How to speed up your old iPhone.
The fact is that France has banned Apple from slowing down its devices in the country. If you change the region, for example, on iPhone 6s or iPhone 7 to France, the changes will be very noticeable. This hack sometimes works on older iPads as well.
How to do it:
1. Open the settings, go to «General» and select «Language & region».
2. Select «France» and click on «Change to France».
We also enter payment details with a French address. Please read this manual from Apple. This is important to avoid deleting some data and losing money.