How to insert a memory card in Xiaomi Redmi Note 7: instructions with photos and tips for setting up

Xiaomi Redmi Note 7 is one of the most popular mid-range smartphones, but its built-in memory (32/64 GB) often becomes a bottleneck for active users. Installing a microSD card solves the problem of lack of space for photos, videos and applications, but beginners have questions: how to insert a card, how much to choose and what to do if the phone does not see it?

In this article you will find a step-by-step instruction with a photo, deal with the nuances of the hybrid slot (where two are placed simultaneously). SIM-card SIM + microSD, learn how to transfer data to a memory card and avoid common errors, and we will also tell you which cards are compatible with the Redmi Note 7 and how to format them correctly.

Which memory card to choose for Xiaomi Redmi Note 7

The smartphone supports microSD up to 256 GB (officially announced by the manufacturer), but in practice, users successfully use cards up to 512 GB (for example, SanDisk Ultra or Samsung EVO Plus).

  • πŸ”Ή Speed class: optimally class 10 or UHS-I (U1/U3) videotape 4K. Class Cards 4/6 It will slow down when writing heavy files.
  • πŸ”Ή Format: MicroSDXC only (for cards) >32GB) or microSDHC (up to 32GB).Older microSD (up to 2GB) is not supported.
  • πŸ”Ή Brands: SanDisk, Samsung, Kingston or Transcend are less forged and more stable.
  • πŸ”Ή Hybrid slot: in Redmi Note 7 slot 2-in-1, So you have to choose between two. SIM-card SIM + microSD.

⚠️ Attention: Cheap cards without a brand often have understated real capacity and low speed. H2testw (Windows or SD Insight (Android) before purchase.

πŸ“Š How much memory card do you use in your smartphone?
Up to 32GB.
64GB
128GB
256 GB or more
I don't use it.

Preparing the phone before installing the memory card

Before you insert a microSD, follow a few simple steps to avoid problems:

  1. Turn off your smartphone. It's a must-do -- hot card replacement can cause your file system to crash.
  2. Check the battery. If the battery is less than 20% dead, you better recharge the device first. In rare cases, when you remove the tray, the phone can reboot.
  3. Back up the data (optional) if the card is new, this step is not necessary, but if you're transferring data from an old card, copy it to a PC.
  4. Prepare the tool: you will need a paper clip or a special key to extract the tray (goes with the phone).

⚠️ Warning: Do not use sharp objects (needles, knives) to remove the tray - this can damage the fixing mechanism.

πŸ’‘

If you don't have a paper clip, you can use a thin guitar mediator or a plastic nail blade, and the key is, don't put too much effort into it.

Step-by-step: how to insert a memory card in Redmi Note 7

Now, to the process itself, follow the instructions with the photo (if you don't have a physical phone on hand, follow the description):

  1. Find a tray slot. It's on the left side of the phone (if you look at the screen), and there's a little clip hole next to it.
  2. Remove the tray. Put the paper clip in the hole before you click, the tray will move out a little. Carefully pull it over. πŸ”΄ Important: Do not apply force if the tray does not come out. Try to slightly shake the paperclip or change the angle of pressing.
  3. Place a memory card. The tray has two nests: πŸ“± Upper - for nano-SIM (main) SIM-map). πŸ“± Lower - for nano-SIM or microSD (hybrid slot).

If you want to use a memory card, the second SIM-The microSD card is set down by the contacts (as in the photo below).

Put the tray back in. Make sure the card sits tightly in the nest and doesn't protrude beyond the edges. Carefully insert the tray before you click.

Turn on your phone and wait for the map to be initialized. The screen will see a notification "New" SD-map discovered".

The tray is removed carefully, without distortion |

Memory card inserted by contacts down |

Second second SIM-Deleted card (if microSD is used)|

The phone is turned off before installation-->

Setup of the memory card after installation

Once the phone recognizes the card, it needs to be configured. Redmi Note 7 will offer two uses:

Regime.DescriptionPlusesCons
Portable storageThe card is used as a removable drive (photo, video, music).βœ… Easy to retrieve and connect to other devices. βœ… No phone binding.❌ You can't move apps. ❌ Some games are not installed.
Internal memory.The map is formatted as part of the system (you can transfer applications).βœ… You can install applications on the map. βœ… More room for data.❌ The map cannot be retrieved without data loss. ❌ It will not work on other devices.

πŸ”Ή Recommendation: If you plan to use the card only for media files (photos, videos, music), choose portable storage. If you want to move applications, internal memory, but remember that after formatting, the data on the map will be deleted.

