No light, no fan, no responseThe power circuitry or the mainboard, nearly always, with a perfectly sound disk behind it.Routine work
Blue screens, or no boot deviceTwo candidates: the file system, or the disk itself. Each restart makes it dearer.Routine work
Liquid went into the keyboardOff the mains now, and take the battery out. What liquid usually kills is the machine, not the files.Time-critical
Ticking, or a scrape from insideThe mechanism is on its way out. Each further minute under power costs sectors.Time-critical
Looping through repair or updateSoftware trouble on healthy hardware, generally. Either way the files come back.Routine work
How to pack and post it: movement is what finishes a damaged drive, so pack it rigid, cover the parcel for what the files are worth rather than what the disk cost, and put a tracked label on it for the intake lab. We cover the journey back. If you would rather someone checked your packing first, ring before the box is sealed. The whole method is on the
packing and postage guide.