The popup camera of the phone does work as mechanically,because it does popup when ever selected front camera. But the issue is it does not generate any images or videos , and also hangs the devices. If we are taking it from the camera app , and when we choose the front cam ,it just pops up and shows a black screen. From then you cant get back to primary camera unless you go to settings>camera>clear cache. This is but when we take it with other thirdparty/video call applications it doesnt need to reset the camera app ,but results are same.