My samsung x 426 unlock

HI what network problem are you facing in your samsung SGH-G600 mobile .If your samsung mobile is not accepting your network sim whether it is displaying messages like sim invalid ,sim lock and so on once you insert your sim in it then it mean your phone is locked to some other network provider due to this it wont accept your sim until you unlock it .You can easily unlock your phone using sites like Unlock-Zone.com they are rendering unlock code for all mobile models at reliable cost ...You first check that whether the code is available for your country and network provider .If yes then pay for it and unlock your phone ...

If your Samsung SGH-E490 phone displays an error message saying "Insert Sim card" after inserting a Sim card then your phone is probably network locked.

To unlock it,visit TheUnlockArena.com here they are providing the unlock code at reasonable cost with easy step by step unlocking instructions and unlock it.Then,you can use freely any GSM network sim.

If your Samsung SGH X426 is not providing service in Iran means it is locked to some service provider you were using before.So to use it in all networks you need to unlock your phone.
Unlocking your phone can be done with the help of SuperUnlockCodes.com where you need to mention your network and country your phone is locked to.They provide you with unlock code and free unlocking instructions.

What is your problem with your Sim card? Is your phone shows the "No Sim" or "Insert Sim" or "Sim Rejected" or "Invalid Sim" error? If it is so i am here to help you. If your Samsung SGH-E840 shows the "No Sim" or "Insert Sim" error then remove your Sim from your mobile and place it again correctly. If your mobile shows the error message "Invalid Sim" or "Sim Rejected" the your phone is locked to a particular network. To fix this problem you need to unlock it. Use unlock code to unlock your Samsung SGH-E840. To get the code you have to submit network provider, country and IMEI number of the mobile. Make sure yourself whether you have knew the network provider to which your mobile is locked, country to which the locked network belongs to and IMEI number of your mobile. If not you can find the IMEI number in two ways:
1)Go to Options>status
2)Find IMEI on the back of your mobile, behind the battery.
3)Type *#06# and press call button. It will display your IMEI number.
You can find the network provider to which your mobile is currently locked by switch off your mobile and switch on it again. A logo of the locked network will get displayed on your mobile screen. After knew all these get the code from the site Mobileunlocksolutions.com ,by submitting these to them. Unlock it yourself using unlocking instructions which is given in the site itself.

You need to configure the cell phone to your cell phone service provider's SIM card.

That may be locked to some Network You can Unlock the Mobile using the Unlock code You can get the Unlock code here
http://www.superunlockcodes.com/samsung-sgh-x426/rs12wp9/

DM3 or unlock thru codes is the only solution to unlock N86...

this message shows up when the sim card is locked... insert some other sim card and try calling.. if u can call successfully.. then u should solve the sim card problem

when i search network it say no network is available

I also have a x426 from 2003 and it wont work with the new ATT sim cards either, This is because of the Cingular/ATT merger which created a new network. The older original ATT phone must be unlocked to use a sim card from the new merged network. Try calling ATT Mobility customer service and request the subsidy unlock code. They are required to give it to you upon request, but it takes several days usually to get the code. I know because I used to work at a ATT call center.