How to transfer data from Android to Xiaomi Redmi 9T: full guide 2026

Transfer data from the old smartphone to the new Xiaomi Redmi 9T — In practice, users face lost contacts, incomplete photo synchronization, or problems with porting applications. This is especially true for owners of budget models, where the amount of internal memory is limited, and each megabyte is in the account.

In this article, we will examine all the current ways of data migration – from standard tools Google and Mi Account to little-known features like Mi Mover and manual transfer through the Internet. OTG. We will pay special attention to the nuances related to Redmi. 9T: firmware MIUI 12/13, limitations on background synchronization and specifics of working with microSD cards.

If you have just unpacked a new Redmi 9T If you want to save time, start with automatic methods (sections 2 and 3). For those who prefer complete control of the process, manual methods will do (sections 4-6.) And if the old phone is no longer turned on, we have a solution for this case (section 7).

1.Preparation for transfer: what to do before the beginning

Before you start migrating, follow the mandatory preparatory steps – this will save you from data loss and save you hours on re-synchronization.

✅ Check the version. MIUI on the Redmi 9T. Go to Settings. → The phone. → Version. MIUI. If the version is older MIUI 12.5, update the firmware through Settings → System Update: Older versions may not support Mi Mover or have Google Account Sync bugs.

✅ Clean up the garbage on your old phone. Delete duplicate photos (use Google Photos or Gallery Go), clear the app cache in Settings → Storage. It'll reduce the amount of data that's being transmitted and speed up the process.

✅ Charge both devices to at least 50%.Transfer data via cable or Wi-Fi Direct is actively consuming charge, especially on Redmi 9T with its 6000mAh battery but with an energy-efficient Snapdragon 662 processor.

⚠️ Note: If the old phone has data encryption enabled (Settings) → Security → Encryption, transfer via cable can take 2-3 times longer, we recommend temporarily disable encryption or use cloud methods.

📌 List of data that can be transferred:

• 📞 Contacts (including groups and notes to numbers)
• 📷 Photo and video (with preservation) EXIF-marker)
• 🎵 Music and audio files (except DRM-track-protected)
• 📱 Applications and their data (not all applications support portability)
• 📅 Calendars and reminders (only if synced with Google)
• 📍 Notes and SMS (requires special tools)

❌ What cannot be transferred automatically:

• 🔒 Wi-Fi passwords (you need to enter manually or use Mi Cloud)
• 🎮 Save games (only if the game supports cloud backup)
• 📊 System settings (brightness, gestures, sound profiles)
• 💳 Bank application data (requires re-authorization)

Method 1: Automatic transfer via Mi Mover (recommended for MIUI)

Mi Mover is Xiaomi’s proprietary tool optimized for data transfer between devices MIUI. It works without a PC, saves folder structure, and even supports some system settings, the main advantage of saving application data (for example, progress in games or chats in Telegram), which Google does not know how to do.

⚡ Requirements for Mi Mover operation:

• Both phones should be on MIUI 9 or newer.
• On the Redmi. 9T At least 1 GB of memory should be free.
• Wi-Fi and Bluetooth should be enabled.

🔧 Step-by-step instruction:

1. On the Redmi. 9T When you first turn on, select Data Portability. If your phone is already set up, go to Settings. → Memory. → Data Transfer (Mi Mover).
2. On your old phone, install Mi Mover from Google Play (if it is not in the firmware).
3. Select the device role: new phone (Redmi) 9T) — "I'm new," old "I'm old".
4. Scan it. QR-Redmi screen code 9T Use your old phone or connect via Wi-Fi Direct.
5. Select data for transfer (contacts, photos, applications) and confirm the beginning.
6. Wait until the completion (can take anywhere from 10 minutes to 1 hour depending on the volume).

📊 Transfer speed depending on data type (Redmi tests) 9T):

⚠️ Warning: If the transfer is interrupted during the application transfer phase, do not restart the process immediately. Wait 5 minutes - Mi Mover can automatically resume transmission from the cliff site. Forced restart will lead to duplication of data.

Both phones are charged at least 50 times%|On the Redmi. 9T free-memory|Wi-Fi and Bluetooth included|Power saving mode is disabled on the old phone|The latest version of Mi Mover is installed (if downloaded from Play Market)-->

💡

Mi Mover is the only way to transfer application data (for example, saving games or configuring messengers) without root rights.

