cobra rtp

FlashOnline R4

Out of stock, preorder.

The product may differ slightly from that shown in the showcase images (color, inscriptions, design).


Producer:, Republic of Belarus.


FlashOnline — universal flash memory emulator 28Fxxx/29Fxxx, which allows you to programming the standard ECU in real time mode!


  • Live editing of firmware in real time, even while the engine is running!
  • Officially compatible software - TunerPRO RT
  • Also compatible with any software such as WinOLS, RomRaider, etc. in teal time mode through CobraRTP Utility with Autoupload feature).
  • Live map tracing in TunerPro RT (Address bus scanner)
  • Remote connection via Bluetooth interface (if provided)
  • Uploading 2 different firmwares and switch without a PC (Dualmap) more detailed)*
  • Can be installed in an ECU case - the device is smaller than a credit card!

Standart kit:


  • USB-mini cable not included
  • ECU adaptations cannot be written to the emulator (on the ECU side it works in read mode only)
  • They are not used independently and serve as an integral part for other technical means (car ECU)

User manual, software and driver

Out of stock, preorder.

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Short description: the device is installed instead of the standard flash memory chip in the ECU and performs the same role, but with the ability to change data (firmware) from PC in real time during ECU operation.

Review on MS4X Wiki
In simple words about the product on Drive2 (ru):

Compatible ECUs: 

Flash memory 28F200, 28F400 / 29F200, 29F400, 29F800 (SOP-44 only). CPUs: Infineon (Siemens) C167 (C166), ST ST10F273, ST10F275, Motorola ZC439512, ZC439615.

  • Siemens MS41.0, MS41.1, MS41.2, MS42, MS43, MSS52, MSS54, SIMK31-43, MS5150, EMS2000, 5WK (SMG-2)
  • Bosch ME3.8.3, M5.2.1, ME7.1, ME7.1.1, ME7.2, ME7.4.4, ME7.4.6, ME7.5, ME7.9.6, ME7.9.7, MP7, EDC15 (P/P+/C4/C6/VM), MED7.6.2
  • General Motors (GM) engines: LS1, LS2, LS3, LS6 LS7 ECUs: P01, E37, E38 (Corvette, Camaro, Firebird 1997 – 2011*) 
This list presents some of the supported ECUs, the list is wider and limited only by the type of memory installed in the ECU.

FlashOnline has been tested with the following ECUs:

Siemens MS41, MS42, MS43, MSS54, MS5150, 5WK (SMG-2); 
Bosch ME3.8.3, M5.2.1, ME7.1, ME7.1.1, ME7.2, ME7.5, EDC15C6, EDC15P+, EDC15VM

How do I know for sure if my ECU is supported?

To do this, you need to open the ECU and make sure that one of the supported ROM types is installed:

In this case, flash memory type 29F400 from AMD (AM29F400BB-70SE) in SOP-44 package


What parameters (maps) can I tune with FlashOnline?
A set of parameters, maps (calibrations) determines the software that you will use. FlashOnline is a universal hardware tool for online “firmware” of an ECU, therefore it does not in itself limit any ECU to a specific set of parameters, tables, etc. For example, in TunerPRO RT a set of parameters is specified using XDF file, which must correspond to the specific firmware of a specific ECU. More information here. You can also use any software and upload firmware to the emulator using our PC utility ( CobraRTP Utility with Autoupload feature)

Is WinOLS, RomRaider and other software supported besides TunerPRO RT?
You can use any editor that saves firmware in binary format (bin), and then using our utility you can upload data online using the "Autoupload” или отдельно как файл.

What file (firmware) is loaded into FlashOnline?
Since the memory emulator replaces the flash memory chip, it is necessary to load the full firmware (dump) into the emulator, which is a multiple of the memory size of the chip of a specific ECU. For example, if it is 29F400, then in order for the ECU to work, it is necessary to load 512 kByte firmware into the emulator. And then during the tuning process you can load (change) only calibrations (tables, parameters).

Does FlashOnline calculate the checksum?
No. You need to take care of this every time you start the engine after changing the calibrations, or disable the checksum verification.

Will ECU diagnostics by OBD2 work after installing the emulator? 
Yes. The ECU “sees” the emulator as a chip. The emulator does not limit the functionality of the control unit in any way.

Do I have to use FlashOnline permanently after completing the tuning process?
No, FlashOnline uses the same firmware file as the flash memory chip, therefore, after the ECU tuning process with the emulator, you can install the chip back and write the necessary firmware (calibration) to it via the OBD connector, i.e. flash the ECU in the standard way.

Do I need to buy a TunerPRO RT license to use FlashOnline?
No, not required. This software works with FlashOnline and our other products without a license and without any restrictions.

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Attention! CobraRTP products are designed for use in motorsports! Use on civil transport and/or public roads is prohibited!

Dear visitors and clients!
From May 30 to June 14 we are on vacation.
The support service will respond with delays; orders already placed are being processed as normal.
Sorry for the inconvenience and thanks for your understanding!

Best regards, CobraRTP Team.

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