Wii 3.5k brick and cant downgrade !

Hello people ! i bought a few days ago a wii 3.5k version and i have 2 problems:

1) i use a SD card with bannerbomber and try bootmii, doesnt work, also i cant install custom IOS -IOS36xxxxxx- (*.idol file), cant change the region by using anyregion or downgrader winokoko, etc, any help !?!? how can downgrade 3.2us or 3.4e or u ????

2) but my big problem is that i upgrade with Custom VM a cIOS wad (cIOS_fix.wad says that fix -2011 problem but seems that have other problems:)))) ), installed well but when i ejecute most of the *.dol files i get blackscreen so i have to reset my wii, except bootwii and customVM that still working fine, how can fix this problem?? any clue to go a step back ??? any *.wad (IOS) or *.wad (cIOS) to upgrade to fix this ????? thx !

You already posted a topic like this. We have answered it; look at it

Yes, i just answer :)) i create this topic because i dont know what else to do :((((((((((