Same Issue and Same Repair All Voltage Rails Present All Rst Signal Present Checked external display - no display Confirm! Bios Chip Reflash but No Good Because Both Bios Chip itself is bad Replaced Bios and reprogram it with k42jr bios verified and Done! End I will Upload the working Dump in Bios S...
Dell 15-5548 i7 Dead [no power] Checked all Coils for Short to Ground - No Short Checked Vin when adpter is plug in - Good Checked 3.3V and 5V Rails - Present Pressed power Button Checked Rsm rst - present Checked Sus_On - Low [Problem] Checked Rtc/Coin Batt - Good Checked Rtc_rst - Present Checked ...