After I posted this complaint on 12th June, my system got off and was not turning on the next day. Today is 20 June and they have acted promptly to replace the motherboard and touchpad. The SD card reader and USB port are also working fine now. Hope everything will be better now. Dell customer service is good and efficient! Thank you.
 1) Within one month of buying 16plus, the hinge of the monitor broke suddenly. They replaced it with another system but took over a month for the replacement. Work was hampered. 2) After using that replaced system for one month, the touchpad started malfunctioning, cursor didn't move, or kept shaking, dancing. All my works got hampered. Drivers were updated. Touchpad was replaced. Then it started working fine. 3) Memory card reader was not working from the beginning. Installed the driver but didn't work. Factory system reset was done but didn't work. So they replaced the card reader along with the usb port next to it. Now both don't work. Work got hampered again due to all data transfer and factory reset.  4) Now after 3-4months of touchpad replacement, again the new touchpad is showing the same old problem. I am in a very serious stage of work, but now my newly purchased laptop has a faulty touchpad, a non-functional memory card reader and usb port.  Dell customer service is good and always helped me in all the problems. But now as technician also can't solve these issues, please refund. I regret this purchase heavily and want to return this system. Dell please understand and take this system and give me the refund or a different model. It seems this model has many defects. My work has been hampered.
Dell Inspiron 16plus issues