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Delete multiple contacts at once
Now tap the menu button at the top left part of the program to view the main menu. Then tap the “Organize Contacts” option, followed by the action you wish to take on the contacts, e.g. delete, share, etc, as shown below. You can decide to select all the contacts at a go or in batch mode.
On your Android phone or tablet, open the Contacts app . Select an option….Delete contacts
Select the contacts you want to delete, holding down the Control button to select more than one at a time. Then either hit the delete key on your keyboard, or click the settings button on the lower left and pick delete.
Go to Setting/Applications /Choose in the menu “Show System Apps”. Look up in the list “Contact Storage” open it. Choose “Storage”, Then “Clear Cache and Clear data”. Don’t forget to back-up your contacts.
Part 1: How to Delete Contacts on Android Device Manually
iPhone stores contacts in the location set by Settings → Contacts → Default Account. New contacts are stored on the internal storage of the device, and then synchronised with the account selected here. This can be iCloud if activated and selected. Contacts can be imported from the SIM, but not saved to the SIM.
Tap on the contact you want to delete. Tap edit in the upper right corner. Swipe all the way down to the bottom of the screen. Tap Delete Contact.
Erase all SIM card data from the Contacts or Messages app.
Removing a SIM card from iPhone or Android doesn’t erase data from the phone, rather the phone will be offline. That is to say that the phone will display no service, and you can’t make calls, receive calls or receive messages. No internet services on your phone unless you connect to a Wi-Fi network.
There is a risk – simple deleting or resetting can not really erase the data, SIM card data recovery software can make deleted data recovery possible. Therefore, you need to rely on a professional data eraser tool like this Android SIM Card Eraser (Windows/Mac). With it, you are free to fully wipe out Android SIM card.
Therefore, it is really important that you handle a SIM card with care, especially when it contains very important information. If you touch that and your hand happened to be wet, having some chemicals, or rough, it may damage the surface of the chips and will lead to the SIM card not functioning properly anymore.
It does not matter if you are using an Android or Apple (AAPL) – Get Report phone. The SIM card has enough memory to typically store up to 250 contacts, some of your text messages and other information that the carrier who supplied the card can utilize.
One last thing before you perform a factory reset: it’s time to remove your SIM card if you have one. Removal of the SIM card does not affect the reset process. So, even if no SIM card is installed, the iOS software including the reset process still works normally.