kintex 7 bpi programming error

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shand_12

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I am two custom boards which use a kintex 7 (xc7k325t-2) and a micron 1gb NOR Flash (MT28EW01GABA1HPC-0SIT) as programmable memory.I am able to program the flash in one board were as in other board the programming gets failed at verify stage.I am able to program the flash without the verify option but upon power cycle the changes are not reflected on the hardware.I am able to erase the flash and no errors during blank check operation.This is the error i get when i try to program the flash with program and verify option selected.

The configuration registers after programming is shown below
NOTE : I am using vivado 2016.4 to program the device.
 

Bad flash? Solder blob on the PCB?obviously you can power and read the device, just not program it. Have you looked at signals with a scope? That would be my first step.
 

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