My iphone 4s wouldn't switch on?

My iphone 4s was in the cupboard for about 2 weeks unused, and then when i tried switch it on, it's not working. When i plug it into the power adapter, only the backlight comes and stays for some seconds and goes off. It happens again and again, time to time. I checked if the LCI's are activated, but no. I also tried to reset it by holding the Home button and the Sleep/Wake button together, still no luck. What is happened and what can i do

Try turning it off agian and then on and then you should wait a bit to let the temputure be normal becuae if an iphone gets to hot or cold it will turn off then after you wait try turning it off and on again and see if it works if not then you can try going to the apple store so you don't cause any more damage to your phone but wait a day or two before you go

Sounds to me like your charger is broken, the USB adapted bit. Apart from this, incase your phone has somehow got damp in the cupboard by general water vapour from it being in a hot place, simply just place it in a bag of rice for 2 hours, with the back case removed. Iphones are easy to fix.

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