I am running iOS 10.2.1 on an iPhone 5S, with a doubleH3lix jailbreak. The phone was receiving the "Storage Almost Full" warning before I jailbroke it. I reset the phone to factory settings (got the error after installing one app), jailbroke it, and ran two different cleaning apps, one of which is iCleaner.
I am guessing that whatever cache iCleaner is looking at is the same one causing the warning. But, as you can see, I still have 9GB of free space on this device.
Is there a way to clear this cache and correct the free space showing in iCleaner and stop the warning from being triggered?