New Magic Motorsport Flex Bootloader Protocol  Full McLaren TCU & CCU Access

New Magic Motorsport Flex Bootloader Protocol  Full McLaren TCU & CCU Access

As part of our ongoing support for professional tuners and dealer partners, VIEZU is pleased to share the latest Flex software update (v7.25.0.0) from MAGICMOTORSPORT — now enabling Bootloader access for McLaren supercars.

This update allows full read/write control of TCU and CCU units in models such as the McLaren 720S, 620R, and 540C, using the MPC5554 microprocessor, complete with checksum correction.

What This Means for You

VIEZU dealers can now:

  • Access internal Flash memory (with emulated EEPROM)
  • Tune gear-shift logic within the TCU
  • Adjust McLaren CCU settings for hydraulic suspension balance and ride stiffness
  • Complete operations in 1 minute

Supported Packages: This protocol is compatible with the following:

  • FLS0.2M/S – TCU OBD/Bench/Boot
  • FLS0.4M/S – Boot Nexus MPC5xxx
  • FLS0.5M/S – Full Master/Slave

New Protocols Included:

  • McLaren TCU 14M1084CP (read/write/checksum)
  • McLaren CCU 14B0303CP (read/write/checksum)

If you’re a dealer working on McLaren performance, this update adds powerful new capabilities to your toolkit — and helps you deliver greater value to high-end clients with minimal turnaround time.

Contact your VIEZU Account Manager or visit www.viezu.com to get started.

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