(05-03-2018, 12:08 PM)bobbyzoltan Yes, that's exactly the issue.
lets confirm some things properly, cos you've posted two build numbers and the PCB of your device has been changed as well
X601-H536A1-M-160715V18 was the build number before you changed the PCB
when did you successfully flash this ROM build [ X601-H536A1-M-160715V18 ] ; before or after changing the PCB?
when did you unsuccessfully flash the same ROM build [ X601-H536A1-M-160715V18 ] ; before or after changing PCB?
and where does this build number [ X601-H536A1-N-170520V152 ] come in?