Thank you for the fast answer. I think I got it. I deleted all keys during
licensing after I couldn't enter any more. Now I can gradually assign the
keys again. Is that correct?
Otherwise, the manufacturer is Guangzhou Xiangchuanyi Animation Technology
Co., Ltd. in China.
I'm going to try this out in my photo box tonight. If it doesn't work, I'll
get back to you.
Thank you very much for your effort!