Iphone 6 Showing Battery But Not Turning On. Hold down the power button and the Volume Down button at the same time. Hold both buttons for five seconds.

The hidden cause for your iPhone X not turning on may range from a corrupt software update to the faulty battery to many other software and hardware issues. In turn your phone is able to save battery power thanks to the darker colors. Also check if the phone has booted up by plugging the phone into a computer and checking iTunes.
After about eight seconds release the power button while continuing to hold down the Volume Down button until your iPhone appears in iTunes.
However if youre having issues after having replaced the battery on your iPhone there are a few things you can do to fix it including performing a hard. If it is not the battery it could be a different hardware problem. If youre confident that the phones charging port is properly cleaned and the charging cable that youre using is good quality leave the phone charging for a little longer. Connect your iPhone to your computer.

