Complete guide to activating and using the electronic DNI on your mobile phone

Last update: 3 May 2025
  • The electronic DNI allows for digital identification and secure electronic signature from a mobile phone using NFC technology.
  • Requires a DNI 3.0 or higher, an Android phone compatible with NFC, and an official app such as MiDNI, DNIe Reader, or Cl@ve PIN.
  • With the DNIe on your phone, you streamline procedures, strengthen security, and control privacy in any digital transaction.

Electronic DNI reader on mobile phones

The electronic National Identity Document, known as DNIe , is the official document in Spain that verifies a citizen's identity both in person and digitally . This document, equipped with an integrated NFC chip , allows users to electronically sign documents, securely identify themselves in all types of procedures, and access both public and private digital services. Since its implementation, the electronic DNIe has become the cornerstone of digital identity, facilitating interaction with public administrations and private entities, and eliminating the need for physical identification documents.

The adoption of the electronic ID card (DNIe) has revolutionized identity management, giving citizens the opportunity to carry their document on their mobile phone, carry out online procedures without leaving home, and ensure security in every process. Throughout this guide, you will discover how to activate your electronic ID card on your Android phone with NFC , what requirements are essential, the advantages it offers over traditional methods, which applications to use, and how to ensure your DNIe is always ready to use, both in the public and private sectors.

What is the electronic DNI and how does it work?

Person showing his electronic ID

The electronic ID card (DNIe) is an evolution of the traditional National Identity Document, incorporating an NFC chip capable of securely storing digital authentication and signature certificates . This allows the holder to identify themselves and create electronic signatures with the same legal validity as a handwritten signature.

The main functions of the DNIe are:

  • Check the digital identity of the user in electronic services of the Administration and companies.
  • Allow the advanced electronic signature of documents, which grants full legal validity.
  • Facilitate the comprehensive management of online procedures, from official certificates to medical or banking consultations.
  • Provide an identification system safe, fast and universal in the digital realm using NFC technology.

The DNIe, whether in its physical version with an NFC chip or in its digital version through official apps, is accepted on thousands of platforms, both state and private, forming the secure identification standard in Spain.

DNI-e
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Essential requirements to activate the electronic DNI on your mobile phone

Using a mobile phone with an electronic ID

Before starting the process to activate and use the electronic ID card on your mobile phone, you must ensure that you meet a series of basic requirements, essential for the process to be successful and to avoid possible errors or compatibility problems.

  • DNI 3.0 or higher: Only ID cards issued since the inclusion of the NFC chip (check the back of the document for the NFC symbol) work for mobile authentication. If your document has a chip, it's valid.
  • Android mobile with NFC: Technology Near Field Communication It's essential for reading the DNIe chip. You can check if your phone has it by going to Settings > Connections > NFC.
  • Official compatible application: You need to install an official app on your device like DNIe Reader, Cl@ve PIN, or MiDNI, which manage authentication and reading of certificates from the mobile phone.
  • Active PIN and CAN code: Remember to have the PIN (personal signature/reading password) and the CAN code (six digits in the lower right corner of the front of the DNIe), necessary for activation and security.
  • Valid ID and updated certificates: To ensure your electronic ID card doesn't expire, make sure it's valid and the certificates haven't expired (they can be renewed at police stations).

Note! If you're unsure whether your phone has NFC or can't find the symbol on your ID, check the official electronic ID website or your smartphone manufacturer's technical support section.

Advantages of using the electronic DNI on your mobile phone: much more than just an ID

DNI seen from the corner

Having your electronic ID card on your mobile phone opens up a wide range of possibilities that go far beyond simple personal identification. Some of the main advantages are:

  • Secure digital identification: You can access public services (Tax Agency, Social Security, Healthcare, DGT, etc.) and private services (banks, insurance companies, online stores) from anywhere, without having to present a physical document.
  • Advanced electronic signature: It allows you to sign documents from your mobile phone with the same legal validity as a handwritten signature, saving time and travel to physical offices.
  • Access to online procedures and services: Request appointments, renew documents, obtain official certificates, check your census, employment history, medical history... all from your smartphone.
  • Avoid losses and blockages: If you lose your physical ID, you can quickly block the chip from the app and continue to identify yourself digitally while you process your renewal.
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Official applications to manage the electronic DNI on your mobile phone

Applications for mobile electronic ID

The government and official bodies have developed various mobile applications specifically designed to ensure maximum compatibility and security when using your electronic ID card (DNIe). These apps allow you to manage everything from reading the chip to activating certificates, digital signatures, and generating QR codes for in-person procedures.

