On Fri, 23 Jan 2015 18:03:10 +0100 Pierre-O por@taveo.com wrote:
0x54: 0x01ff0000 FREG0: Flash Descriptor region (0x00000000-0x001fffff) is read-write. 0x58: 0x07ff0200 FREG1: BIOS region (0x00200000-0x007fffff) is read-write. […] Running OPCODE 0x03 failed at address 0x800000 (payload length was 64). Read operation failed!
That's because 0x800000 is not covered by any region... the chipset locks everything not covered automatically.