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HowDoI / ReflashADL1FromAPC

How do I re-flash my DL1 MK1 / MK2?

Step 1

Inform Race Technology that you require the latest DL1 MK1 / MK2 Reflash file before continuing. Once the DL1 unit has been deemed suitable for Relfashing, we will then send you the correct & relevant Reflash file via email. Once received, download the Reflash file from the email to your PC. To do this you can simply drag & drop the Reflash file in the email over your PC desktop & release.

Step 2

Connect the DL1 MK1 / MK2 unit to your computer / laptop. Use the serial / RS232 communications port on the DL1 unit. For the DL1 MK1 the port is located on the front of the unit. For the DL1 MK2 the port is located on the units rear panel.

DL1 MK1:

DL1 MK2:

Be aware you will require a Null Modem Cable to connect the DL1 MK1 / MK2 unit to your computer / laptop. A Null Modem Cable will have been supplied with the DL1 unit originally. However if you are unable to locate it, you can purchase another one here -

Additionally you may also require a USB to Serial Adaptor, in order to connect the Null Modem Cable to your computer / laptop. However this is only required if your computer / laptop does not have a direct serial connector input. A USB to Serial Adaptor can be purchased from here -

Step 3

Download the complete Race Technology software installation package if not done so already, this can be located here - Be sure to install the RACING version of the software installation, this allows the user full access to all road legal & motorsport product configuration tools.

Step 4

Open the DL1 MK1 / MK2 Reflash Tool, its location is found in the Race Technology Program Launcher. Again you will need to have installed the RACING software installation package firstly, before you can access this tool.

Step 5

Proceed through the DL1 Reflash wizard by selecting the following options as they appear.

Select Yes when you are ready to perform the Reflash:


Select the correct communications port, the image below shows a connection through a Null Modem Cable & USB to Serial Adaptor:


Load in the latest DL1 MK1 / MK2 Reflash File into the tool. Race Technology should have already provided you with this, if not you will need to get in touch with us before continuing. The image below shows a DL1 MK2 Reflash file:


Ensure the conditions stated in the window below are present before clicking OK:


Power your DL1 unit when prompted to do so:

Ensure the DL1 MK1 / MK2 unit remains connected to the PC & powered whilst the Reflash file is installing. Removing the connection or power during Reflash file installation can result in a Failed Reflash, this has the potential to cause issues with the units operation. If unsure Race Technology can help with this stage or fix problems caused by a Failed Reflash.

Page last modified on March 04, 2019, at 01:20 PM