How to put the second in the right way SIM-Map in Xiaomi Redmi 6: a guide with photos and tips

Xiaomi Redmi 6 is one of the most popular budget smartphones of the brand, which is still actively used due to its reliability and functionality. However, many owners are faced with the question: how to correctly install the second one. SIM-So you can use a card to keep the connection from getting lost or to damage the trays? In this article, we'll look at all the nuances, from choosing a slot to setting the priority of networks.

It is important to understand that the hybrid slot in Redmi 6 involves a choice between the second. SIM-It's a microSD card and a microSD card, which means you can use two at the same time. SIM We'll tell you how to get around this limitation and what settings will help optimize the work of the two operators.

This article will be useful for both beginners and experienced users who want to double-check their actions or solve possible connection problems. All instructions are illustrated and adapted to the current versions of MIUI firmware.

Preparation for installation: what you need to know before you start

Before proceeding with the physical installation SIM-Make sure you have everything you need, first, check your type. SIM-Redmi 6 supports nano-SIM format (4FF). If you have a different size card, you will have to cut it or replace it in the operator’s cabin.

Second, prioritize slots. In Redmi 6, slot 1 (SIM1) supports 4G/LTE networks, and slot 2 (SIM2) only supports 2G/3G (depending on the region), which means that for maximum Internet speed, the main SIM is better installed in the first slot.

• 📱 Check the model: on the box or in the settings (Settings) → Make sure you have Xiaomi Redmi 6 (codename cereus) and not Redmi. 6A Redmi 6 Pro – they may have different slots.
• 🔧 Tools: Prepare a paper clip or a special key to remove the tray (usually included). Any thin metal part will do.
• 📶 Operator compatibility: If you plan to use two carriers, check if your Redmi 6 supports their frequencies. SIM2 may not catch 4G by some providers.

An important nuance: in some regional versions of Redmi 6, the SIM2 slot does not physically support 4G, even if the firmware allows it.

Step-by-step: how to insert the second SIM-map

Now, let's get to the practice, follow the instructions carefully to avoid damage to the tray or contacts:

1. Turn off your smartphone. It's a must-do step to avoid short circuits or failures in the communication module. Wait for the screen to shut down completely.
2. Find a slot for SIM-In Redmi 6, it's on the left side of the screen, and the hole to extract the tray is next to it.
3. Remove the tray. Put the paper clip in the hole and push until you click. The tray will extend a few millimeters -- gently pull it out to the end.
4. Install. SIM-Put the first one down. SIM slot SIM1 (usually marked, the second in the SIM2. Make sure that the bevelled corner of the card matches the slot angle.
5. Put the tray back in place. Put it back in before you click, make sure it sits flat. Don't put too much effort into it!
6. Turn on your phone. Once you boot the system, check for map detection in the status bar or in the settings.

If, after inclusion, one of the SIM-The cards are not defined, try it:

• 🔄 Reboot the phone.
• 📌 Carefully remove and insert the tray again (maybe the map is not completely villaged).
• 🛠️ Check it out. SIM-The card in another device – it may be damaged.

Smartphone's off.

Uses the correct size nano-SIM

Paperclip or key at hand

The tray is undisturbed.

SIM-cards are inserted with a bevelled angle forward-->

Setting up two SIM-card MIUI

After the cards are physically installed, you need to configure them programmatically, and MIUI has a separate section for this:

Go to Settings. → SIM-maps and mobile networks. Here you'll see both numbers set (if they're recognized) basic settings that you can configure:

• 📞 Names SIM-Cards: Assign each slot a unique name (e.g., "Worker" and "Personal") to avoid confusion when calling.
• 🌐 Default Network: Choose which Network SIM will be used to transmit data, calls or SMS default.
• 🔄 Network switching: Turn on the "Automatic Network Selection" option if you want your phone to choose the best operator for itself.
• ⚡ 4G-networks: if SIM2 supportive 4G, In this map, only a choice between 2G and 3G.

