The phrase "fragmentation problem" refers to a situation where something is divided into many small pieces or parts, making it difficult to understand or use as a whole. Full definition
We were telling you about Android fragmentation problems and how annoying they can get and, apparently the tech behemoth has somewhat revised the complaints. (techpp.com)
The sheer number of Android manufacturers and the awesome number of Android devices globally, make fragmentation a problem for Android. (androidheadlines.com)
The more prominent security feature coincides with a larger project at Google to fix Android's nagging version fragmentation problem. (zdnet.com)