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iOS Apps Updated Apr 25, 2023

NFCWriter XS: Access iPhone NFC Chip on iOS 15 - iOS 16

Promotion image of NFCWriter XS article.

Apple has limited the capabilities of the NFC chip on your iPhone. However, by installing an app like NFCWriter XS, you can fully unlock its advanced features. This app is compatible with jailbroken devices and offers new functionalities such as the ability to open hotel room doors. It supports Phone 6S or newer models on iOS 10 – iOS 16.

Add NFCWriter XS Repo to your package manager.

What is NFCWriter XS?

NFCWriter XS is a powerful application that allows users with jailbroken iPhones to maximize the potential of their NFC chip. With this app, you can effortlessly scan NFC tags, credit cards, and MRTD documents (such as passports and ID cards), or even emulate hotel room cards to conveniently open doors. NFCWriter XS is compatible with iOS 10 through iOS 16.

Upon installing NFCWriter XS on your iPhone, a new icon will appear on your home screen. This feature-packed app offers numerous functionalities, including the ability to read the most common tag types, read, write, copy, and format tags, as well as read and write NDEF messages. Additionally, NFCWriter XS allows you to read the full memory of tags, making it a highly versatile and efficient tool for managing and interacting with NFC tags.

NFCWriter XS can also be used with high-frequency NFC tags (13.56MHz) due to the limitations of iOS devices. However, low-frequency RFID tags are not supported. The app is compatible with various tag types, including ISO 14443, Mifare, ISO 15693, and ISO-DEP, among others. With NFCWriter XS, you can take full advantage of your iPhone's NFC capabilities.

Two iPhone screens showing NFCWriter XS on iOS.

With NFCWriter XS, users can easily display information about their tags, including details such as the manufacturer, tag type, serial number, ATQA, SAK, memory size, and more. Additionally, the app allows users to perform actions based on the contents of their tags and manage and save their tags for future use. NFCWriter XS for iOS 10 – iOS 16 even enables tag emulation with UID and NDEF message emulation through the ISO-DEP protocol.

The emulation feature of NFCWriter XS allows users to emulate a tag's UID and include NDEF messages. However, it's important to note that the app cannot emulate the entire tag's memory or encrypted information. As a result, the emulation feature may or may not work when attempting to emulate a security tag, such as door-opening tags.

Moreover, the latest version of NFCWriter XS for iOS 15 includes a new option that enables users to read EMV cards such as credit and debit cards from popular providers like Visa, Mastercard, AMEX, and Maestro, among others. Additionally, the app also allows users to read MRTD documents, including passports, ID cards, and driver licenses that contain an NFC chip.

Assign Activator actions to be performed when a specific tag is detected in the background, send commands manually to tags (Advanced Users), and serve a tag from an iPhone to a remote iPhone and emulate it remotely. NFCWriter XS is available for purchase at $3.99.

Two iPhone screens showing NFCWriter XS Tag Emulation Mode and installed files.

NFCWriter XS for iOS also includes several customizable settings to enhance your user experience. These settings include the ability to enable continuous scanning, autosave NDEF records, and autosave tags. Additionally, users can choose to receive a prompt before launching an action, display emulation, and view the last scan log. The app also provides an option to manage saved records and tags, offering users greater control over their NFC interactions.

Moreover, you can restart the NFCD daemon directly from the app settings pane. It's worth noting that NFCWriter XS 3.2.106 operates on a driver level and doesn't solely rely on Apple's NFC framework, demonstrating the developer's extensive research and commitment to providing users with the best possible solution to access the iPhone's NFC Chip.

Alternatively, you can install another tweak like Aemulo offering similar features to NFCWriter XS. Aemulo also offers the ability to add cards to Wallet, so you can invoke them from the lock screen. Aemulo tweak supports all iPhones running iOS 13+ on unc0ver or checkra1n.

Add Repository

NFCWriter XS tweak can be installed through the private Limneos Repository. Add NFCWriter XS Repo to your list of Cydia Repos and download the NFC Chip reading and writing tool for your iPhone. NFCWriter for older devices is available via BigBoss Repository. Recently, Limneos updated the NFCWriter XS tweak and now it works with Fugu15 Max and Dopamine.

To install NFCWriter XS tweak on your iOS device, follow these steps:

  1. Open the Cydia app from the Home Screen.
  2. Tap on the Sources tab, then select Edit.
  3. Add the following repository URL: http://limneos.net/repo
  4. Cydia will automatically refresh packages available in the repository.
  5. Search for NFCWriter XS and install the package.
  6. Restart the Springboard to add the app icon to the Home Screen.

For added convenience, you can quickly add the repository to your preferred package managers (Cydia, Sileo, Installer, Zebra) by using the quick links provided at the top of this page. With just one click, you can easily add the repo to download NFCWriter XS tweak for iOS 15.

Elias Limneos is a very productive iOS tweak developer. In his private repository, you can find many amazing tweaks for your device such as AutoAnswer XS, AquaBoard X, SmartTap X, VoiceChanger X, AnswearingMachine X, BioProtect XS, CallBar XS, and AudioRecorder XS.

What's new

  • Updated NFCWriter XS to version 4.0.100.
  • Added support for rootless jailbreaks such as Fugu15.
  • Added support for iOS 15 and iOS 16.
  • Compatible with Palera1n and XinaA15 jailbreaks.
  • Fixed tag type detection.
  • Added proper dark mode support.
  • Fixed some issues on iOS 14.4 and newer.
  • Fixed a substitute crash issue.
  • Added iOS 14 support.
  • Improved EMV card recognition.
  • Removed Fix Scanning issues option for newer devices as it could be used unnecessarily.
  • Added Mifare Ultralight (Read/Write/Read Memory/Format) support.
  • Fixed an issue with some devices not emulating the correct custom UID.
  • Minor iPhone 6S fixes.

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