How to put it right SIM-Map in Xiaomi Redmi 8: instructions with photos and nuances

Xiaomi Redmi 8 is one of the most popular budget smartphones of the brand, but even experienced users sometimes have questions with installation. SIM-Unlike flagship models, where the tray is easily extended, there are nuances: the non-standard location of the slot, the risk of damaging the sealing gum or inserting nano-SIM incorrectly. In this article, we will analyze the process from A to Z – from tool preparation to network verification, and also tell you how to avoid typical errors, because of which the phone does not see the card.

The Redmi 8 is a co-op slot that supports either two nano-SIMs or one nano-SIM+ microSD card (up to 512GB), which means that if you want to expand your memory, you have to sacrifice a second SIM, and we'll show you how to place the cards in the tray correctly so that you don't damage your contacts, and what to do if you don't catch them after installation.

Important: The manual is suitable for all Redmi 8 modifications (including Redmi). 8A redmi 8A Dual, but in 8A The slot is not hybrid - there are only two slots under the SIM. Clarify your device model in settings (Settings) → The phone. → Model, so as not to be wrong!

Preparation: What will be needed for installation SIM-map

Before you start, make sure you have everything you need. Complete with Redmi 8 comes a special key to remove the tray (clip with a curved end), but if it is lost, it is not a problem. Any thin metal clip, pin or even a toothpick will do (but carefully so as not to break).

Also check:

• 📱 Type SIM-maps: nano-SIM only (12.3 × 8.8 If you have an old micro-SIM or a standard one, it needs to be trimmed or replaced in the operator's cabin. Using an adapter or trimming with scissors often leads to poor contact!
• 🔧 Tool to remove the tray: key from the kit, clip or needle.Do not use a knife or other sharp objects - they can scratch the body.
• 📶 Network coverage: Make sure your operator is supported in the region before installation (check on the operator’s website or in the Mobile Network app).
• 🔋 Battery charge: if the phone is discharged, it is better to charge it first 20-30%. It's necessary to check the work SIM post-installation.

If you plan to use a memory card, prepare it in advance: format it in FAT32 or exFAT (via your computer or in your phone settings). Redmi 8 supports microSD up to 512 GB, but for stable operation it is better to choose cards with a class at least A1 or UHS-I.

⚠️ Attention: Do not use SIM-Even minor damage can cause network instability or no signal. If the card was cut by hand, check it on another phone before installing it in Redmi 8.

Where is the slot for SIM-maps in Redmi 8

Unlike many modern smartphones, where the slot is located on the upper or lower edge, in Redmi 8 it is on the left end (if you look at the screen).

• 🔍 The little hole next to the volume buttons is the key connector.
• 📏 Distance from the upper edge: approximately 1/3 the height of the body (closer to the camera than to the charging socket).
• 🎨 Color mark: Some models have a small dot or a strip of contrasting color near the slot (usually red or orange).

If you’re not sure you’ve found the right hole, compare it to the photo below (or watch the video manual from Xiaomi).The main thing is not to confuse the SIM slot with the microphone, which is located on the bottom end next to the USB-C connector.

On some Redmi 8 (especially Chinese versions), the slot can be closed with a protective film. If the key does not enter or the tray does not extend, gently tuck the film with a nail or a plastic card.

Step-by-step: how to remove the tray for SIM-map

Now, to the most important step, the tray removal, follow the instructions carefully so that you don't break the latch.

1. Turn off the phone (optional, but recommended for safety) If the battery is removable, remove the back cover (in Redmi 8 it is not removable, so this item is not relevant).
2. Take the key (or paperclip) and insert it into the hole next to the slot to the point. Press with a little effort until you feel the click.
3. The tray will extend 1-2 mm - gently pull it with your fingers until it is fully removed. Don't pull around the corner so as not to bend!

If the tray doesn't come out:

• 🔄 Check if you have inserted the key correctly (it should be strictly perpendicular to the body).
• 🔧 Try another tool (such as a thinner needle).
• 📱 Turn the phone over and try again – sometimes gravity helps.

Phone is off or in aircraft mode

The tool is inserted into the correct hole

No obstacles to the extension of the tray (dust, film)

Pressure is moderate (without fanaticism)-->

If the tray is jammed and it does not retract even after several attempts, do not make excessive efforts - contact the service center. In Redmi 8, the fixation mechanism is plastic, and it is easy to break.

How to insert it correctly SIM-card-tray

The Redmi 8 tray has two sides: one for nano-SIM, the other for microSD (if your model supports a hybrid slot).

• 🆔 Mark. SIM1 or SIM2 — sim-card.
• 📁 Mark. SD or TF — memory-card.
• 🔳 Notches in the corners - they must coincide with the shape of the map.

SIM installation:

1. Put the tray on a flat surface (better on a table, not hold in your hands).
2. Take a nano-SIM and place it in the appropriate groove with the contacts down, make sure that the bevelled corner of the card matches the bevelled angle on the tray.
3. If you install a second SIM, repeat the same for the SIM2 slot.
4. For microSD: insert the memory card into the SD slot (usually located on the opposite side of the SIM1).

Important: don't press the card when you install it, it should lie free, and if you have to push it, you've placed it wrong.

⚠️ Note: If you use two of these SIM-maps, make sure they are from different carriers with good coverage in your area.Redmi 8 does not support channel aggregation (LTE-A), Internet speed will be limited to one SIM.

Installation of the tray back into the phone

Once the cards are placed, carefully insert the tray back into the slot, so the key is not to skew it, otherwise the contacts may not come into contact with the board.

1. Hold the tray by the edges (without touching the cards) and pair it with the groove on the phone.
2. Press the thumb on the tray until the characteristic click. The effort should be moderate - if the resistance is too strong, check if the cards are correctly lying.
3. Make sure the tray doesn't protrude outside the hull. If it's not fully sunk, remove it and try again.

After installation, turn on the phone (if it was turned off) and wait for the load. On the lock screen or in the status bar, the network indication (name of the operator or signal icon) should appear. If it is not, see the section "What to do if the phone can not see". SIM-map».

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If the tray is not fixed, try to move it slightly left-right before the final press - sometimes this helps the latch to work.

Network settings after installation SIM-map

Even if SIM-The card is physically installed correctly, the phone may not be automatically connected:

1. Go to Settings. → SIM-maps and mobile networks.
2. Choose yours. SIM-map (if there are two, set each separately).
3. Make sure that the mobile data switch is active.
4. In Network Type, select 4G (preferably) or 3G (if 4G doesn’t catch).
5. If required, enter APN manually (you can take the settings on the operator’s website).

To speed up the connection:

• 🔄 Restart your phone after setting up.
• 📡 Turn on and off Airplane Mode (this will reset the connection).
• 📶 If the signal is weak, try manually selecting the network in Settings. → Mobile network → Network operators.

If after all the manipulations the network does not appear, check:

• 🆔 Does it work? SIM-card in another phone (possibly blocked by the operator).
• 📱 Is there any physical damage to the contacts of the tray or the card itself.
• 🔧 Is the phone software updated (go to Settings) → The phone. → Updating the system).

Frequent Mistakes and How to Avoid Them

Even experienced users sometimes make mistakes when installing SIM in Redmi 8.

If you use two of them SIM-maps and one of them is not working, check the priority of the network:

1. Go to Settings. → SIM-maps and mobile networks → Priority SIM-map.
2. Choose which SIM will be used for calls, SMS and mobile Internet by default.

FAQ: Answers to Frequent Questions