Hey whats up guys I dropped my S4 and cracked the screen so Asurion sent me a new S4 but I was rooted so i needed to unroot. Which I did. After I unrooted I went into TWRP recovery and wiped everything. It told me I need to update something that required a root to be installed. Anyway, im stuck in the Samsuns Galaxy S4 screen. I can boot into download mode but thats it. If i send them the phone like that with no root, superuser, and I am pretty sure TWRP is uninstalled since I can't access it can they still tell if I was rooted? Also if they can how can I fix it? Please can someone help me out ASAP...