https://www.cnet.com/news/samsung-exploded-galaxy-s10-5g-caused-by-external-impact/

"After retrieving the device from the customer, Samsung has closely inspected the device and concluded that the damage was caused by external impact," a company spokesperson said. 

According to the AFP, via The Economic Times of India, a user of the 5G handset identified only by his surname, Lee, claimed his phone blew up "without reasons."