Before you do clean and erase your devices, please read this guide about Macgo iPhone SafeEraser settings. Click Menu button on the top right corner of the interface, then the settings window pops up. There are several options for you to choose.
Preparations you need to do:
You can choose your ideal language of iPhone SafeEraser, just choose one and then restart to apply the language.
You may customize the path where to store the photos you want to backup. In Photo backup path tab, click Modify button and then select the target folder. And you can open the path quick by clicking the Open button.
If you want to change the folder where you store the exported photos, choose Photo export path tab and then click Modify button and select the destination folder. Click Open button to open the folder quickly.
In the Notification tab, you can choose either send you the boot cleanup remind or not.
There are 3 levels of devices erasing.