How to Unlock PSA MD1CS003 ECU with MMS Flex?

Magic Motorsport Flex boot glitch unlock new user report:

Citroen Berlingo 1.5BlueHDI 100hp.

Bosch MD1cs003 TC298 Psa ECU. Successfully done by Flex.

Autotuner requires main-in unlocking.
Finally unlocked by Flex boot glitch mode.
Very important – if you use too long cables will not work. Use as short cables as possible. To long boot wires will fail the procedure. Solder directly with short wires works fine (see image 5 the pinout instead the adapter. Try without flx4.1 adaptor and connect directly to the E port).

Then read and write on bench mode.