What are the steps that can be taken if your Gmail is not working on your iPhone
When a particular app on your phone starts to create a problem, the first step that a user does is to check the internet connection but when s/he gets to know that other apps are working fine, then that is the problem.
If your Gmail not working on iPhone, then you can follow these steps:
Soft reset your iPhone:
§ For this, press and hold the side button and the volume down button simultaneously.
§ Remove the button when the slide to power off appears on the screen.
§ Drag the power off slider from the left to the right to turn off your iPhone and wait for half a minute.
§ Then you can press and hold the side button again until the logo of Apple appears.
Quit and restart the Gmail app on your iPhone:
§ Swipe your finger in the upward direction on your home screen and then pause in the middle.
§ Swipe either to the left or right and look for the Gmail app preview.
§ After doing this, swipe it up to close it.
The users can take the steps mentioned above to open Gmail on their iPhone.