When i insert sim card on my samsung m200 the phone trips off.

SOURCE: insert correct sim card

i you should try a software update, you can get this from www.sonyericsson.com/support. hope this helps

SOURCE: Insert SIM Card

My phones displays the message Insert SIM Card even though it has the SIM Card.

SOURCE: The phone will display no SIM card inserted

Format ur Mobile -

SOURCE: Wish to insert sim card in Samsung SCH-U350 smooth

You were saying that the phone does not have a SIM card slot. You need to double-check it. If the phone does not have a SIM card slot, you need to bring it to a repair technician to put a SIM card slot, unlock the factory code so that you could use it in other country.

But doing it would void the warranty cause it's against the contract of Verizon and Samsung company.

Have a great day!

Testimonial: "Got the solution I needed"

SOURCE: My Samsung Mobile SGH M200 has Network lock due to

To get the security code to unlock the cell phone from the current cell phone provider so you can use it with a different phone provider, Please click on this link and follow my instructions :-
http://www.fixya.com/support/r4049238-unlock_cell_phone
If your phone provider does not help you then this WEB site it provides security codes for a small price.
http://www.mobileunlockstore.com/?gclid=CKDb2_y2558CFSlJagodxBkDHw
Try this WEB site also - Unlock Free
http://www.unlock-free.com