Byte Flash

13/07/2026

FLEX Boot Glitch Unlocked MD1CS003: Can AutoTuner or Kess3 read it?

https://youtu.be/O7nPRTMv6WI

Following on from our MD1CS003 Boot Glitch video, we take the ECU w...

10/07/2026

New video: FLEX Boot Glitch on a Bosch MD1CS003, start to finish. If you're looking to unlock the latest Bosch ECUs with FLEX, give this a watch!

https://youtu.be/b77LE9Jxrbw

In this video we take a Bosch MD1CS003 ECU through the full FLEX Bo...

29/06/2026

🚨 Huge news from Magic MotorSport 🚨

FLEX can now unlock a range of Bosch MD1 and MG1 ECUs in Boot Mode. No RFT. No posting your unit away. No waiting days for an unlock that should take minutes.

This is a genuine game changing industry shift! For us the headline ECU has to be Bosch MD1CS003 from Peugeot/Citroen from 2020 onwards!

Boot Mode access on MD1/MG1 removes one of the biggest bottlenecks in the trade for years. Removing that barrier means faster turnaround, less risk to your ECU, and more control in your own workshop.

The initial ECU list is here: https://www.magicmotorsport.com/en/bosch-mdg1-no-rft/

This is just the start. More units are confirmed to be added in future releases. If your ECU isn't on the list yet, it's likely coming!

29/06/2026

ByteFLASH AutoResponder Update. Multi-Select Is Here! Stack multiple modifications into one file instantly.

Watch the demo here 👇

ByteFlash AutoResponder V2 is here, and the biggest upgrade is mult...

24/06/2026

Big release from AutoTuner! The Bosch MD1CS004 and MD1CS104 ECUs are now fully accessible after Mail-In unlock!

This opens the floodgates on a large number of EU6 2.0 TDI platforms across Audi, VW, Seat, Skoda, Cupra and more, including the long awaited VW Transporter T6.1.

Rest assured, we're already hard at work developing our file suite for these ECUs!

Don't have an AutoTuner tool? No problem. Send the ECU to our office, tell us what tuning options you want, and we'll handle the unlock logistics and install your modified file before returning it ready to fit.

24/06/2026

We didn't even make it to the 8am official opening time before seeing a poor quality tuning file. This one's installed on a VW Golf MK7 GTD. Sadly cleaning up this sort of mess is becoming a daily occurrence.

21/06/2026

I think this BMW 116d ECU will become the subject of a YouTube video soon, where we look at poor quality tuning. This particular module is from a car the customer purchased with a blown engine. Looking at the remap installed on there, it's hardly surprising. Now running a safe ByteFLASH Stage1.

20/06/2026

Bentley Continental ECU data recovery for a ByteFLASH installer. Sent to our office after water ingress caused enough corrosion that one of the power feed pins had snapped off the board leaving the car non start, and with no easy clone as the pin is also required to connect up a tuning tool.

We traced the power feed and soldered a manual power feed wire to the old ECU and after a few other small board repairs due to water ingress we where able to retrieve the data and clone the software over to a new module.

17/06/2026

A brand new website for Jsm Diagnostics, courtesy of byteflash.dev, our in-house automotive web development arm.

08/06/2026

Another fantastic update for FLEX. Ford SID212 is now fully supported via OBD. No bench unlock. No removing the ECU. Just plug in and go!

If you've been doing SID211 for years, SID212 now feels exactly the same. And better still, ByteFLASH tuning files and solutions are tried and tested across all SID212 variants.

Log in to the portal to get started: https://portal.byteflash.co.uk/