The Dell laptop hinges are components that allow your LCD screen to tilt forward and backward.  On the tablet series of notebooks, they allow the screen to rotate a full 360 degrees.  Whichever the case may be, when you begin to notice your screen not being held up properly it is a sure sign that your LCD hinges are loose.  When this occurs you will need to have them replaced in order to restore the screen back to its original firmness and tightness.  Replacing dell laptop hinges can be a difficult or easy task.  It really depends on the type of hinges you are replacing, because they come in several versions.  It is important to locate the proper set of hinges; this can be done by matching the part number.  If you removed the hinges and do not see a part number on them, you can refer to the LCD cover part number.   The LCD cover part number is imprinted on a bar-coded label behind the LCD screen.  It usually begins with D/PN….or CN…….  It is also highly recommended to purchase original Dell hinges so that you don’t encounter issues with compatibility.  If you require assistance or have questions we have agents on staff that are able to answer all of your questions.