IceShadow

Yes, I did. Just found out that whenever 5V power supply is disconnected from HD+ adapter, Xbox boots patched Bios without a problem.

Hi, I've fixed my old 1.6v motherboard for testing purposes. And what do you know. It does boot patched Bios. So, I've swapped HD+ adapter to board that I've fixed and.....same result, blank screen with steady green light. Well, at least now I have spare working motherboard (that was sitting in the attic, broken for last 10years). It looks like once AV connector is removed, patched Bios wont work neither with Composite or component cables. For testing I've connected desoldered AV connector with few wires. M8+_16_Patched.bin

Thanks for quick response. I have HD+ adapter, applied kpatch 1.0.2. And as a result I got coma console (steady green light with no video-audio output). HD+ board is still not installed. Unpatched Bios works absolutely fine. I was following step by step official guide from MakeMhz. It's quite simple and straight forward.

Hi everyone, I'm new here. Long story short. I'm trying to install MakeMhz XboxHD+ Hdmi Mod to my Xbox with 1.6v motherboard and 2TB HDD. I'm stuck with BIOS patching. Patched BIOS gives coma Console issue. All I get is steady green light on Xbox and black screen. All patching was done following official MakeMhz guide with EvTool 1.0.9 and correct ips file. Unpatched BIOS works just fine. I'm using Evox M8+ 16 Bios with OpenXenium modchip. Can't figure out what I'm missing. Tried different Bios'es. Also tried Using my old Aladdin Chip with same result. After patch is applied and flashed, I'm getting coma console. Also EvTool 1.0.9 won't recognize patched BIOS, gives me Unsupported kernel error. BIOS that I've tried to use, MD5 Checksum matches (as per MakeMhz website). Any help would be much appreciated. As I've been trying to work it out for two weeks now.