Most Android devices come with variable refresh rates (VRR) or locked rates based on the system’s framework. Stock settings usually prevent users from exceeding the manufacturer’s default.

For rooted devices, the tool promises full access to underclock or overclock the display. For non-rooted devices, it may utilize a "wireless ADB" hack to temporarily change the rate.

Overclocking a display that is only rated for 60Hz to 90Hz can physically damage the LCD or AMOLED panel. This leads to:

: If you're looking for a simple way to adjust your device's refresh rate, the Refresh Rate Changer 30 by RC Modz APK is worth trying. However, be aware of the potential battery impact and limited control over refresh rate values.