Installation SIM-But even here, Xiaomi Redmi 8 Pro users face typical problems, from the wrong location of the tray to errors in activation of the mobile network. This model, released in 2019, supports two nano-SIMs or one. SIM + microSD, but the design of the slot has its own peculiarities. If you are holding this device for the first time or switching from a device of another brand, our guide will help to avoid annoying errors - from a tray breakage to the lack of signal after installation.
Unlike the flagship models of Xiaomi, where the slot for SIM-The Redmi 8 Pro is often on the top of the map, and it's on the left, which is not obvious to many people, and it also supports a hybrid slot, which means you can choose between a second SIM or a memory card, and we'll look at not only the mechanical part of the process, but also the software nuances. How to set priorities SIM, insert 4G And for those of you who are afraid of damaging the device, we've prepared a security checklist and answers to a lot of questions.
If you've just unpacked the Redmi 8 Pro or are considering changing carriers, don't rush to insert the SIM at random. Even experienced users sometimes overlook the little things, such as that the tray should be removed strictly perpendicular to the body, not at an angle.
- π The exact location of the slot and how to open it without a paper clip
- π Supported formats SIM (nano-SIM vs microSD)
- βοΈ Step-by-step instructions with photos and videos (for visuals)
- β οΈ Typical errors and how to avoid them (for example, why the phone canβt see the SIM)
- πΆ Network setup after installation: operator choice, priority SIM, 4G
If youβve tried to insert a map, but something went wrong, thereβs a map at the end of the article. FAQ with solutions to the most common problems.
1 Where is the slot for SIM-Cards in Redmi 8 Pro?
In Xiaomi Redmi 8 Pro slot for the SIM-The card is located on the left side of the case, which is the standard solution for most models of the Redmi line, but many users out of habit look for it on the upper or right side, especially if they have previously used smartphones of other brands (for example, Samsung, where the slot is often on top).
It is visually easy to identify by:
- π Small opening for extracting the tray (diameter) ~1 mm)
- π Metal edging, contrasting with the plastic case
- π Location approximately in the middle of the side face (not at corners!)
If you hold your phone with your screen, the slot will be on the bottom left, which is important not to confuse it with the charging connector (which, by the way, is the bottom-center in this model).
Photo of slot location
The Redmi 8 Pro uses a hybrid slot, meaning you can install either two nano-SIMs or one nano-SIM. + microSD (up to 256GB) means that if you need a memory card, you have to sacrifice a second SIM. Note: the model does not support eSIM, so the physical SIM-card.
2 Which ones. SIM-The cards are suitable for the Redmi 8 Pro?
Xiaomi Redmi 8 Pro works exclusively with nano-SIM (format) 4FF, size 12.3 Γ 8.8 If you have a different size card (micro-SIM or mini-SIM), you will have to cut it or replace it in the operator's cabin:
- π« Poor contact and loss of network
- π₯ Overheating of the communications module
- π₯ Break the slot (if the card gets stuck)
In the table below - comparison of formats SIM-Compatibility with Redmi 8 Pro:
| SIM format | Size (mm) | Is it good for the Redmi 8 Pro? | Notes |
|---|---|---|---|
| nano-SIM (4FF) | 12.3 Γ 8.8 Γ 0.67 | β Yes. | Standard format for the model |
| micro-SIM (3FF) | 15 Γ 12 Γ 0.76 | β No. | Trimming or replacement required |
| mini-SIM (2FF) | 25 Γ 15 Γ 0.76 | β No. | It's too big. |
| eSIM | Virtual | β No. | The model does not support eSIM |
If you are planning to use two SIM-maps, make sure both are nano-SIMs. The second SIM supports the same communication standards (2G/3G/4G), but with some limitations:
- πΆ Basic SIM (slot 1 supports 4G VoLTE
- π Second second SIM (slot 2) can only work in 2G/3G, if in the slot 1 fixed 4G-map
π‘
If you travel frequently, install in slot 1. SIM-card of the main operator (for 4G), And the second one is a local SIM for calls, which will save you on roaming.
