Hello,

you can run Hypercard2 with Sony/Ericsson W850i and other newer SE mobiles.

If there is a problem, always make sure that you update the SE Firmware

Here is a great website that walks you through the firmware update without any problem:

LINK

The Digital Dualsim IV from 2-phones-in-1.com works well in SonyEricsson K610i. The phone need s to be run in GSM mode.

No simcard cutting is required. See the adapter description here

Here are pictures from Digital Dualsim IV in K610i:

Picture1 Picture 2 Picture 3 Picture 4

If you have a Sony Ericsson K800i phone, you can use the universal dual sim from www.2-phones-in-1.com.

You switch the active sim by turning the phone off and on again.

Link