Android Gingerbread version upgrade
Added to search media files in search Widget
Display result according to Music, Album, Artist, Video, Picture.
Added System control button on the status bar
Wi-Fi, Bluetooth, RAM, Sleep.
Added Sleep timer function.
Added function to use ringtones.
Improved browsing speed of file list.
Improved displaying quality of Album Art.
It is possible to use calendar without register Google account.
Added function to move pages.
Support to save VCF files which are transferred by Bluetooth in the contact list.
VoIP
*** Please set date and time to use Apps which need log in via internet as Twitter.
Please check the upgrade program is installed.
Start the upgrade program.
Press and hold the Power/Hold button to turn off the device.
Connect the USB cable and AC adapter while pressing volume +/- buttons at the same time.
Click Upgrade button when the device is connected.
If the program is not recognizing your device, please reset the device and retry from

Click Yes button to continue upgrade.
It is recommended to back up any important data before the firmware upgrade.
Caution!
Back up any important data before the firmware upgrade.
All date will be reset to factory default.
Please remove the MicroSD card before upgrade the firmware upgrade.
Do not disconnect the USB cable before the firmware upgrade is completed.
Disconnect the USB cable and AC adapter when the firmware upgrade is done as below.
Then, turn on the device and reconnect the AC adaptor.
Settings > Unmount internal memory > Erase everything to format the device.
Upon finishing firmware upgrade, verify the installed firmware version from
Settings > About D3 > Firmware version.