


Please note that the iPhone 4 was discontinued on September 2013, so it might not be supported by Spotify anymore, which could be the cause of the problem. Try clearing the cache and data of the Spotify app on the iPhone 4.Ĭontact Spotify Support, they will be able to troubleshoot and help you resolve the issue.

Try updating the Spotify app on the iPhone 4, as well as making sure that the device has the latest version of iOS installed.

To resolve the issue, you could try the following steps:Ĭheck if you're logged in on any other devices and log out of them if necessary. Your account may be blocked, this can happen when Spotify detects any suspicious activity on an account, if it's the case you should contact Spotify support and they will help you to unblock your account. The iPhone 4 may not be compatible with the current version of the Spotify app, and this could be causing the login failure. There might be an issue with the device you are trying to use. If you are already using the account on two devices and trying to log in on the third one, you will receive the 409 error. Spotify Duo package allows you to use the account on two devices at the same time. Your account may have reached the maximum number of devices that can be active at the same time. In this case, it could be caused by a few different things: The error code 409 typically indicates a conflict with the current state of the target resource. It sounds like you are trying to log in to your Spotify Duo account on your daughter's iPhone 4 but are encountering a login failure with error code 409. login error 409 on an old iPhone 4 (MC603ZP).
