Below the customization, there is a string starting with CDA in the format of CDA * * * */* *.

The latter information can be ignored.

Please check whether the battery charge is sufficient before starting the update, because it may take a long time to complete the update. First, install the online upgrade program above.

1 Open the online upgrade program

If you are using the upgraded software for the first time, it may take a long time to update the software.

After the software update is completed, Sony Ericsson's green ball begins to flash.

3 Choose a language

4 start

5 accept

6 Select the base

7 Shut down/exit the card (SIM card and memory card must be taken out, otherwise it will lead to software error! )/replace the battery/press c to connect the computer, and the computer will automatically detect the drive.

The connection is successful and the available updates are displayed. Click Continue.

It takes a long time to download the update (it took me about 40 minutes).

10 download is completed, and the mobile phone is being updated, which is faster. Don't disconnect the phone from the computer at this time, or you will regret it.

1 1 has been updated and can be disconnected. Congratulations on updating to the latest version.