Blu Dash JR K locked-out; "Yes" confirmation option to reset is not present in recovery mode I have my sister's Blu Dash JR K at the moment. She forgot her lock screen pattern, and there is not an option to recover via Gmail.

Phone comes with stock recovery. when I go there and try to apply factory wipe/data, all I get are a bunch of:

   -- no --
   -- no --
   -- no --
   -- no --


There is no yes option.

Second attempt, I tried to reset the phone using ADB, as I don't have the phone with debugging mode active. when I type adb devices, no device is detected.

Phone is not rooted so I'm not sure if I can install any custom recovery. What should I do now?

EDIT 

I'm not able to use "official" recovery modes (Gmail Based) since she never synced with a Google account.
If your sister has access to Google account, she can try the Android Device Manager and do a "Lock and Erase". You may need to enable Lock and Erase first.

https://support.google.com/accounts/answer/6160500