Method 2: Sync through Google Account (universal method)

If you already have a Google Account, this is the easiest way to do it, and it works on any Android device, but it has limitations.

🔧 How to Transfer Data to Google:

1. On your old phone, go to Settings. → Accounts. → Google and make sure that sync is enabled for Contacts, Calendar and Google Photos.
2. Wait for the sync to complete (check in Settings → Accounts → Google → Account Sync).
3. On the Redmi. 9T When you first turn on, select “Copy Data from Old Device” and log in to the same Google Account.
4. Select data for recovery (contacts, photos, apps from the Play Market).

⚡ Nuances for Redmi 9T:

💡 How to speed up synchronization:

• Connect both phones to the same Wi-Fi network (not mobile internet).
• On the Redmi. 9T Turn off "Adaptive Charging" in Settings → Battery – this will speed up the background processes.
• If your photos are not synced, check if the Traffic Saving mode is enabled in Google Photos.

💡

If after the transfer to Redmi 9T No contact is displayed, check in the contact → Settings → Accounts, whether Google sync is enabled, sometimes it turns off automatically after you change device.

Method 3: Transfer over a microSD card (for large volumes)

If you have a microSD card (up to 512GB supports Redmi) 9T), This is a method that's good for transferring photos, videos and documents, and the main advantage is that you don't need the Internet, and the speed is limited only by the class of the card (UHS-I U3 recommended for video 4K).

🔧 Instructions:

1. Insert the card into an old phone and copy files to it through Explorer or Google Photos (export).
2. Remove the card and paste it into Redmi. 9T (slot SIM plug-in).
3. Open the Explorer on Redmi 9T, find the folder DCIM Download on the map and copy the files to internal memory.

⚠️ Limitations of method:

• 📱 Applications and their data cannot be transferred – only media files and documents.
• 🔄 If the card was formatted as internal memory on an old phone, Redmi 9T You'll have to format it again (data loss!).
• 🐢 Copy speed on Redmi 9T microSD UHS-I — about 20-30 MB/s (for comparison: USB 2.0 gives 40-50 MB/s).

📌 How to avoid loss of photo quality:

• Use class cards A2 or U3 — They are optimized for small files (like photos).
• Do not copy files via Windows (if you connect the card to a PC) – it is better to use Explorer on Android to avoid problems with filename encoding.
• For the video. 4K Turn off the Redmi. 9T Option "Video Optimization" in Settings → Memory.

5. Method 4: Cable transfer USB (OTG PC)

If you don't have a memory card or your Wi-Fi isn't stable, a direct cable connection is the most reliable option.

• 🔌 Cable USB-C — USB-C (If both phones are modern).
• 🔌 adapter OTG (If you have an old microUSB phone).
• 💻 Computer (optional, for intermediate copying).

🔧 Option 1: Direct connection (without PC)

1. Connect your phones with a cable. 9T Select the "File Transfer" mode" (MTP).
2. On the old phone, in the connection notification, select "Data Transfer" or "USB-modem (if not, check the cable!).
3. Open the Explorer on Redmi 9T, Find the folder of your old phone (usually “Inner Memory”) and copy the files you want.

🔧 Option 2: Through a computer (more reliable)

1. Connect your old phone to your PC, copy the data to a folder on the disk.
2. Turn off your old phone, connect Redmi 9T and move the files back.
3. Use it to accelerate. USB 3.0 (blue port) – copy speed will increase to 80-100 MB / s.

A critical nuance for Redmi 9T: when connected through OTG the phone may not see the external drive if the settings include the option "Charge through" USB". Turn it off in Settings. → Battery → Charging through USB.

⚠️ Frequent mistakes and decisions:

• 🚫 "Device not identified" → Check the cable (try another) or turn on Debugging by USB (Settings → The phone. → Version. MIUI — Tap 7 times, then Settings → Additionally. → For developers → Debugging by USB).
• 🚫 "No access to the folders" → On an old phone, unlock the screen (sometimes you need confirmation when connecting).
• 🚫 "Slow transmission" → Close all apps on both phones (especially Google Photos and instant messengers).

💡

Connecting via PC is the only way to transfer data if the old phone is broken, but the screen is still working (can be controlled via mouse with a computer). OTG-adapter).

6. Method 5: Cloud Services (Dropbox, Yandex.Disk, Telegram)

If you have slow Internet or no cable, cloud storage is the answer. We tested 3 services on Redmi. 9T And they've identified the pros and cons of each.

