3 min read
Source: Magic MotorSport (via CardiagTool) — October 14, 2026
Magic MotorSport has released FLEX software version 8.25.0.0, adding a KORHEX boot glitch procedure for the Bosch MG1CP007 and MG1CS047 engine control units fitted to the Porsche 911 992.1 lineup. For the first time, tuners can unlock these TC299-based ECUs without removing components from the board, then carry on reading and writing in BENCH mode.
What FLEX 8.25.0.0 Adds for Porsche ECU Tuning
The 8.25.0.0 release expands Magic MotorSport's unlocking coverage to two specific Porsche engine control units: the Bosch MG1CP007 and MG1CS047, both built around TC299 microcontrollers. These ECUs were already supported through Voltage Fault Injection (VFI), but the new FLEX protocol lets technicians switch to KORHEX for the same job.
With KORHEX, the TC299 processor is accessed through a boot glitch — a timing-based fault injection that pushes the microcontroller into a state where its internal flash and EEPROM can be read directly. The key difference from older methods is that no components need to be lifted or desoldered from the ECU during preparation, which shortens bench time and reduces the risk of damaging the board.
After the boot glitch unlock completes, the technician continues the actual programming work in BENCH mode using FLEX. Supported operations include ECU unlock, internal flash read/write with checksum, internal EEPROM read/write, and a full ECU backup. Magic MotorSport lists approximate timings of 30 seconds to connect, 2 minutes 30 seconds to read, and 2 minutes to write, though real-world times vary by ECU and setup.
Why the KORHEX Boot Glitch Matters for Independent Tuners
Porsche's 992-generation 911 has been a locked door for most independent tuners. The Bosch MG1 family on these cars protects its internal memory, so the only reliable routes into the ECU were invasive — opening the case, lifting pins, or applying fault injection with careful component preparation. Each of those adds hours of labor and real risk to a job that should be a straightforward flash.
A cleaner boot glitch changes the economics of the work. Shops that already own a chip tuning setup can add the KORHEX hardware and the matching license, then unlock and program the same ECUs without touching the board. That means fewer damaged control units, faster turnaround, and the ability to offer Porsche 992.1 tuning as a normal service rather than a specialist bench job.
From Voltage Fault Injection to a Cleaner Boot Glitch
VFI remains a valid technique, but it requires precise voltage control and often component-level preparation. The boot glitch approach trades that for a timing-based trigger — the glitch is timed to a specific point in the processor's boot sequence, so the ECU is left intact and can be returned to service normally after programming. For a working ECU programming workflow, that is a meaningful reliability upgrade.
Supported ECUs and Porsche 911 992.1 Applications
Magic MotorSport lists four 992.1 applications in the initial coverage, all from the 2021 model year:
- Porsche 911 Carrera 992.1 — 3.0L boxer twin-turbo, 380 hp
- Porsche 911 Carrera S 992.1 — 3.0L boxer twin-turbo, 444 hp
- Porsche 911 GT3 992.1 — 4.0L boxer, 503 hp
- Porsche 911 Turbo 992.1 — 3.7L boxer twin-turbo, 572 hp
The two ECUs covered are the MG1CP007 and MG1CS047, both using TC299 processors. As always, the manufacturer advises checking the official FLEX vehicle list before starting work, because the exact ECU fitted can vary by market, transmission, and build date.
What You Need Before You Start
The new procedure is gated behind a license. You need either the FLS0.20 Boot Glitch license or the FLEX Full FLS0.5 configuration, plus the KORHEX hardware and a current FLEX installation updated to 8.25.0.0. If you are running an older setup, the first step is a software update to bring the tool to the latest version.
Once updated, the workflow is straightforward: confirm the ECU is in the supported list, run the KORHEX boot glitch to unlock it, then move to BENCH mode for the actual read, write, checksum, and backup. Keeping a full backup before writing is good practice on any Porsche job, given the cost of a replacement control unit.
Should Your Shop Update?
If Porsche 992.1 work is already on your bench — or you are turning it away — the 8.25.0.0 update plus KORHEX is worth serious consideration. It converts a high-risk, invasive job into a repeatable bench procedure, which is exactly what independent shops need to compete on late-model performance cars. For tuners who already run FLEX with a boot glitch license, this is a no-cost coverage expansion worth installing immediately.
For everyone else, the decision comes down to demand. A diagnostic tool investment only pays off when the jobs exist. If 992.1 Porsches are a growing share of your intake, this is one of the cleaner paths into that market right now.
Written by Roberto Vargas, Key Programming & ECU Specialist at vxdas.com
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