To unlock DB2020 phone you need to have a DCU-60 cable, install the USB flash and device manager driver. The drivers are included in the important file package, so it is downloaded to your \Uni\Files\Ericsson\Drivers\ directory at self update.
To install the USB flash driver you have to disconnect the cable, turn off the phone and connect the DCU-60 cable while pressing the C button.
You can find the USB flash driver at \Uni\Files\Ericsson\Drivers\Gordons Gate\ directory
to install the device manager driver you have to disconnect the cable, turn on the phone and connect the DCU-60 cable.
You can find the device manager driver for the K800 at \Uni\Files\Ericsson\Drivers\K800\ directory
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Sau khi cài driver xong, nhớ chọn USB mode (ô use smartcard sẽ tự động được chọn theo), như vậy thì khi unlock sẽ ko cần thao tác chuyển sang FBUS cable.
Trong tab Ericsson/UMTS/maintenace, chọn đời máy xong click vô nút unlock và ngồi chờ.![]()