iPhone 6: Apple logo showing but not turning on

[OneEyed55]

Hello,

My phone (iPhone 6 64GB, iOS 10.2) had been acting weird since yesterday. It started with all of my Whatsapp messages getting randomly deleted. I assumed it happened because I had little free space available (about 100MB), so I proceeded by connecting it to my computer and transfering all of my photos and videos, so that I could then delete some from my phone (they took up over 40GB).
Everything seemed to have gone well, and I did delete many of my pictures and videos. But when I woke up today, I found it restoring my photos (something it had done a few times before, but never causing any issue), and when I opened the Photos app it kept crashing, then tried to restore again. The whole thing went on for quite a while until I decided to reset my settings. The Photos problem persisted, so I decided to do a hard reset holding down the power and home buttons and it hasn't turned on since. Whenever I press the power button, the Apple logo shows for a few seconds, then the phone turns off again. It does not appear connected to my Mac either, even though it is.
I will not be able to take it to a service point today, which is why I thought I'd check with you guys first. What do you think is the issue here? Has anyone had a similar problem before?

Any help would be much appreciated. Thank you.

 

[timeconsumer]

A similar thing happened to my GF's iPhone 7 where it wouldn't get past the Apple logo. I'm not sure what caused the issue but I ended up completely restoring iOS to factory settings; I had to use "recovery mode" to do this. With recovery mode, you have two options:

1. If you choose "Update" then "iTunes will try to reinstall iOS without erasing your data".​

If that doesn't work, then option 2 is:

2. Using "Restore" which erases everything and re-installs a fresh copy of iOS.​

More information here: https://support.apple.com/en-us/HT201263

 

[akash.nu]

With such issues, it's always advisable to restore. Put your phone into DFU mode and connect with the laptop. iTunes will notice this and give you an option to restore.

 

[OneEyed55]

A similar thing happened to my GF's iPhone 7 where it wouldn't get past the Apple logo. I'm not sure what caused the issue but I ended up completely restoring iOS to factory settings; I had to use "recovery mode" to do this. With recovery mode, you have two options:

1. If you choose "Update" then "iTunes will try to reinstall iOS without erasing your data".​

If that doesn't work, then option 2 is:

2. Using "Restore" which erases everything and re-installs a fresh copy of iOS.​

More information here: https://support.apple.com/en-us/HT201263

With such issues, it's always advisable to restore. Put your phone into DFU mode and connect with the laptop. iTunes will notice this and give you an option to restore.

Thank you both for your answers, you've been very helpful. I just restored it and it is fine. Cheers!