[HELP!] My phone just keeps buzzing few times and then its dead

So, few days ago, I was sitting in a hot thub and I forgot to take my phone off my pocket. I think it was in the water for at least 20 seconds, and unfortunately I was too panic and tried to turn my phone on, at first, it's just show an error screen, like some error list or so, after then, I tried to turn it on again, it only gave me a lit-black screen with shades of water behind the screen, and it's unresponsive.

After I went home, I took everything apart, and I gave my phone some alcohol bathe, and put the battery under the sun, and then whenever I charged it, it only shows lit-black screen, but this time, there was no shade of water, and it shows some respond to charger - as it's vibrating-, and the notification light also turned on as it's charged, but then it's buzzing again and dead, it keeps happening everytime I plug it into the charger.

My only problem is, it has 4000+ pictures that I haven't backed up yet from my travel around the world and I'm just so sad about it. Is there any way that I can fix my phone or atleast save the datas?

My phone is Xiaomi Redmi 3s fyi.

I'll appreciate your helps! Thank you so much