METHOD AND APPARATUS FOR UPDATING FIRMWARE

摘要

A method for updating firmware in a user terminal comprises dividing files with modified contents into a plurality of groups and assigning each file with respective offset. The method then performs bitwise XOR operations between the plurality of groups onto the backup buffer. Consequently, the method stores a result of the bit XOR operations on the backup buffer into a non-volatile storage as a backup file. An apparatus for updating firmware comprises a processing circuit configured to divide files with modified contents into a plurality of groups and assign each file with respective offset. The processing circuit performs bitwise XOR operations between the plurality of groups onto the backup buffer and store a result of the bit XOR operations on the backup buffer into a non-volatile storage as a backup file.

主权项

1. A method for updating firmware in a user terminal, the method comprising:
dividing files with modified contents into a plurality of groups, a largest size of the plurality of groups being equal to or less than a size of a backup buffer; assigning each file with respective offset, the offsets indicating file positions within each group; performing bitwise XOR operations between each of the plurality of groups and the backup buffer; and storing a result of the bitwise XOR operations on the backup buffer into a non-volatile storage as a backup file.