Clear App Cache
When a OnePlus app starts crashing, freezing, or showing outdated content, leftover cache files are often the cause. Temporary data can pile up and overlap over time, leading to glitches that have nothing to do with your actual settings or account. Clearing the cache resets these files without touching your personal data.
Change Google Backup Account
If you have several Google Accounts added to your OnePlus phone, your backups can end up saved under the wrong one. That makes it hard to find contacts, app data, or settings later, especially after a reset or when setting up a new device. Switching which account handles Backup fixes where that data actually lands.
Clear Browser Cache in Chrome
If Chrome on your OnePlus keeps showing outdated versions of a page or feels sluggish when loading images, a bloated cache is usually the reason. The cache stores images and files from visited pages to speed up reloading, but over time it can grow large and take up storage. Clearing it forces Chrome to fetch fresh content on the next visit.
Switch Between 12- and 24-Hour Clock Format
When your OnePlus clock suddenly shows military time after setting up a new region, or you want the classic AM/PM display back on your lock screen, the format did not change by itself. OxygenOS ties the hour style to your selected region, so you need to switch it manually to get the display you are used to. Without this fix, every screen showing the time keeps the format tied to whatever region you picked during setup.
Enable or Disable Google Backup
If your OnePlus phone stops uploading app data, contacts, and call history to Google Drive, you probably never checked whether Back up to Google Drive is actually turned on. This backup runs in the background and only keeps working while the toggle stays active, so a forgotten setting can mean silent data loss during a reset or device swap. Some people also switch it off on purpose to save mobile data or Drive storage without realizing what that costs them later.