One of the bug commenters said that "neither reviews nor photos" could be seen and believes that it was because "I once used this app in China" but does not explicitly mention swapping out the SIM card.
my question: does a visitor to China have to swap out the SIM card in their phone in order to use it there?
Yes, I heard that the Great Fire Wall in China treats network traffic differently when one is on T-mobile data roaming...A friend of mine could use her T-mobile phone to access google, gmail and instagram in china directly, without using a VPN...But you can only access 2G or 3G network (not 4G) in most of the areas there...
my question: does a visitor to China have to swap out the SIM card in their phone in order to use it there?