Because the iPad Mini 1 is an A5 device, you can use the exploit. This is the most "permanent" DIY method for this specific model.
Bypassing the iCloud Activation Lock on an iPad mini 1 running iOS 9.3.5 is technically challenging because it uses the A5 chip, which has a specific hardware vulnerability bypass icloud ipad mini 1 ios 93 5 better
If you are the original owner and have proof of purchase, Apple will unlock the device for free. Because the iPad Mini 1 is an A5
Once you have bypassed the lock screen and reached the home screen, you will likely face app compatibility issues due to the age of iOS 9.3.5. To make the device useful again: bypass icloud ipad mini 1 ios 93 5 better