BEIJING – President Trump can’t use his beloved cellphone while in China, one of the many logistical challenges that he and White House staff faced on the ground in Beijing . The president, like all travelers to China, was told not to use personal devices in order to protect his data from hackers. It makes for a tough few days for Trump , who is a frequent phone user — dialing friends, taking calls from reporters, and posting memes. A White House official confirmed the president wouldn’t be using his personal phone in China. President Trump is limiting his cellphone use during his visit with President Xi over concerns about cybersecurity. Evan Vucci/Pool Reuters via AP Posts to his Truth Social account have been limited during the summit — and have likely been posted from Washington DC, where several White House staff are working Beijing hours to provide logistical support from afar.…