Why is my back button on my phone not working?
Restart the Device
Even Android phones with a hardware back button didn't always withstand the worst software bugs. The good news is that most software bugs are resolved by restarting your phone, so start by doing that.
Why is my back arrow not working on my iPhone?
Turn Off Accessibility Text Settings
The cause of this annoying back button bug is down to Accessibility text settings. Check your settings to see if your iPhone text is enlarged or in bold. Turn those features off as we show you below and see if it fixed the problem for you.