Not related to firmware update, the way android is managing disk mess all setting openwrt. What I mean is if you set download path to external USB3 disk in Aria2 it will not be accessible if you plug any other disk. It change from sda1 to sdb1. User who change conf and download directory to external disk like me should be aware of this situation when reporting lost of conf or aria2 problems. Unplug post plug disk will restore to sda1 with reboot