Xiaomi Redmi Note 8 Pro is one of the most popular smartphones in the budget segment, released in 2019, but still in demand in the secondary market. SIM-This is becoming critical, especially for those who use two SIMs or want to expand their memory with a microSD card.
In this article, we will discuss in detail how much SIM-The Redmi Note 8 Pro supports the cards, how they interact with the memory card slot, and what nuances to consider when installing them.
Technical characteristics of the slot SIM-Maps in Redmi Note 8 Pro
Smartphone Xiaomi Redmi Note 8 Pro equipped with a hybrid slot for SIM-maps, which means a combination of space for two nanoSIM cards or one nanoSIM + MicroSD card (up to 256 GB) is a classic solution for mid-range devices, allowing the user to choose between a second SIM or additional storage.
It is important to understand that two people are used simultaneously. SIM-The Redmi Note 8 Pro doesn't have a card or memory card, so you have to choose between two SIMs or one SIM. + microSD: This limitation is built on the hardware level and is independent of the firmware version or regional modification of the device.
- 📱 Support for two nanoSIMs (Dual) SIM, Dual Standby)
- 💾 MicroSD installation instead of the second SIM-map
- ⚡ Dual Technology 4G VoLTE – both SIMs can work on networks 4G
- 🔄 Support for hot replacement SIM-maps (without reloading)
How to properly install SIM-Maps in Redmi Note 8 Pro
Installation SIM-The cards in the Redmi Note 8 Pro require care, as improper placement can lead to damage to contacts or improper operation of the sims:
- Turn off your smartphone to avoid failures in the communication module.
- Find a tray for SIM-cards on the left side of the device (near the volume buttons).
- Use a paper clip or a special key from the kit to remove the tray.
- Place nanoSIM cards in the appropriate slots: Slot 1 — basic SIM-map (supports) 4G/3G/2G). Slot 2 — second-second SIM-card.
Carefully insert the tray back before the click.
☑️ Pre-installing check SIM-map
After turning on the device, check the recognition of the sims in the settings: go to Settings → SIM-If one of the sims is not identified, try reinstalling it or cleaning the contacts of the tray with dry soft cloth.
Can we use two? SIM-MicroSD cards and microSD cards simultaneously?
As mentioned, the Redmi Note 8 Pro does not support simultaneous operation of two devices. SIM-This limitation is due to the design of the hybrid slot, where the second slot can be used either under nanoSIM or under microSD:
- 🔄 USB OTG-Card reader adapter – allows you to connect microSD through USB-port, but it is inconvenient for permanent use.
- ☁️ Google Drive, Mi Cloud – an alternative to a physical memory card.
- 📲 External storage – some users use USB-Type-C adapter.
💡
If you’re critically interested in two SIMs and extra memory, consider models with a dedicated microSD slot, such as the Redmi Note 10 Pro or the POCO X3 Pro.
It is worth noting that attempts to modify the tray or use adapters to install two SIM-Maps and microSD can simultaneously damage contacts or disrupt network performance. Xiaomi officially does not recommend such experiments.
Dual support 4G the characteristics of the two SIM-map
One of the key advantages of the Redmi Note 8 Pro is the support of Dual. 4G VoLTE. That means both of you SIM-The cards can work simultaneously on networks. 4G, And that includes the ability to make voice calls over VoLTE, but there are a few nuances:
| Function | Slot 1 | Slot 2 |
|---|---|---|
| 4G support | ✅ Yes. | ✅ Yes. |
| VoLTE (voice over 4G) | ✅ Yes. | ✅ Yes. |
| 3G (HSPA+) | ✅ Yes. | ✅ Yes. |
| Network priority | Manually configured | Manually configured |
It is important that you use two SIM-One of the cards will work in Dual mode. SIM Dual Standby (DSDS). This means that when one SIM is active (e.g. during a call), the second is temporarily disconnected from the network.
💡
For the stable operation of the two SIM-card 4G-Make sure your carrier supports VoLTE, otherwise voice calls will be made via the network. 3G, What can slow down the speed of the Internet.
Frequent problems with SIM-maps and their solutions
Redmi Note 8 Pro users sometimes face recognition problems SIM-Let's look at the most common cases and how to eliminate them:
- 🔴 SIMKA is not detected: Check the correct installation (skeet must match). Clear the contacts SIM-- I'll give you a card and a tray of alcohol. SIM-card to rule out its malfunction.
- 📶 No network on one of the sims: Reboot your smartphone. Check your network settings in Settings → SIM-maps and mobile networks → [choose SIM] → Network type. Update your firmware to the latest version (bugs are possible in older versions). MIUI).
- 🔄 Simka only works in 2G: Make sure that the network settings are selected 4G/3G/2G (Check the support. 4G your operator in the region.
What to do if your smartphone doesn’t see any SIM-map?
If the problem persists after all manipulations, it is worth checking the IMEI of the device. To do this, enter the code *#06# in the dialer. If the IMEI is missing or is displayed incorrectly, this may indicate a software failure (solved by firmware reflashing) or a hardware defect.
Comparison with other Xiaomi models for SIM-card support
For those who choose between the Redmi Note 8 Pro and other Xiaomi models, it is useful to compare their capabilities to work with the new model. SIM-Here is a table with key differences:
| Model | Slot type | Two SIMs + MicroSDs | Dual 4G VoLTE |
|---|---|---|---|
| Redmi Note 8 Pro | Hybrid (2 nanoSIM or 1 nanoSIM + microSD) | ❌ No. | ✅ Yes. |
| Redmi Note 10 Pro | Hybrid | ❌ No. | ✅ Yes. |
| POCO X3 Pro | Hybrid | ❌ No. | ✅ Yes. |
| Redmi 9A | Dedicated (2 nanoSIM + microSD) | ✅ Yes. | ❌ No (only one sim) 4G) |
As you can see from the table, the Redmi Note 8 Pro is not inferior to the flagships for support Dual 4G VoLTE, but loses to budget models (for example, Redmi 9A) in terms of the ability to use two Sims and a memory card at the same time. When choosing a device, focus on your priorities: if 4G is important on both SIMs – Note 8 Pro is suitable, if you need microSD + two SIMs – pay attention to models with a dedicated slot.
How to optimize the work of the two SIM-map
If you use two of them SIM-Maps in Redmi Note 8 Pro, configure them correctly to avoid conflicts and distribute traffic as efficiently as possible:
- Assign a basic data SIM: Go to Settings → SIM-maps and mobile networks → Mobile Internet: Select the SIM that will be used for data transfer by default.
- Set up call forwarding: If one of the SIMs is often unavailable, set up redirect to the second in Settings → SIM-maps and mobile networks → Call forwarding.
Turn off automatic network selection
- Manually select your preferred network for each SIM to avoid frequent reconnection.