计算器屏幕上显示“OS ERROR”,“Please update OS.”,现在怎么办?刷2.0替换“UpdateCode.bin”文件,都能看到进度条,到第三个进度条就不动了,不替换“UpdateCode.bin”文件,无进度条出现,再等待就出现“Update failed”或者“Your calculator is a model that it not supported”,刷1.05无进度条出现,一直等待会出现“Update failed”或者“Your calculator is a model that it not supported”,求助啊,大大们!