If your android device continues bugging you with space issues, Twunhu Apps has the right solutions for your problem.
Follow the four steps below :
Step 1 of 4:
If you’re getting the error message ‘insufficient storage available’ you need to delete the app cache. This is automated by a free app, or can be manually achieved by deleting individual app caches. Here’s how to fix Android’s ‘insufficient storage available’ error message.
The ‘insufficient storage available’ error often pops up if you have moved large amounts of media from the Android device’s physical storage to a microSD card, and is caused by the cache not being properly erased.
You can clear your app cache in a matter of seconds or a few minutes, depending on just how bad the problem is on your device. If it allows you to install it, downloading a small (around 2MB) app can automatically clear the app cache on your behalf; if your phone won’t allow the installation then you’ll need to manually go through deleting the cache for each app. See step 4 for instructions on how to do this.
Step 2 of 4:
If you haven’t already tried deleting anything on your phone and are receiving the ‘insufficient storage available’ error, this would be a good place to start. There are more than likely apps you have previously downloaded, never used and forgotten about – check the app tray rather than the home screens for these, since the app tray will list everything on your phone and, unless you’re running Marshmallow (which lets you uninstall apps from the home screen), makes it easier to quickly uninstall them.
Photos, videos and your downloads folder are another good place to check. If you’re using WhatsApp, also check its files in a File Manager app or by plugging it into your PC as it may well be storing every photo and video you send as well as those you receive.
Step 3 of 4:
The app cache cleaner is very easy to use; you simply opent the app and let it scan your device for your app’s stored cache. You can then either clear the caches indivually by clicking on the rubbish bin icon next to each app, or delete all the app caches by selected the Clear button at the bottom of the screen.
Assuming you already had some space on your internal storage, despite the error messages, you should now be able to download or update the app you were having difficulty with.
If, however, you are having problems even installing the app cache cleaner app, go to the next step and we’ll show you how to do its job without using an app.
Step 4 of 4:
How to manually clear Android’s app cache
The third-party app we mention in this workshop isn’t strictly necessary, since it’s possible for you to perform the same action without it, but it does automate and therefore make easier and quicker the task of clearing your app cache. However, if your phone or tablet is being so fussy about insufficient storage that it won’t even let you install this small app, here’s how to manually clear the app cache.
First check whether your device has an option to clear the cache for all apps without manually clearing each. For example, I can quickly clear the app cache on my Samsung Galaxy S6 by opening the Settings menu and choosing Storage, then taping on Cached data and selecting Delete in the prompt ‘Clear cached data. This will clear cached data for all apps’.
Reference : http://www.pcadvisor.co.uk/