What options do I have if the motherboard is damaged?
I have an iPhone 6, 64 G, silver
Recently, the phone will not hold a charge or very inconsistently holds a charge.
I took my phone to a repair shop and they told me it could be the charger port was dirty or damaged or the battery was dead.
However, after checking, they told me the motherboard was broken and said there was nothing to be done.
Is this really the truth?
iPhone 6, iOS 10.2, 64G Silver