Confirm your model
Model: Elsys SATHD SATMAX PLUS ETRS55; MANUAL-RECEPTOR-DIGITAL-SATMAX-PLUS.pdf.
How it connects
Match SATMAX PLUS ETRS55, not SATMAX 5. In the cited original, flashing green means on without signal, steady green means on with signal and steady red means standby; none alone confirms SAT HD Regional authorization. MENU > Configuração > Informações separates receiver hardware/software, tuned-channel information and Habilitação SAT-HD. Record these before changing settings and keep CAID/SCID private. This edition explicitly excludes Ku-band antennas; it must not be treated as approval of later Ku software or installations. Confirm the matching current revision with support. Factory restoration changes both LNB settings and the channel list irreversibly; it is not a diagnostic observation. Do not interrupt a software update.
Before buying parts
These are compatibility notes and official reference links. Confirm the fault and exact part before buying.
Model-specific parts: start with the official source
Confirm the exact model and part number with the manufacturer or provider before buying any replacement part or accessory.
Check the model and official instructions ↓