Remember that, in a pure hydrogen economy, the electrical generating capacity will have to approximately double because all of the energy for transportation that currently comes from oil will have to be replaced with electrically generated hydrogen. So the number of power plants will double, and all of the fossil fuel plants will be replaced.
The iPhone will reboot. Once it turns on, the default network settings will be restored. The Apple iPhone 3GS has many reset options. Wiping the network settings will reset all the current network settings to default. The Apple iPhone 3GS has many reset options.  Please let us know how we can improve this support content by leaving your comments below.
How to view and reset cellular network data usage in iPhone. You can easily see cellular network data usage of every apps and services in iPhone (and iOS in general). You also have the option to reset the usage counter for accounting and troubleshooting purposes. To see the usage, launch the Settings app by tapping on the following icon. Then tap on the Mobile Data menu. Prior to iOS 10, the menu is named Cellular. Here you can see cellular related options with cellular usage for each installed applications and services just below that.