Over-the-air update method for continuous delta of an Android operating system of a handheld device

An over-the-air update method for continuous delta of an ANDROID operating system of a handheld device, characterized by comprising the following steps:

• step 1:sending a current version of the ANDROID operating system of the handheld device to a server by using an over-the-air update application of the handheld device;
• judging update packages suitable for updating the ANDROID operating system of the handheld device based on existing versions on the server and then feeding back the suitable update packages to the over-the-air update application by using the server;
• writing in a command document by using the over-the-air update application according to feedback information from the server, wherein the command document includes rows of update commands with respective built-in update package paths, and the update packages are arrayed from top to bottom in the rows according to update sequence;
• step 2:rebooting the handheld device to enter update mode;
• step 3:opening the command document;
• step 4:performing a processing process which comprises reading and processing the update commands in the rows row by row from top to bottom and saving row's processing progress in update information of a MISC zone of the ANDROID operating system;
• and,
• step 5:rebooting the handheld device to start an updated ANDROID operating system;
• said reading and processing of the update commands in the rows row by row from top to bottom in step 4 comprise reading each row of the update commands in the command document, outputting the update commands into corresponding array variables, and operating an array pointer to process array variables corresponding to each row of update commands row by row from top to bottom starting from a first row of the corresponding array variables.