How to backup debug keystore (Unsigned(debug)) that is using on published App on Playstore.

In the past ,I dont know that i need to create keystore for release and publish my App on playstore.

So i have been using Unsigned(debug) key for my App that publishing on Playstore right now.
this is the Key i am using

97183-screen-shot-2560-07-05-at-163126.png

(This is my app https://play.google.com/store/apps/details?id=com.tkaewkunha.hilo)

I want to know that.

  1. Can i use other computer to build and update the App on PlayStore. And How to do it?

  2. If i can on first question, Which/ Where is keystore file should i backup.

Thank you.

  1. Yes, copy the file debug.keystore to the computer you build your App with
  2. The debug.keystore is located here: %HOMEPATH%.android\debug.keystore
    Usually this means something like: C:\Users\Username.android\debug.keystore