How to put two SIM-cards and memory card in Xiaomi Redmi Note 7: hybrid slot and life hacks

Why is Redmi Note 7 only 2 slots instead of 3?

Xiaomi Redmi Note 7 has become one of the most popular budget devices of 2019 due to the balance of price and features. SIM-The fact that the manufacturer has applied a hybrid scheme - the second slot combines the functions for nano-SIM and microSD, but can not work with both at the same time.

This feature of the architecture raises a lot of questions: Can you get around the limitation? Are there adapters or software solutions? And most importantly, how not to damage the slot when installing? In this article, we will examine all the nuances from the official slot layout to alternative ways to expand memory without losing the second SIM. You will also learn what card formats are supported, how to properly extract the tray and what to do if the phone does not see one of the cards.

We warn you right away: Redmi Note 7 (codename lavender) doesn’t support simultaneous SIM and microSD at the hardware level. Any promises to β€œbypass the restriction” without physical modifications are a hoax. But there are legal ways to optimize the use of slots, which you will read about below.

Technical characteristics of slots in Redmi Note 7

Before you start installing, it is important to understand the hardware limitations of the device. Redmi Note 7 implements the following configuration:

  • πŸ“± Slot 1: nano-SIM only (4FF), supportive 4G/3G/2G. It works independently of the second slot.
  • πŸ”„ Slot 2 (hybrid): either nano-SIM (second SIM) or microSD (up to 256 GB!

The manufacturer used a hybrid tray format SIM + SIM/microSD, That's typical of Xiaomi's budget models. SIM MicroSD and microSD are combined: contacts for the memory card and the second SIM card are on the same board, but only one of the devices can be activated.

ParameterSlot 1Slot 2 (hybrid)
Type of cardnano-SIM (4FF)nano-SIM or microSD (up to 256 GB)
4G supportYes.Yes (SIM only)
File system formatβ€”FAT32, exFAT (recommended)
Hot replacement.No.No (reboot required)

⚠️ Note: If you install a microSD hybrid slot, the second one is SIM-The card will automatically turn off, and vice versa.Switching between modes requires the phone to be completely turned off - hot replacement is not supported!

πŸ“Š How to use slots in Redmi Note 7?
Two. SIM-map
One SIM + memory card
Only one SIM.
Other

Step-by-step: how to insert two SIM and memory card

While it’s impossible to use two SIMs and a microSD at the same time, you can dynamically switch between configurations.

Preparation of maps

Before installation, check:

  • πŸ” Format SIM: Both cards must be nano-SIM (4FF). If you have a micro-SIM or mini-SIM, cut it with an adapter or contact the operator.
  • πŸ’Ύ MicroSD: The card must be formatted in FAT32 exFAT. NTFS unsupported!
  • 🧹 Cleanliness: wipe the cards contacts with a dry wipe – dust or fat can cause failures.

2. Removal of the tray

To access slots:

  1. Turn off your phone (required!).
  2. Find on the left side of the device a small hole for the tray.
  3. Insert a paper clip or a special key from the kit into the hole until the tray is pushed out.
  4. Carefully remove the tray completely.

β˜‘οΈ Preparation for map installation

Done: 0 / 4

3. Installation of maps

Depending on the configuration required:

Option 1: Two SIM-map

  • Place the first nano-SIM in slot 1 (top).
  • The second nano-SIM is installed in slot 2 (bottom), contacts down.
  • Make sure the cards fit tightly to the stops.

Option 2: One SIM + memory card

  • Place the nano-SIM in slot 1.
  • In slot 2, install microSD (contacts upwards!).
  • Click the tray until the characteristic click.

⚠️ Note: If the phone does not see the memory card after installation, check:

MicroSD orientation correct (contacts must be on top) No damage to slot contacts (use flashlight) Card compatibility: some SanDisk Ultra models older than 2018 may not be recognized.

πŸ’‘

If the phone doesn’t see the second SIM, try swapping the cards. Sometimes slot 2 gets cranky with certain carriers (like Tele2).

Alternative ways to expand memory

If you need two SIMs and additional memory, consider these options:

1. USB-OTG + flash drive

With help. OTG-adapter (cost) ~200β‚½) You can plug in an external flash drive or even a hard drive:

  • πŸ”Œ Support FAT32, exFAT, NTFS.
  • πŸ“ Ability to connect drives up to 2 TB.
  • πŸ”„ Hot connection (without rebooting).

