1, if the freebuds3 charging box is too low, it will not be able to upgrade (higher power can be directly upgraded), so it is recommended that you restore factory Settings first.
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2, the method of restoring factory Settings: two electric earphones into the earphone box, open the box, press and hold the right button outside the earphone box, long press 8s, the light in the earphone box will initially flash white, and then flash red indicating that the recovery has been successful.
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3, after restoring factory Settings, charge to the charging box and headset power is greater than 30% (very important, otherwise the next upgrade will fail)
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2. freebuds 3 Firmware upgrade
1, download the smart life app, many functions of the headset are through the smart life app. After the download is complete, connect to FB3. After the connection is successful, upgrade the latest firmware version 226 on the firmware upgrade page of FB3
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2. Specific steps: Open [Smart Life] and enter the main interface of smart life. Ensure that the headphone is connected and select the headphone card to go to the FreeBud 3 home screen. Click [Check for updates] to enter the upgrade interface. Click Download and Update to start the upgrade.
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3, FB3 will continue to launch new versions, if you encounter problems can first try to restore factory Settings, and then upgrade the latest headset firmware.
Huawei headset has a solution that cannot be charged:
1. You are advised to upgrade the headset firmware to the latest version before using it.
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2. The headset is in an environment with large electromagnetic interference or there are obstacles such as walls between the headset and the mobile phone, resulting in frequent disconnection between the headset and the mobile phone and automatic power consumption.
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3, it is recommended to reduce the use of microwave ovens, subway stations, train stations and other scenes, and the mobile phone and headphones are not blocked by obstacles.
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4. If it is not possible to charge, it is recommended to check whether the earphones or charging box contacts are dirty. Use a dry soft cloth or a small amount of medical alcohol to wipe the metal contacts of the earphones and charging box.
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5, do not use a wet cloth dipped in water to wipe the metal contact, wiping force should not be too large, to avoid earphone water or contact deformation.