Loading maps to SD card on Android

Android's handling of SD cards is quite complex. The bottom line is, if you put the maps in the /Download/Memory-Map folder on the removable SD card, the App should be able to find them.
Here's how it works:
On many phones the removable SD card is the only externally accessible storage. When you start the app, it will automatically create the /Download/Memory-Map folder, and this is where the maps and overlay GPX files are stored.
Some other phones have internal flash storage as well as a removable card. Then you connect a phone like this onto the PC, it will mount TWO removable drives on the PC.
However, the Android operating system only has support for ONE externally accessible storage area. So on these phones, the internal storage is the "main" storage area, and this is where the /Download/Memory-Map folder is created on installation. 
The way the removable card is accessed depends on the device manufacturer. There is no guaranteed way for an app to know whether there is a removable card or how to access it. But there appears to be some conventions and we have most branded devices covered and the app will look for the "/Download/Memory-Map" folder on the secondary storage (SD card), if it exists.
That means that if you want your maps stored on the SD card rather than the internal storage, you need to create a download folder on the SD card and copy the Memory-Map folder, complete with all sub folders and maps to the downloads folder on the SD card.
However, if you then start downloading new maps from the DMS, they will go to the original location on the internal storage.... So the way to stop that is to move the Download folder, complete with everything in it, to the SD card. Make sure the Download folder is deleted on the internal storage. Now there is only one Download folder and all downloads will go to the new location on the SD card.
Note: Two common errors here is to miss spell the folder names (/Download/Memory-Map) and not using correct capitalization
Here's another way:
Using your File Explorer app to locate the map file (with a .qct file extension), tap a QCT file, it should open in Memory-Map. 
This also causes Memory-Map to add the containing folder to the list of places to search for maps each time it loads, so if you add more maps to the same folder, it should pick them up automatically.
Unfortunately this doesn't work with ALL file explorer apps so we suggest you download the free app ASTRO from Google Play as we have tested extensively with this app.

Android's handling of SD cards is quite complex. Here we explain how to manage your map files on secondary storage locations.

First make sure you have the free Memory-Map app installed (from Google Play Store).

If copying map or chart files from the PC, you can find them under the C:\Maps folder.

The default location for all maps being downloaded from within the app is in the Memory-Map folder which is in the Downloads folder on the device default storage ( 
/Download/Memory-Map ). If you need to free up some space on the internal storage you can....

Put them anywhere you like (requires v2.1.0 and later):
 
You can place the map files in any storage location you choose... 

(Please note that for the time being, incomplete map files placed on an external SD card cannot continue to download content and grow in size. So make sure you have download the area of map you need before moving the map files to external storage. This was the security restriction Google introduced with Android 4.4 and later. We will endeavour to improve the situation in a future release). 

... This is achieved either by copying map files from a PC directly to an sd card or by moving them 
(cut and paste) between storage locations within the Android device using a File Explorer app.

Then, using a file explorer app, all you need to do is 
locate and open the map file (with a .qct file extension), and it should open in Memory-Map. 

This also causes Memory-Map to add the containing folder to the list of places to search for maps each time it starts, so if you add more maps to the same folder, it should pick them up automatically.

Unfortunately, this file association doesn't work with ALL file explorer apps, so we suggest you download and use the free app ASTRO from Google Play, as we have tested extensively with this app. User feedback also suggests SD File Manager or Amaze are viable alternatives.

================ MEMORY-MAP TECH TEAM ================



Article Details

Last Updated
2nd of September, 2016

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