Problem: Tried to read and write Simos 18.1 ECU with Foxflash but extract password not working.

Solution:
Voltage is not good.
User feedback:
Solved! Had a problem with the resistances, the voltage is true, the power
supply died and did it with the standard.
READ OK.
WRITE OK.
CHEKSUM OK
FOXFLASH.
STAGE 1 + POPS
VW GTI 7 2.0TSI 230CV
Alientech KESS3 released a new protocol for EVPT VCU3000- Citroen, Fiat, Opel/Vauxhall.
Take the next step in EV tuning: work in BOOT mode on the latest EVPT VCU3000 units, now supported on ultra-compact electric vehicles equipped with 5.5 kWh systems from 2025.
EVPT VCU3000 — Citroën, Fiat, Opel/Vauxhall.
Work in BOOT mode on the new
VCU units for EVs, now supported.
03.12.2025 — UPGRADE 2.67
With this update you can operate directly on the memory of the EVPT VCU3000 control unit, installed on ultra-compact electric vehicles from Citroën, Fiat and Opel/Vauxhall with 5.5 kWh power units from 2025 onward.
The BOOT connection guarantees full access to the VCU data, enabling complete read and write operations for accurate parameter management and full control over your tuning workflow. A solution designed for workshops beginning to work on the new generation of micro-EVs.
Thanks to the support for Citroën Ami, Fiat Topolino and Opel/Vauxhall Rocks-e, you can expand your service offering to include electric vehicles increasingly common in urban environments, providing specialist and high-value services.
Technical focus
Connection: BOOT
ECU: EVPT
VCU3000
Production years: from 2025
Brands involved: Citroën, Fiat, Opel,
Vauxhall
Supported vehicles
Citroën Ami
Fiat Topolino,
Opel
Rocks-e
Vauxhall Rocks-e
Read and write Skoda Fabia 1.2 12V Siemens Simos 3PG ECU with Foxflash successfully.
Lambda OFF.
BOOT
Read 2min.
BOOT Write 4min.
Checksum by Lsuite.
FoxFlash does not correct the checksum for this type driver.
Only self do with other software like Lsuite.
FormulaFlash ECU TCU programmer released new software version 1.0.8.0 on December 1st, 2025.
V1.0.8.0
Adds following ECU types:
Volvo
EDC15C11–3.XNO1
EDC15C11–4.X250KNO1
EDC15C11–4.X500KNO1
EDC15C11–3.XNO2
EDC15C11–4.X250KNO2
EDC15C11–4.X
500K NO2
EDC15C3 KLINE NO1
EDC15C3 KLINE NO2
EDC15C7 KLINE
Opel
ME1.55 KLINE
ME7.6H4 KLINE
ME7.6.1
KLINE
ME7.6.2 KLINE
ME7.6.1 KLINE
ME7.6.2 KLINE
JAGUAR
P3.ONA 4.2SC, 4.2 V8 V8SC, 4.2SC
LANDROVER
P3.ONA 4.2SC, LANDROVER AJ33 4.2
MITSUBISHI
64F7058, 64F7059
Mercedes-Benz
ME9.7 Read/Write +CKS
China Ruiyi Tech
TR40 BENCH read&write by bench
China Bosch
ME7.5.20 EEPROM+FLASH Read/Write
ME7.5.30
EEPROM+FLASH Read/Write
ME7.9.7 EEPROM+FLASH Read/Write
ME7.9.7 Two Models
DTC OFF
CONTINENTAL/Siemens
SIMK43 AT ECM FLASH
Read/Write
SIMK43 AT TCM FLASH Read/Write
China Delphi Series
MT62.1 MT22.3
MT62.1U
MT62.1
MT95.1 MT62.3
MT62.1
MG1US/MG1U Read/Write Flash LASH and EEPROM + CKS+ Clone
BMW: MSD81
Coolant Temperature Calibration
OBDSTAR X300 Classic G3 worked very well today, had to do DTC off on a Peugeot boxer dcm6.2c.
ECU type: DCM6.2C
Mode: Boot mode.
Read ext eeprom and int flash ok.
Write eeprom and flash ok.
Only had DCM6.2A listed but I
know the pin out is the same.
Worked great with fast read and write and even did the checksum correction.
DC706 will do the same in boot mode.


