An electronic device data access method comprising sharing, by an operating system and a pre-boot environment module, data stored in a hard disk drive in the electronic device and accessing the data using a block location list identifying a storage location for each portion of the stored data. The seat includes a cushion portion and a backrest portion. The community server is accessible over a first network to which one or more users from each party have access. The axially-extending parallel portion includes a plurality of internal groove segments extending parallel in an axial direction of the heat pipe and the non-axially-extending parallel portion includes a plurality of groove segments extending from the axially-extending parallel groove segments in a parallel manner in a direction different from the axial direction. A threshold-based control circuit can be used to predict whether list decoding will be needed and can suspend the list decoding operation if it predicts that list decoding is not needed.