Authors Note: This post is applicable to the CR10s series only

As soon as you setup your CR10s printer for the first time – there are a few things you should do to insure quality and safety of your printer. One of them is to upgrade your firmware and I would recommend that you upgrade to the latest version of Marlin firmware.  You can download from the Marlin website – http://marlinfw.org/docs/basics/introduction.html or if you need a little more guidance – I recommend downloading the Universal firmware package from TH3D http://th3dstudio.freshdesk.com/support/solutions/articles/43000460446-th3d-unified-firmware-package

Here are some good sources to check out

What you need: