iOS 9: Mobile data is consumed very quickly – Resolved

If you have installed on your iPhone, the new iOS 9, then it can happen that your mobile data volume is consumed despite Wi-Fi is activated. This means that your iPhone with iOS 9 always has access to the mobile data network of your mobile operator.

The reason is as follows:

In iOS 9 the option “Wi-Fi Assist” is automatically activated. This option is intended to offset a slow Wi-Fi connection by the simultaneous use of mobile data. Is your Internet at home slower than Apple addresses it, then the mobile data is automatically activated in order to obtain a certain speed limit.

That is why we recommend you to disable Wi-Fi Assist on the iPhone with iOS 9 to rest your mobile data volume and to refrain from unwanted costs. To disable Wi-Fi-Assist on the iPhone with iOS 9, proceed as follows:

1. Open Settings --> Cellular
2. Disable Wi-Fi Assist using the controller

Should you own a iPhone4, then you cannot find the function because wireless Assist is only possible with an iPhone supporting 4G / LTE connections.

You know now why your iPhone with iOS 9 consumes more data volume as it was the case in the previous iOS versions.

About the Author

Manuel Solvemix Team small

Manuel has been involved with technology for more than 15 years, especially with mobile phones, smartphones and PC systems and shares his passion here in this blog. If he can help someone with a technical problem, he is especially happy about it.