Android Error Messages Explained

SIM Card Not Detected

Your phone cannot find the SIM card that connects you to your mobile network. Without it, you cannot make calls or use mobile data.

Phone Temperature Too High

Your phone has gotten too hot and needs to cool down. It may shut down some features to protect itself from damage.

Google Play Protect — Harmful App Found

Google's security system found an app on your phone that may be dangerous. It is protecting you by alerting you.

Insufficient Storage Available

Your Android phone does not have enough space to install the app or save the file. You need to free up some room.

System UI Has Stopped

The part of Android that shows your home screen, notifications, and buttons crashed. Your phone data is safe — it just needs a restart.

Wi-Fi Authentication Error

Your phone is trying to connect to a Wi-Fi network but the password you entered is not being accepted.

Unfortunately, Settings Has Stopped

The Settings app on your Android phone crashed. You may not be able to change settings until this is fixed.

Process System Isn't Responding

Your phone is overwhelmed and cannot keep up with everything running. This is like a traffic jam inside your phone.

Error Retrieving Information from Server [DF-DFERH-01]

Google Play Store is having trouble communicating with Google servers. You cannot download or update apps right now.

Camera Failed

The camera app on your Android phone is not working properly. This could be a temporary software issue.

Google Keeps Stopping

The Google app on your phone keeps crashing. This can affect Google Search, Google Assistant, and some other features.

No Internet Connection

Your Android phone cannot connect to the internet. You will not be able to browse the web, check email, or use apps that need the internet.

Message Not Sent

Your text message did not go through. The other person did not receive it. You may need to try again.

Unfortunately, Keyboard Has Stopped

The keyboard app on your phone crashed. You will not be able to type until it is fixed, but a restart usually solves it.

Mobile Data Not Working

Your phone cannot connect to the internet using your mobile data plan. Wi-Fi may still work.

Not Receiving Notifications

Your phone is not showing notification alerts for apps like WhatsApp, email, or messages. The settings may have been changed.

Unfortunately, [App] Has Stopped

An app on your Android phone crashed. This is very common and usually fixable with a few taps.

Google Play — Authentication Is Required

Google Play needs you to sign in again before you can download or update apps. Your Google account needs to be verified.

App Not Installed

Your phone was not able to install an app. This usually means there is not enough space or the file is not compatible.

Download Pending

Your app download is stuck waiting and not starting. The Play Store is waiting for something before it can begin.

Charging Slowly

Your phone is charging but much slower than normal. It will still charge fully — it will just take longer.

Battery Draining Faster Than Normal

Your phone battery is running out much quicker than usual. An app or setting is using more power than it should.

Screen Overlay Detected

Another app is drawing over your screen, which prevents you from changing certain settings. It is a security feature.

Fingerprint Not Recognized

Your phone could not read your fingerprint. You can always use your PIN or pattern to unlock instead.

Gmail — Sync Is Currently Experiencing Problems

Gmail cannot check for new emails right now. Your old emails are safe — new ones just are not coming through.

Couldn't Pair with Device

Your Android phone could not connect to a Bluetooth device like headphones, a speaker, or your car.

Safe Mode Enabled

Your phone started in Safe Mode, which disables all third-party apps. Only the apps that came with the phone will work.

Screen Not Rotating / Auto-Rotate Not Working

Your phone screen is stuck in one orientation and will not rotate when you turn the phone sideways. Auto-rotate may be turned off.