How do you put it in? SIM-Map in Xiaomi Redmi Note 3 Pro: instructions with photos and nuances

Xiaomi Redmi Note 3 Pro

how to insert SIM-map

Unlike modern models with universal slots under nano-SIM, Redmi Note 3 Pro has its own features: a hybrid tray, support for two SIM cards or one SIM card + microSD. Installation can lead to the fact that the smartphone will not catch the network, and in the worst case – damage the contacts of the slot. In this article, we will analyze the process by steps, see the typical errors and give tips on activation of mobile communication.

If you've never worked with hybrid slots before or are afraid of damaging your phone, don't worry: the procedure is easier than it sounds. The main thing is to follow the instructions and not make excessive efforts when retrieving the tray. And for those who plan to use two SIM cards at the same time, we have prepared a separate section with the nuances of setting the priority of networks.

Preparation: What will be needed for installation SIM-map

Before you start installing, make sure you have everything you need. Xiaomi Redmi Note 3 Pro supports nano-SIM (4FF) is the smallest SIM format used in most modern smartphones. If your old SIM card (mini-SIM or micro-SIM), it will have to be cropped or replaced in the cabin of the operator.

Here is a complete list of what you will need:

• 📱 Xiaomi Redmi Note 3 Pro (off!).
• 🪨 Paperclip or special key to extract the tray (comprised with the phone).
• 📇 Nano-SIM (one or two, depending on the configuration).
• 🔍 Good lighting – the tray and slot are small, it is important to see the details.

If you plan to use two SIM cards, consider that the second SIM will take up a memory card slot, so you can use either SIM1 + SIM2 or SIM1 + microSD at the same time. This is a nuance that is often overlooked, so think ahead of time what is more important to you: a second SIM card or additional storage.

⚠️ Warning: Never use sharp objects (needles, knives, scissors) to remove the tray! this can damage the fixing mechanism or scratch the phone's body.

If you don’t have the original key from Xiaomi, any metal clip with a diameter of no more than 0.8 mm will do. Too thick a clip may not enter the hole or jam the mechanism.

Where is the slot for SIM-Maps in Redmi Note 3 Pro

In the Xiaomi Redmi Note 3 Pro, the SIM card slot is located on the left end of the case, if you look at the phone screen with the front side. This is the standard place for most Redmi models, but some users mistakenly look for it on the upper or lower edge.

To find the slot, look at the small circular hole next to the volume buttons, and that's where you put a paper clip to extract the tray, and if you hold the phone in your hands, the hole will be about the level of the middle finger.

The outside of the tray looks like a small metal plate with slots for SIM cards, it usually has markings:

• 🔢 SIM1 — The main slot (supports) 4G).
• 🔢 SIM2 MicroSD is the second slot (hybrid).

If you’re not sure where exactly the slot is, look at the phone’s case: next to the clip hole there’s usually a small SIM card icon. On some versions of the Redmi Note 3 Pro (for example, for the Chinese market), the slot can be located on the right side, but this is extremely rare.

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If you can’t find a hole for the paper clip, shine a flashlight along the end of the phone – the metal tray will reflect the light.

Step-by-step: how to remove and insert the tray

Now, to the most important thing, installing a SIM card, be sure to turn off your phone before you remove the tray, and this will prevent any disruption to the communication module.

1. Take a paper clip (or key from the kit) and gently insert it into the hole on the end of the phone. Press until you click, which means that the locking mechanism has worked.
2. The tray will extend out of the body a little bit. Pull it gently over yourself without putting too much effort. If the tray doesn't give in, don't pull harder, check if the hole in the paper clip is fully in.
3. Put the tray on a flat surface. Notice its orientation: the SIM card should be down the chip, and the bevelled corner of the card should match the angle on the tray.
4. Install the nano-SIM in the appropriate slot (SIM1 or SIM2). If you use two SIM cards, the second one is installed in a hybrid slot instead of a microSD.
5. Carefully insert the tray back into the phone before you click. Make sure it sits flat and doesn't protrude over the body.

After installation, turn on the phone and wait until it determines the SIM card. If the network does not appear within 1-2 minutes, restart the device or check the correct installation of the card.

The tray is inserted to the point and does not protrude|SIM card is chip down|The sloping corner of the SIM card coincides with the tray|The phone is turned off during installation-->

If you install two SIM cards, note that the slot SIM2 may not support 4G In some regional versions of the phone. To check this, go to Settings. → SIM-maps and mobile networks and see available network modes for each SIM card.

