Have to restart iPhone 5 to get 3G signal

[zen]

I've Googled a bit but can't find much info on this.

I have an iPhone 5 running iOS 7.0.4, and often when I am in an area with poor signal, I'll lose 3G reception and drop back to 1-2 bars of signal. However, often the 3G service won't come back, and I have to restart my phone to enable it again. I've noticed this a lot, as other people I am with (including those with the iPhone 5) will show me they have full 3G while my phone is showing nothing. Only a restart allows me back onto 3G.

I don't recall this happening under iOS 6, so is it a known iOS 7 bug? Or is there another fix I can try?

 

[sammy-boy]

I get this sometimes on my 4s, usually toggling flight mode on then off fixes it. Could be network specific, I had a similar problem at times with a Nexus 4 but the iPhone does seem to do it slightly more.

 

[Sceptre]

I get this sometimes on my 4s, usually toggling flight mode on then off fixes it. Could be network specific, I had a similar problem at times with a Nexus 4 but the iPhone does seem to do it slightly more.

This has happened a few times the last month on my ATT 4s, (I immediately know when Pandora wont play when I pull away from the house).

I fix it immediately by toggling "cell data" Off, then back On -