Help T o Downgrad Htc M9

Hello Every Bordy
i wan t to Downgrade my M9 HimaWl From N70 To M60
Can I downgrade It
From 0PJAIMG_HIMA_WL_N70_SENSE80_VZW_MR_VERIZON_WWE_4.4 9.605.11_Radio_2.15.C1144077@70710_CNV_1.26_002_re lease_509010_signed_2_4

TO
0PJAIMG_HIMA_WL_M60_SENSE70_VZW_MR_VERIZON_WWE_3.3 7.605.7_Radio_2.15.C1144077@60105_CNV_1.26_002_rel ease_469777_signed_2_4