To change the settings later:

  1. Go to Settings. β†’ Warehouse.
  2. Tap on. SD-map.
  3. Select Settings β†’ Format as internal (or vice versa).

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Formatting the card as internal memory is irreversible for other devices, and then it will only work with this phone.

Typical errors and their solution

Sometimes, after installing the memory card, the Redmi Note 7 does not see it or gives out errors.

  • 🚫 Phone doesn't recognize the card: Check if the card is inserted correctly (contacts down). Reboot the phone. Try formatting the card on a PC in a format. FAT32 exFAT.
  • 🚫 Map is detected but not opened: The file system may be damaged. Connect the card to your PC and check for errors (chkdsk on Windows). If the card is new, format it directly on your phone.
  • 🚫 Slow write/read: Check the card speed class (should be Class 10 or U3). If the card is old, replace it – the speed decreases over time.
  • 🚫 Applications are not portable to the card: Make sure the card is formatted as internal memory. Some applications (such as WhatsApp or Banking apps) cannot be ported for security reasons.

⚠️ Warning: If the memory card suddenly stops being identified, don't try to force it out. First, restart the phone - it may be a temporary controller failure.

What to do if your phone is writing "SD-map damaged"
1. Don’t panic – data can be recovered. 2. Connect the card to your PC via a card reader. 3. Use programs like Recuva or PhotoRec to restore files. 4. After recovery, format the card in FAT32 (if up to 32 GB) or exFAT (if more). 5. If the card is not formatted, it is physically damaged and needs to be replaced.

How to transfer data to a memory card

Once you've set up the map, you can transfer files to it to free up your internal memory. Here's how to do this:

Method 1: Through the built-in file manager

  1. Open the File Manager (or File Manager) application.
  2. Go to the Internal Memory section.
  3. Select the files (photos, videos, music) you want to transfer.
  4. Click Move and select SD-map.

Method 2: Automatically save to the map

To save new photos and videos to microSD:

  1. Open the camera. β†’ Settings.
  2. Find the location of the conservation.
  3. Choose. SD-map.

Method 3: Application portability

If the card is formatted as internal memory, you can transfer some applications:

  1. Go to Settings β†’ Applications.
  2. Select the appropriate application.
  3. Press Warehouse. β†’ Change. β†’ SD-map.

⚠️ Note: Not all applications support portability, system utilities and some games (e.g, PUBG Mobile or Genshin Impact will remain in internal memory.

πŸ’‘

To speed up the transfer of a large number of files, connect the phone to the PC through USB-Cable and use Windows Explorer to copy.

How to properly remove a memory card

It's not enough to just pull a card out of your phone, it can lead to data loss.

  1. Open the map in the settings: Go to Settings β†’ Warehouse β†’ SD-Click Extract (or Disconnect) Wait for notification "SD-map safely retrieved".

Turn off the phone.

Remove the tray.

Delete the map.

πŸ”΄ What happens if you remove the card without repairing?

  • The files that were written at the time of extraction will be damaged.
  • In rare cases, the file system of the card can be damaged.
  • Android can start to slow down if the card was used as internal memory.

FAQ: Frequent questions about memory cards in Redmi Note 7

Can we use two? SIM-card and memory card simultaneously?
No, the Redmi Note 7 has a hybrid slot: either two or more. SIM-card SIM + microSD. You'll have to choose priority. SIM memory extension.
What is the maximum memory card supported?
Officially, up to 256 GB, but users successfully use 512 GB cards (for example, SanDisk Ultra). 512GB). The main thing is that the card is microSDXC format and has a high speed class (U3 Class 10).
Why does the phone write "SD-slow-card"?
This means that the card's write/read speed is lower than what's required for normal operation. Solutions: Buy a card with a U3 or V30 class. If the card is old, replace it - the speed drops over time. Format the card in exFAT (if the volume is >32 GB).
Can I use the memory card as an internal memory card and then return it to portable mode?
No. Once the card is formatted as internal memory, the file system changes to ext4 or f2fs, and it becomes incompatible with other devices, and to return it to portable mode, you have to format it completely (with the loss of all data).
What if the phone doesn’t see the card after the MIUI update?
Sometimes, after a firmware update, you'll have a microSD recognition failure. Try: Reboot your phone. Remove and paste the card again. Format the card on your PC in FAT32. If nothing works, reset (Settings β†’ About Phone β†’ Reset), but save the data beforehand.