If you have not received the OxygenOS 4.1.3 OTA update, you can update your Oneplus 3/3T to OxygenOS 4.1.3 manually by downloading the firmware. Check out the guide given below to know how to install the OxygenOS OTA update and full firmware update manually on OnePlus 3/3T. Before jump to the installation guide, let us what is new in OxygenOS 4.1.3.

Features and changelogs of OxygenOS 4.1.3: Note: – Before start installing the OxygenOS 4.1.3 update (OTA/Full ROM) on OnePlus 3/3T manually, make sure that your device is fully charged (60-80% battery charge remaining). – To install the OxygenOS 4.1.3 OTA update your device should be running on OxygenOS 4.1.1. – Though you can install full ROM via TWRP recovery, it is recommended stock recovery. – Though the process will not wipe your data, it is recommended to make a backup of important data, just in case. Downloads: OnePlus 3: Download OxygenOS 4.1.3 OTA update [HERE], Full ROM [HERE] OnePlus 3T: Download OxygenOS 4.1.3 OTA update [HERE], Full ROM [HERE]

How to Install OxygenOS 4.1.3 Update on OnePlus 3/OnePlus 3T

OTA Update Method:

  1. Download OxygenOS 4.1.3 OTA update zip file (link above), and save it on OnePlus 3/3T internal memory.
  2. Boot your phone into stock recovery (switch off the phone, press Power and Volume down buttons together)
  3. In recovery, select Apply Update > Choose from Internal Storage > browse the OTA update zip file
  4. It will start installing the update. Wait until the process complete and your phone will restart automatically. Full ROM Update method:
  5. Setup and ADB and fastboot driver on your computer, if you have not it already on your PC
  6. Download full ROM file (link above) and save it in the adb installation folder.
  7. Enable ‘USB Debugging’ on your phone by going to ‘Developer Options’ menu.
  8. Turn off the phone and boot into stock recovery mode.
  9. Choose Install from ADB Sideload, then connect your phone to your PC.
  10. Go to the ADB installation folder (where ROM file is saved) and open a command window from there.
  11. Issue the command adb devices to check your connection
  12. If your device is listed, then issue the below command to flash the ROM: adb sideload <filename.zip>
  13. Once the installation process is finished, reboot your phone. (Source – OnePlus, 1, 2)