
HD920PRO 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 (please copy in a music file).
4: Switch the HD920 to the USB INPUT channel, and insert the U disk with the upgrade file directly in the power-on state.
5: After inserting, wait for a few seconds, the display will show a white screen, wait for more than ten seconds, it will exit, and the upgrade is complete.
PS: If the system firmware of the machine is the latest, it will automatically skip the upgrade and play the music in the U disk. If the U disk has no music files, it will stop on the white screen because the content cannot be read. Please restart and remove the U disk.

HD920PRO (Golden Lotus Output) – Adjust Bass/Treble:
http://www.aoyint.com/software/HD920PRO/goldrca/fileupdata.lin
Note, please check the model carefully, if there is no need to upgrade to solve the problem, please 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.
Procedure 2: (Customize the button function of the remote control–adjust the center/surround)

http://www.aoyint.com/software/HD920PRO/goldrca/customize/fileupdata.lin
Note, please check the model carefully, if there is no need to upgrade to solve the problem, please 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.

HD920PRO (Silver Lotus Output) – Adjust Bass/Treble:
http://www.aoyint.com/software/HD920PRO220216/fileupdata.lin
Note, please check the model carefully, if there is no need to upgrade to solve the problem, please 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.
Procedure 2: (Customize the button function of the remote control–adjust the center/surround)

http://www.aoyint.com/software/HD920PRO220216/customize/fileupdata.lin
Note, please check the model carefully, if there is no need to upgrade to solve the problem, please 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.
AYINO Technology Co., Ltd.


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