DA720 Upgrade Procedures and Steps

Please check carefully before operation, must not mess up the model upgrade

DA720 upgrade method:

1. Format the U disk into fat32 format

2: Make sure that the U disk is a U disk that can play music normally or is in FAT32 format.

3: Copy the fileupdata.lin upgrade file to the root directory of the U disk (and please copy in a music file).

4: Switch the DA720 to U-disk mode, and insert the U-disk with the upgrade files directly in the power-on state.

5: When the U disk is upgraded, all the indicators will be off for a few seconds, and then light up again, the same program is only upgraded once

6: Delete the fileupdata.lin upgrade file from the U disk.

DA720 program one (adjust bass/treble):

http://www.aoyint.com/software/DA720/fileupdata.lin

DA720 program two (adjust center/surround volume):

http://www.aoyint.com/software/DA720/customize/fileupdata.lin

Note, please check the model carefully, if there is no need to upgrade to solve the problem, please donot upgrade yourself.

1. The upgraded firmware model does not correspond, causing a crash, you need to return to the factory to reset the chip with a computer.

2. The upgrade takes about half a minute. If the interruption is easy to cause the chip to be upgraded to half, the CPU will not work and need to be returned to the factory for repair .