Xiaomi Redmi 9A — One of the brand's most popular budget smartphones, which is still in demand today because of the price-to-function ratio, but before buying, many users wonder how much they can buy. SIM-Is it possible to use two SIMs at the same time? Can a slot be compatible with memory cards? In this article, we'll look at all the nuances of working with the SIM card? SIM-maps at Redmi 9A, including technical limitations, customization features and answers to frequent questions.
It is important to note that the number of supported SIM-The cards have a direct impact on the usability of your smartphone — especially if you need to separate work and personal numbers or use the services of different operators. We analyzed the official specifications, user reviews and conducted tests to give an accurate answer: Xiaomi Redmi 9A It supports 2 nano-SIM cards, but with one important limitation, there is no microSD card slot when using two sims.
Previous Post:What Xiaomi Says About Support SIM-map
According to the manufacturer, the Xiaomi Redmi 9A is equipped with a hybrid slot for installing cards, which means that the user can choose from two options:
- 📱 Two nano-SIM cards (4G + 4G) — double-number.
- 💾 One nano-SIM + microSD card (up to 512 GB) – if the priority is given to memory expansion.
Important: Redmi 9A It does not support the simultaneous installation of two SIM-This is a typical limitation for Xiaomi’s budget models, where a hybrid slot is used to save space inside the case. SIM-The cards work in the standard 4G LTE, nuanced:
- 🔄 Double standby activity (DSDS): Both SIMs can receive calls, but during a conversation on one of them the second will be unavailable.
- 🌐 VoLTE support: depends on the firmware and operator (in Russia works at Beeline, MegaFon, Tele2).
Xiaomi official documents also indicate that the smartphone supports Dual SIM Dual Standby (DSDSDS), but not Dual SIM Dual Active (DSDA), which means that both SIMs can be active in the background, but only one can work with data at the same time.
Where is the slot for SIM-maps and how to open them
At Xiaomi Redmi 9A slot SIM-The card is on the left side of the case (if you look at the screen), and to remove the tray, you need a special key-clip, which comes with the kit, if you don't have it at hand, you can use an unbended paper clip or a needle with a blunt end.
Step-by-step instructions for removing the tray:
- Turn off your smartphone (recommended, but not required).
- Find a small hole on the left end of the body.
- Insert the key-clip into the hole before clicking - the tray will be pushed out a little.
- Take the tray out carefully and install it. SIM-map.
☑️ Preparation for installation SIM-map
Important: the tray is labeled to fit the cards correctly, for example, it might be marked SIM1 and SIM2 or SIM/MicroSD. If you set two SIM-cards, memory card won't fit!
⚠️ Warning: Do not use excessive force when removing the tray - this can damage the locking mechanism. If the tray does not come out, check if the key clip is bent.
How to configure the work of two SIM-cards: step-by-step instructions
After installing two SIM-The smartphone will automatically detect the cards, but you will need additional settings to work correctly. → SIM-Maps and mobile networks and follow the following steps:
- Name of name SIM-Cards: Assign unique names (e.g., "Worker" and "Personal") to avoid confusing them when calling.
- Network Priority: Select which SIM will be used for mobile internet by default (Mobile Data).
- Calls: Set up which SIM will be used by default to make outgoing calls.
- SMS: Specify the SIM to send messages by default.
You can also use this menu:
- 🔄 Enable/disable automatic network selection (recommended to leave on).
- 📶 Shut down. 2G/3G/4G specific SIM (It is useful if one of the SIMs is used only for calls).
- 🔔 Set up notifications for incoming calls for the second SIM (vibrating, melody).
If one of them SIM-The cards are not determined, check:
- 🔌 Installation correctness (the card should fit tightly to the contacts).
- 📡 Support your carrier’s frequencies (e.g. Redmi) 9A doesn't support networks 5G).
- 🔄 Rebooting the smartphone after installation.
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If the smartphone does not see SIM-If you want to use a card, try to wipe its contacts with a soft cloth (no alcohol!) or install it in another slot. Sometimes it helps to update the firmware to the latest version.
4G and VoLTE Compatibility: What You Need to Know
Xiaomi Redmi 9A supports 4G LTE networks, but there are a few nuances:
| Characteristics | Details. |
|---|---|
| 4G support | Yeah, both. SIM-cards can work in 4G, Only one can be active at the same time (the second switches to the second). 2G/3G). |
| VoLTE (voice over 4G) | Supported, but depends on the operator and firmware version. In Russia, it works at Beeline, MegaFon, Tele2. |
| Support for 5G support | No, the model is equipped with a MediaTek Helio G25 chipset, which does not support 5G. |
| Maximum speed | Up to 150 Mbps (LTE Cat.4). |
If you have a problem with 4G, check out:
- 📡 Settings APN (access points – they must meet the operator’s requirements.
- 🔄 Network Mode: Go to Settings → SIM-maps and mobile networks → [choose SIM] → Network type and select 4G (recommended).
- 📱 Update of the firmware: old versions MIUI They may have problems with work. 4G.
⚠️ Note: If you use two of these SIM-If you have a card, and the mobile Internet is unstable, try turning off automatic network selection for one of the sims.
Frequent problems and their solutions
Xiaomi Redmi Users 9A Sometimes they have difficulty working with SIM-Let's look at the most common ones and how to eliminate them:
1.The smartphone doesn't see one or both SIM-map
Causes and solutions:
- 🔌 Bad contact: Remove the tray, check if the contacts are contaminated SIM-A card or a slot. Rub it with a soft cloth.
- 🛠️ Slot damage: if contacts are bent, contact the service center.
- 📱 Software failure: reset network settings (Settings) → System system → Resetting settings → Resetting network settings).
2. mobile Internet is not working on one of the SIMs
What to do:
- 📡 Check balance and plan (the traffic may have run out).
- 🔄 Reboot your smartphone.
- 📝 Make sure that in the settings APN The correct parameters are indicated (you can request them from the operator).
3 Calls are dropped or not passed
Possible causes:
- 📶 Weak signal network – try switching to 3G customized SIM-map.
- 🔕 Conflict with applications - disable the economy of the battery for the application "Phone".
- 📞 VoLTE problems – disable this feature in settings SIM-map.
What to do if your smartphone stops seeing SIM-maps after update?
Comparison with other Xiaomi models: which is better?
If you want to support two people SIM-cards and memory cards at the same time, pay attention to alternative models of Xiaomi, which implemented a separate slot for microSD:
| Model | SIM count | MicroSD slot | 4G support for both SIMs |
|---|---|---|---|
| Redmi 9A | 2 nano-SIM | Hybrid (or SIM, or microSD) | Yes (but one works at the same time) |
| Redmi 9C | 2 nano-SIM | Hybrid | Yes. |
| Redmi Note 10 | 2 nano-SIM | A separate slot for microSD | Yes. |
| POCO M3 | 2 nano-SIM | A separate slot for microSD | Yes. |
If you are critical to the opportunity to use two SIM-cards and a memory card at the same time, it is better to choose a model with a dedicated microSD slot, for example, the Redmi Note 10 or the other. POCO M3. But Redmi, 9A It is a great budget option if you don’t need to expand your memory.
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The main difference between Redmi 9A from more expensive models - a hybrid slot that forces you to choose between the second SIM-It's a compromise for a low price.