Fix my apps and games?

I am looking to switch on my Samsung mobile after a few months Can you help?

Samsung Mobile?

Samsung curve?

How to tether my s20 plus pro to my pc with usb?

restore my mobile?

phone works with head set but when i use the phone with out the head set i ?

Samsung A3?

samsung gt-s5230?

How to fix my Samsung galaxy s3 phone?

Samsung Galaxy Ace plus is using internet but how?

How to improve internal memory?

unlock?