No Nav Database

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   I had posted this issue once before but it seems no one else has experienced it but I have a few more thoughts.  At times, when I have updated the databases in my IFD 540s, upon the restart I got a message that there was NO Nav database present.  I've had to reinstall the Nav database.
Now I believe it only happens when I am updating Nav, Obstacles and Charts all at the same time.  Tech support has suggested I always reformat my thumb drives before each download from Jepp  I do this.
On this latest occurance, after taking the drives to the plane 
and selecting nav, obstacles and charts to update my IFDs, upon the 
restart I got the message that there is no Nav database.  I then used 
the thumb drives to reload the Nav data only again, did a restart and 
all was good again. 
Thinking it was only happening when I had to 
install Nav data, obstacles and charts all at once.  My theory was that 
it did not happen when I only was updating nav/obstacles or only charts.
To
 test this, I put the thumb drives back in and selected ALL 3 to update 
again. As expected, upon the restart, I had no Nav database again.  I then 
updated the Nav data ONLY, did a restart and was back in business.
Has anyone else experienced this?

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teeth6 Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 10 Mar 2014 Status: Offline Points: 741	Post Options Post Reply Quote teeth6 Report Post Thanks(0) Quote Reply Topic: No Nav Database Posted: 27 May 2018 at 10:29am
	I had posted this issue once before but it seems no one else has experienced it but I have a few more thoughts. At times, when I have updated the databases in my IFD 540s, upon the restart I got a message that there was NO Nav database present. I've had to reinstall the Nav database. Now I believe it only happens when I am updating Nav, Obstacles and Charts all at the same time. Tech support has suggested I always reformat my thumb drives before each download from Jepp I do this. On this latest occurance, after taking the drives to the plane and selecting nav, obstacles and charts to update my IFDs, upon the restart I got the message that there is no Nav database. I then used the thumb drives to reload the Nav data only again, did a restart and all was good again. Thinking it was only happening when I had to install Nav data, obstacles and charts all at once. My theory was that it did not happen when I only was updating nav/obstacles or only charts. To test this, I put the thumb drives back in and selected ALL 3 to update again. As expected, upon the restart, I had no Nav database again. I then updated the Nav data ONLY, did a restart and was back in business. Has anyone else experienced this?

PA20Pacer Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 07 Mar 2012 Location: Illinois (LL22) Status: Offline Points: 161	Post Options Post Reply Quote PA20Pacer Report Post Thanks(0) Quote Reply Posted: 28 May 2018 at 8:11am
	For what it's worth, I have often updated Charts, Navdata and Obstacles at the same time with no issues, although I most commonly do Charts separately from Navdata and Obstacles. Regards, Bob
	Bob Siegfried, II Brookeridge Airpark (LL22) Downers Grove, IL

teeth6 Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 10 Mar 2014 Status: Offline Points: 741	Post Options Post Reply Quote teeth6 Report Post Thanks(0) Quote Reply Posted: 28 May 2018 at 10:38am
	Bob, Thanks for the feedback. It must be something unique to my setup but it's only been since 10.2.1 Larry

PA20Pacer Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 07 Mar 2012 Location: Illinois (LL22) Status: Offline Points: 161	Post Options Post Reply Quote PA20Pacer Report Post Thanks(0) Quote Reply Posted: 29 May 2018 at 8:09am
	Hi Larry- Now you have me thinking again. I am not 100% certain that I have updated all three databases together since the 10.2.1 update. I may give that a try, but it will have to wait until the 6/21 Navdata cycle. Regards, Bob
	Bob Siegfried, II Brookeridge Airpark (LL22) Downers Grove, IL

teeth6 Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 10 Mar 2014 Status: Offline Points: 741	Post Options Post Reply Quote teeth6 Report Post Thanks(0) Quote Reply Posted: 29 May 2018 at 8:30am
	Bob, I re-tested my theory over the weekend and proved it false. I had Nav, Obstacles and Charts on the stick but ONLY updated the charts. It did skip the Nav and Obstacles but still it wiped out my Nav database at the end of the chart install. Back to the drawing board.......