List of Best Custom ROM for Nothing Phone 3a / 3a Pro [Updated]

Do you want to Install any Custom ROM for Nothing Phone 3a / 3a Pro device? then you are at the right place. Here we will list all the Custom ROM for Nothing Phone 3a / 3a Pro. If you have a Nothing Phone 3a / 3a Pro device, you may know that this device runs on Android OS. Well, the biggest advantage of Android is that it is an open-source project. This allows every community to develop and Customize ROM for their phone.

Nothing Phone 3a Overview:

The Nothing Phone 3a, released in March 2025, continues the brand’s focus on clean design and visual identity. It features a large 6.77-inch AMOLED display with a 120Hz refresh rate, HDR10+ support, and very high peak brightness, making it excellent for media consumption. The transparent back with three customizable LED light strips remains a signature element, useful for notifications and camera fill light. Build quality is solid with glass panels and IP64 protection, while the Snapdragon 7s Gen 3 chipset ensures smooth performance for everyday use and moderate gaming on Android 15 with Nothing OS 4.0.

On the camera side, the Phone 3a stands out in its segment with a versatile triple camera setup that includes a 50MP main sensor with OIS, a dedicated 50MP 2x telephoto lens, and an ultrawide camera, delivering reliable photos and stable 4K video. Stereo speakers, a clean software experience, and long-term update support add to its appeal.

The 5000mAh battery paired with 50W fast charging offers strong day-long endurance with quick top-ups. Overall, the Nothing Phone 3a is a balanced mid-range device that prioritizes design, display quality, and a refined user experience over raw flagship power.

Before moving to installation and download, let us know the difference between CUSTOM ROM and STOCK ROM.

What Is Android Stock ROM?

When you buy a brand new Android device, it comes equipped with a “Stock ROM,” also known as the “Stock Firmware”. The stock ROM is the preinstalled operating system on your device. The stock ROM has limited functionalities that are defined by the phone’s manufacturer. If you wish to have extra features added to your device, then you will have to resort to custom ROM.

Check Out the Difference between Stock ROM and Custom ROM.