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How to copy the data in Navigation SD to a new SD card?

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1​

Insert the first SD card into your computer's card reader and click "Open Folder to View Files" in the AutoPlay window. If you do not see this AutoPlay window, press "Win-E" to open Windows Explorer manually.

2​

Right-click the SD card's drive letter and click "Copy."

3​

Right-click "Desktop" at the top of Windows Explorer's left pane. Click "Paste" to copy the contents of the SD card into a new folder that is named after the drive label, such as "SD Card." Wait until copying is completed.


4​

Click "Desktop" in the left pane and double-click the newly created folder to confirm that its contents match those of the old SD card.

5​

Press "Ctrl-A" to select all files and folders, right-click any selected file or folder and click "Copy." If you do not wish to keep the PC copy of your SD card after transferring it to the new SD card, click "Cut" instead.

6​

Right-click the SD card's drive letter and select "Eject."

7​

Remove the old SD card and insert the new SD card. If the AutoPlay window appears, close it.

8​

Right-click the new SD card's drive letter, which is probably be the same as the old SD card, and click "Paste." Wait until copying is completed.

9​

Right-click the new SD card's drive letter and click "Eject" to remove the card.
 

1​

Insert the first SD card into your computer's card reader and click "Open Folder to View Files" in the AutoPlay window. If you do not see this AutoPlay window, press "Win-E" to open Windows Explorer manually.

2​

Right-click the SD card's drive letter and click "Copy."

3​

Right-click "Desktop" at the top of Windows Explorer's left pane. Click "Paste" to copy the contents of the SD card into a new folder that is named after the drive label, such as "SD Card." Wait until copying is completed.


4​

Click "Desktop" in the left pane and double-click the newly created folder to confirm that its contents match those of the old SD card.

5​

Press "Ctrl-A" to select all files and folders, right-click any selected file or folder and click "Copy." If you do not wish to keep the PC copy of your SD card after transferring it to the new SD card, click "Cut" instead.

6​

Right-click the SD card's drive letter and select "Eject."

7​

Remove the old SD card and insert the new SD card. If the AutoPlay window appears, close it.

8​

Right-click the new SD card's drive letter, which is probably be the same as the old SD card, and click "Paste." Wait until copying is completed.

9​

Right-click the new SD card's drive letter and click "Eject" to remove the card.
After the old SD card is inserted into the card reader, the computer shows that the SD card is not formatted and cannot access the SD card.
 
Found this in the forum, I have not read it but it may be helpful.