Can someone tell me i m stuck on feb security patch update s25 ultra 8.5 beta .Not getting option to leave beta or getting update thru otaWhat should i do

Hey samsungI m stuck with 8.5 beta program still on my s25 ultra (sm s938b/ds )I went to service center for help they said 1% chance my phone can be dead if i get my softaware manually updated to rolled out 8.5 which is already available i rhin...