Hi guys,after updated to 9.11.28 my Mi 9t pro don't have or don't see 5 gh on wifi.I have a Mi router 3g and on Mi mix 2s everything is normal on 9.11.28.I guess the problem is on 9t pro.I try wipe cache i try wipe dalvick nothing happens.And also on 2.4 ghz wifi is very slow.Please help and...