Transferring data from Android to Xiaomi via Bluetooth: complete guide with nuances

Moving to a new smartphone Xiaomi is always an exciting moment, especially if you need to save all the important data from your old device. Many users choose transmission by Bluetooth as the most affordable method that does not require cables or the Internet. However, in practice, this method is fraught with a number of pitfalls: from file size limitations to compatibility problems between different versions Android and shell MIUI.

In this article we will analyze not only the basic steps of transferring contacts, photos and documents, but also reveal unique nuances of Bluetooth on Xiaomithat are rarely mentioned in standard instructions. For example, why on some models (Redmi Note 12, POCO X5) files are transferred in batches of 4 MB, but on Xiaomi 13 Ultra - without restrictions. Or how to bypass the error “The device does not support data exchange”, which occurs when connecting to phones on a pure Android (for example, Google Pixel).

You will also find out which data types are better do not transfer via Bluetooth (spoiler: these are applications and their settings), and what alternative methods should be considered for large amounts of information. Are you ready? Let's start with preparing the devices - this stage is often skipped, but in vain!

1. Preparing devices for data transfer

Before pairing phones via Bluetooth, there are several critical steps you need to take. Ignoring this step may lead to connection failures, data loss, or even MIUI freezing (especially on devices with Android 13+).

First, check MIUI version on the target device (Xiaomi). To do this go to Settings → About the phone → MIUI version. If the version is older MIUI 12, update the system - in older versions there is a bug with file sharing via Bluetooth, due to which the transfer is interrupted in 70-80% of cases.

• 📱 On the old phone (source): make sure that Bluetooth is turned on and the device is visible to others (Settings → Bluetooth → VisibilityOn some models (Samsung Galaxy, Huawei) this option is hidden in the additional settings.
• 🔋 Battery charge: on both devices should be at least 50%. Transferring large files (for example, videos) can drain the phone by 15-20% per hour.
• 📂 File optimization: if you plan to transfer photos, archive them in ZIP in advance. (via Files → Select → Compress). This will speed up the process by 3-4 times.
• 🔒 Permissions: on Xiaomi check that applications Files have access to the storage (Settings → Applications → Manage permissions → Files).

⚠️ Attention: If the old phone has Android 10 or lower, and on Xiaomi — Android 13+, you may need additional confirmation of the device pair via a QR code. This security mechanism appeared in MIUI 14 and often confuses users.

2. Connecting devices via Bluetooth: step-by-step guide

Now let's move on to the pairing process itself. On Xiaomi the algorithm is slightly different from the standard Android, so follow the instructions carefully. Errors at this stage are the most common cause of unsuccessful transfer.

Start by activating Bluetooth on both devices:

1. On Xiaomi (new phone) open Settings → Bluetooth and turn on the switch.
2. Press Search for devices and wait until the name of the old phone appears in the list.
3. On the old phone, confirm the pairing request. If a window with a digital code appears, check it on both devices.
4. On Xiaomi after successful connection, tap on the device name and select Transfer files (on some models this item is called Exchange data).

An important point: if the file transfer option does not appear on the screen Xiaomi after pairing, it means that the protocol OBEX (responsible for the exchange) is disabled. To activate it:

1. Go to Settings → Connections and sharing → Bluetooth.
2. Tap on the three dots in the upper right corner and select Advanced settings.
3. Turn on the switch Exchange files via Bluetooth.

Pairing of devices has been successfully completed|File sharing (OBEX) is enabled on Xiaomi|On the old phone, files are prepared for transfer|The devices are within a radius of 1 meter from each other-->

3. Transferring different types of data: what works and what doesn't

Bluetooth on Xiaomi supports the transfer of most types of files, but there are strict limitations that few people know about. For example, applications (APK) it is useless to transfer their data - they will not be installed on a new device due to a signature conflict. But contacts, photos and documents are transferred without problems if you follow the rules.

