EFIS D100: problem when updating firmware to 5.6

[Carpocrates]

Dear Sirs,

We have recently acquired an aircraft which has two Dynon systems, an EFIS D100 and an EMS D120. Since both had firmware version 1.1, we decided to update them to the latest available version 5.6.

We followed the instructions that we downloaded from Dynon webpage as well as the update software provided by you at your official site.

When we updated the EMS D120 everything was OK. No errors happened, and the system started with no errors (however, fuel gauges indicated zero, although both tanks were full).

After updating D120 we started the update process for EFIS D100. First of all, we unplugged pin #2 as recommended in your documentation. The update software gave a message saying that during the firmware update process some error messages could arise (to be ignored), and that the system could reboot several times. Anyway, the process finished OK according to the results in the laptop connected to D100. However, just after the firmware update, the D100 entered a reboot cycle. I mean, it begins to start up, the blue screen with the Dynon logo appears, and suddenly the screen goes blank. After this the blue screen with the Dynon logo appears, and this cycle repeats again and again.
You can see this behaviour in this video we uploaded to Youtube:
https://youtu.be/P4BNgc9nXwc

We have tried to disconnect the D100 from the battery with no positive results.

We decided to restore the firmware backup on version 1.1 we saved before the update in D120 and the process finished OK. However, we cannot restore the previous version of the D100 firmware since it does not start up and we do not find any suitable way to do it.

Our questions are:

- Is there any suitable way to restore the previous version of the D100 firmware by any special procedure? Does it help if we send the backup files to you?

- In EMS D120, if we update again to 5.6, is there any way to save the data configuration so the fuel gauges mark the right amount of fuel?

We would appreciate very much your help.

Thanks and Regards.

 

[Dynon]

Sorry that your upgrade process isn't going smoothly as it should.

First, on the D100: we'll need to see it here to get it working again.

Fuel calibrations are supposed to be saved across upgrade, but it sounds like you've proven that they aren't in some cases. It shouldn't matter if you're coming from a very old version or the last one. Settings aren't importable across firmware versions, so importing your 1.1 settings to a 5.6 system won't help here. Even if we had it here, we can't easily transport those calibrations if the support program-based upgrade isn't preserving them. So your best bet for getting to 5.6 might involve performing a new calibration after upgrade. The D10/D100 series will actually reset all settings if the upgrade process doesn't go smoothly (ie, settings are seemingly corrupted or other anomaly). It doesn't imply anything is wrong with the unit, but it might imply that after an upgrade that you'll need to go through and configure your sensor types / ranges and other things as well as doing the fuel recalibration. One final option, because we'll need to see your D100 here, is to have us take a look at your D120 at the same time. Please send an email to support at dynonavionics dot com or give our support team a call at 425-402-0433 for further help with your systems.