Phone still stuck in a bootloop after flashing official firmware with Odin! I successfully flashed a stock ROM on my Galaxy Note 4 using Odin 3.13.1 but, unfortunatelly, the bootloop is not gone.

Device info: 


SM-N910C
unrooted
Android 6.0.1 Marshmallow


Bootloop sequence: Samsung boot screen —> Android is starting... Optimising Apps 2 of 2. —> Android is starting... Starting apps. —> LOOP

What are my options to restore my personal data from now on?
Hoping that you have not wiped your data while flashing firmware using Odin, the process of data retrieval can be variably difficult. The best way I can think of is to flash a custom recovery on your device then mount desired partitions.
PS I have no information whether your phone is rooted or not, so just providing the most workable way.