Hi, today I'm sharing an interesting experiment done on my Nubia Z11 miniS (NX549J). I have rooted this android device using TWRP but later noticed that software patches from Nubia aren't automatically updating. So, I decided to go back to factory system by removing TWRP and by flashing default ROM.
1. Download stock ROM for your device. Visit your phone manufacturer's website and download stock ROM for your specific model. In my case it was in https://www.nubia.com/in/support.php?a=download.
1. Download stock ROM for your device. Visit your phone manufacturer's website and download stock ROM for your specific model. In my case it was in https://www.nubia.com/in/support.php?a=download.