I dropped my 6s in a pool. Apple is offering a replacement for a flat fee but my concern is to get the damaged phone to turn on so I can at least retrieve data...photos videos etc. I was referred to a local franchise repair shop to repair. They claim they soaked and cleaned the board and tried replacing the battery and deemed it Unrepairable. Is it worth me trying this tutorial listed myself in hopes I would put more effort into repairing it?