BMW Tech Expert
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    No, Kess will not do it correctly. It will only do calibration section (data section) and corrupt your flash.
    -Abel

    - E36 328is ~210-220whp: Lots of Mods.
    - 2000 Z3: Many Mods.
    - 2003 VW Jetta TDI Manual 47-50mpg
    - 1999 S52 Estoril M Coupe
    - 2014 328d Wagon, self-tuned, 270hp/430ft-lbs
    - 2019 M2 Competition, self-tuned, 504whp
    - 2016 Mini Cooper S
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