My pantech link wont work with my at&t sim it says invalid sim

Hi, if there's a SIM Locked problem, you can solve it on Fastgsm.com for Pantech C790. There's a also a video guide available, so you can check if it's the problem you have.

If the PANTECH says Invalid sim it's locked to network...You need to Unlock it..Specify the network it's locked now,country...Then get the Unlock code
at Mobileunlocksolutions.com/pantech/rs1wp8/ and Unlock it easily..You need to specify the correct Pantech phone model also.

maybe your sim card is damaged try to get new sim (but with same number) from your service provider.

It's locked with Network? or locked with Security code?Security Lock means get the code from service provider and Reset it from Security lock of Sim!!! It locked to Network means specify the Network and Country it locked Now,then get the Network Unlock code for Pantech P7040 Link Phone at
Classicunlocking.com and Unlock it ,then use with any GHSM Network,To enter the code correct follow the Instructions below...


Pantech P7040 Link Unlocking Instructions

Warning : Do not enter any wrong unlock codes on your Pantech P7040 Link mobile phones. If you enter over a certain amount of wrong unlock codes on your Pantech P7040 Link mobile phone, your phone may get hard locked and sometimes become unusable.
1. Switch ON your Pantech P7040 Link with its ORIGINAL SIM card.
2. Type *#865625#.
3. A SIM Unlock Menu will appear, press OK.
4. Enter Unlock Code.
5. Re-enter Unlock Code.
6. Pantech P7040 Link will display Unlock Process Complete. Press OK.
7. Your Pantech P7040 Link is now unlocked.

ORIGINAL : We mean, to use the sim card that was originally given to you by your network/service provider along with the Pantech P7040 Link.

If the Phone shows Invalid Sim message means it locked to some Network,find out the Country,it's network it locked now ..then get the Unlock code from here
Onlinegsmunlock and Unlock it....Then You can use any GSM Sim card....


Pantech Pursuit Unlocking Instructions Warning : Do not enter any wrong unlock codes on your Pantech Pursuit mobile phones. If you enter over a certain amount of wrong unlock codes on your Pantech Pursuit mobile phone, your phone may get hard locked and sometimes become unusable.
1. Switch ON your Pantech Pursuit with its ORIGINAL SIM card.
2. Type *#865625#.
3. A SIM Unlock Menu will appear, press OK.
4. Enter Unlock Code.
5. Re-enter Unlock Code.
6. Pantech Pursuit will display Unlock Process Complete. Press OK.
7. Your Pantech Pursuit is now unlocked.

ORIGINAL : We mean, to use the sim card that was originally given to you by your network/service provider along with the Pantech Pursuit.

Hi, Please contact your service provider to check and ( if required ) to replace the SIM card
Regards, Jay

Your SIM card is invalid and needs to be replaced.

Check to see if you SIM card is inserted correctly or if its loose. If that doesn't work you will unfortunately have to get a new SIM card. They run, I think, about 20 bucks.

Try taking the sim card out and giving the contacts on the sim card and the phone a wipe with a clean lint-free cloth

This could be two things. The sdmicro min mem card may be incompatible or, the internal sim card in invalid or not activated.