Fix: Unable to Open Contacts on Android Phone Restart Your Phone. … Clear Contacts App Cache. … Check Permissions for Contacts App. … Reset App Preferences. … Start Device in Safe Mode. … Uninstall Third Party App. … Reset All Settings. … Factory Reset.

Go to Settings > Accounts and tap on your Google account. Tap on Account sync and look for Contacts. Now, enable the toggle next to Contacts and if it’s already on, turn it off and on again.

If you can’t open contacts on Android, make sure to set the Phone app as the default one in Settings > Apps > Default apps. Uninstall or disable other dialer and contacts apps. If that doesn’t help, free up some memory, check the app permissions, or log out and log . . . Read more

The most common cause of losing your contacts is from upgrading your mobile’s operating system. Whether your phone runs on iOS, Android or Nokia’s Symbian, the manufacturer will send out intermittent software updates to refresh the phone with the latest features.

If the missing contacts are from before the 30-day limit outlined above or if you don’t have access to a PC, you can always restore previous contact backups on your Android phone. To do this, open Settings and tap on Google. Scroll down until you find Set up and restore. . . . Read more

If you’ve changed your default account settings for the Contacts app to iCloud, you may notice that some contacts that were stored on your iPhone are now missing. … Then, when iCloud backs up your iPhone again, those contacts will be added and saved.

There are several reasons behind missing iPhone contacts. It could be because your phone suddenly has an unstable network. Syncing errors on iCloud can be a culprit, too. Or, it’s probably a case of accidentally changing the group settings on Contacts.

You’ll need to go to Settings, then iCloud. Turn the Contacts toggle to the off position. … Next, turn Contacts back on, and they should be restored to your device through iCloud. See if the names of the missing contacts are there beside the numbers again.

Are you trying to add contacts in the Contacts app, or from within the Phone app? Go to Settings>Apps, tap Menu>Show System, and select whichever app you were using to add contacts. Tap Permissions, and make sure it has permission to access your Contacts. You might also have to grant . . . Read more

Restore contacts from backups Open your phone’s Settings app. Tap Google. Tap Set up & restore. Tap Restore contacts. If you have multiple Google Accounts, to choose which account’s contacts to restore, tap From account. Tap the phone with the contacts to copy.