How to delete a DCIM folder on iPhone?

So my mom gave me her iPhone4 and it has a DCIM with about 100 pictures that I don't need and I want to delete them.
how do I do it?
I tried to search for ways but all I got was how to delete All pictures from the iPhone, I want the pictures on the camera roll.

Recupero dati whatsapp, come si fa?

Perdita dati whatsapp:
trasferisco la mia SIM da un iphone ad un android, installo whatsapp anche su quest'ultimo cellulare ma perdo tutte le vecchie conversazioni e foto/video (su entrambi i cellulari). Come faccio a recuperare tutto il contenuto whatsapp? Grazie

Wtf? Why am I having problems with my iPhones lately?

I've been an iPhone user since the iPhone 3GS and I've never ever had a problem with any of my iPhones, until I got the iPhone 6S Plus, I have gone thru 5 iPhones in just one year! Good thing I got insurance on my phone right?

-The 1st one I had the screen went out after 3 months and was being all weird.
-The second one, the screen was going out as soon as I got it out of the box, so tmobile sent me another one.
-The third one, the speaker and microphone went out after 2 months, when I called people they couldn't hear me, so I took it to Apple and they gave me a new one, after 3 days the touch screen became unresponsive to touch, so I took it to tmobile, they gave me another one
-Now one half of the screen is dark and flickering

like seriously? WTF?! Am I just having bad luck with the iPhone of what? I have never had problems until I got the 6S Plus. Like seriously? This shouldn't be happening… I'm really tempted to switch to a Galaxy phone… Why does this keep happening? I take really good care of my phones, I don't drop them, like wtf is the problem?

Added (1). Like I said I don't drop my phone, I always take good care of my phone and keep it in a case, like this shouldn't be happening to me! Am I just that unlucky?

IPhone won't charge properly?

My iPhone 4 went flat last night so I plugged it into the charger and it turns back on then off and on and off and continued doing this until I unplugged. When it turned back on, it was only for a split second and I could not do anything. I unplugged it for a while then plugged it in again and whenever I check it, it just shows the low battery picture. I have tried holding the home and lock button and it just shows the battery signs. I have tried two different chargers. Is there anything I can do? I really want the photos off of it. That s the main thing I care about.

Should I bring 3 camera's to the concert on Thursday?

Hi, I have a fuji film camera, my iPhone 4S (16GB), and my iPod Touch 5th (32 GB) Gen. My iPhone has that thing when you take a picture, it automatically goes into the other Apple device. Should I just take the Fuji Film camera?

Added (1). P.S. The band is: The Who and Joan Jett for the opening.

How much will an iPhone 6s be at Verizon?

I've been with verizon for years and I will have a phone upgrade available soon. Does anyone know how much the iPhone 6s is going for if I want to take the option to pay for the phone in full?