My camera was working fine before i did purchase a new counterfeit battery.
After i got my self a new battery' thats when i started to get these camera busy messages.
So i had to use my old original battery insted and it took me like a day powering on and off trying to get it to work and afterwards i was able to use it without any issues.
So since i didn't know back then that it must have to do with the battery, i repeated the same mistake of reusing this counterfeit battery. And again, i started getting these "Camera busy annoying messages.
And when that happens, i cant do anything, i cant use the camera for like any hour or so.
I wouldn't disagree with the idea that memory card have a role in this too. So i suggest you go for both original and high quality of both batteries and memory cards.
