Android Enthusiasts Stack Exchange is a question and answer site for enthusiasts and power users of the Android operating system. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

In Android 2.2 from a HTC Desire Z I am frequently finding my phone disconnected from my mobile provider.

When I select my provider from the Settings -> Wireless & networks -> Mobile networks -> Network operators -> Search networks -> <My Provider> I get the message "Your SIM card does not allow a connection to this network".

The only fix I can find is to restart my phone. Problem appears to widely affect Android phones.

share|improve this question

It appears several sites suggest preventing the phone from using 3G. I have gone into Settings -> Wireless & network -> Mobile networks -> Network Mode -> GSM only.

This appears to have fixed the issue for me. Of course this wouldn't be a solution for anybody who relies on mobile data (but my provider charges so much for data that I'm wi-fi only).

share|improve this answer

Another cause of this error message is that the country in which you are may require your IMEI to be registered with the government - if you have already registered it check whether it has been removed from the relevent list (Turkey in my case so I checked and found it had been removed) and contact the relevent government official to get it put back on.

I don't understand why the error message refers to the SIM card - it misled me and wasted hours of my time as the problem in my case was nothing to do with the SIM card. I assume this is an Android error message - I think the message should be improved and presumably mention "IMEI" but I am not sure exactly what it should say. Perhaps others in this forum can suggest a better error message.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.