Zumo 550 Brought a Zumo 550 while on holiday in Florida, also brought Europe maps to use when I got back to England.Loaded software and maps onto my pc.Then loaded Europe maps onto a 4GB SD card. My problem is it will not allow me to enter a UK post code or any other desination. It only allows me to enter a state or province.Not a town or city in Europe. Can anyone help, or had this problem. Tony Bird

The latest version of Garmin Express provides the ability to install a map update directly to an SD card.
The SD card installation option will only appear when updating a compatible device that does not have sufficient internal memory for the largest allowable map region. When using the SD card installation option, critical files are loaded to the SD card so it must remain in the device after the update to ensure full functionality. For the largest size SD card a device can use, refer to: What is the largest size Secure Digital (SD) card that an automotive device can accept?
The SD card support during the map update will only function with up-to-date software. It may be necessary to update the device's software with Garmin Express prior to updating the maps. These devices do not support the SD card option:

• Nissan 700
• nuvi 295
• nuvi 300 series
• nuvi 500 series
• nuvi 600 series
• nuvi 800 series
• nuvi 805 series
• nuvi 5000
• StreetPilot series
• zumo 450
• zumo 550
• zumo 665

For devices that do not support using the SD card with the map update application, any maps that do not fit in the internal memory can be installed to the SD card manually, using these instructions:

Try the link.it may help.Under support.
Garmin United States Home

Contact Garmin directly and ask for a CD version to be mailed to you.

Hold down on and + button together for a while, that will reset all.

On my Garmin (another model but still) all changes to the installed maps are performed through the Mapsource software. You activate and deactivate what you want to have installed and then use the transfer function.

Make sure you have enough memory for the maps you need to have installed, maybe you need a little memory card like 2 GB or so, Mapsource should tell if there are any problems though.

Maybe your machine uses other software but I doubt it.

One more thing: I found it to be extremely much quicker and reliable to do the transfer directly onto the SD card through an USB adapter than through the cable, for some reason the cable slowed everything to a fault-prone crawl.

Good luck!

1. Make a backup of your Zumo by copying all the file to your computer.
2. Using your PC and MapSource select all the maps then send them to a SD memory card need 2Gig or bigger card.
   
3. Try to rename this file to gmapprom.img and replace the same named file in your zumo. (I haven't tried this personally, so if it fails, just replace this with your backup and all will be as it was.)
   
4. If this fails, you can use the SD memory card in your zumo and it will use this map instead, but it will take longer to boot your zumo.
   

The problem is solved but why would i tell you how to do it for free when you wanted to charge me for your advice what do you think i am stupid.

The 730, unlike the 930, doesn't come with European maps preloaded. You can find the most up to date Tele Atlas maps of the UK & Europe over at TomTom's Map Store.

Do you see a map, with street detail? Any SD card installed?
Tap the wrench symbol, tap mapping, tap about, any maps checked? if not, check the apropriate map and go back to the map screen

How do you load maps? and are these Garmin maps. I try to keep the Zumo original and use an SD card for extra maps. Did you try this yet? And if you are using SD cards, try a different brand/quality. I had some lockups with crappy budget cards. Kingston, Sandisk and some other A brands work fine!

I locked my garmin zumo 550 and forgot the passcode