Board: HP ProBook 470 G5, X8C DA0X8CMB6E0 REV: E
Chip: GigaDevice GD25B127D(SIG), SOIC-8, 16MB, dumped via CH341A + flashrom
Symptom:
HP logo appears, then immediate reboot loop. After several power cycles, screen went permanently black (fan running, no display, no HDD spin). After full teardown/reassembly (RAM, battery, SSD, CMOS battery removed for 24h), now getting 5 long blinks on Caps Lock + Num Lock (HP diagnostic code = EC timeout waiting for BIOS after POST / generic system board failure). USB BIOS recovery (Win+B) does not work.
What I've checked so far:
Flash Descriptor signature intact (0x0FF0A55A at correct offset)
Reset vector at top of flash looks valid
UEFITool reports: "FPT partition intersects with previous one" / "located inside another FPT partition"
MEAnalyzer reads ME fine: v11.8.93.4323, Consumer LP, SPT/KBP-LP C, Production Ready: Yes, State: Initialized
Attaching my full dump. Could someone please clean/rebuild the ME region and check for any other corruption? Happy to test and report back.