can't scan whatsApp web qr code? i have htc wildfire 3 
i can not scan qr code for whatsApp web 
i see the "OK, got it" button , no problem with that 
but it seems camera keep scanning but not getting anything
any idea how to fix that ?
every thing is updated already
It happened to me once because I had a slow internet connection. Connect to a high speed internet and try again.