How do you put it in? SIM-map 4X: photo-instruction

Introduction: Why the Right Installation SIM-Cards are important for Redmi 4X

Xiaomi Redmi 4X — One of the company's most popular budget smartphones, released in 2017, and despite its age, the device is still in active use today thanks to its reliable "stuffing" and the ability to install two of the devices. SIM-However, many users have difficulty first installing the SIM: the tray is not removed, the card is not recognized or the phone gives an error "No network».

In this article, we will analyze not only step-by-step installation instructions. SIM-maps, but also typical issues faced by Redmi owners 4X. You will learn what type of cards the device supports, how to properly trim the nano-SIM if you have an old micro-SIM, and what to do if the phone does not see the network after installation. SIM-with a tray to avoid its breakdown.

If you have just purchased a Xiaomi Redmi 4X or are planning to change your SIM card, this guide will help you do everything quickly and without errors. Don’t miss sections about supported card formats and common errors – they will save you time and nerves!

What are they? SIM-The cards are supported by Xiaomi Redmi 4X

The Redmi 4X is equipped with a hybrid slot for two nano-SIM cards or one nano-SIM and a microSD card (up to 256 GB).

• 📱 Two nano-SIM cards (Dual mode) SIM)
• 📱 One nano-SIM. + microSD card

Important: the slot does not support micro-SIM or mini-SIM without an adapter. If you have an old SIM card, it will have to be trimmed to the size of a nano-SIM (12.3 × 8.8 mm) or replaced in the cabin of the operator. Using the wrong format can lead to jamming of the tray or damage to the contacts.

Also note the supported communication standards:

If your carrier is operating in bands not supported by Redmi 4X (such as LTE Band 20), the 4G network may not catch, in which case check the APN settings or contact the operator for clarification.

Preparation for installation: what will be needed

Before you insert the SIM card in the Xiaomi Redmi 4X, prepare everything you need:

• 🔧 Paperclip or needle to extract the tray (goes complete with the phone)
• 📱 Nano-SIM card (or adapter if you have a different format)
• 🔍 Good lighting (small tray, easy to drop card)
• 🧲 Magnet or tweezers (in case the card falls inside the case)

Warning: Do not use sharp objects (knives, needles, toothpicks) to remove the tray, which can damage the locking mechanism or scratch the phone case. If there is no paper clip at hand, take an unbended paper clip or buy a special key for the device. SIM-squats (costs a penny).

If you plan to use two SIM cards, make sure they are both trimmed to the size of nano-SIM. Also check if your carrier is blocking the second SIM from working in Dual SIM mode - some tariffs limit this feature.

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Before installing the SIM card, turn off the phone, which will prevent possible failures in the communication module and protect the contacts from static electricity.

Step-by-step instruction: how to insert SIM-map 4X

Follow this algorithm to correctly install the SIM card:

1. Turn off the phone. Press and hold the power button, then select Turn off.
2. Find a tray for SIM-It's on the left side of the phone (when you look at the screen).
3. Remove the tray: Put the paper clip in a small hole next to the tray. Push until you click, the tray will extend a little. Pull it gently over yourself.

Install. SIM-map):

• Put the nano-SIM in the appropriate groove with the contacts down.
• If you use two SIMs, the second is installed in the lower groove.
• For microSD, use the top slot (instead of the second SIM).
• Put the tray back in. Make sure it's up straight and straight.
• Turn on the phone. Wait for the download and check for the network.

Critical! Don't put too much effort into installing the tray. If it doesn't come in easily, check if the SIM cards are lying correctly. Forced pressure can break the locking mechanism.

If the phone does not see the SIM card after turning on, try:

• 🔄 Reset the device.
• 🔧 Reinstall the SIM card (it may have moved).
• 📶 Manually select the operator in the settings (Settings) → SIM-maps and mobile networks → Choice of network).

Frequent Mistakes and How to Avoid Them

Even experienced users sometimes make mistakes when installing SIM-Here are the most common ones and the ways to solve them:

⚠️ Note: If after installing the SIM card, the phone gives an error «SIM-card not supported" or "No service", check if your operator is blocking work on this device, Tele2 or Yota) may require SIM card activation for a particular phone model.

Mistake 1: The tray is not taken out.

• 🔹 Possible reason: the paper clip did not fully enter the hole.
• 🔹 Solution: push harder (but no bigotry!) or try from a different angle.
• 🔹 If the tray is jammed, do not try to pull it out with pliers - contact the service center.

