Please capitalize where necessary: creating debian cd sets, official and unofficial.
A: Creating Debian CD sets, official and unofficial.

Please capitalize where necessary: the samsung galaxy s9 and galaxy s9 plus are also the first samsung devices with built-in band 14 access.
A: The Samsung Galaxy S9 and Galaxy S9 Plus are also the first Samsung devices with built-in Band 14 access.

Please capitalize where necessary: the present work is focusing openly upon basic elements to a new understanding of the background of moses and of important circumstances within our old history.
A: The present work is focusing openly upon basic elements to a new understanding of the background of Moses and of important circumstances within our old history.

Please capitalize where necessary: we did that, so it doesn't show the problem anymore but you can check it out by yourself i guess.
A:
We did that, so it doesn't show the problem anymore but you can check it out by yourself i guess.