HELP: Both The READ and WRITE Button Are Greyed Out After Installing My OFT

Created by Anthony Cardinale, Modified on Wed, 11 Jul, 2018 at 9:14 AM by Anthony Cardinale

The READ button on your OFT may both be greyed because your tablet has already read, and saved your ORIGINAL program from your ECU to its internal memory slot.


The WRITE button may be greyed because the tablet could not auto-generate stage tune files for you. This can happen for a few reasons:

  • The ECU's software calibration code is very new and we have not yet applied the code to the automated tune file generator code base
  • The ECU already has a tune file installed that does not match 100% original code exactly -byte for byte.


But this is OK!!!


You'll need to use Openflash Manager (with a Window based PC) to load our free off-the-shelf stage tune files onto your tablet manually.


Identifying you ECU's software Calibration Code


To check your ECU’s CALIBRATION CODE with your Openflash Tablet:

  1. Connect your OFT to your vehicle 
  2. Turn the key/ignition to the ON position.
    • For cars with conventional keys, that is TWO key clicks from OFF.
    • For cars with push-button start that is TWO button presses WITHOUT depressing the brake or clutch pedal.
    • Your fuel gauge should be indicating a fuel level when your in the ON position.
  3. Select TUNING on your OFT
  4. Select ECU INFO on your OFT

Locate your ECU’s calibration ID from this screen.


Download Your Free Tune Files


Please use our support page to locate and download your tune files. Se the video clip below:



When you locate your tune files on support.openflashtablet.com, you'll need to follow the links to download the files.



Uploading Tune Files to you OFT


Download the appropriate stage program that matches your hardware configuration AND calibration code. Follow the instructions below to load the program onto your Openflash Tablet.


NOTE: To upload files to your OFT, download and install OpenFlash Manager.



NOTE: You MUST a use a native Windows-based PC for the following procedures = virtual machines, or other simulated Windows device/software is not compatible at this time.

  1. Ensure that your PC has an active internet connection.
  2. Open the OFM application.
  3. Connect your Openflash Tablet to your PC using the supplied USB-A to Mini USB cable.
    • On the initial launch, OFM may apply necessary tablet updates. This can take some minutes.
  4. After all updates are applied, navigate to UPLOAD DATA. 
  5. Identify any empty MOD FILE slots, and select the folder icon to the right of the memory slot.
  6. Choose the tune file you’ve downloaded to load a program into the slot.
    • If there are no empty memory slots, you will need to delete any existing program(s) by selecting on the red X button to the right of the slot.
    • You can select continue this process to fill any empty/remaining empty slots with new tune programs.
  7. Once all your desired files are loaded, press START.
  8. After the programs have been written to the memory slots, you can disconnect the tablet from your PC.
    • Loading the programs to the MOD FILE slots can take some minutes.

Programming Your Vehicle ECU

  1. Ensure that your battery is fully charged and healthy
    •  As a precaution you should choose to connect your vehicle to a battery charger/booster.
  2. Connect your tablet to your vehicle, and let it boot up.
  3. Turn the key/ignition to the ON position without starting your engine.
    • For cars with conventional keys, that is TWO key clicks from OFF.
    • For cars with push-button start that is TWO button presses WITHOUT depressing the brake or clutch pedal.
    • Your fuel gauge should be indicating a fuel level when your in the ON position.
  4. Select the TUNING menu option on your tablet.
  5. Select the WRITE option.
  6. Choose the tune file you’d like to flash, and then follow the on-screen prompts.

If you cannot find your ECU software calibration please fill out our form to receive your free off-the-shelf tune files here!





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