If you do a hard reset on a galaxy S5 will it restore the original OS

[kmcclen]

Thanks

 

[PapaGary]

It will restore to the existing OS.

 

[kmcclen]

Thanks that's what I thought

 

[Laura Knotek]

If you want to roll back to an earlier version, you'll need to find the firmware for your model and flash it.

 

[kmcclen]

Is that easy to do