IFD 100 not working

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   After years of working with no problems, I am now having problems with the IFD100 showing the databases missing.  However they are loaded with the proper dates.  Therefore the IFD100 does not sync with my iFD540.  Recently my iMac can not be used anymore due to the OS being older for Jepp updates (frustrating), so I use my Windows computer for the Nav/database updates.
Also I subscribe as an IFD440 to save money on the subscription.  I have been doing this with no problems for years.
Can anyone help?

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Warrenwhis Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 20 Mar 2016 Location: 37388 Status: Offline Points: 45	Post Options Post Reply Quote Warrenwhis Report Post Thanks(0) Quote Reply Topic: IFD 100 not working Posted: 24 May 2025 at 9:47am
	After years of working with no problems, I am now having problems with the IFD100 showing the databases missing. However they are loaded with the proper dates. Therefore the IFD100 does not sync with my iFD540. Recently my iMac can not be used anymore due to the OS being older for Jepp updates (frustrating), so I use my Windows computer for the Nav/database updates. Also I subscribe as an IFD440 to save money on the subscription. I have been doing this with no problems for years. Can anyone help?

Gary Lutchansky Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 12 Oct 2023 Location: Melbourne, FL Status: Offline Points: 1	Post Options Post Reply Quote Gary Lutchansky Report Post Thanks(0) Quote Reply Posted: 1 hour 12 minutes ago at 10:49am
	Let's see if we can help. First, I'll comment on macOS vs. Windows with respect to JDM. The Jeppesen Distribution Manager (JDM) Mac application supports macOS 13 and greater. If your iMac is the 2017 version or greater, you can update the OS to support JDM. Stated another way, an iMac model from 2015 or 2016 cannot run JDM, unfortunately. If you've got the 2017 or greater edition, update macOS then download JDM. Now to the IFD100 issue. I'm not clear on what "...IFD100 showing the databases missing" means. Might you be referring to the "No Nav Database" text that appears front and center for the IFD100 displays if there is no available navigation database? We have different iPads running different iOS versions, so maybe we can recreate your scenario. Let me know what version of iOS your iPad is running. We'll configure similarly and see what might be the issue. If you want faster and live support, call our support line and ask for me, Gary. Edited by Gary Lutchansky - 1 hour 11 minutes ago at 10:50am