update xt1058 from 4.4.4 to 5.1.1

i want to update my moto x 1058 from 4.4.4 to 5.1.1
presently i am rooted (no custom recovery, no bootloader unlocked)

i want to use fastboot commands for update as RSD lite not detecting my phone but fastboot commands work without any issue.

5.1.1 firmware is from (GHOST_ATT_5.1_LPA23.12-21.1_cid1_CFC.xml.zip 1.0.0)
http://motofirmware.center/files/fil...id1_cfcxmlzip/

fastboot oem fb_mode_set
fastboot flash partition gpt.bin
fastboot flash motoboot motoboot.img
fastboot flash logo logo.bin
fastboot flash boot boot.img
fastboot flash recovery recovery.img
mfastboot flash system system.img
fastboot flash modem NON-HLOS.bin
fastboot erase modemst1
fastboot erase modemst2
fastboot flash fsg fsg.mbn
fastboot erase cache
fastboot erase userdata
fastboot erase customize
fastboot erase clogo
fastboot oem config carrier ATT
fastboot oem fb_mode_clear

kindly guide me :)))