This worldwide wiki provides information on how to access, change, and edit ONTs. The ONTs usually have customized firmware specific to vendors and ISPs, limiting their functionality to match service requirements. They can behave differently depending on the OLT and ISP settings. While it may be desirable to switch from an external ONT to an SFP or vice-versa for convenience, many OLTs have stringent checks in place, making a simple replacement nearly impossible. The wiki offers links, codes, and tutorials for modifying ONTs. Are you ready to dive in and explore? Yes, let’s get started!
https://hack-gpon.org/