Let's look at each data type in more detail:

Data type	Supported?	Limitations	Recommendations
Contacts (vCard)	✅ Yes	Max. 1000 contacts per transfer	Export to .vcf file via Contacts → Settings → Export
Photos (JPEG, PNG)	✅ Yes	File size up to 50 MB (on MIUI 14 - up to 100 MB)	Compress via Gallery → Edit → Compress
Video (MP4, MOV)	⚠️ Partially	Max. 10 minutes of video in Full HD	Use QuickShare or cloud for large files
Documents (PDF, DOCX)	✅ Yes	No restrictions	Archive in ZIP for speed
Applications (APK)	❌ No	Will not be installed due to security	Download from Google Play on a new device

Special attention deserves transfer contacts. There is a bug: if the contacts on the source phone are saved in the account Xiaomi there is a bug: if the source phone has contacts saved in the account Googleand not in the device’s memory, they may not be transferred. To fix this:

1. On your old phone, open Contacts → Settings → Manage contacts.
2. Select Import/Export → Export to device memory.
3. Create a file .vcf and transfer it via Bluetooth.
4. On Xiaomi Import the file via Contacts → Settings → Import.

4. Typical errors and how to fix them

Even with proper preparation, users encounter errors when transmitting data via Bluetooth to Xiaomi. Let's look at the most common problems and their solutions, based on the analysis of forums 4PDA and Mi Community.

Error 1: "The device does not support data exchange"

This problem occurs when connecting Xiaomi to clean phones Android (for example, Pixel or Nokia). The reason is a protocol conflict OBEX. Solution:

• 🔄 Reboot both devices.
• 📱 On Xiaomi turn off Bluetooth, then turn on airplane mode for 10 seconds and activate Bluetooth again.
• 🔧 On the source phone, turn on the mode developer (Settings → About phone → Build number - tap 7 times) and activate the option Debugging via Bluetooth.

Error 2: Transfer is interrupted at 99%

Most often this happens due to low memory on Xiaomi or malfunction MIUI File Explorer. Check:

• 📁 Free space on the new device (must be at least 1 GB).
• 🔄 Reinstall updates for the application Files via Google Play.
• 🛠️ Clear the Bluetooth cache: Settings → Applications → Application management → Bluetooth → Clear cache.

Error 3: Contacts are not transferred

If the file .vcf has been transferred, but the contacts are not displayed:

• 🔍 Check if the contacts are duplicated with the account Mi Account (turn off synchronization in Settings → Accounts).
• 📇 Import contacts through Google Contactsrather than the standard application Contact.

⚠️ Attention: On devices with MIUI 14 i Android 13 After transferring large files (more than 1 GB), the error "The system interface has stopped" may appear. In this case, restart the phone and wait for the applications to optimize (takes 5-10 minutes).

5. Alternative methods of data transfer (if Bluetooth does not work)

If you encounter any problems. with intractable problems when transmitting over Bluetooth, consider alternative methods. Some of them are faster and more reliable, especially for large amounts of data.

1. QuickShare (formerly Nearby Share)

This tool is built into Google built in Android 10+ and allows you to transfer files at speeds of up to 10 MB/s (versus 1-2 MB/s for Bluetooth). To use:

• 🔗 Make sure that it is turned on on both phones QuickShare (Settings → Google → Devices and sharing).
• 📱 Select files in the application Files, tap Share → QuickShare.
• 🎯 On Xiaomi accept the incoming file.

2. Xiaomi Migration (official application)

For devices Xiaomi there is a proprietary migration tool that transfers not only files, but also settings, messages, call history. Download Mi Mover from Google Play to both devices and follow the instructions. Important: both phones must be connected to the same Wi-Fi network.

3. Cloud services

For transferring large volumes (video, music), it is more convenient to use clouds:

• 🌥️ Google Drive: 15 GB free, download speed depends on the Internet.
• ☁️ Mi Cloud: 5 GB free, integrated with MIUI.
• 📦 Telegram: you can send files up to 2 GB to "Saved messages."

How to speed up transmission via QuickShare?

1. Connect both devices to the same 5 GHz Wi-Fi network (faster than 2.4 GHz).

2. Turn off VPNs and firewalls (they may block local traffic).

3. Place phones no more than 50 cm apart.

4. Use the "Maximum speed" mode in the QuickShare settings (available on Android 12+).

6. Optimizing Bluetooth on Xiaomi for stable transmission

If you often transfer data via Bluetooth, it makes sense to optimize the settings Xiaomi to increase the stability of the connection. These tweaks are especially useful for devices with MIUI 13/14power-saving features that limit Bluetooth operation are enabled by default.

