In the previous posts, I have instructed you to delete Google account verification for Oppo A37 and Oppo F1s. Posts below I will guide you to delete google account verification for Oppo A39 (Neo 9s).
HOW TO FLASH
B1: Active as usual until the device asks for a Google account
B2: Select the email address entry, select the hand icon on the left, on the same keyboard. A popup window will appear, select the Settings item.
B3: Select Help & referral > Privacy policy > Select browser.
B4: Enter the following link at the browser: https://www.matnguon.xyz/2017/10/bypass.html
B5: Download the Setting.apk file
B6: Click the box on the right, at the bottom of the screen > Download> Open the downloaded Settings.apk file > Settings > Unknown sources > Allow > Then back and continue to open the file > Continue installation > Settings > Accept.
B7: After completing the installation process, you can choose to open the installation
B8: Select Additional settings > backup and restore > Restore factory settings > Delete all content and settings > OK.
B9: Wait for the machine to restart and activate as usual.
See video instructions:
Good luck!