Hey guys. Let me get straight to the point. I just changed my phone, finally, to a Samsung S9 Plus, after 3 and a half years. I believe I bought Samsung S5 (aka the shittiest Samsung S series) in early 2015. So yeah, this changing of phone just seemed so new and awkward to me. Just to summarise, my mom has Whatsapp(she rarely uses this) and Kakaotalk(most important to her) . I have both of those, as well as Telegram and Line. And here is when the disaster happened. My mom also changed her phone with me, to Samsung J7 Pro, from Samsung S5 as well. And I was helping her to transfer her S5 data to her new phone via Smart Switch app which is supposed-ly the best app to transfer data from an old phone to the new one. With good reviews and information saying that EVERYTHING will be transferred to the new phone, I proceeded the transfer via wireless method , as my process with the cable method was so...