Blue screen error

Subject: Dell Latitude 7400 2-in-1 – Persistent Power and Boot Issues, System Instability

Dear Support/Community,

I own a Dell Latitude 7400 2-in-1, and recently, it has become nearly unusable due to a cascade of persistent and unpredictable issues. It began with the laptop randomly shutting down without warning. When I attempted to power it back on, I was met with an orange LED flash—indicating a “no power” issue—even though the battery was fully charged and Dell’s battery health utility reported it as healthy.

After repeated attempts—unplugging and replugging the charger, pressing the power button multiple times—it eventually powered on, but the process is entirely inconsistent. Sometimes it takes just a few tries; other times, I’m stuck waiting for hours. Once it does start, it often shuts down again randomly without warning.

Occasionally, when I try to boot it up, it freezes on the Dell logo screen with no loading bar, and I can’t access the BIOS (F2 doesn’t respond). I managed to update the BIOS, which seemed to fix things temporarily, but new issues arose immediately after. The system lost all power options from the Start menu (shut down, restart, lock, sign out), the laptop no longer recognizes its built-in speakers, and I’ve completely lost audio functionality.

Today, the cycle began again—random shutdowns, power button unresponsiveness, and failure to boot. I’ve attempted to run diagnostics several times, but the system shuts down before they can complete.

This situation has been incredibly frustrating. It feels like I’m dealing with twenty different problems wrapped into one machine. I would deeply appreciate any guidance or solutions, as I’ve exhausted all basic troubleshooting options.

Thank you for your time and support.

Best regards,
Chinasa Augustine