中文
含义
创维电视检测到 WiFi 模块工作异常，E7 代码表示无线网络模块初始化失败或通信异常。电视内置的 WiFi 模块（通常为 Realtek/MTK/Broadcom 方案）无法正常启动，或与主板之间的 SDIO/USB 接口通信中断。电视其他功能正常，但无线网络连接不可用，无法使用在线流媒体、系统更新或投屏功能。
常见原因
- WiFi 模块硬件损坏——模块内部芯片故障导致无法正常工作。
- 主板上的 WiFi 模块供电异常（3.3V 或 1.8V 供电缺失或纹波过大）。
- 模块与主板之间的连接器接触不良（可插拔模块）或排线松动。
- 系统软件中 WiFi 驱动异常或配置数据损坏。
- 天线接口松动或天线损坏导致模块检测到天线开路而禁用发射功能。
- 系统更新后 WiFi 固件版本与硬件不兼容。
自助排查
- 重启电视并在设置菜单中检查 WiFi 开关是否被意外关闭，尝试关闭再重新开启 WiFi。
- 进入设置 - 网络 - 高级设置，尝试”忘记所有网络”后重新搜索并连接 WiFi。
- 复位电视的网络设置为出厂默认值（在设置中选择网络重置）。
- 检查电视附近是否有强电磁干扰源（微波炉、无绳电话等），尝试将路由器移近电视。
- 如果电视支持有线网络，使用网线连接测试是否正常——网线正常仅 WiFi 异常可确认问题局限于 WiFi 模块。
English
Meaning
The Skyworth TV has detected a WiFi module abnormality. Code E7 indicates that the wireless network module has failed to initialize or has a communication issue. The built-in WiFi module (typically Realtek/MTK/Broadcom based) cannot start normally, or the SDIO/USB interface with the main board has lost communication. The TV functions normally otherwise, but wireless network connectivity is unavailable — online streaming, system updates, and screen casting features will not work.
Common Causes
- The WiFi module hardware is damaged — the internal chip has failed and cannot operate.
- Power supply to the WiFi module on the main board is abnormal (3.3V or 1.8V missing or excessive ripple).
- The connector between the module and the main board has loose contact (for pluggable modules) or the ribbon cable is loose.
- The WiFi driver in the system software is abnormal or configuration data is corrupted.
- The antenna connector is loose or the antenna is damaged, causing the module to detect an open antenna circuit and disable transmission.
- After a system update, the WiFi firmware version is incompatible with the hardware.
Self-Check Steps
- Restart the TV and check whether WiFi is accidentally turned off in the settings menu. Try turning it off and on again.
- Go to Settings - Network - Advanced Settings, select “Forget All Networks,” then search and reconnect to WiFi.
- Reset the TV’s network settings to factory defaults (choose network reset in settings).
- Check for strong electromagnetic interference near the TV (microwave ovens, cordless phones). Try moving the router closer to the TV.
- If the TV supports wired Ethernet, connect via cable to test — if wired works but WiFi does not, the issue is isolated to the WiFi module.