In 2008, Apple posted an official response acknowledging problems with MagSafe adapters, which include incomplete circuit connection and adapter's white insulation separating from the magnetic end of the MagSafe connector. Following the release of a Knowledge Base article, a class-action lawsuit was filed on May 1, 2009, in the US District Court for the Northern District of California's San Jose office, alleging that the MagSafe power adapter is prone to frayed wires and overheating, and as such represents a fire hazard. Apple released a firmware update in October 2010 that it claims resolves this issue. However, the installer for the firmware update will not run on certain older MacBooks, which means that the firmware can not be updated. This, in turn, means that it is not possible to use the new MagSafe power adapter with these MacBooks. However, as of 2022, Apple still sells power adapters for both MagSafe 1 and MagSafe 2. In 2011, Apple posted a support document about the strain-relief problems with the MPM-1 ("T")-style MagSafe power cables, and issued settlement offer for buyers of Apple 60 W or 85 W MagSafe MPM-1 adapter within the first three years of purchase. References External links Part of the Ars Technica review of the MacBook Pro is dedicated to the MagSafe connector. Apple Inc. hardware DC power connectors Products introduced in 2006