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4th July 2020, 02:27 PM #1
Trouble with connecting to the GPS [nuvi 2547LMT] device on Mac/Windows
I have always updated my maps through the connection to my Mac device, but since I have lately updated my device (nuvi 2547LMT HWID:1582, version with lifetime Europe map updates) to the 5.50 version my device isn't seen by any of my Pcs or Macs. I have tried Mac Catalina, older versions of Mac, Win 10, 8, 7 and even XP and other modded versions of Windows (JG). Every time, the Garmin app failed to recognize that my GPS device is connected to the PC/Mac so I can not update my maps, the system on my GPS or revert to a previous version. I have tried formatting the disk of my Garmin device, restoring it to default factory settings. Even since I have installed new cracked maps through a SD card and everything works like it should. Is it possible to install my system again only through using a SD card, without using a Mac/PC, or perhaps some of you have any other solutions to my problem? Thanks for the help in advance.
kilikop Reviewed by kilikop on . Trouble with connecting to the GPS [nuvi 2547LMT] device on Mac/Windows I have always updated my maps through the connection to my Mac device, but since I have lately updated my device (nuvi 2547LMT HWID:1582, version with lifetime Europe map updates) to the 5.50 version my device isn't seen by any of my Pcs or Macs. I have tried Mac Catalina, older versions of Mac, Win 10, 8, 7 and even XP and other modded versions of Windows (JG). Every time, the Garmin app failed to recognize that my GPS device is connected to the PC/Mac so I can not update my maps, the system Rating: 5
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4th July 2020, 11:35 PM #2
On the Trip computer page press ond hold velosity 10 seconds.
Untill servise mebu appear.
Try Configuration and Settings - MTP settings.
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5th July 2020, 01:44 AM #3
Unfortunately, that didn't help me, I had set it to MTP Auto Detect, then i tried setting it to Mass Storage or Mass Storage Single Session, but the computer still cannot detect the GPS device.
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5th July 2020, 02:30 AM #4
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5th July 2020, 04:25 AM #5
We are assuming you have used different USB cable & have checked the USB port on the device for any physical damage with a magnifying glass(a common problem)
Alternatively plugging USB cable into PC/Mac and very gently moving the cable at the device end will sometimes make a connection & show up.
So the device works & charges as normal without issues ?
With out connection,you are just doing a "factory reset" not Formatting,which is a last resort and not to be attempted by a novice.
If a corruption occurred after an update with Garmin Express,you normally see start up issues.?Then we would look at using Garmin Cure.
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5th July 2020, 05:14 AM #6
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5th July 2020, 05:23 AM #7
I have checked the USB cables numerous times, tried moving it and it still doesn't work. It isn't a trouble with the PC or the USB cable, because updating my 2 other Garmin devices which connect normally with the PC works as it should. The device works and charges normally. You are right, I have done a factory reset but it hasn't helped. The problem is that I don't see any start up issues, so I don't even know where to start. The USB connects the device with my PC because it even charges the device, but neither the PC won't see the device in any way it should, nor the device won't show the "connected with a PC" icon. What should I do?
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5th July 2020, 06:01 AM #8
Everything you have done to diagnose this problem IMO points towards a Hardware issue,I have a box full of devices with damaged USB ports only keeping to salvage other parts.
Firmware 5.50 has been out for over 3 years without any reported issues.
Google USB Port problems
Here are instructions & Cure3 but I would be opening it up and checking the USB port joints first as you are going to end up frustrated as it is not easy for a novice
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Niksan (31st March 2023)
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5th July 2020, 04:48 PM #9
Altough Nuvi 2xx7 doesn't requires a Firmware Patch, here it is an SD Package for your Device
Nuvi 2xx7 2xx8 (1582) fw5.50.rar
You shold know how to make this update.
This Package shuold restore Device Firmware if somethings went wrong
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bebilakner (28th August 2020), kilikop (6th July 2020)
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5th July 2020, 04:59 PM #10
Thanks for your help, but sadly, after I've done everything you told me to do Garmin Cure program pops up an error message "The serial port "COM" does not exist". I have been using this version of firmware for my GPS - "nuvi2xx7and2xx8_550.gcd, HWID 1582".
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