How to Erase-Protected NFC Tags on iPhone

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These days, NFC tags are becoming increasingly popular for a variety of purposes. They offer a convenient and secure way to store data, such as access codes, identification information, and more. However, it’s important to be aware that these tags can be erased if the wrong person gets thir hands on them. That’s why many NFC chips come with the option of an erase protection feature.

In this blog post, we’ll take a look at what erase protection is and how it works with NFC tags. We’ll also go over some of the best practices you should use to ensure your data is safe and secure when usng NFC tags.

So what is erase protection? As the name suggests, it’s a feature that prevents a tag from being erased or overwritten by an unauthorized user. It works by encoding the tag with an encryption algorithm or password that must be knwn in order to erase or overwrite the tag’s contents. This means that even if someone were to gain physical access to your tag, they would still need to know the correct encryption key or password in order to perform any changes on your data.

It’s important to note that not all NFC chips support erase protection. However, most modern chips do have this feature available and it’s highly recommended that you take advantage of it if possible. This will help keep your data secure from would-be intruders or other malicious actors who might try to gain access to your information.

When using NFC tags with erase protection enabled, there are a few best practices you should always follow:
1) Always use strong passwords for your tags – weak passwords can easily be guessed by attackers and thus put your data at risk;
2) Ensure that all users who need access to the tag have been provided with their own unique login credentials;
3) Regularly check for any suspicious activity on your tags – this includes attempts at erasing them or overwriting their contents;
4) Keep all security measures up-to-date – this includes regularly changing passwords as well as ensuring that any software updates have been installed; and finally
5) Use reputable brands when purchasing NFC tags – some lower quality brands may not have proper security features in place whih could leave your data exposed if not properly protected.

Erase protection is an important security measure when dealing with sensitive information stored on NFC tags. Following these best practices will help ensure your data stays safe and secure no matter who has access to it!

How to Erase-Protected NFC Tags on iPhone 1

Removing a Protected NFC Tag from an iPhone

In order to remove a protected NFC tag from your iPhone, you will need to first access the Settings app. Once in the Settings app, select ‘NFC & Reader Mode’ and then select ‘Erase Tags’. You will be prompted to place the NFC tag in the same location as when it was written. Once the tag is in place, press ‘Erase Tag’ and a prompt will inform you that the erasing process was a success. You can then safely remove your NFC tag from your iPhone.

The Effects of Locking an NFC Tag

If you lock an NFC tag, it will no longer be able to be rewritten or reprogrammed. It will remain in its current state and any data that has been stored on it will remain unchanged. The only way to change the data stored on a locked NFC tag is by unlocking it with the correct password or unlocking code, if one was set. Without this code, the data on the tag cannot be changed in any way.

Detecting NFC Tags on Mobile Devices

Your phone is saying “NFC tag detected” because it has come into contact with a NFC-compatible media, such as a credit/debit card. This is due to the NFC feature being enabled on your device. To prevent this from happening in the future, we recommend temporarily disabling the NFC feature of your mobile device.

The Consequences of Unintentionally Reading an NFC Tag

Your phone is trying to read an NFC tag because it has the NFC function turned on. NFC stands for Near Field Communication, which is a wireless technology that allows two devices to exchange data when they are held close together. When your phone’s NFC function is turned on, it will try to read any nearby NFC tags, such as credit cards, metro cards, or other objects that contain an NFC tag. To prevent your phone from constantly trying to read these tags, you can turn off the NFC feature in your device settings.

Unlocking NFC on an iPhone

To unlock NFC on your iPhone, start by opening the Settings app. Then select the option “Control Center”. Scroll down and tap the green plus button to the left of “NFC Tag Reader”. This will add the NFC tag reading function to your Control Center, allowing you to use it on your device. You can then put your phone close to any NFC-enabled devices such as door locks, credit cards, or other items that have been programmed with an NFC tag and have it unlocked or perform an action.

Effects of Damage on NFC Tags

NFC tags can be damaged when exposed to demagnetizing fields. This can happen when the tags are placed too close to a wireless charger, such as those used for Qi charging. When the NFC tag is placed in the operating volume of the charger, it can be exposed to a strong magnetic field which causes it to lose its magnetic properties and become unusable. Additionally, NFC tags can become damaged if they are exposed to excessive heat or cold temperatures, water damage, or physical shock.


In conclusion, it is possible to erase protected NFC tags by selecting the ‘erase tag’ function in the main menu. When the tag is placed in the correct location, you will be prompted with a success message. The memory of an NFC Chip is usually rewritable but can be set to ‘read-only’ mode if desired. Additionally, some chips also support password lock which means that only someone who knows the password can reprogram it once it has been locked.

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Sanjeev Singh

Sanjeev is the tech editor at DeviceMAG. He has a keen interest in all things technology, and loves to write about the latest developments in the industry. He has a passion for quality-focused journalism and believes in using technology to make people's lives better. He has worked in the tech industry for over 15 years, and has written for some of the biggest tech blogs in the world. Sanjeev is also an avid photographer and loves spending time with his family.