On your iPhone 7/7 Plus, press and hold Volume Down and Power Button. On your iPhone 8 or later, press and release the Volume Up button then press and release the volume down button and press and hold the Side button. Now tap on Accessibility (In iOS 13 device, Settings → Accessibility.) Many iPhone users have resolved the issue by toggling AssistiveTouch OFF. Sometimes, your iPhone doesn’t go into sleep mode just because you have selected Never in the auto-lock options. To set auto-lock time, follow just four easy steps: You may clean forget to fix the auto-lock time while setting your iPhone for the first time. How to Fix iPhone Doesn’t go into Sleep Mode As we are listing here five different methods, your phone might run out of battery. Before you follow any step, just ensure that your iPhone is fully charged. We have listed a few methods to fix the iPhone doesn’t go into sleep mode. If you are also experiencing this issue, you need to fix this by following the below-mentioned methods. Many users complain that their iPhone doesn’t go into sleep mode as a result, the device drains a lot of battery. Like any iPhone user, an iPhone also needs some rest, i.e.