Galaxy J7 Problems -
The first drawback of the device is the resolution of the display which is not a Full HD. And because of that the pixel density of the screen is of only 267 ppi ( pixels per inch) for a large 5.5 inch display.
Next Galaxy J7 problem is the over saturation quality of the 13 megapixel camera sensor. Now this over saturation issue is deliberately manipulated by Samsung to make the images more vibrant, but in real it is not producing the real images.
Another disadvantages with the smartphone is again with the camera but not with the still images but with the video quality. I mean it is one of the shakiest smartphone on the planet. I understand that OIS ( Optical Image Stabilization) is costly but at least Samsung could have made like how their other devices are handling hand shake.
The Galaxy J7 does not have a NFC ( Near Field Communication) which is a drawback when compared to other devices at the same price tag.
Another problems with the device is that it does not have a fast battery charging technology. It is required because the charging time is over 4 hours to fully charge the battery.
And finally the last but not the least Samsung Galaxy J7 issues and problems are the absence of temperature sensor, no HDMI and MHL support and no infrared sensor for wireless control of other electronics.