Q: Cannot take pictures with iPhone 5,memory full

Good Morning fouabouo1,

I understand you are not able to take pictures on your iPhone 5S because you are getting an error message regarding memory, is that right?   Just to confirm the data that is used and available  on your iPhone, take a look at the article below:

See how much storage you've used on your iPhone, iPad, and iPod touch - Apple Support
https://support.apple.com/en-us/HT201656

Are you getting any errors when you try to save other data on your iPhone besides pictures?  For example, are you able to record a voice memo?

Voice Memos at a glance - iPhone

If you can save other data to your iPhone, but not pictures, I would suggest updating your iOS.  Your profile indicates you are using iOS 7.1.  Since the camera app is part of the operating system, I would suggest backing up your iPhone and then updating to iOS 8.2. 

Update the iOS software on your iPhone, iPad, and iPod touch - Apple Support
https://support.apple.com/en-us/HT201656

Before you update

Back up your device to iCloud or iTunes.

Update your device wirelessly

The easiest way to update your device is wirelessly, also called “over the air.” Here’s how:

1. Plug in your device to a power source.
2. Tap Settings > General > Software Update.
3. Tap Download and Install. Updates might download automatically while your device is connected to Wi-Fi and a power source.
4. Tap Install, or tap Later to install the update later. If you use a passcode, you'll need to enter it before installing the update.
5. If you have some free space, but not enough to update over the air, you can either update using iTunes or delete content manually from your device. Whether you use iTunes or update over the air, you'll have the same amount of free space on your device after you update.

 

I hope this information helps ....

- Judy