Problem:
Tried to connect Mercedes Benz CPC5 ECU with OBDSTAR ECU Master C pack as it appeared. But ECU Master failed to read this ECU.
It gave this message: ECU is locked. Use the corresponding (LOCKED) path to proceed.
Any solution?
Solution:
As the ECU Master indicated, this CPC5 ECU is locked. OBDSTAR could only read and write the “unlocked” version CPC5 ECU on bench mode.
If you encounter a CPC5 that cannot be read or written, it is most likely the factory-locked state (after year 2020). To perform chip-level cloning, tuning, or data repair, you typically need to use tools that support Boot/Glitch mode, or send the ECU to a specialized service provider for unlocking first.
FLEX + Korhex expands support for the latest Mercedes Trucks.
The new update adds support for Mercedes Truck CPC5 units installed on vehicles produced after 2020.
Use: Boot Glitch + Korhex + EMFI
• direct access to the SPC58 microcontroller
• support for recent Mercedes Trucks, including Actros and Arocs
• guided step-by-step procedure through FLEX.
Once unlocked, technicians can use supported tools (such as Magic Motorsport Flex with Korhex) to read, write, and back up the internal Flash and EEPROM.
