Xiaomi Redmi 6 is one of the most popular budget smartphones of the brand, which is still in demand in the secondary market. SIM-This model supports cards, and is it possible to use two SIMs and a memory card at the same time? In this article, we will analyze all the nuances - from the technical characteristics of the slot to practical tips for setting up the slot.
Many people mistakenly think that the hybrid slot in Redmi 6 limits functionality, but in fact it offers flexible configuration options. We will analyze the official specifications, compatibility tests with operators and even reveal little-known features, such as how to make two SIMs roaming without failure. If you plan to buy this smartphone or already face problems with using multiple SIMs, here you will find answers.
We'll focus on practical scenarios: what to do if one of the SIMs doesn't catch the net, how to insert cards into the slot correctly, and why Redmi 6 sometimes doesn't see the second SIM after a firmware update. And compare Redmi 6 to other models of the lineup for support of SIMs - this will help those who choose between several options.
Official characteristics: how many SIM-maps in Redmi 6?
According to documentation from Xiaomi, Redmi 6 is equipped with a hybrid slot for two nano-SIM or one nano-SIM + microSD card (up to 256 GB), which means that you can physically install:
- π± Two nano-SIM cards (without a memory card)
- π± One nano-SIM. + microSD (without the second SIM)
Important: The Redmi 6 model (codenamed cereus) does not support simultaneous operation of two SIMs and a memory card. This limitation is due to the hardware architecture - the slot physically has only two contacts to connect.
And both of them. SIM-maps are working 4G VoLTE, but with reservations:
- π Basic SIM (slot 1 supports 4G all-frequency.
- π Second second SIM (slot 2 may operate in 4G, but only if the operator supports VoLTE and the smartphone is configured accordingly.
Hybrid slot: how it is designed and what restrictions imposes
The hybrid slot in Redmi 6 is a compromise between the compactness of the case and functionality. Unlike flagship models, which often install separate slots for each SIM and microSD, it uses a universal tray that can be configure under different combinations:
| Configuration | 4G support | Support for microSD support | Notes |
|---|---|---|---|
| SIM1 + SIM2 | Yes (SIM1 is full 4G, SIM2 is 4G with VoLTE) | No. | Both SIMs are active, but the second one can switch to 3G. |
| SIM1 + microSD | Yes (SIM1 only) | Yes (up to 256GB) | Second SIM is off. |
| Only SIM1. | Yes. | No. | Slot 2 empty |
Critical note: if you use two SIMs, then if you call one of them actively, the second one temporarily disconnects from the network (this is standard behavior for most smartphones with Dual SIM). However, Redmi 6 has a Dual SIM Dual Standby feature that allows both SIMs to stay online, but with power restrictions.
β οΈ Attention: When using two SIM-There may be network conflicts, especially in roaming, for example, if one SIM is running on a network. MTS, second β Tele2, The smartphone can arbitrarily switch priority, which leads to loss of signal.
How to insert it correctly SIM-Redmi 6 cards: step-by-step instructions
Incorrect installation SIM-Cards are a common cause of trouble. Follow this instruction to avoid problems:
- Turn off your smartphone (required!).
- Take a paper clip or a special key from the set, insert a tray into the hole (located on the upper edge of the case).
- Carefully remove the tray. Pay attention to the marking: slot 1 is usually marked as SIM1, slot 2 as SIM2/microSD.
- Install the nano-SIM cards with metal pins down. If you use a microSD, insert it into slot 2 instead of the second SIM.
- Close the tray before clicking and turn on the phone.
Make sure the tray is snapped.|Check the availability of the network on both SIMs|Set SIM Priority in Settings β SIM-maps and mobile networks|Reboot your smartphone if one of the sims is not determined-->
If one of the sims is not recognized after installation:
- π Reboot your smartphone.
- π Check if the card is inserted correctly (contacts should fit tightly).
- π Try inserting the SIM into another slot.
- π Update the firmware (sometimes software bugs block the second SIM card).
