How I use Samsung One Hand Operation + to eliminate awkward thumb stretches
The Good Lock module I forced myself to learn — and now I can't use a Galaxy without it
Living with the limitations of modern smartphones is a collective lie, and Samsung's Galaxy S25 Ultra is no exception. Despite its large 6.9-inch screen, the phone's design fails to accommodate the human hand, making it difficult to reach the upper-left corner. This ergonomic issue can be frustrating, especially when trying to navigate the device. However, there's a solution that can make your phone easier to use: Samsung's One Hand Operation + tool.
One Hand Operation + is one of Samsung's underrated tools that can be found in Good Lock, a customization suite. Good Lock was initially region-restricted and required workarounds, but it's now more widely available. The tool works by placing customizable handles on the screen edges, allowing you to replace awkward thumb stretches with simple swipes. These handles can be mapped to various system actions, providing total control over your device.
The tool offers six distinct gesture options: straight inward, diagonally up, diagonally down, and long swipes on both left and right handles. You can customize these gestures to suit your needs, but I personally find the diagonal up gesture to open Recent Apps and the diagonal down gesture to pull up the notification panel. The horizontal swipe remains for the standard Back command.
One Hand Operation + also functions as a shortcut engine. You can set long swipes to pull up Quick tools, such as toggles for Wi-Fi and Bluetooth, or perform actions like taking screenshots or activating Do Not Disturb mode. Another useful feature is the ability to map Previous App, which allows you to jump back and forth between two apps you're using. By mastering this tool, you may start to view the hardware buttons as unnecessary clutter.
One Hand Operation + can be a bit daunting at first, with a dense collection of menus and arrows. However, after a few days of use, you'll find it hard to go back to the stock navigation. To get started, download the app and set up a diagonal swipe for the notification panel. Be prepared to spend time remapping your entire phone, as the benefits will make your thumb thankful in the long run.
Written by urgent.news from Android Police's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
