Chosen Solution
My Samsung 3g galaxy s will not let me make or receive calls or texts. Error message “no mobile carriers available" keeps coming up. Help! How can I fix this?
Is the phone blacklisted by any chance ?
Please check if Network Selection under SIM management is set to Auto-Selection. If it is set as Manual, please change it to Auto. Also check for Sending Caller ID option; if this one is disabled, please enable it. Let me know if you are still facing the same problem.