Error 2: The phone doesn't see the SIM card.

• 🔹 Possible causes: SIM card is set upwards. Dust or dirt on tray contacts. SIM card is damaged (scratches, bent).
• 🔹 Solution: wipe the contacts of the SIM card and tray with a dry napkin, reinstall the card.

Error 3: The second SIM card is not working.

• 🔹 Possible reason: the second slot is disabled in the settings.
• 🔹 Solution: Go to Settings → SIM-Maps and mobile networks and activate the second slot.

How to trim micro-SIM to nano-SIM for Redmi 4X

If you have an old micro-SIM, you can trim it to the size of a nano-SIM yourself.

• ✂️ Sharp scissors or a stationery knife
• 📏 Line or trimming pattern
• 🖌️ Fill or sandpaper (for grinding edges)

Step-by-step:

1. Put the micro-SIM on a flat surface with the contacts up.
2. Measure the dimensions of nano-SIM: 12.3 mm wide and 8.8 mm high.
3. Carefully trim the plastic on the markup, leaving the metal contacts intact.
4. Grind the edges so they don't scratch the tray.
5. Check that the cropped card is freely included in the Redmi 4X slot.

⚠️ Warning: If you have never trimmed a SIM card, it is better not to take risks - contact the communication salon, where you will be replaced for free with a nano-SIM card. Incorrect cropping can damage contacts, and the card will stop working.

If you do decide to cut yourself, use a template (you can find it online and print it out). SIM-Cards – they are inexpensive and guarantee a neat result.

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You can only trim your SIM card if you are confident in your skills, a pruning error will result in card loss, and it can take up to 3 days to restore the number.

What to do if after installation SIM-card.

If Redmi 4X doesn’t catch the network after installing the SIM card, follow these steps:

1. Sometimes the communication module gets knocked down and the reboot helps.
2. Check the settings. APN. Go to Settings. → SIM-maps and mobile networks → Access points (APN) and make sure that the correct settings are selected for your operator. If you do not have the settings, add them manually (the data can be found on the operator's website).
3. Update software. Outdated firmware can cause communication problems. Check for updates in Settings → About phone → System update.
4. Reset your network settings. Go to Settings → System → Reset → Network Reset. This will remove stored Wi-Fi and mobile settings, but often solves connection problems.
5. Check the SIM card on another phone. If it doesn't work there, contact the operator for a replacement.

If neither of these methods worked, the communication module or the phone antenna may have failed, requiring a diagnostic service center, and the average cost of repairing a communications module for the Redmi 4X is between 1,500 and 3,000 rubles (depending on the breakdown).

Additional reasons for the lack of network:

• 📵 Lockdown IMEI. Check if your phone is blacklisted (for example, if it was lost by a previous owner). IMEI You can do it by command *#06#.
• 🛡️ Activation of fraud protection: Some operators (e.g. MTS or Beeline) block SIM cards if fraud is suspected.
• 📡 Operator problems. Check the operator's website for technical work in your area.

Caring for a SIM-tray: how to prolong its life

Slot for SIM-map 4X — One of the most vulnerable parts of the phone, and to avoid it breaking, follow these tips:

• 🧼 Clean the tray regularly. Every 3-6 months, remove the tray and wipe its contacts with an alcohol wipe. This will remove oxidation and dust that can impair communication.
• 🚫 Don't change your SIM card too often. Each tray extraction wears out the locking mechanism. If you have to change your SIMs often (e.g. when traveling), use a multisim card or eSIM-enabled phone.
• 💧 Avoid moisture. If the phone is wet, immediately remove the SIM card and tray, dry them.
• 🔋 Do not remove the tray when the phone is turned on. This can cause the communication module to malfunction or even damage the firmware.

If the tray starts to jam or fall out, don't try to fix it yourself - this can make the problem worse. SIM-The tray in the service center is about 500-1000 rubles (depending on the region).

Signs of a malfunctioning tray:

• 🔸 The tray is not fixed in the closed position.
• 🔸 SIM card falls out of the grooves.
• 🔸 The phone is making a mistake «SIM-The map is missing, although it is installed.

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If you travel frequently and use local SIM cards, buy a nano-SIM adapter with a retractable tray that will allow you to change cards quickly without risking damage to the phone slot.

FAQ: Answers to Frequent Questions