Hi @mian94 ,
Check if the latest [https://www.pioneerelectronics.com/PUSA/Support/Downloads|firmware] is installed.
Scroll down to find your model and instructions on how to check what version is installed and if applicable, how to install the update.
'''Note:''' There are two listings for your model in the list so ensure that you get the correct one.
AVH-2400NEX '''v8.15''' 04/22/2020 '''CVJ2790-H.zip'''
AVH-2400NEX '''v18.15''' 04/22/2020 '''CVJ4846-B.zip'''