My HTC got some issues. Suddenly there's no signal that my phone can accept.

Try registering on network, and the notification "our sim does not allow a connection to this network".

Have tried to on/off the phone, change from normal to plane mode and back to normal. Select the APN Name. Nothing seems to solve this.

I have tried my Sim Card in another phone, its ok. I've tried another sim card into my HTC One...also the same thing happens.

Any solutions to this problem. Kindly share.

Thanks