Disadvantages: the flash drive will stick out of the connector, which is inconvenient for constant use.

2. Cloud storage

Services like Google Drive, Mi Cloud or Yandex Disk allow you to automatically back up photos, videos and documents. Set up autosynchronization in Settings β†’ Xiaomi Accounts β†’ Mi Cloud.

Adapters "2 SIM + microSD"

There are adapters on the Internet that promise to put two SIMs and a microSD in one slot.

  • ❌ Physically blocking the second person's contacts SIM microSD installation.
  • ❌ Can damage the slot due to non-standard thickness.
  • ❌ Not certified by Xiaomi (risk of loss of warranty).
Why are the 2 SIM + microSD adapters not working?
In the Redmi Note 7 hybrid slot, the contacts for the second SIM and microSD are combined on the same board, but controlled by different controllers. The adapter cannot physically connect both devices at the same time - this is a limitation of the hardware architecture, not software.

Frequent mistakes and their solutions

Even with the right installation, users face problems.

Problem.Possible causeDecision
The phone doesn't see the second SIMImproper orientation of the mapTurn the nano-SIM (contacts down)
MicroSD is defined as damagedIncompatible file systemFormat in FAT32 via PC
Slot 2 doesn't work at allMoisture or dust intrusionDry your phone for 24 hours, clean the slot with alcohol
4G only works with one SIM.Limitation of Snapdragon 660 modemB Settings β†’ SIM-Select the cards prioritize SIM for 4G

⚠️ Warning: If the phone starts to overheat or discharge quickly after installing the memory card, remove it immediately! This is a sign of incompatibility of the memory controller with the device's firmware.

How to Optimize Memory Use Without a MicroSD

If you decide to do without a memory card, use these tips to make room:

  • πŸ“Έ Photo/video: Include Settings β†’ Warehouse β†’ Make room β†’ Removal of duplicates.
  • 🎡 Music: Use streaming (Spotify, Yandex Music)>) offline.
  • πŸ“± Cash: Clean the app cache once a week through Settings β†’ Annexes.
  • πŸ”„ Data Transfer: Move files to PC USB (MTP-regime).

Lifehack: In Redmi Note 7, you can transfer some applications to the memory card (if you have one installed), even if it is system utilities.

  1. Go to Settings β†’ Applications.
  2. Select the appropriate app (such as Facebook).
  3. Click Warehouse β†’ Change β†’ SD Card.

⚠️ Not all apps support portability (for example, WhatsApp cannot be moved).

πŸ’‘

Regularly cleaning the cache and transferring media files to the cloud can save up to 30% of internal memory without using microSD.

Can Redmi Note 7 use two SIMs and microSDs at the same time?
No, it's not possible at the hardware level. Guild slot 2 doesn't physically support the second SIM and memory card simultaneously. Any adapters or "life hacks" from the Internet are a scam or a risk of damage to the device.
Which memory card is better for Redmi Note 7?
We recommend models: SanDisk Ultra microSDXC (A1, UHS-I) - the optimal price/quality ratio. Samsung EVO Plus - high read/write speed (up to 100 MB / s). Kingston Canvas Go! - budget option for storing photos / videos. Avoid cards without brand logos (risk of counterfeit) and models with UHS-II - they will not give speed gain in the Redmi Note 7.
Why doesn’t your phone see a 128GB memory card?
Probable reasons: The card is formatted in NTFS or exFAT with a cluster >32 KB. Reformat it to FAT32. Fake card (real volume less than claimed). Check with H2testw. Slot contacts are contaminated. Clean them with a cotton swab dipped in isopropyl alcohol.
How to transfer applications to a memory card?
Instructions: Install the memory card in slot 2. When you first connect, select Use as internal memory (note: the card will be encrypted!). Go to Settings β†’ Annexes β†’ [select the application] β†’ Warehouse β†’ Change. ⚠️ After formatting the card as internal memory, it will not be read on other devices without resetting!
What to do if the slot for SIM-card broke?
If the tray is not fixed or the cards are not recognized: Try to bend the metal contacts of the tray carefully with a flat screwdriver. Blow the slot with compressed air (a canister for cleaning equipment). Contact the Xiaomi service center - replacing the slot will cost you a lot of money. ~1500β‚½. Do not use superglue or tape to fix the tray - this will aggravate the problem!