Update – Derringer Tuner

Instructions for updating your Banks Derringer Tuner.

If you are interested in updating your Banks Derringer in-line tuner, follow the instructions on this page.

Before updating your Banks Derringer in-line tuner, check to see if an update is needed.

Watch the video below, and also please read through the entire process before beginning the update process. Instructions are listed below the video.

1. Download firmware file below


Chrysler/RAM/Jeep Grand Cherokee


2. Insert micro-SD card into PC

Using a USB SD card reader or similar device, insert micro-SD card into your computer.

Note: Make sure that any previous update files have been properly removed from the microSD card. Not doing so can cause unexpected results.

micro-SD card is included with iDash 1.8 if you added the data logging option. Otherwise, any micro-SD card from 1GB up to 16GB will work with the iDash 1.8

3. Locate downloaded file

Open Windows File Explorer and Locate the micro-SD card drive

4. Move file to micro-SD card

Transfer firmware file to micro-SD card by dragging files onto SD card drive

5. Eject micro-SD card

Eject and remove micro-SD card from computer

6. Insert micro-SD card into iDash 1.8

In your vehicle, insert micro-SD card into the front of the iDash 1.8

7. Turn Key to “ON”

Turn ignition key to “run” position (do not start engine)

8. Wake the iDash 1.8

Press any button to wake up the iDash 1.8

9. Enter the Menu Screen

Press the Select button (top right) to enter menu screen

10. Select “Firmware Update”

Use the Up and Down buttons to highlight “Firmware Update” then press the Select button

11. Select “61312 Derringer”

Use the Up and Down buttons to highlight “61312 Derringer” then press the Select button

Note: If you do not see “61312 Derringer” in this menu, please verify installation and wiring is correct by referencing the Derringer Owner’s manual.

12. Select firmware downloaded in step 1

Select the proper firmware file that you downloaded in step 1

Note: If your vehicle has two firmware files try the first file, if you receive an error message try the second file.

13. Follow prompts and wait for install

Follow iDash 1.8 prompt and wait for firmware to install (approximately 1 min).

WARNING! Do not remove micro-SD card or turn vehicle off during update

14. Test Update

Once Derringer firmware update in complete start vehicle. Press the Up and Down buttons while on the gauge screen to verify that Derringer power level can be changed properly.

Congratulations! You are done updating your Banks Derringer in-line tuner.