TECHNOLOGY giant Huawei's tri-folding smartphone, the Huawei Mate XT, started accepting subscription orders on Saturday, igniting a buying spree. In less than an hour, the online Huawei Mall reported more than 190,000 preorders. As many as 2.04 million people had preordered the Huawei Mate XT on Huawei Mall. The website announced that the phone will officially go on sale at...