First, disable Adaptive Battery Saver For Bluetooth:

1. Go to Settings → Battery and Performance → Battery Saver batteries.
2. Select Savings settings → Advanced.
3. Find Bluetooth in the list and disable restrictions.

Secondly, change Bluetooth operating mode for maximum performance:

• 🔧 Enable developer mode (as described above).
• 📶 Go in Settings → Advanced → For developers.
• 🔄 Find the option Codec Bluetooth and select SBC (the most stable, although not the fastest).
• 📊 Activate Absolute volume to improve transfer quality.

Thirdly, if you often transfer files between the same devices, add them to trusted:

1. Open Settings → Bluetooth.
2. Tap on the name of the paired device.
3. Enable the option Trusted device.

7. Security when transmitting data via Bluetooth

Bluetooth connection is vulnerable to attacks like BlueBorne or Man-in-the-Middle, especially if you are in a public place (cafe, airport). To protect your data, follow these guidelines:

1. Turn off Bluetooth after transfer

Even if the devices are not connected, the active Bluetooth module can be detected by intruders. On Xiaomi you can configure automatic shutdown:

• 🔄 Go to Settings → Bluetooth → Advanced.
• 🕒 Enable the option Automatic shutdown i set a timer (for example, 10 minutes).

2. Use a PIN code to pair

On devices with MIUI 14 the first time you connect, you can set a PIN code (instead of the standard numeric code). To do this:

• 🔑 When requesting pairing on Xiaomi select Use PIN.
• 📝 Enter a unique code (for example, Xiaomi2026!) and confirm it on the second device.

3. Check the list of paired devices

Regularly remove unknown devices from the list:

1. Open Settings → Bluetooth.
2. Tap on the three dots in the upper right corner and select Delete all devices.
3. Pair only those gadgets you trust.

⚠️ Attention: Some firmware MIUI (especially custom) have a vulnerability that allows you to connect to your phone without confirmation. To check its availability, try connecting to your Xiaomi from another device without entering the code. If the connection is established, update the firmware urgently!

8. Frequently asked questions (FAQ)

❓ Is it possible to transfer applications (APK) via Bluetooth to Xiaomi?

Technically yes, but you won’t be able to install them. The reason is a conflict of digital signatures. MIUI blocks the installation of APKs transferred via Bluetooth for security reasons. Alternative: download the APK to Google Drive and download it to Xiaomi via a browser.

❓ Why are photos transmitted in low quality?

This is due to the compression settings in MIUI. To transfer originals:

1. Open Gallery → Album → Select photo.
2. Tap Share → Bluetooth.
3. In the transfer window select Original quality (if the option is not available, archive the photo in ZIP).

❓ How to transfer message history (SMS) via Bluetooth?

Bluetooth does not support SMS transfer directly. Use:

• Mi Mover (official application Xiaomi for migration).
• SMS Backup & Restore (application from Google Play, exports SMS to XML).

Important: to restore SMS to Xiaomi the application must have rights Android Accessibility.

❓ How long does it take to transfer 1 GB of data via Bluetooth?

Depends on the model Xiaomi and version MIUI:

• Xiaomi 13/14 Pro (Snapdragon 8 Gen 2): ~15-20 minutes.
• Redmi Note 11/12 (Snapdragon 6xx): ~30-40 minutes.
• POCO M5 (Helio G99): ~45-60 minutes.

To speed up, turn off background applications and put the phone in mode Performance (Settings → Battery → Performance Mode).

❓ Is it possible to transfer data from iPhone to Xiaomi via Bluetooth?

No iOS limits file sharing via Bluetooth with devices on Android. Alternatives:

• AirDrop → QuickShare: on Xiaomi turn on QuickShare in "All contacts" mode.
• iCloud → Google Drive: download files from iCloud.com to PC, then to Xiaomi.
• Lightning-USB-C cable: use adapter for direct connections.