I inserted different sim cards in my sony xperia but it shows no sim card detected

Please Check the Sim Card in Another mobile.If Sim is good.please clean the SIM Slot with a Cleaning Brush.
Please Check SIM Detection App in Application Manager(All application)
If the problem again comes Contact Authorised Customer Center

Here's a link to the official user manual for Xperia Miro (http://blog.clove.co.uk/wp-content/uploads/2012/09/Sony_Xperia_Miro_Userguide_EN_ST23.pdf). On page 8 they described how to insert a microSD card into Xperia Miro.

Hi,
The Sim reader has been damaged need to replaced it.
you will have to take it to an authorized service center.

The SIM card has gold plated contacts, place the SIM card with the contacts so the line up with the contacts on the cell phone.

First All Check:
1.Confirm whether same sim card is working in other h.s or not.
2.Make sure the sim slot is o.k. only try these two.
3.If all the above steps fails, check the SIM card connector pins for damage.
if so try to get serviced.
4.if ur sim card is good then it is problum form sim card ic u have u raplace it with SMD.
u can make it jumper mean u can fix this prob with out sim card is for this contact.
5.take sim connector slight up by pin then cheak by inserting sim.
6.hot air gun on sim i.c. then cheak it.
Last Option:
IF make sure that the sim card hasn't been damamged at all sO Please You Go to Service
& Sim Office and Get the Duplicate Sim Same Your No From Office Oprator
Problem will Solved Quickly

You need to Unlock your sony ericsson phone from network lock to use with other GSM Network Sim card...Without Unlocking you can't use with other GSM Network Sim card.Get the unlock code from the site
Onlinegsmunlock.com/unlock-your-phone/rs7wp2/ and unlock it easily...............

Hello,

Try to insert another SIM card and check if the problem persist, if yes then there is some problem wiith your set.
Else, if other SIM is working then there will be some problem in the SIM which has got blocked for some reasons.

Get in touch with the service provide to get a new SIM for nominal charges.

Hope this works for your.

Pls take your time and let me know if I was able to help you.

Richee

try to insert new sim card or any other worker sim card to check whether the problem is with ur phone or sim.. and also check that ur phone in not in offline mode..

and if problem resists that shows internal problem in the mobile..

you can check it with other sim card ,if it remains the same problem ,it may be locked to particular network wont accept any sim card other than the particular network ,you can unlock it and used to other network,try here http://www.theunlockspot.com/sony-ericsson-xperia-x10-mini/rs10wp9/

try using a different sim card on the phone.