
In some instances, you might have to give a buffer time to this app even after your device has cooled down. When the time period has elapsed, turn on WiFi (or data) and check if the Google Photos “Device is too Hot, unable to take a backup” issue has been fixed or not.
Keep your device in this state for atleast 10-15 minutes. Also, hit the power key once to turn off the display (each pixel matters!). Likewise, you should also turn off WiFi and Data pack as well (optional but recommended). Now go to the App Info page and Force Stop Google Photos. Then, go to your Recents Apps screen and clear all the apps from there. Hence remove it from the charging state and let it run on the battery.
First and foremost, if your device is currently charging, then heating issues are bound to arise. So keeping these asides, here are some other workarounds worthy of your attention.
Most of these apps tend to do more harm than good and also end up asking for suspicious permissions. The first thought that might come to your mind is to try and download one of those CPU cooler apps from the Play Store. How to Fix Google Photos Device is too Hot, Unable to Backup
Disable System Notifications on Android: How to. How to recover Google Authenticator codes after a factory reset?. With that said, there do exists a few workarounds that could help you rectify this issue. Furthermore, initially, it was thought that the issue is with Android 11 only, but now reports are coming from users who are running Android 10 as well, so it isn’t related to any specific OS build. So we can’t really set a parament as to what is the temperature at which you would get this notification. Now, different OEMs have a different threshold level after which it shows up the “Device is too hot” notification in Google Photos.