Samsung Galaxy Book 6 Ultra Random Shutdowns Fix in Hyderabad

Random shutdowns on the Samsung Galaxy Book 6 Ultra that happen without warning (no bluescreen, no thermal event) usually point to a power-delivery fault: an intermittent battery cell dropping voltage under load spikes, or a MOSFet on the charging rail losing gate-drive. Samsung Members diagnostic + Samsung Knox log may show unexpected power-button events in the log. Software causes include a corrupted Samsung power-management driver that misinterprets battery state as critical and issues a hard shutdown. A third cause, subtle but common: RAM timing instability after a non-certified stick is added, causing a memory controller exception that bypasses the BSOD mechanism on some BIOS versions and produces a silent power-off.

We pull Samsung Settings event log and run HWinfo battery stress to identify voltage-drop events. If RAM-related we run extended memtest. Power-management driver is reinstalled from OEM source if logs implicate software. Hardware faults (MOSFET / charge-IC) are resolved at board level under microscope. 30-day warranty covers recurrence.