Hey all, Got some beginner questions with android and the nexus 4. Would appreciate any input. So basically I'd like to unlock the phone (I know this will wipe it clean) and get SU access to try amend/tinker with some files and play around with the OS. I'd start small like amending a xml file to change the nav bar size for example and up the camera bitrate. Then hopefully move onto something a little more advance like adding custom icons in the second notification screen. *But I will be keeping stock kernal and rom My questions: 1. Once unlocked and installed SU app will I be able to install android 4.2.1 OTA? 2. Will that relock my phone - again unlocking wiping the data? 3. Will that overwright any changes made to system files? 4. If I relock the bootloader after I made changes can I then keep SU access? Not really looking to root custom roms as I don't have the time ATM and will keep the stock experience for a few months till I get use to it.