If your Xiaomi phone running HyperOS is having network issues or restarts unexpectedly, don’t worry! Updating the modem firmware could be the fix you need. Luckily, you can do this even with a locked bootloader. Let’s dive into the steps to get your phone back in action.
What’s Modem Firmware and Why Is It Important?
Understanding Modem Firmware
Modem firmware helps your phone connect to networks like 4G, 5G, Wi-Fi, and Bluetooth. If it’s not working correctly, you might face weak signals, dropped calls, or random restarts. Therefore, updating the firmware can solve these problems and boost your phone’s performance.
Flashing the Modem with a Locked Bootloader
You can update the modem firmware even with a locked bootloader. Here’s how:
Download the Fastboot ROM
First, visit Xiaomi’s official firmware page and download the Fastboot ROM for your phone model. Make sure to select the right version for your region.
Install MiFlash Tool
Next, download the MiFlash Tool from the official Xiaomi site. This tool is needed for flashing the firmware.
Enter Fastboot Mode
Then, turn off your phone. Press and hold the Volume Down and Power buttons until the Fastboot logo appears.
Flash the ROM
Connect your phone to your PC using a USB cable. Open MiFlash Tool and choose the folder with the Fastboot ROM. Select “clean all” to clear data but keep the bootloader locked. Click flash and wait for the process to complete. Your phone will reboot with the updated firmware.
Unlocking the Bootloader for Extra Control
If the ROM flashing doesn’t fix the issue, or if you want more control, unlock the bootloader. Here’s how:
Enable Developer Options
Go to Settings > About Phone and tap the HyperOS (or MIUI) version several times to enable developer options.
Turn on OEM Unlocking and USB Debugging
In Developer Options, enable OEM Unlocking and USB Debugging. Also, bind your Mi Account to the phone by going to Mi Unlock Status.
Use Mi Unlock Tool
Download the Mi Unlock Tool from the official site. Log in with your Mi Account and connect your phone in Fastboot Mode. Follow the instructions to unlock the bootloader. Note that this will erase all data, so back up important information first.
Flashing the Modem Firmware with an Unlocked Bootloader
With the bootloader unlocked, you can flash the modem firmware. Here’s how:
Download the Modem File
Download the Fastboot ROM again and extract the modem file, which is usually named modem.img or NON-HLOS.bin.
Flash the Modem Firmware
Connect your phone to your PC and open a command prompt. Navigate to the folder with the modem file. Use this command to flash the modem:
fastboot flash modem modem.img
If your file is named NON-HLOS.bin, use:
python
fastboot flash modem NON-HLOS.bin
Reboot Your Phone
After flashing, reboot your phone by entering:
fastboot reboot
This will apply the new firmware and should fix any network issues.
Final Thoughts
Updating the modem firmware on your Xiaomi phone with HyperOS is an effective way to resolve network issues. Whether you keep the bootloader locked or unlock it, you now have the steps to update the firmware. Following these guidelines will help you enjoy a smoother and more reliable phone experience.
Conclusion
In conclusion, if your Xiaomi phone is struggling with network problems, updating the modem firmware is a practical solution. Whether you choose to keep the bootloader locked or unlock it, the process is straightforward. Keeping your firmware updated will help avoid restarts and ensure a dependable phone. With these steps, you’re ready to handle any future tech challenges with ease!
