please tell us selas

To test the DPF, the following you must pay attention to:
1. Appearance of the product, to check there is whether or not scratches or dirty material on the frame.
2. The accessories and package should be full.
3. All jacks is in good condition for connection. The slot for SD/MMC or CF is smooth for insertion and pulling out.
4. Power on the DPF to test video/photo/ebook etc functions. To observe the displaying, to listen to the voice, to press the buttons on the DPF, to use the remote control to test all functions. Insert the SD/MMC/USB/CF to test the extention storage and reading.

Testing a GPS is a complicated work, you need pay more attention.
· First you have to look the appearance of the device to ascertain the followings is right or in good condition:
1. logo
2. color
3. silk-screen
4. accessory
5. package
· Second power on the device to test the function, the followings you must pay more attention:
1. The indicator of the power whether or not under normal condition.
2. All jacks on the housing whether or not in good connection.
3. The SD card insertion and pulling out the slot is whether or not smooth.
4. To test the function of the photo/ebook/video/music to check:
(1) The effect of the displaying
(2) The effect of the voice
(3) Touch the icon showing on the screen to test the function
(4) According the manual to test the setting
(5) Test the GPS: insert the map card into the device, then start the map.
Go to outside to test the receiption of the GPS signal. then make sure the following function normal:
(1) Receive the signal and orientation is gotten.
(2) The map works smoothly.