Xiaomi Mi 6: How much? SIM-Supports cards and how to install them correctly

Xiaomi Mi 6 is the legendary flagship of 2017, which still remains relevant for many users. One of the key questions when buying a used model or planning to use it: how much is it? SIM-The answer is not as clear as it might seem, because the Mi 6 is equipped with a hybrid slot, which imposes restrictions on the simultaneous use of two SIMs and a memory card. In this article, we will analyze all the nuances, including compatibility with modern operators, configuration features and possible problems.

If you are looking for information on how to insert two SIM-If you can expand your memory without losing the second SIM, you have come to the right place.We will also consider alternative solutions for those who want to use two SIMs. + MicroSD simultaneously (spoiler: it is possible, but with reservations) and at the end of the article you will find answers to the most common questions on this topic.

Technical characteristics of the slot SIM-maps in Xiaomi Mi 6

Xiaomi Mi 6 is equipped with a hybrid slot Nano-SIM, which supports:

• 📱 Two Nano-SIM cards (Dual mode) SIM Dual Standby, DSDS)
• 📱 One Nano-SIM. + MicroSD (up to) 256 GB, format FAT32/exFAT)

This means that you can’t use two SIMs and a memory card at the same time, you have to choose between a second SIM or a memory extension. It’s important to note that the slot doesn’t support the Micro-SIM format or the standard SIM format – only Nano-SIM (4FF).

Technically, the slot is implemented as Tray 1 (SIM1) + Tray 2 (SIM2/MicroSD).

• 🔹 SIM1 network 4G/3G/2G (supports VoLTE)
• 🔹 SIM2 limited 3G/2G (no support 4G second-slot)

Note that if you insert a MicroSD into the SIM2 slot, the ability to use a second SIM will be blocked before the memory card is removed.This is a standard limitation of hybrid slots that Xiaomi has not changed even in newer models (for example, the Mi 8 or Mi 9 also have a similar architecture).

How to properly install SIM-Maps in Xiaomi Mi 6

The process of installing sims in the Mi 6 is standard, but there are several nuances that should be considered:

1. Turn off your smartphone before removing the tray. Although hot replacement sometimes works, the risk of contact damage remains.
2. Use a paper clip or a special key (comes in the kit) to remove the tray. The hole is on the top of the smartphone.
3. Place the SIMs according to the scheme on the tray: 📌 SIM1 — top slot (necessarily Nano-SIM) 📌 SIM2 MicroSD – Lower Slot (select one of the two!)

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After installation, turn on your phone and wait for the network to be identified, if one of the SIMs is not recognized:

⚠️ Check if MicroSD is inserted into the slot SIM2. Even if the memory card is empty, it blocks the second SIM, and make sure that the SIM is activated by the operator and supports the chosen communication standard (for example, not all virtual operators work in the slot). SIM2 constraint 3G).

Compatibility of Xiaomi Mi 6 with modern operators (2026)

Although the Mi 6 was released in 2017, it still supports most modern communication standards, but there are important limitations:

Important: c 2026 In the past few years, many operators have started to shut down their networks. 3G favorably 4G/5G. This means that the second SIM-map 6 It can only work in the mode 2G (EDGE), If you are concerned about speed on the second SIM, consider alternative solutions (see next section).

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If the second SIM-map does not catch the network, try to manually select the communication standard: go to Settings → SIM-maps and mobile networks → Settings SIM2 → Network type and install only 2G (if 3G not available in your area).

How to use two SIM-map + MicroSD simultaneously

Officially, the Xiaomi Mi 6 does not support simultaneous operation of two sims + memory cards, but there are workarounds:

1. Use of the Dual Adapter SIM + MicroSD: There are adapters (such as those from Simore or Dual Electronics) that allow you to insert two Nano-SIMs and MicroSDs into a single tray: ⚠️ Not all adapters are compatible with Mi 6 (the risk of missing a signal) ⚠️ Possible problems with determining the second SIM after rebooting ⚠️ Memory card may get hot due to poor contact

Cloud Storage + One SIM

If you are critical to have both SIMs but lack memory, consider using cloud services (Google Drive, Mi Cloud, Yandex Disk) to free up space on the built-in drive (64/128 GB depending on the Mi 6 version).

USB OTG + flash drive

Through USB Type-C can be connected to an external flash drive (required) OTG-This won't replace MicroSD, but it will allow you to transfer files without retrieving the sims.

If you do decide on an adapter, choose models with a metal body and read the reviews about compatibility specifically with the Xiaomi Mi 6. For example, the Simore Nano SIM + MicroSD adapter has positive reviews, but requires careful installation.

Set-up of two SIM-map

Once you have the SIMs set, you have to set them up correctly. In Mi 6, you do this through the menu:

1. Go to Settings. → SIM-maps and mobile networks.
2. Select Control. SIM-map.
3. Set priorities: 📞 Calls: Select which SIM will be used by default 📶 Mobile data: provide a SIM for the Internet (recommended) SIM1) 💬 SMS: set up sending messages from the desired SIM

Always ask

Calls.

Features of setting:

• 🔄 If you use two SIMs from the same operator, there may be a conflict of identifiers (IMSI). In this case, one of the sims will be disconnected.
• 🌐 To save traffic, set up background restriction for the second SIM in Settings → Transfer of data → Background restriction.
• 📵 If the smartphone does not catch the network on one of the sims, try resetting the network settings in Settings. → System system → Resetting settings → Resetting Wi-Fi, Mobile Network and Bluetooth.

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Xiaomi Mi 6 cannot be used on the device 4G both SIM-If you want fast internet on the second SIM, consider buying a smartphone with full Dual support. 4G (For example, the Redmi Note 12 Pro+ or newer models of the Mi).

Frequent problems and their solutions

Xiaomi Mi 6 users often face the following problems when working with the user. SIM-map:

1. Not defined second SIM-map: Causes: 🔌 In the slot SIM2 MicroSD installed (even if it is not recognized by the system) 🔌 Simka is inactive or blocked by the operator 🔌 Slot contacts damaged (check for oxidation) Solution: Remove the tray, check for the correct setting of the sims, clean the contacts with alcohol. If the problem remains, try another SIM card.
2. No network. 4G first SIM-map: Causes: 📡 In the network settings selected mode Only 3G/2G 📡 Simka doesn't support me. 4G (For example, old tariffs) 📡 Firmware problems (solved by update) MIUI)

Solution: Go to Settings → SIM-maps and mobile networks → Settings SIM1 → Network type and select 4G (recommended).

Smartphone does not see microSD in hybrid slot

Reasons:

• 💾 The map is formatted in NTFS (need FAT32 exFAT)
• 💾 The file system of the card is damaged
• 💾 In the slot there are particles from the old SIM

⚠️ Warning: If your MicroSD device starts to overheat or discharge quickly, remove the card and check it on another device. Poor memory cards can cause the communication module to malfunction.

Xiaomi Mi 6 with full support for Dual SIM

If the Mi 6’s limitations are critical, consider the following models with full-fledged Dual SIM+ MicroSD (no hybrid slots):

If you’re interested in compatibility with modern communication standards (like VoNR for 5G or Dual 4G), consider models no older than 2020. Xiaomi Mi 6, despite its merits, is morally outdated in terms of network support.

FAQ: Answers to Frequent Questions