Sim unlock code - Samsung Galaxy Tab 2

As I understand from personal experience, the PUK code is only available from the service provider. You need PUK code after you entered the wrong PIN 3 times for the SIM card. Call your service provider or get a new SIM card.

There is no such thing as a free imei unlock code. If you need to unlock the sim in your iPad. (imei is connected to they Sim card) you can ask the provider to give you a new sim card with the same number. the new card has a new imei, new pin and new Puk.

Your iPad 2 must have 3G, with a sim card. For the sim you need the pin and after 3 misses you need the puk. The puk is on the letter or card that came with the original sim card. On that letter is the pin and puk. sometimes you have to scratch away the metal layer.

If you want to unlock an iPad, with the lock code on, and forgot your pass code you have to enter the correct password that belongs to your Apple ID. It will be partially on the screen. If you really messed up, setting up security, and lost unlock code and your Apple ID password. Only Apple can help. For that you have to take iPad, invoice, Prove of your identity (Passport) to the Apple store and hope they will unlock your iPad. With iOS7 Apple mede a very good security system. And while setting up the iPad and the security, you are warned several times what to do t make sure you and only you could enter the system.
Be aware if Apple does reset your iPad, all data now on the iPad will be lost.

You'll need to contact your carrier (e.g. Verizon, AT&T) to have the SIM card unlocked.

Is your Samsung Galaxy Tab locked with any particular network?If so..when you insert other networks sim..it will show error messages like network error/invalid sim etc.I suggest you can approach your network provider and get the unlock code for your device.You can follow the free unlock instructions from Mobileunlockguide.com and enter the unlock code easily.This way you can unlock the device very easily.

HI if your samsung Galaxy Tab P1000 mobile displays sim network unlock pin .Then it mean your phone is locked to any particular network provider due to this you can't use your phone with other network sim ..To fix this you have to unlock your phone from network provider lock ..You can easily unlock your phone using sites like Mobile-Unlocker.com here they render unlock code for all mobile models at reliable cost ...

The Network Unlock Code of each Galaxy Tab is unique.You can get the network unlock code of your Samsung Galaxy Tab Gt-p1000 from Onlinegsmunlock.com .There you have to give your Country and current network name along with your IMEI number to get network unlock code.They will give you network unlock code along with instruction on how to unlock.Follow the instruction correctly to unlock your Samsung Galaxy Tab Gt-p1000.

you can get the Sim Unlock code from here
Theunlockarena.com and Unlock it from Network Lock.

check out these sites not sure on how safe they are ????
https://sim-unlock.net/simlock/Sony-Ericsson/E15i/
https://www.freeunlocks.com/unlock-SonyEricsson-E15i