查看了很多方法都无法解决。幸运的是文件都可以拷贝出来，就是无法写入和格式化。难道只有走售后或报废路了吗？
写保护的话貌似没有什么工具能恢复的，我之前有个SDCZ50的U盘也是写保护了，我打电话给客服，客服说可以给换个U盘，而且还说要申请个什么售后服务编码。总之先问问客服吧
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