If you successfully flash a custom ROM, you have achieved something that 99% of Nokia G300 users will never do: you truly own your phone.
; the "OEM Unlocking" toggle will typically be grayed out if it's already unlocked. 🛠 Step 2: Finding the Right ROM While the G300 isn't officially supported by as of early 2026, it is a Project Treble compatible device. This means you can often use Generic System Images (GSIs) LineageOS GSIs: nokia g300 custom rom
You need a reliable daily driver, use VoLTE for work, or rely on the camera. If you successfully flash a custom ROM, you
: Provides a clean, Google Pixel-like interface with updated security patches. use VoLTE for work