Apple has been fined 25 million euros ($27m) for slowing down older iPhone models without giving any clarity to its consumers.

The fine was imposed by France’s competition and fraud watchdog DGCCRF, which said consumers were not warned.

In 2017, Apple confirmed that it did slow down some iPhones, but said it only did so to “prolong the life” of the devices.

Apple said in a statement that it had resolved the issue with the watchdog.

DGCCRF said there was a lack of consumer information around the risk that older phones would slow down, highlighting that once the update had been carried out, it was impossible to reverse the process to go back to the previous iOS. 

The regulator also stated that these updates, released in 2017, included a “dynamic power management system that could, under certain conditions and conditions, especially when the batteries were old, slow down the operation of the iPhone 6, SE and 7 models. Unable to return to the previous version of the operating system, many consumers would have been forced to change their battery or even buy a new phone.”

Apple has implemented this practice on several iPhones. According to the DGCCRF report, these older iPhone models are prone to getting slower due to the updates:

Apple has accepted the fine, and will also have to set up an informative statement on the matter, to publish its French website for a month.