Sorry i cannot be much more help, i do not have your box but i do have a qviart dual which has the same chipset. On the dual there a couple of ways to get into recovery. Switching off and back on whilst holding the power button on the front takes you into recovery mode. Or whilst booting keep pressing ok,ok ect to enter recovery mode or by pressing 11111, or 22222, or 33333 or 44444 take you into a different boot slot. I don't think any of these will help but maybe.
On the qivart there is also a loader tool called hitool. I am unsure if this is suitable for you box but maybe a google search might bring something up.
tried the google search way but no look all say the same ways BUT 11111 22222 33333 44444 way I will look into, but thanks for your help anyway seriously
