5210 sim not valid ?

[arrfa]

I've unlocked my 5210 nokia using the unlock codes , but when i put in the
T Mobile contract sim from my unlocked samsung T100 , my nokia displays "sim not valid" can anyone help me ?

[danwood76]

With DCT3 phones there are 4 SP locks
The standard code that is given out by our code gen will generate code 1

You will need the GID1 code for your operator to be able to unlock the second code

or the other option is to buy a datacable and unlock it like that

regards,
Danny