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If you wish to clear your phone, open the Settings app and scroll down to Apps. Select ‘Show system apps’ from the drop-down menu in the upper right corner, then go through and choose ‘phone’ (you know, that little green phone app). Then go into it and select Storage; there you’ll find a button labelled Clear Data. To erase your number, go into System Update under Phone > Storage.
how to delete an unsaved number from your call log
How to delete unknown contacts permanently from contacts list and gmail
Go to Settings/Applications and choose “Show System Apps” in the menu. Locate Contact Storage in the list and open it. Select “Storage,” then “Clear Cache and Clear Data.” Make a point of saving your contacts.
The unsaved number feature is designed to find numbers that aren’t in your Contact List and alert you when an incoming call might be a nuisance call or spam.
Your address book is where WhatsApp saves all of your contacts. There’s no option to modify the Select contact screen on your own. You must remove a person from your phone’s address book, regardless of whether they’ve been blocked or not, in order to remove them from the WhatsApp contact list.
From the right side of your WhatsApp app, tap on the three-dot menu button. Select “Favorites” from the drop-down menu that appears below. To pull down a list of favorite contacts, tap and hold with your finger on the screen until all of them have been listed. Your contact list will be refreshed if you switch over to WhatsApp. Any hidden or deleted contacts will be restored, and your favorites will be sorted alphabetically.
Tap the overflow symbol in the top-right corner (as shown here) Select “View linked contacts” from the drop-down menu. Unlink and unlink again after that, then return to delete your contact without losing those you didn’t want to keep.
There is no default option to find out who viewed my WhatsApp profile on Whatsapp. There are a few WhatsApp profile viewer applications available in the market that claim to be able to reveal who has visited my WhatsApp profile, but none of them are helpful.