📊 Comparison of cloud services for data transfer:

*There is no limit on the size of Telegram, but files larger than 2 GB cannot be sent.

🔧 How to transfer data through Yandex.Disk (Step-by-step):

1. On an old phone, install Yandex.Disk and upload files to a folder (e.g, "Redmi9T_Backup").
2. On the Redmi. 9T Install the same app and sign in to the same account.
3. Download files to internal memory via "Save to Device".

⚠️ Important observations:

• 📁 The folder structure may be disrupted when downloaded. To avoid chaos, archive your data to.zip before downloading.
• 🔒 Privacy: Do not upload password screenshots or documents to the cloud. Use Telegram with a secret chat (encryption is end-to-end).
• 📶 Mobile Internet: if you have unlimited, turn on "Modem Modem" on Redmi 9T And connect the old phone to its hotspot, and it'll get faster.

💡 Lifehack for photo:

If you only need to transfer photos, use Google Photos in the "Original Quality" mode (if there is space in the account) or Telegram:

1. Open the dialog "Saved Messages".
2. Press "Clip" → "File" and select a photo.
3. On the Redmi. 9T Download them back through the same dialogue.

7. Method 6: Data portability if the old phone is not turned on

If the screen is broken, the phone doesn't respond to charging, or it doesn't show any signs of life, not all is lost.

🔧 Option 1: Remove the memory card (if it was)

1. Remove the microSD from your old phone and paste it into Redmi 9T.
2. If the card was encrypted, it will have to be unlocked via PC (use it). 7-Zip backup).

🔧 Option 2: Connect to the PC in recovery mode

1. If the phone vibrates when connecting to a charger, try clamping down the Power + Volume Up for 10 seconds to log in to Fastboot.
2. Connect to the PC and use it ADB For data extraction: adb pull /sdcard/ C:\Redmi9T_Backup
3. If ADB Do not detect the device, try Dr.Fone or Tenorshare 4uKey (Pay, but supports data extraction from locked phones).

🔧 Option 3: Contacting the service centre

• If data is critical (such as wedding photos), service centers can extract information from flash memory via a flash drive. JTAG Chip-off. Cost: 3-10 thousand rubles.
• Check before visiting if they work with your phone model (some budget models are not supported).

⚠️ Warning: If the old phone was tied to Mi Account and you don't remember the password, after resetting via Fastboot, you will need to unlock the account. 9T It can be done through http://i.mi.com, But you'll need a linked phone number.

8. Frequent errors and their solutions

Even when you follow the instructions, you have problems. TOP-5 Errors in transferring data to Redmi 9T and ways of correcting them.

🛑 Error 1: "Mi Mover can't see the old device"

• 📌 Make sure that both phones are enabled with Wi-Fi Direct (Settings) → Connections → Wi-Fi Direct).
• 📌 Restart both devices and try to connect again.
• 📌 If you use VPN, Turn it off – it can block the local connection.

🛑 Error 2: Google Photos are not syncing videos"

• 📌 Check if Save Place is enabled in Google Photos (it compresses the video to the 1080p).
• 📌 Go to Settings. → Backup and select “Original Quality” (if there is space in your account).
• 📌 Videos longer than 1 hour may not be uploaded – break them down via Video Editor.

🛑 Error 3: Apps are not restored from Google"

• 📌 Make sure you're on Redmi. 9T The option “Auto-Update Apps” is included in the Play Market.
• 📌 Some applications (such as banking) are not automatically restored, but must be installed manually.
• 📌 If apps are installed but data is lost, check if the app supports cloud backup (e.g. WhatsApp makes a backup in Google Drive).

🛑 Mistake 4: “Redmi 9T Can't see files on the memory card"

• 📌 Format the card in exFAT (supports files) >4 GB via PC.
• 📌 Check if the "Map" mode is on. SD As an internal memory in the settings → Memory.
• 📌 If the card has been used on another phone before, try rebooting Redmi. 9T cardboard.

🛑 Mistake 5: “Transfer interrupted by 99%"

• 📌 Do not remove the cable or lock the screen – wait until it is completed (may take up to 10 minutes).
• 📌 If you are using Mi Mover, check if the phone is overheated (on Redmi). 9T in long-term transmission can trigger trottling).
• 📌 Restart the transfer, but select only those data that did not have time to copy.

FAQ: Answers to Frequent Questions