How to Flash Avengers Custom Firmware on Mi Band 3

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We just went through Xiaomi Band 4 earlier this month. If you are planning to upgrade from your older Mi Band 3, I would definitely recommend. Because of Mi Band 4 packs promising features for the cheaper price. Well, Mi Band 3 is now more than one year old. So, there is a bit of development in the firmware department. In this post, I will show you how you can flash a custom firmware on Mi Band 3.

We see a lot of development (lot means a whole lot) for Xiaomi devices. Thanks to all developers, fortunately, there is the development of custom ROM for more than four years old Xiaomi device – Mi 4. Yes, I still use it. And now in 2019, OEMs are supporting developers more than before to develop custom firmware so that people enjoy to use them in their devices. Just like a custom ROM for smartphones, Xiaomi Mi Band 3 now can also take a taste of new custom firmware.

Mi Band 3 comes with only three different skins pre-installed. However, now you can flash the Avengers custom firmware. And this custom firmware on Xiaomi Mi Band 3 looks sweet, by the way. So, the steps to flash a custom firmware on Mi Band 3 is quite simple. I have mentioned them below.

Note: I want to be specific here. I am not a developer of this firmware so please don’t blame me if anything goes wrong with your Mi Band 3.

Here’s How Does it Look

How to Flash Custom Firmware

Downloads

To flash a custom firmware on Mi Band 3, first, you will require following files. So, download them as I have attached. It includes one APK file and a firmware ZIP file.

Steps to Follow to Flash Custom Firmware on Mi Band 3

  1. Open Mi-Fit app on your smartphone.
  2. Now, Activate the visibility option in Mi-Fit.
  3. You will need to Un-pair the Mi Band from Mi-Fit.
  4. Once unpaired, simply activate the GPS and Bluetooth on your phone.
  5. Now, open GadgetBridge APK on your phone and start Scanning for the band.
  6. You should get Mi Band 3 option on the screen. Select it.
  7. To pair you will also require to touch your Mi Band 3 as well.
  8. Once paired, simply open the file explorer on your phone and locate to the Firmware ZIP file.
  9. Tap on it. You will see open with a dialogue box. Simply select the GadgetBridge.
  10. Flash it.
  11. And done. Once flashed unpair your Mi Band 3 from the GadgetBridge.
  12. Now pair your Mi Band 3 with Mi-Fit and enjoy the new theme.

How to Go Revert Back to Original Firmware

Downloads

  • Download Gagdetbridge APK from Google Play Store.
  • Download Original Xiaomi Firmware from GeekDoing. Remember, you will have to download .fw extension file to flash.

Just in case if the above link is not working, you can go over here to find working Firmware file for your Mi Band 3. The installation process won’t change for any firmware you download.

Steps to Go Revert Back

  1. Open Mi-Fit app on your smartphone.
  2. Now, Activate the visibility option in Mi-Fit.
  3. You will need to Un-pair the Mi Band from Mi-Fit.
  4. Once unpaired, simply activate the GPS and Bluetooth on your phone.
  5. Now, open GadgetBridge APK on your phone and start Scanning for the band.
  6. You should get Mi Band 3 option on the screen. Select it.
  7. To pair you will also require to touch your Mi Band 3 as well.
  8. Once paired, simply open the file explorer on your phone and locate to the Firmware file.
  9. Tap on it. You will see open with a dialogue box. Simply select the GadgetBridge.
  10. Flash it.
  11. And done. Once flashed unpair your Mi Band 3 from the GadgetBridge.
  12. Now pair your Mi Band 3 with Mi-Fit and enjoy the original firmware.

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