Sim Error - Nokia Lumia 900

I used all my 32 attempts for PUK unlock code. Now I have this message when I start the phone. Please help. How can I insert an unlock code?

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unlocking 02 XDA mini S

Hi Guys
Can anyone PLEASE help me unlock my phone. it prompts for PUK code when I insert a different sim.
I appreciate the help,
Jonny
There is a unlocker on this very page it enables you to unlock your o2 mini. But PUK code, is when you ahve entered the sim card pin in correct two many times. It should come with your sim card like my german contract phone. If not you can get it from 02, via ringing them up. There is a number on there web site of how to get your puk code.
Then you have to choose a new pin.

Hi Guys I need help

I used that sim unlocker porgram on my Siemens sx66 now it says. Network is locked enter code any ideas.
The sim unlock app?
It must show you a code...
to unlock it...
use your sim chip and type the code
Maybe it's just asking you for a PIN code. If you remove the SIM card does the BA prompt for code again?

Entering Sim unlock code without spare Sim

I've purchased an unlock code but I don't have a Sim from another network to open the prompt. Does anyone know an alternative method for entering the code?

[Q] Lumia 900 - Invalid SIM Error

Hello,
I bought an unlocked AT&T Lumia 900. As I inserted my non AT&T SIM, it prompted me for the SIM PIN code. I got the SIM and PUK code from my Network service provider.
Then Itried all the possible combinations and exhausted 10 SIM unlock and 32 PUK attempts. Since then the phone is not accepting any SIM card. It displays SIM Error message. Is there any way I can get my Lumia to work?
Or Is the phone useless now?
Please help.
Thanks
Iceman

ZTE Max N9520 - How to insert unlock code?

Please HELP ME how to insert unlock code for unlock this smart phone.
My ZTE MAX is from Sprint BOOST operator.
Unlock code is here:
NCK/NP Code : 600914640880
SPCK/SP Code : 642193752180
I insert an unacceptable SIM card to phone, not ask me the unlock code.
Insert Tmobile SIM card, insert PIN code, phone not have signal, and in info operator write "invalid SIM card/Boost Mobile"
THX THX THX
Did you ever find a solution? I have the same problem.

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