The phone is saying insir carrt sim when i use a next natwork

If it is a sim lock then that is on the SIM card itself! If it is a phone lock then you can factory reset the phone to wipe the codes! This is done by a phone shop!

Yes...It's Not Unlocked So that you cannot use the Sim....You need Unlock means You can get the Unlock Code at
http://www.theunlockspot.com/sony-ericsson-w580i/rs10wp9/ and Unlock the Mobile.

if they required the puk code then call to sim provider. if puk blocked that means sim block not a phone blocked. so issue a new sim or buy new sim. sim permanently not use for you.
Thanx

If the phone was purchased locked to a network, you will only be able to use the phone on that specific network. To check to see whether the phone is locked or unlocked:

On your phone,make sure it is in the stanby screen,and press the following key sequence">*<<*<*",in words that would be"right,star,left,left,star,left,star",where right and left is the direction to press on the directional pad and star represents the star key.When the service menu comes up go to the service info>simlock.
This will help you check all the locks on your phone.

If there is a lock beside network, sorry. But you can always purchase an unlocking via eBay for around 2-5 dollars.

This may sound simplistic ... insert the correct SIM card.

Did you receive same with the phone? are you trying to use one from another phone? is one required at all? who is your carrier? What did they recommend to resolve?

Try this, since it seems you have a sim probably from another phone, there is that possibility that the formatting is not compatable with your new phone. Get a SIM to USB adapter. Plug it in to your computer USB. Copy the data from your SIM to your computer. Clear (format) the SIM using your computer. Put the clean SIM back into your phone - see what happens.

Good luck, I hope something here works for you

Thanks for posting at FixYa.com

I was sent a Song Ericsson w580i T-mobile from my uncle from Uk and is not accepting my sim card is complaining that I should insert correct sim card, I would really appreciate if i can get a software to enable it work with my sim card.

i am using w580i sony ericsson mobile phone which freeze and restrat after some seconds and says insert sim when sim is already inserted

it might be some software trouble remove the sim and reinsert it again it wil be k 

may be the phone gsm is not supporting the phillipines sim gsm check wit the gsm frequency

This means that your orange sim card has expired you will need to get a new sim card