You need to downgrade your firmware first. Use FFB or Activate Alternative Firmware - depends from your firmware on alternative partition. If you have had previous firmware version (e.g 2005.1 or 2004.0) and you recently upgraded it to 3000.2 then it is enought to activate alternative firmware. But if you do not know if there was firmware before, you have to use FFB.
Read wiki page.
how to install pvr on le40b750
Re: how to install pvr on le40b750
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