After a charging port repair, the power button is intermitten

After a replacement charging port on the Note 1 N7000 the power button seems to be intermittent works some times and then will randomly turn off and reboot. Other times when I press the power button it will show the restart/airplane mode menu.

Pretty sure it isn't a software issue as it happened straight after the repair.

Just wondering if anybody else has had the same issue and managed to fix it?

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