You can download usb_upgrade_all_flash.bin file from this site which also has instructions
The specs for the Terk VR1 power adapter are 12V DC, 200 mA and the center pin is positive.
If you are recording via USB on the TUNVR1, we recommend a couple of things relating to the drive performance:
- We strongly recommend consumers use USB 3.0 drives with high speed writing capability. This will help prevent micro blocking in recording and playback. Many USB drives 2.0 and earlier have very slow write speeds and the memory in the tuner won’t prevent playback recording issues.
- We recommend drives up to 2 TB for connectivity to the TUNVR1.
Software upgrade procedure for TUNVR1
Terk Digital Tuner with Recordings
1/ From your PC copy the upgrade software, usb_upgrade_all_flash.bin, to a USB drive. Note: Don’t put the software in a folder and make sure there is no other files with “.bin” extension on the drive you will be using.
2/Insert the USB drive into the TUNVR1 USB input and then turn it ON with the remote control.
3/ From the remote control, click on MENU, right arrow to SYSTEM, down arrow to Information, and click OK. This will bring out a popup like below that shows the current software version:
Please make sure to note the software version. In the example above it is “Nov 24 2016-11:09:51 V2”
4/ Now click on the EXIT button on the remote control to close the popup.
5/ Now down arrow to Software Update like below:
6/Click on the OK button on the remote control. This will bring up a popup showing the software upgrade software, usb_upgrade_all_flash.bin , on the USB drive.
7/ Now click the OK button on the remote control. This will start a software upgrade cycle. The upgrade should finish within a minute, and the tuner will reboot.
8/ To confirm if the software is updated, click on MENU, right arrow to SYSTEM, down arrow to Information, and click OK. This will bring out a popup like below that shows the updated software version. Compare the updated version number with the version found from the step 3 above.
The following are the factory reset procedure:
1/ Press the Menu button and then right arrow to the System Menu (Gears icon).
2/ Arrow down to “Restore Factory Default”.
3/ Press OK. This should bring up a pop up with a password challenge.
4/ Enter 000000, six zeros, for the default password.
5/ Press OK to start the factory reset. The unit will reboot and bring up the Installation Guide menu.