Please need help with read back error while trying to back up my DZ09 firmware.

Hi i have the DZ09 single sim (the model with out there jack plug port)
I have tried on a win7 pc and now on a winxp sp1 comp as well.
have not even got past the green spinning circle bit lol.

I keep getting a failed to enumerate certain com port.

I have also had the failed error too with the hint bit saying possibly power up to soon.

Im using windows 7 on a asus laptop and also using winxsp1 on a mac via parallels app.
my firmware info as follows.
[VERSION]
NX9_61D_240_V2_1_
W90_CAM_32_T3_L3_
C4_G4_160310
[BRANCH]
11CW1352MP
GPLUS61A_11C_NX9
BUILD: BUILD_NO
SERIAL#
[BUILD TIME]
2016/03/10 11:36
[MRE VERSION] 3100
HAL_VERNO

from xda-developers http://ift.tt/1VTdbkX
via IFTTT