Amanero optimize for Windows firmware Support Mac and Windows native DSD64-512,PCM up to 384KHz ,Linux DOP up to 128 (Only for who can do the update process by himself, we don't reply any questions about the update process, if you have any questions about the update process, please download and read the guide of every model or ask in here https://www.head-fi.org/threads/audio-gd-di-20.918123/page-117 ) Please note: 1,If user want to connect the Linux device source, can update  to the Amanero optimize for Linux firmware , please click here.                     Amanero optimize for Linux firmware 2,  If need the unit work with Windows , please download this driver .      Driver_Amanero_optimize_Win 　 Update steps: 1,  Download the update tool  “Amanero_optimize_Win” file and unzip it .        Tool_Amanero_optimize_Win 2, Connect the DAC input port to computer through the USB cable, power on the DAC .    Double click the “ConfigTool” and then follow the tool guide to finish the update.    When open the tool, there is an ID windows, just keep it as default and click ok. 3, The unit without “ Update Port” on rear , user had to open the unit to short two pads on the Amanero module for 2 second for erase the device, Then shut down the DAC.      4, If the unit with the “Update Port” on rear, user only need push and hold for 2 second, for erase the device, don’t need open the unit. Then shut down the DAC.   Please note:          Some few customer feedback they accidentally touch the Amanero update button cause the firmware delete, Since 23rd. July 2021 , the product ship without connect the update button wire, if customer want to active the update button feature, connect by self.       5, Run ConfigTool.exe,  select the CPLD firmware version “CPLD_for_1080" and press FLASH CPLD. 6, When done Unplug the USB Cable and Replug it. 7, Wait 3-4 seconds then Unplug the USB cable and Replug it again 8, Select the CPU firmware version "DSD512x48x44". Press FLASH CPU and when done unplug the USB cable 9,  Replug the USB cable and if it's all ok the audio driver needs to detect the device. 10,When finished, turn off the machine.Complete the upgrade after restarting the machine 　 11, If need the unit work with Windows , please download this driver .      Driver_Amanero_optimize_Win