Please tell us some basic information before asking for help:
Model Name: ROG Phone 2
Firmware Version: 17.0240.2007.27
Rooted or not: Not
Frequency of Occurrence: very frequent
APP Name & APP Version (If your issue relates to the app):
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
Due to charging issue, i want to downgrade to previous version. May i know how to perform downgrade?