Deleted my OS on Samsung On5, no backup!

[Android Central Question]

Alright, so i got a phone from a friend a couple of weeks ago and he had customized it to be faster. He deleted a lot of the original apps (maps, calculator, etc.) . I decided to try to factory reset it and in doing so i ended up wiping everything, including the os. It takes me to teamwin every time i hold down power home and volume up, and i have no backup. How can i install another os to my phone?? I have been reading articles but i cant find out how do download an os to my phone. i have an sd card, but what websites could i go to to install the os?

 

[L0n3N1nja]

I don't know a lot about it myself, but Xda is usually a good website for this type of thing.

https://www.xda-developers.com

 

[Rukbat]

We have an article here on doing that with Samsung phones. (Restoring the O on a Samsung is boring enough to put you into a coma, but it's simple.) See [Samsung] How to flash Stock ROM via ODIN.