护目镜增强版: How to dim your Xiaomi phone screen brightness below minimum ?

Yes, your Xiaomi phone has a slider that lets you adjust the screen brightness. But, the dimmest level is often still put so much strain on your eyes when reading in the dark.

Here’s one way to make your Xiaomi phone dimmer than the minimum brightness level using a 3rd party from the Xiaomi App store.

1. Download and install 护目镜增强版 from the Xiaomi App store. Note: Unfortunately, this app is only available in Chinese.
2. In order for it to work, you’ll need to enable floating windows for this particular app. Here’s how:
   1. [MIUI v5] Go to the Settings app > General settings > Apps > Downloaded > Find and tap the 护目镜增强版 app, and then swipe the Enable floating windows switch to the right.
      
   2. [MIUI 6] Go to the Security app > Permissions > Permissions > under Apps > Find and tap the 护目镜增强版 app > Display pop-up window, and then select Accept.
3. You can now open the app, and then adjust the circular slider to make your screen dimmer.