Prerequisites for firmware upgrade:
1. realme Link is the latest version
Please make sure your realme Link APP is the latest version, you can open the realme Link APP > click on Me > Settings > Version update to check for updates (you can also download the latest version of realme Link in the App store)
2. Maintain sufficient power
a. If the current battery of the neckband earphone is more than 40%, it should be kept turned on;
b. TWS Bluetooth earphones need to ensure that the power of both the earphone and the charging case needs to be more than 50%. Both ears must be placed in the charging case and in the open state. Do not operate the earphone during the upgrade process.
Operation steps：
1. When the phone is connected to the Bluetooth earphone, and there is a new version of the firmware. A pop-up window will prompt you to upgrade when you open the realme Link APP, click to "start" the upgrade;
2. If you do not receive the upgrade reminder, open the realme Link APP > select the corresponding Bluetooth earphone to enter the function setting > click the 2 small dots in the upper right corner > enter the device details > select the firmware upgrade.
Note: Do not use or charge the earphone during the upgrade process, which may cause the upgrade to fail.
After the firmware upgrade is complete：
a. After the upgrade is completed, the earphone is still restarting. When you open the cover, you will find that the indicator light is red. Please close the cover again and wait for 5 seconds before using it.
b. The new version of the earphone does not support fallback.
If the upgrade fails during the firmware upgrade process:
Please confirm that the firmware upgrade conditions are met. After ensuring that the conditions are met, please refer to How to reset the realme earphones, Try again after resting the earphone.
If the above steps cannot solve your problem, please bring your purchase certificate and go to the nearest realme customer service center.
