k750i update problems



Has anyone managed to update their k750i using the sony ericsson site - I want to update mine as predictive text doesn't work. I keep getting the error message, communication error while trying to hold c and plug the phone to the USB port.

Anyone help?


Well-known Member
It only works, as far as I know, with unbranded 750i software. Which means that if you have Vodafone or O2 software, it won't work properly.


Novice Member
Your firmware can be updated through the Sony Ericsson Update Service (SEUS). In order to use SEUS you will need to have internet access (preferably Broadband) and attach your phone to your PC via the supplied USB cable.

You will need to download and install the following drivers:

Sony 750 USB Drivers
Sony 750 Update USB Driver

Follow the driver installation instructions carefully.

You will also need to download and install the following software:

Sony Update Service software

After the installation of drivers and SEUS software, you will need to visit the Sony Ericsson Update Service for your phone:


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