I bought the Tapo C200 a week ago. It is working fine, but I have a huge problem with the SD card. I took a 2Gb Samsung card from another TP link camera, where it has been working fine for several months, and put it into the Tapo camera. It failed to format. I took it back to the old TPlink camera, and now it could not format there either. I checked with a Chromebook and a Windows10 PC, I tried to format the card from both, I even tried to format both with FAT and FAT32, I tested it with the recommended testsoftware and every time it came out with no problems. So the card is working absolutely fault free on all other machines, but I can still not format on Tapo c200 camera and also not on the old TPlink camera. For your information: I tried to write some files to the sd card from the PC, and after that put the card back into the Tapo camera and tried to format from there. Again I got the fault message "failed to format", but when i put the card back in the PC, I could see that everything was erased, so it looks to me that it might have formatted the card, but was unable to use it for some strange reason. 

I could of course buy a new card, and then it would probably work fine, but I MUST find out why this problem occurs, because it is bound to happen again. Has anybody the same problem? Any good ideas? Because I have run through all the things mentioned from the TPlink Support Team, and nothing has helped so far... Regards Carl