You use this device for daily banking, social media, or any activity requiring modern security. Android 5.1.1 has known vulnerabilities. For daily use, it is smarter to keep a modern launcher on a newer OS.
: You can find various old versions of TouchWiz Home on Aptoide , including builds like 5.1.98 [4, 6]. 🛠️ How to Install samsung touchwiz home lollipop 5.1 1 download