As you might already know, it is all but officially confirmed that the faulty batteries that caused some Samsung Galaxy Note7 units to explode during charging were manufactured by the tech giant's affiliate Samsung SDI. Now, given that batteries in Galaxy Note7 units destined for China were manufactured by a different company, the region remained unaffected by the global recall of the phablet. However, now it looks like Samsung wants to be absolutely sure that there's no affected unit in the region. The South Korean company has launched an online IMEI check tool using which Galaxy Note7...
Source: http://www.gsmarena.com/now_galaxy_note7_users_in_china_and_hong_kong_can_also_check_if_their_unit_is_faulty-news-20381.php