I did an HP laptop motherboard like that several times. It worked the first two times quite well. I got another year and a half the first time, and almost a year the second time. After that, I couldn't bring it back. Phones probably are more finicky about temperature and the bake-time length, so definitely watch all the videos you can find, but you're still at the mercy of your own decision. You want to use a combination that gets the motherboard hot enough for a long enough duration of time, to melt the solder and re-flow it (a "natural" process), but not so long as to have the solder fall off the joints, or melt parts that may be "delicate". I'm certain that you'll have to make some "foil hats" to protect some areas of the board and / or chips... Good luck!
