How do I take the back of to put my sim - Nokia UNLOCKED Lumia 620 3G Phone BLACK, 5MP 720P Camera, Windows Phone 8 WP8, , BULK PACKAGED, 2G GSM 850/900/1800/1900MHZ, 3G HSPA 850/1900/2100MHZ

Try to reinstall it from the beginning.
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Ken

Can taking out sim card while still in service put it back phone could...

Mark
Motorola Support

I'm not sure what the question is you are asking concerning a "sim card" but if it's How to put a SIM card in your cell phone you need a pin to put in the hole and it will pop open, However if your question is that your phone keeps telling you to insert a SIM card then you need to turn off your phone first and then go into the place where it's at and remove the SIM card and then put it back in and then turn your phone back on.

Try to reinstall you sim card.
If this does not work, install you sim card back into the new phone.
If the sim card works in your new phone.
The sim card is not defective.
Your a107 may not be working correctly.

Well if the sim was in another phone, you need to put it back in the other phone and transfer them to the sim, then when you put the sim in the new phone you need to transfer then from the sim to the phone.

Read your manual on how to get to the settings to transfer contacts from sim to phone.

Open the back cover of the phone, remove the battery,slip the sim card into the slot designed for the sim card. Later, install the battery,put back cover. Turn power on. That's it.

firstly turn off your phone then open the battery back cover which easy just slide then take out the battery and you will see the sim card holder take out old sim card and put new sim card then put battery back and put back cover.

You need to re-seat the sim card. Remove the battery, then remove the sim card. Put the sim card back in, you can wipe it if you like, clean the connections so to speak. The put the battery back in and your phone should work as it did before. If not, the sim card may have burned out and you need to get a new one from your carrier.

well, take the SIM out and check on the back for any damage on the gold sensors. If thats not the case, it might be a faulty SIM card. Sorry:(

okay turn your phone off take the back off ,battery and take the sim card out now put the battery back in with out sim card .. turn on. now go open sim and close sim 2... turn off...remove back and battery put sim card in slot 1 make sure its in all the way put battery and back on ... turn the phone on... give it a few minutes it should work....