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牛啊友友，靠你这个方法解决了，我的是F1一直不亮，F2、3都变成静音功能...

Thinkpad的音量设置有问题。按F1，F2，F3都是静音，不能调节音量，而且就算开起来也没有声音，怎么解决 不知道怎么搞的电脑没声音了，而且按F1，F2，F3这三个键都是显示关闭或开启声音，本来F2，F3是可以调节音量的啊。还有F1上面的光点一直亮着F1静音键的灯关...

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技术文章

Upgrade Cisco 3560X IOS Take 30+ Minutes

hqy hqy 发表于2022-06-30 浏览1200 评论0

https://blog.csdn.net/netsec51sec/article/details/98956759

When working on IOS update for one standalone Cisco 3560x to meet our environment requirement, I was so surprising the total time for Cisco 3560x taking new IOS image, which was more than 30+ minutes. I was thinking to reset it during the process because it is way longer than other Cisco routers, switches and firewalls I updated before. Usually total IOS update takes less than 5 minutes from the beginning process of uploading ios to new ios fully loaded.