first i rooted my phone, it went smoooth ,then decided to upgrade my phone via cyanogen 12.1 mod . it went good and i was happy . then when i flashed Gapps , it didnt work , everytime "the message popped up "google services couldnt open " , then i checked my phone via root checker , and it showed "the device is unrooted " now, how did this happen .... itried to root it again via odin , it says passed , but the screen is now stuck on logo , i then wiped data/factory reset .. and wiped cache partition .. and cant again install zip files of custom rom .... PLEASE HELP . what to do ??