September 24, 2026

Flex Supports BMW MD1CS003 Bench Unlocking No ECU Opening

WithMagic Motorsport Flexthe BMW Bosch MG1CS003, equipped with the SPC5777M processor, can now be programmed directly in Bench mode.

  • No ECU opening.
  • No Boot Glitch unlock.
  • No extra steps.

Flex version 8.21.0.0 is now available

The latest Flex update expands support for BMW Group vehicles with the introduction of Bench programming for theBosch MG1CS003ECU.

Equipped with an SPC5777M processor, the Bosch MG1CS003 control unit can now be programmed directly in Bench mode, no need to open the ECU or perform the unlock procedure via Boot Glitch.

This new Flex solution simplifies the ECU programming workflow: fewer steps, no ECU opening, and a faster, safer procedure.

Key insights:
BMW Bosch MG1CS003 – SPC5777M

  • WorkingMode: Bench
  • Memories: Read/Write/Checksum Internal Flash, Read/Write Internal EEPROM, Full Backup
  • License: FLS0.1M/S – FLS0.5M/S
  • Connection: ~10 seconds
  • Reading Time: ~2 minutes 30 seconds
  • Writing Time: ~2 minutes

Some of the supported vehicles:

  • BMW X3 (III) G01 (2021MY) 2.0L 20i 16V 181HP
  • BMW 5-Series (VII) G30/G31 (2021MY) 2.0L 30e 16v PHEV 288HP
  • BMW7-Series (VI) G11/G12 (2021MY) 4.4L V8 50i 32v 523HP
  • BMW 8-Series (I) G14/G15/G16 (2021MY) 3.0L 40i 24v 328HP
  • BMW Z4 (III) G29 (2021MY) 2.0L 30i 16v 254HP
flex update bmw md1cs003 bench unlock


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