Network usim insert sim and please insert correct usim card

No sim card in phone After youu insert the card please reboot

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.onlinegsmunlock.com/

This is because you did not insert the correct SIM card. If you were provided with a SIM card when you bought the mobile, you can use only that SIM in the mobile. If you want to use other networks you need to unlock with the current SIM card. Unlocking can be done at www.mobile-unlocker.com within minutes.

i am using sony ericsson c510i -first inactive usim problem and next secend insert usim problem so please solution in image view

You need to purchase a network unlock code from '3'. This will enable you to put any sim in the handset.
Local markets somtimes do a phone unlock service too.

Hi,

it sounds weird that it worked before with same sim card. Generally USIM locked message means phone is locked to network and you need to unlock it with network unlock code to remove USIM locked and use phone on different network.

gsmwong

You need to type unique unlock code to remove USIM locked message.

Buy the code from FastGSM KU990 Unlocking Page

Please keep in mind you need sim card from network your phone is locked. Without it you wont be able to insert unlock code.

i had a lg u890 mobile phone that i got unlocked but it had the same proble where i swithched on my phone it used to ask for the usim code..my old phone was locked to the 3 nt/wrk i got it unlocked so i could use my 3 nt/wrk sim card or any network simcard but i used vodafone 3g sim card.the code i used with my vodafone 3g network simcard in phone when switched phone on & it asked for usim sim code i inserted code i got & it shut the phone down then on again then it wld work with vodafone no bother at all it even came up with vodafone uk etc.but i had to reconfigure the sms/text telephone number aswell as reconfigure the mms settings & numbers etc aswell as reconfigure wap settings from 3g network to vodaphones.but after i got it all unlocked & settings changed etc & inserted a different 3g network simcard ie vodaphone/orange/o2/3g sim/t-mobile/tesco sim/virgin sims & switched phone on it asked for usim code i tryed the code i have & inserted the same code i have it/they switched phone off & then back on & all network usim card worked with no problems at all.the code i have is.>>> 142358#*# thats 142358# * # all 1 item/action.once you insert that 142358#*# thats it your phone will shut down then restart up & go onto the network usim card you want to use or inserted before using code.but 1 thing tho please remember if u switch off your phone or your phone switches off as batterys run out no power u will need to insert the code again.& another thing code wont work if your phone switches off or you switch it off & plug your mobile battery charger into phone to charge your battery up on the phone & you switch you phone back on when you are charging your phone as the phone will switch on & say insert usim code if you enter the code the phone will switch off & back on again but it will still request usim code.so you will have to wait unto there is plenty of charge in the battery to take phone off charge & swithch your phone on get the usim code message insert code above phone will switch off & straight back on again & then it will go onto your prefured usim card then you can plug your charger into phone again to charge phone up.you can use your phone on charger when u have entered usim code & it switched off & on again & registered with the prefered network.i hope this is of use to you as it is to me.if you try this code & either if it works or not please can you let me knows ty.email [email protected]

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