Magic Motorsport Korhex for FLEX: The New Boot Glitch ECU Unlocking Solution Professional Tuners Need to Know About
The ECU tuning industry is moving at an extraordinary pace – and Magic Motorsport has just taken another significant step forward.
Meet Korhex.
Designed specifically to work alongside the Magic Motorsport FLEX tuning tool, Korhex is a new hardware solution for direct MCU access, advanced Boot Glitch procedures and the unlocking of supported protected ECUs.
But this isn’t simply another accessory to add to the bench.
For professional tuners, ECU specialists and remapping businesses, Korhex has the potential to make some of the most technically demanding ECU unlocking procedures significantly cleaner, faster and less invasive.
And importantly, VIEZU can supply the complete Korhex and FLEX solution, help you establish exactly what hardware and licences you require, and provide the training and technical support to help you use it properly.
What is Magic Motorsport Korhex?
Korhex is a dedicated hardware extension for the Magic Motorsport FLEX ECU and TCU programming platform.
It has been developed to give FLEX direct access to a designated contact point on the microcontroller – the MCU – during supported advanced ECU unlocking and Boot Glitch procedures.
Traditionally, accessing some protected ECUs can involve considerably more physical preparation of the ECU circuit board. Depending on the procedure, that can mean turning or accessing both sides of the PCB, removing components such as resistors or manually connecting Boot pins.
Every additional physical operation takes time and introduces another opportunity for damage.
With Korhex, Magic Motorsport has developed a different approach.
On supported applications, a dedicated Korhex mask is positioned over the MCU and the system interacts through a specific contact point. FLEX then guides and manages the unlocking procedure. This can eliminate resistor desoldering, manual Boot-pin wiring and board flipping where the relevant FLEX procedure supports Korhex. (Magicmotorsport)
That means less physical intervention on the ECU and a far more integrated workflow.
Why is Korhex such an important development for ECU tuners?
The headline for us is simple:
- More ECU unlocking can potentially stay inside your own workshop.
- Modern ECU security has increasingly created a divide between being able to tune a vehicle and being able to gain access to the ECU in the first place.
Many tuners have experienced the frustration of having the correct vehicle, the correct tuning tool and the ability to write the calibration – only to find that the ECU itself first requires a specialist unlocking procedure.
That can mean sending the ECU away, additional cost, additional handling, increased turnaround time and losing control of part of the customer journey.
Magic Motorsport’s Boot Glitch technology had already begun changing that. Korhex now develops the concept further by simplifying the physical MCU access required for supported procedures.
VIEZU has previously demonstrated the earlier FLEX Boot Glitch process on Bosch MD1, where the procedure could involve opening the ECU, temporarily removing a resistor and carrying out the unlock before reassembly. Korhex is important because it is designed to remove several of those manual preparation stages on supported applications.
For a busy professional tuning workshop, that matters:
- Less preparation.
- Less PCB handling.
- Less soldering.
- Fewer manual connections.
- More control over the job in your own workshop.
How does Korhex work with FLEX?
Korhex is not a replacement for FLEX and it is not a standalone ECU programmer.
Think of Korhex as an advanced access device sitting inside the FLEX ecosystem.
The workflow is essentially:
- Select the supported ECU and procedure within FLEX.
- Open and prepare the ECU as instructed by the FLEX software.
- Fit the correct Korhex mask and position the device on the designated MCU contact point.
- Carry out the supported access or Boot Glitch unlocking procedure.
- Continue into the normal FLEX programming process.
The entire operation remains inside the familiar FLEX environment – the same software, login, workflow, technical support and update system.
For existing FLEX users, that integration is one of Korhex’s biggest advantages.
There is no completely separate programming ecosystem to learn.
What can Magic Motorsport Korhex do?
On currently supported applications, Korhex and FLEX can provide functions including:
- direct MCU access;
- advanced Boot Glitch ECU unlocking;
- Internal Flash reading and writing;
- Internal EEPROM reading and writing;
- full ECU backup;
- Boot unlocking; and
- subsequent programming through FLEX.
Exact capability depends on the ECU, microcontroller and FLEX protocol, so it is important to check the live application list before assuming support for a particular control unit.
