I have a Iphone 5s with the latest software update. Made a video and was promptly informed that I was low on disk space. Have been trying to delete photos and videos with negative results. I did have Icloud turned of. Turned it on and turned on the Icloud Photo Library. I also turned on the Optimize Iphone storage option. Nothing is happening. There has been a message under Icloud Photo Library telling me that I'm low on disk space and the phone is uploading 214 items. This message has been there for two days now. I do have 4.99 GB of storage available in Icloud. My photos and videos are taking up 2.2 GB of disk space on my phone.