How to enable and use NFC on Xiaomi Redmi 9C: a complete guide to life hacks

Xiaomi Redmi 9C is equipped with NFC, but many owners are unaware of its capabilities. Unlike flagship models, where the chip supports contactless payments and work with tags out of the box, there are nuances here. This article will help you understand how to properly activate NFC, configure it for payment with cards and use it to automate tasks - even if your firmware does not support Google Pay.

It's important to understand: Redmi 9C The budget segment is the budget segment, and NFC-The chip has limitations, for example, it's not certified for Google Pay in most regions, but that doesn't mean it's useless, but we'll show workarounds, alternative applications, and non-obvious use cases, from file transfers to smart home management. Let’s also see why sometimes. NFC Refuses to work and how to fix it without contacting the service.

Check for NFC on your Redmi 9C

Before you set up, make sure your smartphone is actually equipped. NFC-In the Redmi. 9C The module is not present in all modifications - it depends on the region of sale and firmware version.

To check:

  • πŸ“± Open the Settings. β†’ The phone. β†’ Full specification. Scroll down to Wireless Networks, there should be a paragraph. NFC.
  • πŸ” Enter the request in the search for settings NFC. If you don’t have the results, there’s no chip in your model.
  • πŸ› οΈ Use the Avira app NFC Checker (free on Google Play) will show not only the presence of the chip, but also its specifications.

If NFC is not available, but your model specs say it is, it may be the firmware problem, and then flashing it to a global or European version of MIUI will help (more on this in the problem solving section).

πŸ“Š You've tried using it before. NFC on his smartphone?
Yes, for payments.
Yes, for file transfer.
Yeah, for the smart home.
No, I haven't tried it yet.
I don't have NFC.

NFC Activation: Step-by-step instructions

You can turn on NFC on Redmi 9C in two ways: through the Quick Settings Panel or the Parameters menu. Let's look at both.

Method 1: Through the notification panel

  1. Swipe your finger down to open the notification panel.
  2. Click on the icon. ⚑ (panel-editing).
  3. Find the NFC list and drag it to the active area.
  4. You can now turn on/off NFC with a single touch.

Method 2: Through settings

  • πŸ”§ Go to Settings. β†’ Connections and sharing β†’ NFC.
  • πŸ”„ Activate the switch. NFC.
  • βš™οΈ (Optionally, click Additional to configure modes (e.g, HCE contactless).

β˜‘οΈ Preparation for use NFC

Done: 0 / 4

Once activated, the chip will consume a minimum amount of power (about 1-2% of the charge per day when used actively).If you do not plan to use NFC constantly, it is better to turn it off - this will prolong battery life.

Configuring contactless payments

The biggest disappointment of Redmi owners 9C β€” Lack of support for Google Pay due to uncertified NFC-But there are alternatives:

Payment methodSupport for Redmi 9CConditions requiredCommission
Samsung Pay❌ No.Only for Samsung devices0%
Apple Pay❌ No.Only for iPhones0%
Mir Payβœ… Yes.Map of the world, an app from Google Play0%
Tinkoff Payβœ… Yes.Tinkoff card, bank app0%
SberPay⚠️ Partially.Root or Magisk required0%

For most Russian banks, Mir Pay or Tinkoff Pay is suitable: install an application, link the card and follow the instructions, the main condition is that the terminal must support Mastercard Contactless or MirAccept.

⚠️ Note: Some banks block card binding to non-certified devices. If there is an error, try adding the card via the bank's web version or contact support to ask for an unlocked restriction for your account. IMEI.

Work with NFC-tagging and automation

One of the most useful uses of NFC is to automate routine tasks with tags, such as:

  • πŸ”Š Enabling silent mode when touching the label on the desktop.
  • πŸ“Ά Automatic connection to the Wi-Fi guest network.
  • πŸ”¦ Starting a flashlight or camera with one touch.
  • πŸ“± Sending. SMS or call to a given number.

This will require:

  1. NFC-tags (you can buy on AliExpress or in electronics stores, are worth it) ~50-200 β‚½ piecewise).
  2. NFC Tools (free version is quite functional)

Instructions for setting:

  1. Open NFC Tools and select Write β†’ Add a record.
  2. Specify the action (e.g. Wi-Fi β†’ Connect to the network).
  3. Enter network data (SSID, password).
  4. Put the phone to the tag, the data will be recorded.

Now, when you touch the tag, your smartphone will automatically connect to Wi-Fi. Other actions will be configured similarly. For complex scenarios (such as running multiple commands), use Tasker in conjunction with the NFC Task Launcher plugin.

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If the tag doesn’t work the first time, try holding your phone to the other edge of the tag – the sensitive area may be displaced.

Transfer of files over NFC (Android Beam)

Android Beam allows you to transfer files, contacts or links between devices with NFC. On Redmi 9C, it works, but with restrictions:

  • πŸ“ The maximum file size is 1 GB (in practice it is better not to exceed 500 MB).
  • ⚑ Transfer speed is about 400 KB/s (slower than Bluetooth, but more convenient for small files).
  • πŸ”„ Both devices must be supported NFC and have Android Beam enabled.

