Sony notified customers Wednesday that a flaw in the internal temperature management system in some 535,000 Vaio notebooks can cause them to overheat to the point where their cases and keyboards melt and users can be burned.

The Tokyo-based conglomerate advised owners of F-Series and C-Series Vaio notebooks purchased this year to install a firmware update provided by Sony to fix the problem.

"Certain units within the VPCF11 and VPCCW2 notebook series are affected by this potential overheating issue. Sony recommends that all units in the VPCF11 and VPCCW2 series be updated with the firmware download," wrote Mike Lucas, senior vice president of Sony's Vaio business unit, in a notification published Wednesday on Sony's eSupport Web site.

The notification listed about 60 F-Series Vaio models that were potentially affected by the overheating glitch and another 80 or so C-Series models.

Full story: CRN