Additionally to disassembling, another advice:
if you want to speed up the drying process, do not use rice. Instead, try to desiccating silica gel. A lot.
Put it in an air-tight container, and put your phone in (or the parts, if you disassembled it). Direct contact is not necessary, but the closer, the better.
Two pro tips:
a) If you have a university near you, and know someone working in a life sciences lab there, ask them if you could borrow some hundred grams. The stuff is rather inexpensive and can be dehydrated in an oven, which most labs do themselves. Otherwise you can order it online. A kilogram should be around 20€, depending on the vendor.
b) If you don’t know anyone in a lab, ask at your local electronics store. They often have quite a stack of the tiny sachets filled with silica desiccant which come with nearly every box of electronics.
Careful: never, ever use room desiccants you can buy in your local hobby market. Most of them involve a solution process, producing quite an amount of liquid (salts solution!), and some heat (the solution process is exothermic). Both is not suitable for drying electronics.