Some of the most relevant applications currently are:

  • MiDNI App: It's the solution that allows you to carry a digital copy of your ID on your mobile phone, generating temporary QR codes for presenting in person or verifying your data with any entity. Only one ID can be associated with each mobile phone. The data is not stored on the device, but is generated in real time, reinforcing security and privacy.
  • Cl@ve PIN: An identification system created by the General State Administration and compatible with the electronic DNI. It's ideal for accessing electronic procedures and serves as an alternative when you don't have a physical DNI on hand.
  • DNIe Reader or DNIe Data Reading: Apps for reading the NFC chip and displaying document data on screen. Suitable for checking the validity of the electronic ID card and for initial certificate activation.
  • DNIeRemote: Turn your mobile phone into a DNIe 3.0 reader for use on your computer, allowing you to access e-government services from your PC using your mobile phone as an NFC interface.

You should always download these apps from the Google Play Store or, if an official version exists, from the Apple App Store . Avoid unofficial apps, as they are usually just a visual copy of the physical ID card and are not authorized to actually manage it or offer any legal guarantees.

How to activate the electronic DNI on your Android phone step by step?

  1. Download the official app
    Search on Google Play MiDNI, DNIe Reader or Cl@ve PIN depending on your intended use. Install the app and open it to begin the process. Upon accessing it, you'll need to accept permissions, choose a language, and review the terms and conditions of use.
  2. Select the authentication method
    Choose Electronic DNI (not Cl@ve PIN unless you prefer that method) to use your physical document with the NFC chip. This option allows for the most complete and secure use.
  3. Enter the CAN code and activate the NFC
    El CAN number It's located in the lower right corner of the front of the DNIe (six digits). The app will ask you to activate it and, immediately afterward, to hold the DNI against the back of your phone so it can read the NFC chip. Hold it in a stable position for a few seconds until it's recognized (you may need to move the document slightly to find the optimal reading area).
  4. Enter your personal PIN
    This is the code you use to digitally sign and that you activated when you obtained your ID or renewed your certificates. If you don't remember it, you must renew it at a police station. When you enter it correctly, the app will validate your identity and display your first name, last name, photo, and the data stored on the chip.
  5. Confirm activation and configure your profile
    The app will allow you to secure access using biometrics (fingerprint or facial recognition), create a strong password, and decide whether you want to save settings for future use. Some apps, such as MiDNI, will send a verification code via SMS to link your device.

From that moment on you can use your mobile phone as a digital ID with any organization or company that accepts the electronic ID card, sign documents, generate certificates or display data via QR code.

How do I know if my phone and ID are compatible?

To avoid problems during the activation of your electronic ID card , check these points before starting:

  • NFC chip in the ID: All ID cards issued after the NFC integration (ID 3.0 and higher) are valid. If you don't see the symbol, consult your local police station for an update.
  • NFC activated on the mobile: Go to Settings > Connections > NFC and enable it. Check that your device is compatible (virtually all recent Android smartphones include it).
  • operating system updated: Make sure you have the latest version of Android, which ensures compatibility and security in certificate management.

What procedures can the electronic DNI be used for on a mobile phone?

Person watching video on mobile about electronic ID

The capabilities of the electronic ID card on mobile devices are growing every day, allowing a multitude of procedures that previously required physical presence or more complex processes:

  • Procedures in Public Administration: Applications for digital certificates, employment history, Social Security inquiries, issuance of academic qualifications, DGT procedures, and health procedures.
  • Banking and financial operations: Identification for account opening, digital contracts, insurance, and transactions with financial institutions.
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Privacy, security, and frequently asked questions about using the electronic DNI on mobile devices

The implementation of the electronic ID card (DNIe) on mobile phones has brought with it important developments in terms of security and privacy :

  • Only you can access: The app is associated with your mobile number and requires biometric or PIN authentication. No one can activate another person's ID on their mobile phone.
  • Does not store your data: The digital ID data doesn't remain on the device. It's generated securely each time you request it and is only visible for a few seconds.
  • Control the data you share: You can show only your age of majority, minimum identification details (name, photo, document validity), or all details, depending on the requirements of each procedure.

Solutions to common problems and usage tips

Sometimes technical problems may arise during the activation or use of the electronic ID card on your mobile phone . Here are some solutions and practical tips:

  • The mobile phone does not detect the DNIe chip: Make sure NFC is enabled and try holding your ID card near different areas on the back of your phone. Cases or accessories may make it difficult to read.
  • I don't remember the PIN: Go to a police station to reset it using a documentation update station.
  • Expired certificates: They must be renewed at a police station, even if the physical document is valid.

Watch to learn: video tutorials and audiovisual resources

If you prefer a visual tutorial to understand the activation process, there are official videos and videos from tech developers that explain simply and step-by-step how to use your mobile phone with your electronic ID card (DNIe). For example, the following video from the channel " ¿Cómo de difícil? Tecnología fácil?" (How Difficult? Easy Technology) shows you the entire process in real time, ideal if you've never interacted with digital certificates or need an audiovisual explanation.

Thanks to the electronic ID card on your mobile phone , managing your digital identity and completing administrative procedures is faster, more secure, and easier than ever. If you meet the requirements and follow the detailed steps, you can sign documents, identify yourself at hundreds of organizations and companies, protect your data, and save time and travel.