Garmin Maps expiration Date

**Cnfhbr** · 30th May 2018, 01:09 PM

Is your Update SD Card formatted in FAT32?

**aktroller** · 30th May 2018, 07:52 PM

Yes it's FAT32. It tries to install like a normal upgrade. The only thing that show on the screen is "Transferring to Recovery Region" and then "Recovery Loader Ready". After a brief time, the screen switches to the normal upgrade screen as seen above. No changes are made to the machine.

**Cnfhbr** · 31st May 2018, 07:51 PM

Have you tried replacing that SD card with a known-good card (not more than 32 GB)?

Originally Posted by aktroller

The only thing that show on the screen is "Transferring to Recovery Region" and then "Recovery Loader Ready".

Here's the official manual:

Code:

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**aktroller** · 1st June 2018, 03:08 AM

I've tried with 2 different cards (32GB) that work fine for the regular updates. Tried today with disconnected from the NMEA network with no change in the outcome. I wanted to try with a 2 GB card, but it won't quite fit. I'll look for a new card tomorrow and give it a try. I did discover on another thread ([Only registered and activated users can see links. ]) a successful roll back on a 7400 series. Not sure if it's a straight chartplotter or a combo like mine. Fingers crossed.

I've been using 16 GB card that have worked well in the past. Tried an new 8 GB card today with networking disabled - no change ( see [Only registered and activated users can see links. ] #5). Then tried with everything but the power cord disconnected, and again no change. It's looking like I'll be using my laptop for my custom charts. Thanks to all for the suggestions.

**elcumendator** · 23rd June 2018, 12:37 AM

Hi,
i have the gpsmap 7410 with the ultimate firmware version. How do I install the modified firmware?
thanks

**Simplicity** · 25th June 2018, 02:50 AM

Start by reading this thread ... there you will find out how.

**EA1EF** · 30th December 2018, 08:12 PM

Dont know if will are a bad news but just install in ECHOMAP PLUS 92sv Firmware 7.50 a Third party >IMG map generated in [Only registered and activated users can see links. ] and it works (many terrestrial info but not so much sea info, its very interested for lake navigation that are my case) , after install just advice that the map expire in 8 Feb 2019 40 days after installation.

Its only 40 days of working map, after try a backup reset and reinstall to see what happens.

**xxArtxx** · 3rd January 2019, 07:21 PM

I suppose it works nicely for the manufacturer that you can’t easily spoof the time for a GPS device :D
and I take it that also means the time of expiry has to exist in the firmware file.