USSD not working

all this ussd people u tell on thing your phone is locked or unlocked or using x sim ..

Hello,

Factory unlocked iphone 5s, using the gsm sim. In the Bahamas having ussd issues.

Phone running ios 7.

Same with my iPhone 4S. I love in Nigeria and use Airtel. The funniest of it is dat USSD works perfectly fine on other carrier but Airtel. I was using d same Airtel rite from iOS 6.1.3 and was working fine until I upgraded to 7.0

USSD does not work in our brand new 5s iPhones running iOS 7.0.2. The same SIM put back into 4s running iOS 7.0.2 work fine again. There is definitely a problem.

It's the iOS7 software, but it's not hitting every iPhone. I have a BTC issued one and USSD works without a problem.

One note is that I did miss the 7.0.1 update and skipped over it?

Is your fone gevey sim OR factory unlocked ?

FYI: The update to 7.0.3 fixes the USSD issue for us (on 5s).

I find all these USSD issues surprising, as I have been using iOS 7 on my iPhone 5 since beta 2 and regularly get prepaid electricity via USSD code.

I live in South Africa and use Vodacom (Vodaphone) as my provider/carrier.

This problem is probably some or other carrier setting issue -

(I have to add that I have been using LTE dissabled since having it on drops me off the network regularly)

Still getting reports that 7.0.3 isn't fixing other phones though.