[Q] HTC HD7 'invalid sim' problem - General Questions and Answers

Hello,
I have a HTC HD7 from T-mobile USA. I have an unlock code from a website. When turn on phone with nonaccepted simcard it dosent ask me unlock code. I couldnt found how and where can I enter unlock code. On the phone icon see 'invalid SIM'. I have tried with a few diffrent card with different operator for Turkey e.g Turkcell, Avea, Vadafone. Please help me what is problem? is my phone has simlock or hardware problem? should I install other ROM?
Regards,

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and i receive it 8 number.
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a you did it the right way maybe its the simcard...
thanks for ur answer...
i just tryed another sim, but my htc tytn 2 write this:
SERVICE PROVIDER IS LOCKED, WRITE THE UNLOCK CODE....
how many times i can write the code ?? 3 times like the pin ??
and if my code is:45745205 i just write it in this way ???
i flashed rom orange rom to italian htc rom....can cause that problem ??
thanks
You have 5 tries to enter your code. Just enter the numbers as they are.
ok thanks now it works

Sim unlock doesn't work with unlock code

Hello all,
I just received my sim unlock code from my provider because my phone has a simlock.
They said in the email that I have to put in a foreign simcard, enter the code of that simcard and then I have to see a screen where I can type the simlock code.
Unfortunately that screen doesn't show up.
My HTC Sensation XE is rooted and I have Android 4.2.2 from Albinoman887.
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I may be wrong but I think this is most likely operators fault..
You could always try another ROM and see where that gets you.
After that there is always the option to go back to stock ROM.
murris16 said:
Hello all,
I just received my sim unlock code from my provider because my phone has a simlock.
They said in the email that I have to put in a foreign simcard, enter the code of that simcard and then I have to see a screen where I can type the simlock code.
Unfortunately that screen doesn't show up.
My HTC Sensation XE is rooted and I have Android 4.2.2 from Albinoman887.
Is there another way to enter the code to unlock my simlock?
Thanks in advance
Click to expand...
Click to collapse
For HTC the only way to insert the unlock code is after the phone asks for it,with another sim inside.Is a common problem not to ask for code if you have another rom installed so restoring to the stock rom should allow you to insert the unlock code

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