NEC E122 master code?

Do you mean unlock code?. if so you can get unlock code for your Nec 804n here Simpleunlocking.com and you can get get free phone unlock instructions from mobileunlockguide.com . It's very useful do your step by step unlocking.

You can unlock your Sgh i627(Samsung I627) by using unlock code.To get this code at low cost visit the site Simpleunlocking.com here you need to specify the IMEI number of your Phone,Country,Network provider to which it is locked.Then they deliver the unlock code to you through mail.After getting the code you can follow the the step by step instructions from Mobileunlockguide.com .Then,you can able to use freely any GSM network SIM card on your Phone.

To unlock Samsung sgh i627 from network lock you need to use Unlock Code. To get the unlock code Contact your service provider.They will give unlock code only if your contract period is over. If you are still under contract you can get unlock code from online vendors like Onlinegsmunlock.com .There you have to give your Country and current Network name along with your IMEI number to get unlock code.They will give you unlock code along with instruction on how to unlock.Follow the instruction correctly and unlock your phone.

get it unlock, or flash but you will loss all data or informations on it.

You can get the PUK code from the Service Provider........

There isn't - you have to call AT&T in order to get it. There is an after hours line that your local store can use if regular customer care is late.
http://yourmonstersofmobile.com/how_to_for_cell_phones/pin_blocked_call_provider_and_puk_codes.html

you will have to ask your carrier for an unlock code. Or search on the internet for a paid unlock code.

Call your carrier and they will tell you a code to unlock it. Free of charge most carriers offer.

Hi

The puk code is sim card spesific it comes with the sim card when you get it or you can get it by calling your phone service provider of the sim card to get the puk code.
if you have entered the puk code wrong too many times you will make the sim card useless and you will have to contact your phone service provider for a new sim card, it will probably cost.

hi! Get unlock code from here:
www.instant-unlock.co.uk/acatalog/NEC_Unlock.html - 23k -
or
www.foneszone.co.uk/unlock_info/NEC.php - 422k -
or
www.unlockitnow.com/NEC/ - 60k -