I also noticed the related topic ‘Pironman 5 Pro Max Killed My Pi’. To clarify: I do not have the PiPower 5 UPS module installed. My setup has no UPS, no battery, and no smoke has occurred. The Pi appears physically undamaged — the only symptom is the solid red LED with no boot activity, even when tested completely bare outside the case with only an SD card and direct USB-C power.