Steps to 5.1

H:\platform-tools>mfastboot devices
TAxxxxxxxx      fastboot

H:\platform-tools>mfastboot flash partition gpt.bin
sending 'partition' (32 KB)...
OKAY [  0.250s]
writing 'partition'...
This may take a few seconds, if a
different partition table is being
flashed since we need to backup
and restore a few partitions
OKAY [  0.437s]
finished. total time: 0.689s

H:\platform-tools>mfastboot flash motoboot motoboot.img
sending 'motoboot' (1604 KB)...
OKAY [  0.350s]
writing 'motoboot'...
flashing tz ...
flashing rpm ...
flashing aboot ...
flashing sbl1 ...
flashing sbl2 ...
flashing sbl3 ...
OKAY [  5.979s]
finished. total time: 6.330s

H:\platform-tools>mfastboot flash logo logo.bin
sending 'logo' (245 KB)...
OKAY [  0.310s]
writing 'logo'...
OKAY [  1.385s]
finished. total time: 1.695s

H:\platform-tools>mfastboot flash boot boot.img
sending 'boot' (10240 KB)...
OKAY [  0.940s]
writing 'boot'...
OKAY [  2.209s]
finished. total time: 3.150s

H:\platform-tools>mfastboot flash recovery recovery.img
sending 'recovery' (10240 KB)...
OKAY [  0.950s]
writing 'recovery'...
OKAY [  1.522s]
finished. total time: 2.472s

H:\platform-tools>mfastboot flash system system.img
sending 'system' (786432 KB)...
OKAY [ 49.478s]
writing 'system'...
OKAY [ 43.636s]
sending 'system' (575387 KB)...
OKAY [ 36.324s]
writing 'system'...
OKAY [ 36.938s]
finished. total time: 166.385s

H:\platform-tools>mfastboot flash modem NON-HLOS.bin
sending 'modem' (54276 KB)...
OKAY [  3.720s]
writing 'modem'...
OKAY [  4.811s]
finished. total time: 8.531s

H:\platform-tools>mfastboot erase modemst1
erasing 'modemst1'...
OKAY [  0.789s]
finished. total time: 0.790s

H:\platform-tools>mfastboot erase modemst2
erasing 'modemst2'...
OKAY [  0.816s]
finished. total time: 0.817s

H:\platform-tools>mfastboot flash fsg fsg.mbn
sending 'fsg' (226 KB)...
OKAY [  0.380s]
writing 'fsg'...
OKAY [  1.154s]
finished. total time: 1.535s

H:\platform-tools>mfastboot erase cache
erasing 'cache'...
OKAY [  2.822s]
finished. total time: 2.823s

H:\platform-tools>mfastboot erase userdata
erasing 'userdata'...
OKAY [ 18.879s]
finished. total time: 18.879s

H:\platform-tools>mfastboot erase customize
erasing 'customize'...
OKAY [  0.182s]
finished. total time: 0.182s

H:\platform-tools>mfastboot erase clogo
erasing 'clogo'...
OKAY [  0.604s]
finished. total time: 0.604s

H:\platform-tools>mfastboot reboot
rebooting...

finished. total time: 0.001s

H:\platform-tools>