As we all know, storage is never as much as it appears to be. For example, a 32GB phone will have much less space because of preinstalled Apps, operating system and wasted space because of how OS format the storage medium. Android users are facing the issue of insufficient disk space. When the user tries to download an App of size more than 10MB, it displays the error of insufficient disk space although there is plenty of space left on the phone along with 8GB SD card too. Moreover, when the users dial *#9900# they are unable to get the right hidden menu, instead only Debug Utils and MTKLogger is displayed. The correct menu of *#9900# lets you delete dump-state which results in clearing up your phone. Below are the solutions Android users can try to resolve the issue of insufficient disk space and *#9900# problem.
With your preloaded Apps that you don’t use, disable and uninstall their updates. After they are disabled, you can clear the data from them to get more space. To disable and uninstall the Apps, go to Settings and access …read more
Read more here:: Fix Insufficient disk space, ‘*#9900#’ problem in Android phones