【Specification】This keyboard is without frame and backlit!
【Compatible Models】Compatible with HP Probook 4330S 4331S 4430S 4431S 4435S 4436S Series Laptop.
【Compatible Part Number】638179-DJ1 6037B0059601 SG-45800-X2A SG-45801-XUA 638179-B31 638179-001 6037B0056601 646300-001 9Z.N6MSV.001 MP-10M13US-930
【Solution of keys don't work】If some keys don't work after install ,You can try to reconnect the ribbon cable in case bad connected ,pls use a dry cloth to wipe metal head of the connect ribbon,then try to connect about few times,many customer solve this problem after did this.

Please confirm your mainboard have backlit function ,if not ,please check asin B01M74TH86 for the A1278 keyboard without backlit .

You can press "Ctrl+F" then fill in your laptop model in blank to confirm whether this keyboard fits your laptop or not easily.

*Frame : Yes
*Backlit : No
*Color : Black
*Letter : English
*Layout : US Layout
*Status : New Original
*Remark : Ribbon cable included

Compatible Models:
Compatible with HP ProBook 4530S 4535S 4730S 4735S Series

Compatible part numbers:
646300-001 638179-001 638179-031 NSK-CC0SV 6037B0059601 6037B0059603 9Z.N6MSV.001 9Z.N6MSV.00U MP-10M13US-930

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