Can you clear a SIM card?
This includes wiping SIM contacts, the SMS archive, the list of last dialled numbers, own numbers stored on the SIM card.
To clear SIM card memory, you have to manually go through each entry and delete it.
There is another risk – some phones do not delete the SMS, making deleted SMS recovery possible.
Sletter en tilbakestilling til fabrikkstandard SIM-kortet?
Since a factory reset entails deleting all information stored in the device, it is essentially the same concept as reformatting a hard drive. Pre-Installed applications and data on the card’s storage card (such as a MicroSD card) will not be erased.
Can you factory reset a phone without a SIM card?
Your iPhone has the same reset process whether it uses a SIM card or is designed for CDMA networks. Even if no SIM card is in the device, you can reset the iOS software normally; apps and functions that require mobile service won’t work until the SIM card is in the phone, but the iOS software will still work normally.
Can you clean your SIM card?
Gently wipe the gold SIM card contacts with a soft cloth to remove any dust or oils. Never use any form of liquid cleaner or abrasive. If available, use a soft rubber pencil eraser to clean the gold SIM card contacts, and a soft cloth to wipe away any eraser residue.
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