HP occasionally archives old firmware to reduce support calls. If 1.25 is not listed, try the “Samsung SCX-4300 Firmware History Archive” on the HP Community forums (official HP employees often post direct links). Never download from non-HP domains.
Where to get it safely
: Before updating, if possible, backup any important data or settings to prevent loss during the update process. samsung scx-4300 firmware 1.25 download