https://us.community.samsung.com/t5/Galaxy-S21/S21-ultra-Signal-loss-problem-after-uploading-to-one-ui-7/m-p/3295807#M97101 If all else fails, you may need to clear the partition on your device after a large software update. It was recommended to do so after the UI 7.0 update. Also backup your data and do a factory reset. Those things should help with your issues. Thu, 10 Jul 2025 18:45:16 GMT SoloQuest74 2025-07-10T18:45:16Z