This is gearbest reply after all the proof
WWP1706300041170904
Thank you for contacting Gearbest.
We sincerely sorry to hear this about your item.
We would like to work together to resolve the issue to your satisfaction.
Please review our warranty here:http://www.gearbest.com/about/warranty-and-return.html
Please kindly tell us following points:
1.We suggest you to change another set of batteries first. It is recommended to use high-rate batteries.
Besides, pls. try to take out the batteries and tighten up the screw
2.Change another charging line to have a try.
After all these steps, if it cannot work, please contact us and we will give you the solution to deal with the problem.
We sincerely apologize for any inconvenience that may have been caused.
Thanks for your understanding in this matter.