新买的open mv 连接不上IED，以前的板子就没问题，提示如下图。怎么才能连接上？

[mtu6]

# AprilTags Example
#
# This example shows the power of the OpenMV Cam to detect April Tags
# on the OpenMV Cam M7. The M4 versions cannot detect April Tags.

import sensor, image, time, math

sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QQVGA) # we run out of memory if the resolution is much bigger...
sensor.skip_frames(30)
sensor.set_auto_gain(False)  # must turn this off to prevent image washout...
sensor.set_auto_whitebal(False)  # must turn this off to prevent image washout...
clock = time.clock()

while(True):
    clock.tick()
    img = sensor.snapshot()
    for tag in img.find_apriltags(): # defaults to TAG36H11 without "families".
        img.draw_rectangle(tag.rect(), color = (255, 0, 0))
        img.draw_cross(tag.cx(), tag.cy(), color = (0, 255, 0))
        degress = 180 * tag.rotation() / math.pi
        print(tag.id(),degress)
![0_1594946155287_捕获.JPG](https://fcdn.singtown.com/b6213d95-8e92-4faa-9f9b-808cc9c54dd6.JPG) 

[kidswong999]

你看一下文件管理器里面，有没有OpenMV的磁盘？

[mtu6]

@kidswong999 有的，我怕卡会影响它所以我用的一个卡

[kidswong999]

你换一个电脑试一下，
如果不行就重新烧录固件试一下，https://singtown.com/learn/50661/
如果还不行就联系售后寄回维修。