Frequent Mistakes and How to Avoid Them

Even with the seemingly simple procedure, many users make mistakes that lead to communication problems, and here are the most common ones and ways to solve them:

Another common problem is damage to the slot contacts, which can occur if you push too hard on the tray or use inappropriate objects to extract it. If after several attempts the phone still does not see the SIM card, check the contacts in the slot for contamination or mechanical damage, if necessary, carefully clean them with a soft brush or compressed air.

⚠️ Warning: If after installing the SIM card, the phone starts to overheat or discharge quickly, this may indicate a short circuit in the slot.

If you use a microSD with a single SIM card, make sure the memory card is formatted in a FAT32 or exFAT file system.Some cards with an NTFS file system may not be recognized by the phone.

Network settings after installation SIM-map

Successful SIM installation is only half the battle, and a few additional settings are required to get the phone online, and once the Redmi Note 3 Pro is turned on, it will automatically detect the new SIM card and suggest setting up the mobile network.

If the automatic setting does not work, do the following:

1. Go to Settings. → SIM-maps and mobile networks.
2. Select the SIM card you want to set up the network for.
3. Make sure that the mobile data switch is activated.
4. In Network Type, select 4G (preferably) or 3G if 4G is not available.
5. If the internet is not working, check the Access Points (APN) and add your operator’s settings manually if necessary.

For two SIM cards, you can set the network priority:

• 📶 SIM1 — basic SIM card for calls and the Internet.
• 📞 SIM2 — Additional SIM card for calls only (unless it supports) 4G).

If you use different carrier SIM cards, you can set the settings to determine which one will be used for outgoing calls by default, which is convenient if you have, for example, one SIM card for work and another for personal calls.

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If the phone still doesn't pick up the signal after setting up the network, try manually selecting the operator from the Settings menu → Mobile Network → Network Operators. Sometimes automatic search fails.

How to Use Two SIM Cards + MicroSD (If Possible)

One of the features of the Xiaomi Redmi Note 3 Pro is a hybrid slot that allows you to use either two SIM cards or one SIM card + memory card. Unfortunately, you can’t install SIM1 + SIM2 + microSD at the same time – you have to choose.

If you need two SIM cards and additional memory, consider the following options:

• 🔄 Use Google Drive (Mi Cloud) to free up space.
• 📱 Move some applications to the memory card (in the application settings, select Transfer to the memory card). SD).
• 🔧 Buy a dual SIM card with microSD support (such as a nano-SIM adapter with an optional slot), but this is an informal solution and can damage the slot.

If you still decide to use two SIM cards, consider the following nuances:

• ⚡ Slot SIM2 may not support 4G (depends on the phone version).
• 🔋 Battery consumption will increase as the phone will simultaneously scan the networks of two operators.
• 📵 In some regions, network conflicts may occur if operators use the same frequencies.

Check if your Redmi Note 3 Pro supports 4G On the second slot, go to Settings. → The phone. → Version. MIUI and click on the kernel version several times. In the menu that opens, select Information about SIM-map – there will be a supported network standard for each slot.

What to do if the phone does not see the SIM card after installation

If you've installed your SIM card correctly, but your phone doesn't recognize it, don't panic. Here's an algorithm to diagnose the problem:

1. Reboot your phone. Sometimes it helps to reset the temporary failures of the communication module.
2. Check if the SIM card is active, it may be locked or requires activation.
3. Remove the tray and inspect the SIM card for damage (scratches on the chip, chips).
4. Try inserting the SIM card into another slot (if you use two SIMs).
5. Update your phone’s firmware to the latest version – sometimes SIM card recognition bugs are patched in newer versions of MIUI.
6. Reset network settings: Settings → System → Reset settings → Reset network settings.

If none of these things worked, the problem could be the slot itself.

• 🔍 Examine the contacts in the slot for oxidation or contamination. Clean them with alcohol and a soft brush.
• 🛠️ Contact the service center for the diagnosis of the communication module.

In rare cases, the problem lies in the firmware of the phone. If you recently updated MIUI and then stopped working SIM card, try to roll back to the previous version or perform a reset to factory settings (don’t forget to back up the data!).

⚠️ Warning: If the phone has been repaired before (e.g., a display or battery replacement), check if the antenna plume has been damaged.

FAQ: Answers to Frequent Questions