Want software free version

Ya , sure to unlock your mobile phone many methods are there , like codes, software, cables, hardware & calculator.............Among all these methods i prefer you to unlock your mobile with codes, why i am saying codes means to unlock your mobile with codes are simple & easy way, just follow the instructions and get the unlock code from this site www.superunlockcodes.com/sony-ericsson-w910i/rs12wp9 , just give your IMEI number , country & network lock surely you can get the unlock code for your sony ericsson model mobile from the network lock.............Wish you all the best...........

First connect your sony erricsson w910i phone to pc(USB Cable, Infrared or Bluetooth connection.)
Donwload the pc suite -->click here to download .

Download the file to a temporary folder on your PC.

It is recommended that you uninstall any previously installed version of the Sony Ericsson PC Suite.

Execute the downloaded file.

To Unlock the Sony Ericsson W910I Model mobile from the Network lock You can use the Unlock Code You can get the Unlock Code at
http://www.wickedunlock.com/sony-ericsson-w910i/rs11wp9/ and Unlock the mobile following the Free Unlocking Instructions Below............
Sony Ericsson W910i Unlocking InstructionsWarning : Do not enter any wrong unlock codes on your Sony Ericsson W910i mobile phones. If you enter over a certain amount of wrong unlock codes on your Sony Ericsson W910i mobile phone, your phone may get hard locked and sometimes become unusable.
1 - Switch ON your Sony Ericsson W910i without any SIM Card,
2 - Press the left arrow key/button once,
3 - Press the button * twice,
4 - Press the left arrow key/button once,
5 - The message "Personalize with MNC2" will appear, (or you will have displayed an unlock menu, select the lock you want to unlock)
6 - Enter the Unlock Code.

If your Sony Ericsson W910i does not have a left arrow button/key(e.g. Sony Ericsson W950i) and on a few phones(not all) that have a "JOGDIAL" you must press the "down arrow" key/button instead of the "left arrow" key/button for step 2

format

The phone lock code protects your phone against unauthorized use if it is stolen and the SIM card is exchanged. To be able to switch the phone on, you need to enter the four-digit phone lock code. The Sony Ericsson default phone lock code is '0000', but you can change this to any 4-8-digit personal code. When you buy the phone, the phone lock is by default turned off.
Note: For security reasons, your operator, retailer or Sony Ericsson Contact Center cannot retrieve the lock code through the phone or the network. If you forget the code, locked phones must be sent to a service centre.

Yes there is.
Hope I helped Dr Reed

PC suite is the same for all phones (universal)... Just get the latest version from http://www.sonyericsson.com/cws/support/softwaredownloads/detailed/pcsuite/w910i?cc=au&lc=en
Otherwise check out the following

http://www.filebuzz.com/findsoftware/Free_pc_suite_forSony_Ericsson_W910i_Anti_Virus/1.html

u must be installing a software version which dont suites the phone, plz download a suitable version for the specified phone

just go on menu open general settings ang do master reset it'll solve ur prb

install the pc suite software then using the usb cable and connect the phone to the pc via the usb cable then select transfer file on your phone.