Xiaomi is offering a free upgrade to a Xiaomi 12 Pro for Mi 11 Ultra users who are facing Wi-Fi issues. These users also have the option to further upgrade to the company’s latest Xiaomi 13 Pro by paying an extra fee of Rs. 30,000. Just recently, the company extended the warranty of the Mi 11 Ultra alongside other smartphones by two years, after users complained of camera and motherboard issues. The current offer — including the free…