I don’t get sucurity patch level updat after march 1 2023 on my S21 ultra.Have you had same issue?

I'm tired for the disturbing of advertisment.When my net is swiched on the add. come .They tired me.How can I get ride of this problem?Please give me a easy solution.

When I am in online video add is automatically happened. Even at the time of my phone's display off the add comes. It is so annoying .I want to get ride of this option. please give me a suggestion to stop this.

my phone is J7 pro.version is 7software experiance is 8.1is it competent for Oreo version?

My phone is uncertified . What is the value of certified ? What can I do for certification?