Follow the given steps to Login to Instagram Account through your mobile device -
- Open the Instagram app from your mobile device.
- Tap on the icon in the top-left corner of the screen.
- Select ‘Options’ from the list of options displayed on your screen.
- Now tap on the ‘Login’ option.
- Enter your username and password and tap on the ‘Log In’ button.
for more read - https://torontobook.ca/how-to-log-into-instagram-through-different-devices/