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@Akram
Put the unlocked map on a microSD. It can go in a root folder named Garmin with file name gmapsupp.img only, or it can go in a root folder Map as any_name.img, e.g. CNNT_NA_2015.10.img or any other descriptive naming.
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Thread: Nuvi 66LM firmware rollback
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25th April 2015, 03:27 AM #1Garmin/GPS Systems GMod.
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30th May 2015, 11:57 AM #2Garmin/GPS Systems GMod.
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G'day arnon, welcome to GPSPower [New Yorkers are corkers
].
You mean the last sentance in this post by Caty?:
If so, it means you can simply drag & drop the firmware file onto the WebUpdater icon on your desktop, or if you like, you can drag it onto WebUpdater.exe in C:\Garmin\WebUpdater\Program Files [or Program Files (x86) if you have 64 bit OS]. You must first have the device connected in MSM and change the XML file as said above and don't disconnect before flashing via WU. The file will be transferred to the unit's .System folder as GUPDATE.GCD and the unit will then downgrade the fw on the next reboot.
Originally Posted by catymag
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2nd June 2015, 12:42 PM #3Junior Member
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Thank you Neil for the clear instructions - will do it over the weekend.
Last question - what do you refer to by "MSM"?
THX
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2nd June 2015, 12:48 PM #4Important User
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Mass Storage Mode Originally Posted by arnon
You have to navigate to get to the good.
Galaxy S5 Kitkat 4.4.2 / Nuvi1200->1250 / Nuvi3790T->34xx / Nuvi 2200 / Nuvi 66 / Oregon 600
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28th June 2015, 01:45 PM #5Junior Member
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Thanks Neil - I followed your instructions post #2 to the letter and managed to downgraded the FW from 4.30 to 3.20 without any problem. I have a Nuvi 65LM. It now recognizes my unlocked North America maps
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24th July 2015, 09:09 AM #6Junior Member
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guys,
Any idea where i can download Garmin Updater.exe v.2.8.0. the current version does not allow to open the firmware file & keeps going on line to check for updates
THX
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24th July 2015, 09:27 AM #7Garmin/GPS Systems GMod.
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24th July 2015, 10:25 AM #8Junior Member
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Hi,
Got it, but even after setting the device to mass storage & installing Garmin's USB driver package the WU does not see the unit in USB mode
Any suggestions?
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24th July 2015, 10:33 AM #9Garmin/GPS Systems GMod.
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Then follow the method in Post #2, surely that's why you were asking for latest Updater.exe anyway [although it's not usual that your unit isn't seen in Windows by WebUpdater whether it's set to MTP or MSM].
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