short review : Great ! long review : my two year old son rip 2 key off of my wife 's cq50-115nr , no big deal , then a few week later I leave the computer out and do not notice when he rip off about 15 more key . argh ! this be a life saver , because my wife be ANE-GREE . two word . I find this and ship it overnight -lrb- at 1 pm PST , thank God for Amazon Prime and product fulfil by Amazon ! -rrb- , fix it yesterday when it come in . I have assemble the odd computer from part before , so I know a little , but man , I could have probably do this blindfold . great instruction in the other review . I will recap what I do below . I take out the battery , and indeed there be 3 screw with a little braille-like keyboard symbol that match the hole on the replacement keyboard . Unscrewed those , turn over . the upper part of the keyboard lift up , only go a couple of inch , then you slide it gently towards the screen to release it from the lower pivot point . the keyboard be still attach by the ribbon cable . you use a small straight screwdriver -lrb- or a single tine from a fork if you be desperate -rrb- to push the white lever thing towards the screen allow the ribbon cable to easily slide out . do not force the ribbon cable , if it stick then you do not unlock the white thing on both side . there should be no force involve in remove or attach the cable , only slight force when lock or unlock the white lever . I insert the cable and push the white lever back down away from the screen lock the ribbon cable in , drop the keyboard in . I do push the keyboard down when screw it back in as the screw be small and would not catch . I replace the battery , turn on , and all they key work great . Wifey be very , very pleased , which please I , and I be now out of the dog house . one possible criticism , another person be say the key pop off , view from the side the key do appear slightly higher than before and be not quite flush with the computer , if it happen I 'll try to update my review . I be retain the remains of the previous keyboard for spare part in case this do happen -lrb- hopefully they fit -rrb- . now there be maybe a dozen keyboard available on Amazon , most probably cheaper than this one . why do I choose this one . because of the review ! this one fit precisely , look and feel OEM to I . I can only imagine how badly my wife would have react if I have get a cheapo one that do not fit . if it be my computer , I might have go with a cheapo one and take my chance , but my wife deserve the best . Worth every penny !