Chosen Solution
Following water entering my phone, I’ve used a tool kit to open it and let it dry (some 24 hours after water got in). After drying the water, I assembled the phone back and connected to the power - but the phone is dead. Important to mention that after the water went in, the phone was inoperable and got VERY hot - I had nothing to do about it (couldn’t open it to disconnect the battery and it had shut down / not responding). Thank you for your help!
Your phone probably has a VDD_main short. I would take it to a repairer. They will relieve the short and check the rest of your phone for water damage while it is apart.
There must be VDD_Main short,While the phone is in water damage condition battery voltage makes damage some parts that cause that problem,So better examming the board there must be some parts burn or short.