3. Step-by-step instruction: how to insert SIM-map
Now, let's get to the practice. You're going to need to:
- π± Xiaomi Redmi 8 Pro Smartphone
- π Paperclip or special key for extracting the tray (comes complete)
- π nano-SIM card(s)
If you don't have a paper clip, any thin metal wire or even an unbended stationery bracket will do, and the key is not to use plastic or wooden objects so as not to damage the mechanism.
Turn off your phone (recommended, but not required)
Check that SIM-map is trimmed to nano-SIM
Prepare a paper clip or key to remove the tray
Make sure there are no scratches or chips on the map-->
Follow the instructions:
- Turn off your phone (optional, but recommended for safety) If your smartphone is on, make sure the screen is unlocked, which will help avoid accidental taps.
- Find the hole to remove the tray on the left side (see photo in section 1). ~45Β° And push until you click. The tray should extend 2-3 mm.
- Carefully remove the tray with your fingers. Don't pull it sharply - there is a spring mechanism inside that can be damaged.
- Put it down. SIM-card(s: π For one. SIM: Set it in slot 1 (usually marked as"SIM 1" or "Primary"). ππ For two. SIM: Place the second card in slot 2 (can be combined with a microSD).
Pay attention to the bevel on the corner of the map - it should coincide with the notch in the tray!
Put the tray back in.
Turn on the phone.
After installation SIM-The card is not determined, check it out:
- β Correct installation (the skeet must match!)
- β No pollution in the slot (dust, moisture)
- β The card is functional (try inserting it into another phone)
4.Typical mistakes and how to avoid them
Even with the seemingly simple process, users often make mistakes that lead to a network being missing or even a slot being broken, and here are the most common ones:
β οΈ Attention: If the tray is not removed after pressing the paper clip, do not apply excessive force.Perhaps the mechanism is jammed due to dust or deformation.In this case, contact the service center - self-attempts repair can exacerbate the problem.
Mistake 1: Misdirected orientation SIM-map
The bevel at the corner of the nano-SIM should match the notch in the tray. If you insert the card upside down, the phone will not see it, and if you force it, you can damage the contacts. In the Redmi 8 Pro, the bevel is located in the upper right corner (if you look at the tray with the front side).
Mistake 2: Use of incompatible SIM-map
As we wrote earlier, the model only supports nano-SIM. If you try to insert a micro-SIM without an adapter or cropped in a home-made way, this can lead to:
- π Poor contact and intermittent communication
- π₯ Overheating of the module (due to incomplete fitting)
- π₯ Breakdown of the spring mechanism in the slot
Mistake 3: Forced tray extraction
If the tray doesn't extend after you press it, don't try to pull it out with pliers or other tools. It's a common cause of plastic rail failure.
- Try pressing the paperclip again, holding the phone at a different angle.
- Check if the dirt has entered the hole (you can blow it with compressed air).
- If nothing helps, contact the service - replacing the slot will cost less than repairing a damaged connector.
Mistake 4: Using two things at the same time SIM microSD
In the Redmi 8 Pro, slot 2 is hybrid, which means you can only choose one option:
- ππ Two nano-SIMs
- ππΎ One nano-SIM + microSD
If you try to insert the second one. SIM, The phone will not see one of them (usually a microSD).
5. Network setup after installation SIM-map
Successful installation SIM-In order for the phone to get online, you need to set up the communication settings correctly. In Redmi 8 Pro, this is done through the Settings menu. β SIM-maps and mobile networks.
If after turning on the phone in the status bar there is no icon network (or it crossed out), follow the following steps:
- Manual Operator Selection: Go to Settings β SIM-maps and mobile networks β [choose SIM] β Network operators. Click Network Search and manually select your carrier. This will help if the automatic search fails.
