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great all is ok thanks...

now i am trying your tutorial battery status is come back working fine but my intel 4000 graphics is gone Intel HD Graphics 4000 3 MB show me this please help me how i fix this regards

Hi Dear All i have on issue on my laptop 4540s all is working fine wifi bluetooth sound graphics card all is working fine but just one have i have it laptop battery did not show charge on task bar please help me for installing battery driver's here am attachment my status of my task bar battery...

anybody help me about this issue ? please all expert see this threat and help me .....

now i am changes on my movericks 10.9.5 and reboot my system then my system going to crash here is my config just app store not working please correct me where i am setup lots of trying but i am fail ..... please help me .....

can i use these setting on my laptop 4540s if yes then where i am finding this file com.boot.apple ? Added this to my com.boot.apple file: <key>EthernetBuiltIn</key> <string>Yes</string> <key>PCIRootUID</key> <string>0</string>

witch step i will follow and fix my problem ....

where is this file com.boot.apple ?

i have same problem but no one have perfect solution

Hi Dear all expert on here please help me i am trying to install movericks 10.9 on my laptop pro book 4540s and its working very fine everything but one problem am going to play any video mx player and vlc player only sound is working picture is not showing on player then i am trying to update...

how can i do this i mean how can i fix this issue please help me

dear all expert i am done my job follow your steps and my result is attach please see the issue how can i fix this desktop 4 desktop showing on my pc prebook 4540s please help me i am waiting for your reply how can i fix this ... regards

dear all expert i am done my job follow your steps and my result is attach please see the issue how can i fix this desktop 4 desktop showing on my pc prebook 4540s please help me i am waiting for your reply how can i fix this ... regards

hi everyone expert i have one problem am creating movericks Mac os x on bootable usb then now i am going to boot from usb little bit process then still stop and system hung please tell me probook 4540s bios setting then i am setup my bois please all expert help me for this regards i need...