How to Fix a Boot Loop on a Xiaomi Mi 4i

A boot loop can be a frustrating issue, especially when it happens on a device like the Xiaomi Mi 4i. This problem usually occurs when the phone gets stuck in a continuous restart cycle, making it impossible to use. Fortunately, there are steps you can take to fix a boot loop on your Xiaomi Mi 4i. This guide will walk you through the process of flashing the firmware to resolve the issue. Additionally, we will cover reasons why the Xiaomi Mi 4i might not connect with the flashing tool, troubleshooting tips, and the minimum battery requirements for a successful flash.

Reasons for Xiaomi Mi 4i Not Connecting with the Tool

Before we dive into the steps to fix the boot loop, let's discuss some common reasons why your Xiaomi Mi 4i might not connect with the flashing tool:

1. Incorrect Drivers: If the proper Qualcomm USB drivers are not installed on your computer, the device may not be recognized when connected via USB.

2. Faulty USB Cable or Port: A damaged USB cable or faulty USB port can prevent a successful connection between your device and the computer.

3. Locked Bootloader: A locked bootloader may prevent the device from connecting to the flashing tool, especially in EDL mode.

4. Misconfigured Device Settings: The device may not connect if it is not in the correct mode (e.g., EDL mode) or if USB debugging is not enabled.

5. Hardware Issues: Physical damage to the phone’s USB port or internal components can cause connection problems.

Troubleshooting Connection Issues

If your Xiaomi Mi 4i is not connecting to the flashing tool, try the following troubleshooting steps:

• Reinstall Drivers: Uninstall any existing Qualcomm USB drivers and reinstall the correct drivers.

• Use a Different USB Cable or Port: Switch to a different USB cable or port to rule out hardware issues.

• Check Bootloader Status: Make sure the bootloader is unlocked. You can check this in the Developer Options under the Settings menu.

• Enter Correct Mode: Ensure that the phone is in EDL (Emergency Download Mode) before attempting to connect it to the computer.

• Restart the Computer: A simple restart can sometimes resolve connection issues caused by background processes.

Minimum Battery Requirements for Flashing

It is crucial to have a minimum battery level of at least 50% before attempting to flash your device. A low battery level during the flashing process can cause the device to shut down unexpectedly, potentially leading to data corruption or bricking the device.

Required for Xiaomi Mi 4i 2015015

• Xiaomi Mi 4i 2015015 device with well battery charged, do not try with low battery
• Xiaomi Mi 4i 2015015 Stock ROM Firmware | Fastboot ROM | Recovery
• Xiaomi Mi 4i 2015015 QFIL Flash Tool | Download
• Xiaomi Mi 4i 2015015 USB (Flashing) Driver | Download
• Micro USB cable with Good Quality
• Computer or Laptop

Steps to Fix a Boot Loop on Xiaomi Mi 4i

Follow these steps to flash the firmware on your Xiaomi Mi 4i and fix the boot loop:

1. Download Required Files:

   • Download the tested firmware, flash tool, and Qualcomm USB drivers. Ensure that all files are compatible with your Xiaomi Mi 4i model.

2. Extract the Files:

   • Use WinRAR or another extraction tool to unzip all downloaded files to a location of your choice, such as your desktop.

3. Install Qualcomm USB Drivers:

   • Navigate to the Driver folder and run Qualcomm_USB_Driver_Setup.exe. Follow the on-screen instructions to complete the installation.

4. Install QPST Tool:

   • Open the QPST.WIN.2.7_Installer-00430.1 folder and run setup.exe to install the QPST tool.

5. Open QFIL Tool:

   • Go to C:\Program Files\Qualcomm\QPST\bin and open the QFIL tool.

6. Select Programmer File:

   • In QFIL, go to the "Select Programmer" option and click on the "Browse..." button. Navigate to the SW folder and select prog_emmc_firehose_8929.mbn.

7. Load XML Files:

   • Click on the "Load XML..." button and select rawprogram0.xml first. Then, select patch0.xml from the ferrari_global_images_V8.0.1.0.LXIMIDG_20160805.0000.29_5.0_global_a9457f4040\images\ folder.

8. Prepare the Device:

   • Power off the Xiaomi Mi 4i. Press and hold the Volume Up + Down buttons simultaneously and insert the USB cable to connect it to the computer. Wait for the drivers to install. If the phone does not enter EDL mode, use a Deep EDL cable to force it.

9. Begin Flashing:

   • Once the device is detected by QFIL, click the "Download" button. The flashing process will begin, and you must wait for it to complete.

10. Complete the Process:

• Once the flashing is finished, your Xiaomi Mi 4i will automatically reboot. If the boot loop is resolved, your device should now boot normally.

Conclusion

Fixing a boot loop on your Xiaomi Mi 4i can seem daunting, but by following these steps carefully, you can restore your device to working order. Always ensure your device has sufficient battery power before flashing, and troubleshoot any connection issues before starting the process. If you encounter any issues, don't hesitate to leave a comment below for assistance!