Nexus 6（Android 7.1.1）无法搜索任何WiFi网络求助

Hey there, let’s work through this WiFi issue on your Nexus 6 step by step—we’ll avoid a factory reset as long as possible. Since you mentioned toggling flight mode before the problem started, let’s start with quick, low-impact fixes:

Quick Resets to Refresh Network State #

• Re-trigger Flight Mode properly: Pull down the notification shade, long-press the Flight Mode icon to open its settings. Enable flight mode, wait a full minute, then disable it. Give your phone 30 seconds to reinitialize network hardware—sometimes a half-hearted toggle leaves the WiFi module in a stuck state.
• Reset Network Settings (no data loss): This clears saved WiFi passwords, Bluetooth pairings, and mobile network configs, but won’t touch your apps or files. Go to Settings > System > Reset > Reset Network Settings, confirm, and let the phone restart. After reboot, manually search for WiFi networks.

Dig Into System & App Troubleshooting #

• Check WiFi Hardware Status via Hidden Menu: Open your phone’s dialer and enter *#*#4636#*#* to access the Testing menu. Tap "WiFi Info" and verify if "WiFi Status" shows "Enabled". If it’s disabled, toggle it on. Also check the "WiFi Scan Results" section—if this is empty too, we’ll move to deeper fixes.
• Clear WiFi Service Cache & Data: System apps can glitch too. Go to Settings > Apps > App Manager, tap the three-dot menu in the top-right, select "Show System Apps". Find "WiFi Service" (might be labeled "WLAN Service"), tap into it, go to Storage > Clear Cache and Clear Data. Restart your phone and test WiFi again.
• Boot into Safe Mode to Rule Out Third-Party Apps: Long-press the Power button, then long-press "Restart" until you see the "Enter Safe Mode" prompt. Confirm and wait for the phone to boot. In Safe Mode, only pre-installed system apps run. If WiFi works here, a recently installed app is causing the conflict—uninstall apps one by one (starting with the most recent) until you find the culprit.

Last Software Checks (Before Hardware Consideration) #

• Check for System Updates: Even though Nexus 6’s official support ended, there might be a lingering OTA patch you haven’t installed. Go to Settings > System > System Update to check. If an update is available, install it and re-test WiFi.

If none of these steps resolve the issue, it’s possible there’s a hardware problem (like a loose WiFi module or component failure). In that case, you might need to get the device inspected by a repair technician.

内容的提问来源于stack exchange，提问作者theblitz