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MagicMotorsport · September 8, 2026

Korhex: direct MCU access for ECU programming with Flex

Korhex: direct MCU access for ECU programming with Flex

A presentation of the tool rather than a vehicle release. Korhex is a hardware extension for the Flex programmer that reaches a contact point on the microcontroller of supported ECUs during unlocking and Boot Glitch procedures, using EMFI. It is not a standalone programmer — Flex drives the whole sequence — and it removes traditional Boot preparation such as desoldering a resistor or wiring Boot pins by hand. Flex Full (FLS0.5M/S) or Flex Boot Glitch (FLS0.20M/S) required.

From the original announcement
« Korhex is a dedicated hardware extension for the Flex ECU and TCU programmer. It works directly within the Flex ecosystem and enables access to a specific contact point on the microcontroller of supported ECUs during advanced access, unlocking and Boot Glitch procedures. Korhex is not a standalone ECU programmer: Flex manages the procedure, guides the operator through each step and handles the subsequent ECU programming operations. »

Shop4Tuner is an official MagicMotorsport reseller. Need the tool, an activation or advice on this update? Contact us, we use it daily in the workshop.

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