The firmware of this GPON ONT SFP module can be updated using the web interface (Management | Update Software):
The web interface only accepts image files with a special header. These can be created by adding the header to a flash dump.
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/ Zyxel PMG3000-D20B firmware image files.md
Last active
September 21, 2025 09:44
Zyxel PMG3000-D20B firmware image files