There's an easier program to use...
I figured out how to do a factory data reset using ADB... something that would've helped when my
BT-300 went into a boot loop last weekend...DO AT YOUR OWN RISK! NOT RESPONSIBLE FOR BRICKING, ETC..... (but it worked fine for me).
1. Install "minimal_adb_fastboot_v1.4.2_setup.exe" (google it and grab at your own risk) on your Windows PC.
It will work if you had...
a. Under Security allow unknown sources
b. Under Developer Options allow USB debugging and unlock bootloader.
2. Connect same powered up
BT-300 to PC via USB cable.
3. Start up that minimal ADB program. It will open in command prompt.
4. Check connection by typing "adb devices"
Should see "EMBT3C device" on PC
5. Now type, "adb reboot recovery" and wait for android with triangle/exclamation point to appear after device reboots. You will notice the physical buttons flash purple too.
6. Press and hold power button. Also press Vol Up, then release Vol Up and finally release Power button.
You should now see the recovery menu including "wipe data/factory reset". Do the data reset and your glasses will be like new. You'll have to redo everything. Sorry this happened.