https://us.community.samsung.com/t5/Galaxy-S21/S21-ultra-Signal-loss-problem-after-uploading-to-one-ui-7/m-p/3232247#M95079 <P>After updating my S21 Ultra to one ui 7 android 15 , I have a problem with the network connection.</P><P>The network is completely disconnecting and goes into emergency mode, or it loses the antenna altogether, and I need to restart my phone every time to be able to connect to the network again.&nbsp;</P> Mon, 12 May 2025 08:50:44 GMT Ahmadi 2025-05-12T08:50:44Z