This article is only applicable to Xiaomi Mi Band 8 NFC lossless downgrade version 1.5.190, other versions are self-tested
To downgrade to 1.3.176 (may require a factory reset), please go to: Portal
1. Preparation
1. Disable/uninstall Xiaomi Health
The above is for Xiaomi HyperOS system. Other systems/versions are similar. You can disable it yourself or uninstall it directly.
2. Install Notify for Xiaomi 17.1.0 version (see attachment)
3. Download miband8_nfc.1.5.190.bin
4. Get PairingKey
The following is the most original method to obtain the key (using MT Manager, for reference only)
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| 浏览附件27513 | 浏览附件27514 | 浏览附件27515 |
| Go to the About page and click like crazy | Find the compressed package location and open the file as shown in the figure | Search for encryptKey, and the string after the “=” is |
2. Operation steps
1. After making sure that the preparations are complete, open Notify for Xiaomi, connect the bracelet, enter the PairingKey, and enter the main interface
2. If the above steps do not work, please try uninstalling "Xiaomi Health". If not, proceed to the next step:
3. Brush ring
| 浏览附件27522 | 浏览附件27524 | 浏览附件27525 | 浏览附件27520 |
| On the main interface, click the icon in the upper right corner | Slide and find the firmware upgrade | Click "Firmware" and select the firmware file | You will be notified. It’s ok. Click OK. |
After completing the above steps, you need to wait patiently for the firmware package to be pushed to the device, and then upgrade it. The data will be retained normally.
If the above steps do not work, please try uninstalling "Xiaomi Health"
4. Complete the downgrade
After the completion, enter the bracelet and it will prompt that the update is successful, which means the downgrade is successful.
If there are any errors, please point them out in the comments, thank you!