And this is particularly important with Korhex because the coverage is developing extremely quickly.
Korhex coverage is already growing
One of the most exciting things about this launch is the speed at which Magic Motorsport is already adding Korhex applications.
Within days, Magic Motorsport announced Korhex support relating to DAF Delphi ETC3 UDS, new-generation SPC58N applications and Mercedes Bosch MD1CP001 Boot Glitch procedures. Magic says Korhex has been designed as an evolving platform, with additional applications and protocols expected through future FLEX updates.
That is potentially just as important as the hardware itself.
When you invest in a professional tuning platform, you are not simply buying what the tool can do today. You are buying into the development programme behind it.
And Magic Motorsport is moving very quickly.
Buy Korhex from VIEZU – with training and support behind it
There is a very important difference between buying a tuning tool and successfully introducing a new tuning capability into your business.
The hardware is only part of it.
VIEZU provides professional Magic Motorsport FLEX training covering OBD, Bench and Boot operation, alongside technical assistance and ongoing tuning support.
With Korhex being such a new technology, that support can be particularly valuable.
Whether you’re an experienced FLEX user or completely new to Magic Motorsport, speak to us about:
- Korhex and FLEX configuration;
- Master vs Slave;
- Boot Glitch licences;
- supported ECU applications;
- FLEX setup;
- Bench and Boot procedures;
- ECU opening and safe handling;
- tuning-file support;
- StageX and tuning software;
- professional ECU tuning training; and
- ongoing technical assistance.
You can purchase Korhex directly through the VIEZU online shop, or contact our team first if you would like us to check your existing FLEX configuration.
Why we think Korhex matters
We have been in the professional tuning industry for more than two decades, and the pace of development during 2026 has been extraordinary.
Korhex is another example of how quickly the barriers around modern ECU access are changing.
This isn’t simply about being able to tune another car.
It’s about workshops gaining greater control over the entire process.
When a previously difficult or outsourced ECU unlock can be carried out safely in-house, the commercial benefits can be considerable: reduced outsourcing, shorter turnaround, fewer transport stages and a better experience for your customer.
Korhex won’t work on every ECU – and Magic Motorsport does not claim that it does. Coverage remains ECU-, MCU- and protocol-specific. But the platform has been explicitly designed to grow as Magic releases new protocols.
That is why we think professional tuners should be paying very close attention.
Magic Motorsport Korhex FAQ
Is Korhex a tuning tool?
Not by itself. Korhex is an advanced MCU-access hardware extension designed specifically for FLEX. FLEX remains the ECU/TCU programming platform and manages the programming process.
Does Korhex replace FLEX?
No. You need FLEX and a suitable FLEX software configuration to use Korhex.
Does Korhex work in Boot Glitch mode?
Yes. Boot Glitch is the principal working mode specified by Magic Motorsport for supported Korhex applications.
Does Korhex eliminate soldering?
On supported Korhex procedures it is designed to avoid resistor desoldering, manual Boot-pin wiring and unnecessary board flipping. Always follow the exact FLEX instructions for the ECU you are working on.
Can Korhex read and write an ECU?
Through the FLEX workflow, supported operations can include Internal Flash and EEPROM read/write, full backup and Boot unlock. Exact functions vary by protocol.
Can I buy Korhex from VIEZU?
Yes. Korhex is available to order through the VIEZU online store, with the current VIEZU listing showing stock due from 30 September 2026.
Can VIEZU help me decide whether I need Korhex?
Absolutely. If you’re unsure whether your existing FLEX licence is compatible, what additional protocols you require, or whether Korhex supports the ECUs you work with, speak to the VIEZU team before ordering.
Ready for the next generation of ECU unlocking?
Korhex is here, FLEX is evolving rapidly, and increasingly sophisticated ECU access is moving back into the professional tuning workshop.
If you already use FLEX, now is the time to understand what Korhex could add to your business.
If you’re new to FLEX, talk to us before you buy and we’ll help you understand the hardware, licences, applications and training you actually need.
Buy online, speak to our technical team, or arrange a consultation with VIEZU.
Because the best tuning tool isn’t simply the one you own.
It’s the one you know how to use.
