I also bought mine from the same place and noticed the same problem. I've done everything you 70mai official store has asked and they stated the problem. Now they want me to send the camera to them for examination / repair. In many similar cases, they have sent a new one to replace the faulty camera, why should we now proceed differently especially when the fault has already been admitted. I will contact the Finnish Consumer Protection Board and ask for their opinion before sending the camera to China. Even the case with the 70mai official store has taken too long.