FJ Software

I can not connect SE K510i on WIN7 via USB cable. (I have had connected this phone with old PC WIN-XP).

I have installed drivers for USB (SEUD.exe file, group PC Suite 2).
I have connected phone (as phone, NO mass storage).
WIN7 shows 5 devices:
SE K510
SE USB WMC Device Management
SE USB WMC Modem
SE USB WMC Modem
SE USB WMC OBEX Interface
The phone start charging.

MyPhoneExplorer offers the "COM1 - Communication port" only.
The connection has failed - any device was not found.

Logdatei MyPhoneExplorer
************************
Programmversion: 1.8.5
Datum: út.08.07.2014

23:54:12.89 Refresh ComDescriptions...
23:54:12.89 PORT: COM1 Enumerator=ACPI Displayed=Komunikační port InstanceID=ACPI\PNP0501\1
23:54:12.89 Port 1 wird geöffnet...
23:54:12.89 Systemerror: 2 [Systém nemůže nalézt uvedený soubor.] [System can not find quoted file]
23:54:12.89 COM1 nebylo možné otevřít (Port nelze nalézt) COM1 could not been opened (Can not find the port)

Problem resolved

It was necessary to install 2nd stage of drivers (update - automatic internet search via WIN7) for listed items:
SE USB WMC Device Management -> COM5
SE USB WMC Data Modem -> COM3
SE USB WMC Modem -> COM4
SE USB WMC OBEX Interface -> COM6

Phone is connected to MyPhoneExplorer via COM3.