- Priority setting SIM: If you have two. SIM-maps, in the menu Settings β SIM-maps and mobile networks β Priority SIM Choose which one will be used for: π Calls (by default) πΆ Mobile data π© SMS
Inclusion 4G (LTE)
The default phone can use 3G. To activate 4G, Go to Settings. β SIM-maps and mobile networks β [choose SIM] β Preferred network type and select 4G/3G/2G (motor-car).
Verification APN
If the internet is not working, access parameters may not be configured (APN). Go to Settings. β SIM-maps and mobile networks β [choose SIM] β Access points (APN) And make sure that it's your operator's settings that are right, and they're usually set automatically, but sometimes you need to manually type in.
Example of APN settings for MTS
If after all the manipulations the network has not appeared, try:
- π Reboot the phone
- πΆ Turn on/off flight mode
- π§ Reset network settings (Settings) β System system β Reset β Resetting network settings)
π‘
If the phone can't see SIM-Even after you have installed the card correctly, check it on another device, and it may be the card itself (e.g., it is blocked by the operator).
6 What to do if the phone canβt see SIM-map?
The situation when SIM-The card is installed correctly, but the phone doesn't see it, it's quite common, and it can be both software and hardware.
Reason 1: Contact contamination
Dust, moisture or oxidation of contacts in the slot or on the slot itself SIM-The card may break the connection to clear the contacts:
- Extract. SIM-card.
- Wipe the contacts on the map and in the slot with a soft dry cloth (such as a microfiber).
- If you have a lot of pollution, use alcohol wipes (do not pour alcohol on your phone!).
- Allow everything to dry for 5-10 minutes before re-installation.
Reason 2: Software Failure
Sometimes the problem is the firmware or the phone settings.
- π Reboot your phone (hold the power button for 10 seconds).
- π§ Reset network settings (Settings) β System system β Reset β Resetting network settings).
- π± Update the firmware (Settings) β The phone. β Updating the system).
Reason 3: Hardware malfunction
If none of these methods helped, the following problems may occur:
- π The slot is damaged. SIM-Cards (for example, after a phone crash).
- π‘ Communication module (antenna or chip) is defective).
- π Problems with the motherboard (occurs after moisture is ingested).
In these cases, self-repair is not recommended β contact the Xiaomi service center or a checked repair center.
β οΈ If the phone is no longer visible SIM-If you fall or come into contact with water, don't try to disassemble it yourself. corrosion on the contacts can get worse, and improper assembly can lead to short circuit.
Frequent questions about SIM-Maps in Redmi 8 Pro
We have collected answers to the most popular questions of users Xiaomi Redmi 8 Pro on the topic SIM-If your question isn't here, check the comments under the article or check the details with the operator.
Can I use a microSD and two? SIM-mapping?
The phone doesn't see the second. SIM-The map is set correctly, but what to do?
How to trim micro-SIM to nano-SIM for Redmi 8 Pro?
Why After Installation SIM-The card has no network, although the phone can see it?
Can I insert SIM-Redmi 8 Pro card without switching off the phone?
8.Conclusion: Slot care tips SIM-map
To avoid problems with SIM-With maps in Xiaomi Redmi 8 Pro in the future, follow simple guidelines:
- π§Ή Clean the slot regularly from dust (every 3-6 months). Use compressed air or a soft brush.
- π« Donβt remove the tray too often β it shatters the mechanism.
- π§ Avoid getting moisture into the slot (for example, do not use your phone in the rain without a cover).
- π Do not use metal objects (except paper clips) to extract the tray - they can scratch the contacts.
If you change often SIM-cards (e.g. on trips), consider buying a duplicate SIM This will save you the need to constantly remove the tray, and it is also useful to have a spare clip on hand, which is useful not only for the phone, but also for other devices (tablets, routers).
After all the manipulations, the phone still does not see SIM-In the Xiaomi Redmi 8 Pro, the slot is connected to the motherboard with thin plumes that are easy to damage. Contact the service - diagnostics are usually free and repairs will cost less than replacing the entire board.