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我有一个USB2ANY的盒子,需要升级固件,但是升级到2_7后,接入电脑后灯不亮

Other Parts Discussed in Thread: USB2ANY

降级到1_8的话,插入电脑,提示我至少需要2_5

官网上只有最新的固件2_7 , 

是否可以下载到版本号为 2_5 的固件?