Hydrogen fuel. If carried out in atmospheric air instead of pure oxygen, as is usually the case, hydrogen combustion may yield small amounts of nitrogen oxides, along with the water vapor. The energy released enables hydrogen to act as a fuel.
You may want to do this if you are experience problems with your network connections. Step One. Tap to launch Settings from your SpringBoard. Step Two. Choose General from the Settings menu. Step Three. Scroll down and select Reset from the General menu.Step Four. Tap the Reset Network Settings button, then press the Reset Network Settings button that appears below. Your iPhone will now reboot with the factory default network settings.Please follow iClarified on Twitter, Facebook, Google+ , or RSS for more Apple news, videos, and tutorials.hoose General from the Settings menu. Step Three. Scroll down and select Reset from the General menu. Step Four. Tap the Reset Network Settings button, then press the Reset Network Settings button that appears below. Your iPhone will now reboot with the factory default network settings.
Check Carrier Settings. 1  Tap your â Settings â and locate the â Carrier â and â Cellular â tabs. 2  Under the â Cellular â tab, if the â Cellular Data Network â appears, your iPhone is either unlocked by the carrier or a Software method (Jailbreak and Unlock method). 3  Eject your SIM card and shut down your iPhone.ou have an iPhone in your hands right now, It might be a ânewâ or second-hand iPhone. And you need to check if that iPhone is unlocked or not. If your iPhone is locked to a particular network, you can only use it with SIM cards from that one provider. That is what we call a SIM lock.