Help HTC One change network

[serbusfish]

I have a HTC One M7 that was previously a contract phone from EE, the contracted ended a while ago and I want to use a 'Three' pay and go SIM in it. I have got an unlock code to change the phone to Three, but I dont know where to use it, and if I try to select '3' in the phone settings it wont work...

 

[mikedt]

I think it should request the unlock code when you insert the other network's SIM. Have you actually tried using the 3 SIM with it yet?

 

[serbusfish]

I think it should request the unlock code when you insert the other network's SIM. Have you actually tried using the 3 SIM with it yet?

Yes I have done, that's what the lock code instructions said would happen but nothing popped up when I started the phone.

 

[serbusfish]

I think it should request the unlock code when you insert the other network's SIM. Have you actually tried using the 3 SIM with it yet?

Its fine the problem is sorted, turns out the SIM wasn't activated... they failed to tell me it would need activating during the live chat... cheers anyway.