?After-Sales Guarantee?: We offer a 3-month warranty, a 30-day money-back guarantee and lifetime after-sales support service. ?How to use?:Laptop monitor broken or damaged? Using a screwdriver (not included in the package), you can replace a broken LCD monitor with a new replacement screen at home in 15 minutes or less, even if you are not a technician. ?Replace and Recyclee?: If your monitor is the only part that is damaged and the rest of your laptop is still working, it is best to replace only the LCD panel. You will reduce waste in the environment and save money on expensive repair services or the purchase of a new computer. ?100% Compatiblee?: Before ordering a new laptop, please check your laptop model number and LCD part number. Having the correct model number, resolution will ensure that the new computer screen will work with your computer and will not cause problems after installation. ?Package Contents?: What's in the box? for Dell Inspiron 15 3510 3511 3502 3505 5594 7501 Series LCD screen replacement, this laptop screen replacement has a resolution of 1920x1080, he is a inch,EDP:30pin.