最近有很多热心网友都十分关心苹果5s为什么下载不了微信，请问苹果5s二维码为什么扫不出来？这个问题。还有一部分人想了解苹果5s为什么下载不了微信。对此，绿润百科小编「过客。」收集了相关的教程，希望能给你带来帮助。

1、光线不足。摄像头无法捕捉清晰的二维码，可以通过开启闪光灯、增加其它光源等办法来解决。

2、光线过强。有反光的现象，导致二维码无法识别，二维码在取景框中不能过亮。

3、二维码不清晰或被弄脏。二维码一般只有两种颜色，有其它杂色或者污垢，都会导致二维码识别率降低。

4、摄像头有灰尘。因为空气环境，摄像头很容易沾上厚厚的灰尘，这种情况也会导致摄像头无法捕捉清晰的图像。

5、网络信号差。绝大部分二维码扫描软件均需要连接网络，如果信号不佳，可能会导致扫描失败。

【英文介绍/For English】：

1. Lack of light. The camera cannot capture a clear QR code, which can be solved by turning on the flash or adding other light sources.

2. The light is too strong. There is a phenomenon of reflection, which makes the QR code unrecognizable, and the QR code should not be too bright in the viewfinder.

3. The QR code is unclear or dirty. QR codes generally have only two colors, and other variegated colors or dirt will reduce the recognition rate of QR codes.

4. The camera is dusty. Because of the air environment, the camera is easily covered with thick dust, which will also cause the camera to fail to capture clear images.

5. The network signal is poor. Most of the QR code scanning software needs to be connected to the network. If the signal is not good, the scanning may fail.

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