How to transfer the file:

  1. Turn on NFC on both devices.
  2. Open the file (photo, document) or contact you want to send.
  3. Combine the back of your phones (NFC chips are usually located next to the camera).
  4. Wait for the beep - the transmission will start automatically.

If the transmission is not started:

  • πŸ”„ Reboot both devices.
  • πŸ“± Make sure the unlock screen is open on the receiving phone.
  • πŸ› οΈ Check if the transmission is blocked by the cover (especially metal).

Smart home and other use cases

The NFC on the Redmi 9C can be integrated with smart home systems even if the chip doesn’t support all protocols.

1. Smart lamp management

With the help of tags and the Yandex Smart Home or Mi Home application, you can configure:

  • πŸ’‘ Lights on/off when the door tag is touched.
  • 🌑️ Change in air conditioning temperature.
  • πŸ”’ Activation of the "Nobody" mode (turns off all devices).

2. Quick launch of the navigator

Write down a command to run Yandex.Navigator or Google Maps with a pre-painted route (for example, "house-work"). Attach a tag in the car and you no longer have to manually enter the address.

3. Automatic data synchronization

Set up a label on your desktop for:

  • πŸ“₯ Starting Google Drive Syncs.
  • πŸ“§ Sending emails with template text (e.g., "I'm in place").
  • πŸ”„ Weather and schedule updates for the day.
How to check the compatibility of the label with a smart home?
Most labels work on frequency. 13.56 MHz (standard) ISO 14443). For a smart home, labels of the type are suitable NTAG213/215/216. Before buying, check if your system supports NFC-For example, in Mi Home, it works through Automation, and in Yandex Smart Home, it works through Scripts".

Solving NFC Problems on Redmi 9C

If NFC doesn't work or doesn't work, there can be a variety of reasons, from software failures to hardware constraints, and the cases and ways to fix them.

Problem.Possible causeDecision
NFC is not includedThere is no support in the firmwareUpdate MIUI to the latest version or upgrade to the European/Global version
He doesn't read tags.Chip weak signal.Try to hold your phone to the other edge of the tag or use tags with greater sensitivity (NTAG216).
Android Beam is not working.Disabled in settingsEnable Settings β†’ Connections β†’ NFC β†’ Android Beam
Payments don't passUncertified chipUse alternative applications (Mir Pay, Tinkoff Pay) or get root rights to emulate a certificate

If the NFC has stopped working after the update:

  1. Reset network settings: Settings β†’ System β†’ Reset β†’ Network settings reset.
  2. Clear the cache of the NFC Service app in Settings β†’ Apps β†’ All apps.
  3. Install the Magisk Module "NFC Enabler" patch.

⚠️ Note: Some versions of Redmi 9C (particularly Indian) NFC-The chip is locked at the firmware level, and in this case, only the flashing to the European version will help. MIUI With the unlocked bootloader, look for the unlock instructions on the forum. 4PDA model-themed.

FAQ: Frequent questions about NFC on Redmi 9C

Can I use Google Pay on Redmi 9C?
Officially, no, because NFC-chip is not certified for HCE-There are workarounds, however: Use the alternatives: Mir Pay, Tinkoff Pay, SberPay (the latter may require root).Install Magisk and Google Pay module SQL Bypass (not all firmware) Link the card to Samsung Pay via emulation (requires technical skills) Note that the bank can block the card if fraud is suspected.
Where exactly is it located? NFC-chip 9C?
Chip. NFC redmi 9C It's located at the top of the back, next to the main camera: πŸ“ Light bulge under the body (if you remove the cover). πŸ” Sticker with the symbol N on the battery (visible when disassembling). πŸ“± Testing with an app NFC Check, it's going to show you the maximum signal area. When you touch tags or terminals, you're going to bring your phone in with that part.
How to check if NFC works without tags?
There are several ways: Download NFC Tools and select Reading β€” bring your phone to another NFC device (like a credit card). If the chip works, you'll see the card information. Use NFC Checker, the app will show the status of the chip and its characteristics. Try transferring the file via Android Beam to another phone. If none of the methods work, the chip is either disabled software or missing.
Is it true that NFC is a big battery drain?
No, it's a myth. NFC-The chip consumes energy only when it is in active use (for example, when touching a label or terminal). ~0.1-0.3% It's comparable to the light sensor, but if you notice an abnormal flow rate, check it: πŸ”‹ Are there any background processes associated with NFC (For example, com.android.nfc in the consumption list). πŸ“± Are there any viruses that disguise themselves as NFC-Services (check out Malwarebytes).
Can I use Redmi? 9C how NFC-door-card?
Technically, yes, but there are nuances: Your access control system must support card emulation (not all terminals can do this), you'll need an app like NFC Card Emulator and root rights to write data to a protected area of the chip. Some protocols (such as MIFARE Classic) don't emulate on the Redmi 9C because of the limitations of the chip. Most office systems are easier to use the original card or a special key fob.

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NFC on Redmi 9C isn't just about payments. Even with a limited chip, you can automate routine tasks, manage your smart home, and quickly share data, and the key is to set up your firmware and find compatible applications.