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Hi I have a problem with my iPhone 6s Plus I recently went on vacation to Barbadoes the time I was there I would have my iPhone charging with us plug phone was fine few days after had it on the portable charger Charged at 22% after that it won’t come on can someone help

I suspect that the charger you used may have damaged the charging circuit inside the phone. Can you elaborate more on the type of charger you used (the portable one, the regular one…). Cheap chargers have a tendency to send voltage spikes or unregulated voltage through to the phone.