Please note the section "Use of the SIM-maps for..... You can set up flexibly here:

Advice: If you travel frequently, set up SIM2 You can automatically select the network, and this will help you avoid connection problems in new regions. SIM-map → Choice of network → Automatically.

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If after setting up the second SIM-The card is missing the Internet, check if the option "Limit background data" for this slot in traffic settings is activated.

Common Problems and Their Solutions

Even with proper installation, Redmi 6 users sometimes face difficulties, and consider typical scenarios and ways to fix them:

⚠️ Note: If after installation of the second SIM-If you're not seeing the first card, don't try to retrieve the tray when the device is on. This can damage your contacts!

Problem 1: Second problem SIM-map is not defined.

• Check if the card is inserted correctly (the cut corner should match).
• Clear the contacts. SIM-cards and slot with dry soft fabric (without alcohol!).
• Try swapping the cards – if SIM2 is running in SIM1, the problem is in the slot or its settings.

Problem 2: There is no network on one of the SIM-map.

• Make sure that SIM-The card is activated by the operator (sometimes it takes time after purchase).
• Check your network settings: Go to Settings → SIM-map → Select the network and select Automatic mode or manually find your operator.
• If the problem persists, try resetting network settings: Settings → System → Resetting → Network settings reset.

Problem 3: The battery drains quickly after the second SIM is installed.

This is normal, because the phone is constantly scanning the networks of two operators to reduce the charge consumption:

• Turn off automatic network search for one of the SIM-Cards (if you rarely use them).
• In battery settings (Settings → Battery), limit background activity for applications that use mobile data.
• Activate the power saving mode when the charge level is below 20%.

How to use two SIM-card and memory card simultaneously

As we mentioned earlier, Redmi 6 has a hybrid slot, which means that you can’t use two at the same time. SIM-But there are a few ways around the maps and microSD:

Option 1: USB-OTG adapter with card reader

You can connect the microSD via USB-OTG This allows you to temporarily use external memory, but not permanently. USB-C, You can’t charge your phone at the same time.

Option 2: Cloud storage

If you need a little extra space, consider using cloud services:

• 🖥️ Mi Cloud (built-in in) MIUI, gives you 5GB for free).
• 🌐 Google Drive or Yandex Disk (15 GB and 10 GB respectively).
• 📁 Dropbox or OneDrive to sync important files.

Option 3: Replacement of SIM with eSIM (informal)

Redmi 6 doesn’t support eSIM at the hardware level, but some users manage to emulate a second SIM through applications like Dual SIM Always On (requires root rights), a method that is risky and can lead to unstable communication, so we do not recommend it for beginners.

Critical information: Attempting to modify software to support eSIM voids the warranty and may result in a device "brick" Xiaomi does not officially support such changes.

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The hybrid slot in Redmi 6 is a compromise between the second SIM and the memory card. If both are critically important to you, consider buying a smartphone with separate slots (like the Redmi Note 10).

Advice on optimizing the two SIM-map

Two. SIM-The cards worked consistently and did not interfere with each other, follow these recommendations:

• 📶 Network priority: if one of the SIM It's only used for calls, so you can turn off the mobile data in the settings, and it'll reduce battery load.
• 🔋 Energy saving: in battery settings (Settings) → Battery → Power saving mode: add applications that should not work in the background for one of the SIM.
• 📞 Smart Calls: Set up Quick Answers for Different SIM-For example, for the working class. SIM You can set a template "Transfer from personal number".
• 🌍 Roaming: If you are traveling, turn off automatic roaming for the main one SIM, avoiding unexpected expenses.

For convenience, you can assign different ringtones for each SIM-This is done in the Settings section. → Sounds and vibrations → The ringing melody where you choose SIM And it's a unique signal.

If you switch between cards often, add a widget "SIM-"maps" to the main screen:

1. Press and hold the empty space on the main screen.
2. Select "Widgets."
3. Find the widget "SIM-maps and drag it to the screen.

Frequent User Questions (FAQ)