Instructions to update firmware on a PerfectWave DirectStream DAC MK2
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Section 1: Update user firmware 
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To update the user firmware, you will need a thumb drive to insert into the back of the unit. 

1) Unzip this package and copy the image.bin file to the root directory of a USB thumb drive.
2) Place the thumb drive in the USB slot on the back of the unit marked FW.
3) Using the front panel Logo LED button, place the unit in standby.
4) Using the switch in the back of the unit, power off the unit and then power it back on. 
5) The Logo LED will turn on solid blue for a few seconds. 
6) The Logo LED will begin to blink rapidly. It should blink around 25 to 30 times.
7) The update will complete and the unit will immediately initialize.

In some cases, the unit may freeze on the PS Audio splash screen. If this happens, remove the USB drive from the back of the unit and power cycle the unit again as in step 4. 

Note that if you update the firmware and leave the USB thumb drive in the unit, the firmware will *not* be updated again if you were to put the unit into Idle or to power off from the back panel. The unit will detect the firmware is the same and skip the update. However, PS Audio recommends that the USB thumb drive be removed during normal operation of the device.


Section 2: Update FPGA firmware 
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To update the FPGA firmware, you will need a thumb drive to insert into the back of the unit. 

1) Unzip this package and copy the fpga1_###_<name>.bin file to a USB thumb drive. 
2) Insert the thumb drive into the USB Type-A port labelled FW on the back of the unit. 
3) Enter the menus (long press the menu button) and scroll right to the System sub-menu. Press the center nav button to enter the System sub-menu. 
4) Scroll right to the FPGA Load screen. 
5) You will see a list of valid FPGA files on the thumb drive. Highlight the one you want to load (for exmample, fpga1_198_Antero.bin, or any other load you have put on the thumbdrive). Press the center nav button. 
6) A status screen will appear with details of the FPGA load process.
7) After verifying the image is loaded properly, a  pop-up will display asking to reboot the unit.
8) Press the cetner nav button and the unit will auto-reboot. You do not need to power cycle on the back panel. 
9) Once the unit is up, go into the menus and scroll right to the Versions screen. Scroll down to verify the FPGA image is correct for the load you selected.  
10) You can load multiple fpga bin files (using the format fpga1_###_<name>.bin) to the USB drive and easily swap between them. The unit will display the first ten files. 

In some cases, the unit may freeze on the PS Audio splash screen. If this happens, remove the USB drive from the back of the unit and power cycle the unit from the back panel. 

CAVEATS
1) For Mac users, if the DSD MK2 doesn't recognize your thumbdrive, be sure to format it for FAT32 and not EXFAT. 

2) If nothing appears in the FPGA Load menu, try powering the unit off in the back, inserting the USB stick, then powering it back on and returning to the menu.