Not possible to downgrade any D series TV.
Wiki article is for B series only.
You can install SamyGO (follow arm models instructions), but you get only Extensions, but no patches like DRM dissable/timeshift/yellow buttons etc.
UE37D5500 and FW T-MST5DEUC-1019.0
Re: UE37D5500 and FW T-MST5DEUC-1019.0
LE40B653T5W,UE40D6750,UE65Q8C
Have questions? Read SamyGO Wiki, Search on forum first!
FFB (v0.8), FFB for CI+ . Get root on: C series, D series, E series, F series, H series. rooting K series, exeDSP/exeTV patches[C/D/E/F/H]
DO NOT EVER INSTALL FIRMWARE UPGRADE
Have questions? Read SamyGO Wiki, Search on forum first!
FFB (v0.8), FFB for CI+ . Get root on: C series, D series, E series, F series, H series. rooting K series, exeDSP/exeTV patches[C/D/E/F/H]
DO NOT EVER INSTALL FIRMWARE UPGRADE