π‘
If you travel frequently, set up Roaming Networks for each SIM separately. β SIM-maps and mobile networks β [choose SIM] β Roaming and enable the option.This will help to avoid connection problems abroad.
Dual SIM vs. MicroSD: Which one to choose?
The main dilemma for Redmi 6 owners is to choose between a second SIM card and a memory card, and here are the key factors that will help make the decision:
- π Two SIMs are needed if: You use work and personal numbers. You travel and need a local number. SIM + You want to share the traffic (e.g. one SIM for the Internet, another for calls).
- πΎ A memory card is preferable if: You lack built-in memory. 16/32 GB of memory. You shoot a lot of videos or you store big files. You don't need a second SIM all the time.
An alternative solution is to use cloud services (like Google Drive or Mi Cloud) to store files, leaving both SIMs, but this will require a stable internet connection and can be uncomfortable when traveling.
Can you cheat the system and use two SIMs + microSD?
Setting up two SIM-maps: priorities, internet, calls
After you set the two sims, you need to set them up correctly, and here are the key parameters that you can change:
- Priority SIMs for Calls: Go to Settings β SIM-maps and mobile networks β Priority SIM-Call cards. Choose which SIM will be used by default.
- Mobile Internet: In the same menu, select "Mobile Data" and specify a SIM for the Internet. Please note that if you include mobile data on both SIMs, traffic will be spent only with priority.
SMS by default:
- Set up which SIMs are sent from SMS In Settings β Annexes β Communications β SIM-default-card.
For convenience, you can assign names to SIMs (for example, "Worker" and "Personal"). β SIM-maps and mobile networks β [choose SIM] β Name. SIM-map.
β οΈ Note: If you use two SIMs from the same operator (for example, two Beeline), you may have problems identifying the device on the network. Some operators block such configurations, considering them fraudulent.
Comparison with other Xiaomi models: who supports more SIMs?
If you are critically important to support two sims and memory cards at the same time, pay attention to other Xiaomi models, where separate slots are implemented:
| Model | SIM count | Support for microSD support | Slot type |
|---|---|---|---|
| Redmi Note 7 | 2 nano-SIM | Yeah (separate slot) | Three separate slots |
| Redmi 9 | 2 nano-SIM + microSD | Yeah (hybrid) | Hybrid (as in Redmi 6) |
| POCO X3 | 2 nano-SIM | Yeah (separate slot) | Three separate slots |
| Mi 11 | 2 nano-SIM | No. | Without microSD support |
As you can see from the table, Redmi 6 is not unique in terms of hybrid slots β a similar solution is used in newer models (for example, Redmi 9).However, flagship devices (for example, Mi 11) often lack microSD support at all, and budget series like POCO or Redmi Note offer more flexible options.
If you want maximum functionality, consider models with three separate slots (like the Redmi Note 7 or POCO X3).They allow you to use two SIMs and a memory card at the same time without compromise.
Frequent problems with SIM-Redmi 6 maps and their solutions
Even with the right setup of SIMs, Redmi 6 users sometimes face problems, and let's look at the most common cases and how to fix them:
- π΅ Smartphone doesn't see one of the sims: Check if the slot is dirty (clean it carefully with a soft brush). Try inserting the SIM into another smartphone -- if it doesn't work, the problem is in the map. Update the firmware to the latest version (software bugs often block the second SIM card).
- π No network on the second SIM: Make sure the SIM is activated by the operator. APN (Especially if the new operator's SIM is on. 2G" for the second simki (sometimes) 3G/4G conflict).
- π Fast battery discharge with two SIMs: Turn off background data transfer for the second SIM in Settings β SIM-Maps and mobile networks. Enable Charge Saving mode in battery settings.
If none of these methods worked, there may be a hardware problem (a slot or antenna damaged), in which case, contact the service center, remember that self-repairing the slot can lead to a loss of warranty.
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Before contacting the service, check the SIM on another phone - this will help to eliminate the problem on the operator's side.