The iPhone 7G charging system is similar to the iPhone 6s Plus charging system, but there are a few key differences.

• The iPhone 7G does not have a headphone jack, so the charging port is also used for connecting headphones.
• The iPhone 7G supports faster charging speeds up to 15 watts.
• The iPhone 7G can also be charged wirelessly using a Qi-compatible charger.

Here are the components of the iPhone 7G charging system:

• Lightning port: This is the port on the bottom of the phone that you use to connect the phone to a charger or computer.
• Charging port flex cable: This is the cable that connects the Lightning port to the logic board inside the phone.
• Charging coil: This is the coil that generates the magnetic field that allows the phone to charge wirelessly.
• Charging IC: This is the chip that controls the charging process.

If you are having problems with the charging system on your iPhone 7G, there are a few things you can try:

• Check the Lightning port for debris or damage.
• Try using a different cable or charger.
• Reset the network settings on your phone.
• Restore your phone to factory settings.

If you have tried all of these things and your phone is still not charging properly, you may need to have the charging system replaced. This is a relatively easy repair that can be done by a qualified technician.

Here are some additional details about the iPhone 7G charging system:

• The iPhone 7G supports up to 15 watts of charging power when using a compatible charger.
• The phone can be charged wirelessly using a Qi-compatible charger.
• The charging system is designed to last for the life of the phone.