Taking Panorama through iPhone Camera is an exciting feature of iOS 6+ but its glaring omission is that you can not turn ON iPhone’s LED flash during that process, so there would be an issue of perfect lightning which is required for capturing a bright Panorama.
Users with jailbroken iPhone 5, iPhone 4S, or iPod touch 5 can try Flashorama Cydia tweak which works with the stock Camera app and enables flash in Panorama mode.
Just download and install Flashorama via BigBoss repo of Cydia store where its available free.
After installing Flashorama on your iDevice make its settings through “Settings” app from spring board, where you will find option to Enable “Flash in Panaroma”, so just turn it ON and see its affect through launching Camera app.