PUXING RADIO wont turn on

[Specs]

Good day,

I own a Puxing PX-777, I bought it a couple months ago and I got it and programmed it but after that I put it away because exams rolled around and I got super busy so I didn't go airsofting at all.

I just pulled it out again to show my dad and the darn thing wont turn on at all! I can flick all the switches and such but nothing happens. I tried another battery and charged them both but nothing worked.

If anyone has any suggestions please let me know.

Thanks a bunch,

Derek