simos.app OBD-II Dongle

Flash, log and diagnose supported Simos ECUs and DSG TCUs directly through OBD-II over Bluetooth Low Energy.

€55 plus €10 global tracked shipping.

Supported Simos and DSG control units

One compact interface for supported engine and transmission control units. Exact availability depends on the ECU or TCU software version; see the compatibility overview before flashing.

Simos 18.1 / 18.6 / 18.10

ECU

Unlock, CAL and full BIN flashing are available for all supported Simos 18.x versions. Log with Mode 0x22 or high-speed logging where available.

Simos 12.1 / 12.2

ECU

Mode 0x22 logging and factory updates are supported. Unlock and custom BIN flashing are not available for Simos 12.1 or 12.2.

DQ250 MQB

TCU

Use the dongle with supported DQ250 MQB transmission software for compatible simos.app logging and flashing workflows.

DQ381

TCU

Connect supported DQ381 transmission control units through OBD-II for compatible simos.app logging and flashing workflows.

Before writing an ECU or TCU, review the flashing information.

Flash and log without a bench setup

The dongle combines ECU flashing, TCU workflows and live diagnostics in one small Bluetooth interface.

Unlock, CAL and full BIN

Simos 18.x

Unlock and write CAL or full BIN files on every supported Simos 18.x ECU directly through OBD-II.

Up to 50 Hz logging

Diagnostics

Log at up to 10 Hz with Mode 0x22 or up to 50 Hz with HSL. Monitor boost, knock, lambda, ignition timing and more.

Factory updates

Simos 12

Run supported factory updates on Simos 12.1 and 12.2 while keeping the clear restriction against unlocks and custom BIN files.

Open diagnostic stack

Protocol

Classic CAN at 500 kbit/s with ISO-TP and UDS, transported through a compact Bluetooth Low Energy interface.

OBD-II powered

Hardware

Plug directly into the vehicle OBD-II port. No external power supply or bench harness is required for supported workflows.

Compatible with SimosTools for Android and VW_Flash

The simos.app dongle can also be used with established third-party tools on Android and desktop.

SimosTools Android app

Android

Compatible with the SimosTools Android app for logging and supported flashing workflows. SimosTools uses its compatible dongle firmware.

VW_Flash

Desktop

Compatible with VW_Flash on desktop for supported ECU and TCU flashing workflows.

Technical specifications

Connectivity — Bluetooth Low Energy

Protocol — Classic CAN at 500 kbit/s, ISO-TP and UDS

Logging rate — Up to 10 Hz (Mode 0x22), up to 50 Hz (HSL)

Power — OBD-II, 12 V

Development and research device

This device is intended for development, research, testing and educational use in controlled environments. It is not a certified consumer product and has not undergone Bluetooth SIG, CE or FCC certification. By purchasing, you acknowledge its intended development-device use.

Ready to flash, log and diagnose?

Order the simos.app development dongle for €55 plus €10 global tracked shipping.

Not sure about your ECU or TCU? Check the supported vehicles and control units first.