Hi
jahir1378mynI am glad to hear that your primary issue was fixed. For the drain issue, to be honest, the simplest and easiest way is performing the Factory Reset, lol. Yet, you still can try some troubleshooting as below:
1. Enter "Safe Mode" and leave a 80%-100% phone in sleep(idle) mode in a night.
# How to enter and exit "Safe Mode"
https://www.asus.com/support/FAQ/1005163/If the battery works well in "Safe Mode", please check on any disturbance from the installed 3rd party Apps.
2. Try to turn off the "Fingerprint"
Settings>Security>Fingerprint
3. Update your apps to the latest version, avoiding the conflict between the firmware and the apps
4. Is there any zone heating up while using/idling? What do you mean update July security patch? Since the V429 is released in July, do you mean this firmware version?