How to upload kiosk photo？
1. Product photo (Size: 1080*1080)
2. Category Photo (Size: 1080*1080)
3. Top - left Logo Photo (Size: 1080*1080) / Payment Background Image (Size： 1080*1920)
3.1. Go "POS setting"
3.2. select "kiosk" setting
3.3. Go "Admin "
3.4. Upload Logo
3.5. Upload Background Image
3.6. Click "Save"
4. Lock Screen Photo Size： 1080*1920
4.1. Click "Aimer" Logo
4.2. Enter Pin code
4.3. Click "Picture Manager"
4.4. Click "Add" to upload photo
