Being a subscriber to Play Music can be a little bit confusing and a hassle considering there is once again a limit on the amount of devices replaced (or deauthorized) on a account within a single year. The reason why this policy has been reimposed is because of the music industry itself. Record labels feel that not having a limit of replacements set allow customers to abuse the system and allow others to piggyback off of them. They are worried about missing out on potential customers if they can simply share an account with an already present subscriber.
Google is working to fix the issue, though. It is known that the entire flashing process on an Android device uses a deauthorization and that hurts subscribers. Google did not share what exactly its fix is, nor did it offer a completion time. So, for now, just sit tight and wait until Google takes care of this mess.
Source: iTechTriad
Via: Ausdroid
Here is a pretty simple fix. If user wants to authorize a device on a play music subscriber account, only allow specific IMEI Ids to access it. Google must be using something else to identify the device. That might not be the most secure thing though.
IMEI are only present on devices with Sim card. So, what about tablets, media players, TVs, toasters or any other device with Android and no Sim card?