Since Synology locked the installation of DSM 7 to specific hardware serial numbers, the community took matters into their own hands. The result is a project widely known in the NAS community as .
Redpill is a custom bootloader that essentially tricks the DSM installation process. It acts as a bridge, telling the Synology operating system that your legacy hardware is actually a supported model (usually mimicking a DS918+ or DS3615xs). ds412 dsm 7
The official Synology Download Center lists as the final supported version for the DS412+. Since Synology locked the installation of DSM 7
Change the unique and upnpmodelname keys from 412+ to 1513+ . ds412 dsm 7
Here’s a balanced review of the running DSM 7.x , based on real-world usage and community feedback.