Bluetooth devices pairing on Xiaomi Redmi 9 is usually smooth, but sometimes you have to remove an old device from the list of connected devices, which may be necessary if the headset or speaker is getting glitchy, does not connect correctly, or you just want to clear the list of unnecessary devices, but not all users know how to do this correctly โ especially if the device is not displayed in the list or is not removed in the standard way.
In this article, weโll look at all the possible ways to remove Bluetooth devices on Redmi 9, including hidden settings and forced resets. Youโll learn how to clean the list of associated gadgets, what to do if the โForgetโ button is inactive, and how to avoid typical reconnection errors, and why some devices can get stuck in your smartphoneโs memory and how to fix it without completely resetting it.
Why your device may not be removed from Bluetooth on Redmi 9
Before we get to the instructions, itโs important to understand why Xiaomi Redmi 9 sometimes refuses to โforgetโ the paired devices.
- ๐ Unstable connection: If a device is currently connected or trying to connect, the system may block its removal.
- ๐ฑ Bluetooth cache error: Temporary module files may contain outdated pairing data.
- ๐ง Failure in settings MIUI: rarely, but there are firmware bugs when the interface does not respond to commands.
- ๐ Protected devices: Some gadgets (such as smart locks or medical equipment) require additional confirmation to remove.
- ๐ด Sleeping device: If the headset or speaker is discharged, the smartphone may not see it as โactiveโ to remove.
If you're having a problem where the Forget this device button doesn't press, or the device reappears after you delete it, it's probably one of these factors that's at fault, and then we'll look at how to get around each of these problems.
Method 1: Standard removal via Bluetooth settings
This is the simplest and most obvious method, and it works 90 percent of the time.
- Open the Settings app on your Redmi 9 (the gear icon on the home screen or in the app menu).
- Go to Connections and Sharing (or Bluetooth, depending on the MIUI version).
- Activate Bluetooth if it is turned off and wait until the smartphone finds all available devices.
- In the list of Associated devices, find the one you want to remove and tap on it.
- Click the Forget this device button (or the basket icon in the upper right corner).
- Confirm the action in the window that appears.
If the device is successfully removed, its name will disappear from the list, but there are times when this method does not work:
- ๐ด Forget the button is inactive (grey).
- ๐ The device disappears from the list, but reappears after the reboot.
- โ ๏ธ When you press the device, nothing happens.
In such situations, move on to the following ways.
โ๏ธ Preparation before removal of the device
Method 2: Remove from the All Settings menu (hidden method)
In some versions of MIUI (especially on Redmi 9 with firmware 12.5 and below), the standard Bluetooth menu may not show all the devices paired, in which case an alternative path will help:
- Open Settings and go to About Phone.
- Find All Specifications (or MIUI Version) and tap it 5-7 times until you become a developer!
- Go back to the main Settings menu and open a new section for developers.
- Scroll down and find the Bluetooth Menu (or Bluetooth Settings).
- Here you will see an extended list of all devices ever paired, including those that donโt appear in the standard interface.
- Select the desired device and press Remove or Reset pairing.
This method is especially useful if youโve connected smart devices (like fitness bracelets or wireless headphones) to your smartphone that donโt appear on the main list, but be careful: itโs easy to change critical settings on the developer menu, so donโt edit other settings unnecessarily.
What to do if there is no โDevelopersโ item?
Method 3: Reset Bluetooth settings (without data loss)
If the device persists in not wanting to move away, you can reset the Bluetooth module without completely resetting the smartphone, which will remove all the associated devices and return the connection parameters to the factory.
- Open Settings โ Connections and Sharing โ Bluetooth.
- In the upper right corner, press three dots (โฎ) and select Bluetooth Settings.
- Scroll down and find Reset Settings (or Clear Device List).
- Confirm action. All the associated devices will be removed.
Once reset, you'll have to reconnect all the devices, but this often solves the problem with the "hung" gadgets. If this item is not in your version of MIUI, try an alternative method:
1. Open "Settings โ Applications โ Application Management".
2. Find "Bluetooth" (or "Bluetooth Share").
3. Click "Storage" โ "Clear Cache" and "Clear Data".โ ๏ธ Attention: Clearing the Bluetooth app data will remove all the associated devices and may reset individual connection settings (e.g., priority of connecting to headphones).
Method 4: Forced removal via ADB (for power users)
If none of the previous methods worked, you can use ADB (Android Debug Bridge), a tool for debugging Android devices, which requires connecting your smartphone to your computer and basic command line knowledge.
Here's the step-by-step instruction:
- Download and install ADB Tools on your computer.
- On your smartphone, activate Developer Mode (as in Method 2) and enable Debugging over USB.
- Connect Redmi 9 to your computer via USB-cable (use the original cable for a stable connection).
- Open the command line (Windows) or terminal (macOS/Linux) and type:
adb devices(Your device should be displayed)
adb shellsu(Allow access to root if requested)
pm clear com.android.bluetoothThis command will clear all data and cache of the Bluetooth module, which will result in the removal of all the associated devices. If you only need to delete one device, use:
settings delete global bluetooth_devicesAfter you execute the commands, restart your smartphone. All devices will be deleted from memory.
โ ๏ธ Attention: use ADB root can cause system instability if the commands are entered incorrectly.
๐ก
Before using ADB, back up your important data. In Redmi 9, go to Settings โ System & Device โ Backup and save your settings to Mi Cloud or memory card.
Method 5: Complete network reset (last resort)
If none of these methods work, the last option is to reset the network settings, and that will delete all the stored Wi-Fi networks, mobile Internet and Bluetooth pairing data.
- Open Settings โ Connections and Sharing โ Network Reset.
- Select Reset Network Settings (could be called Wi-Fi Reset, Mobile Network, and Bluetooth).
- Confirm the action by entering a password or pattern lock.
- Wait for the smartphone to reboot.
After resetting, all Bluetooth devices will be deleted, but you will also have to reset:
- ๐ถ Connect to Wi-Fi networks.
- ๐ฑ Set up mobile internet (APN).
- ๐ To pair headsets, speakers and other gadgets.
| Deleting method | Difficulty | Remove all the devices? | You need a PC? | Risk to data |
|---|---|---|---|---|
| Standard removal | โญ | No. | No. | Absent. |
| Menu for developers | โญโญ | No. | No. | Low. |
| Resetting Bluetooth settings | โญโญ | Yes. | No. | Medium. |
| ADB-team | โญโญโญ | Yes. | Yes. | High-pitched |
| Resetting the network | โญโญโญ | Yes. | No. | High-pitched |
๐ก
Before applying radical methods (ADB or network reset), try to reboot your smartphone โ sometimes this solves problems with โhungโ Bluetooth devices.
What to do if the device is not removed anyway
If youโve tried all the ways but the Bluetooth device still appears on the list, the following reasons are possible:
- ๐ง Hardware failure: damage to the Bluetooth module (for example, after falling or getting moisture).
- ๐ฑ Firmware conflict: if a custom firmware is installed on a smartphone, it can block changes in system settings.
- ๐ Change protection: Some enterprise devices have security policies that prohibit removal of certain gadgets.
In such cases, there are two options:
- Update your firmware to the latest version of MIUI (check in Settings โ About Phone โ System Update).
- Contact the service center if the problem is hardware. For Redmi 9, official Xiaomi centers offer diagnostics of a Bluetooth module for 500-1000 rubles.
If the smartphone is warranty, do not try to disassemble it yourself - this will void warranty obligations.