方法很简单,在拨号面板输入“*#0011#”,进入“服务模式(ServiceMode)”,按一下左侧虚拟按键,选择WiFi,然后关闭“WiFi省电模式(WiFi Power Save Mode)”。本人的Galaxy Note II在关闭省电模式后立马连上了,运气不错。
Samsung Galaxy S3 WiFi Problem Fix
Note: Also works on most of Galaxy Note II.1. Open up the Galaxy S3 phone dialer
2. Then dial *#0011#
3. Look for the “ServiceMode” screen and press the left menu button
4. Select “WiFi”
5. You should see that the “WiFi Power Save Mode” button is “ON” – now put it on “OFF”
6. Your done! Just exit the menu, switch off your WiFi, then switch it back on again. If your router details are saved and automatically connects, get your Galaxy S3 to forget or delete the network information. Then reconnect, putting in all the required information.
For more details click -> http://galaxys3reviews.net/samsung-galaxy-s3-wifi-problem-fix
UPDATE: FT! It won't work any more. No solution to solve this annoying problem even in XDA.
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