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you might have applied myhack's mbr fix...this also causes the error.. Anyway restart myhack again and this time dont use myhack's mbr fix instead try 3rd party mbr patch thats what i did ....Hope it helps PS this worked on mine.. not sure if it will on yours just try and reply

Thanks for speedy reply...as i donthave ethernet so i have to boot to windows ..i will try voodohda(mine is intel HD audio-some say patching dsdt would solve it) + i will also search for ethernet kext but how do i patch my dsdt for sleep/wake/brightness/other dsdt feature and also i have to always boot my mavericks with chameleon usb (i have a dual boot mavericks and windows 8.1)it always boots to windows 8.1 no selecting option + while booting i show boot0:done and boots windows 8.1 PS if you can(only if u want to) help me please edit my dsdt i have uploaded my dsdt at top of this post...Please i am noob at patching.. PPS:my audio is working now with voodooHDA 2.8.4 thanks

Hi man i have successfully installed mavericks but the sound,brightness,wired ethernet + sleep wake is not working also my wifi card is not supported i am plannning to replace my card with 1/2-size DW1510. thanks

THanks i will give it shot...btw what do i do with the dsdt how do i patch thiss(just an extra info) ,is dsdt patching essential for my laptop??? and how to add my dsdt in usb chamelon....

NOTE:Modetor/Admin feel free to move this post if it is on wrong place.Thanks Hello everyone,i am trying to install mavericks on my dell 3521 but so far no success at all.i have searched many places for the guide but no good results.so can any of you who have the same laptop as mine please help... someone said i needed the patched dsdt and ssdt but i am complete noob i tried but failed on virtualbox.please help me how to install + need to change my wiif card any cheap card suggestions. OVERVIEW Series Inspiron 15 Model Number 3521 PROCESSOR Processor Name Core i3 (3rd Generation) Variant 3217U Chipset Mobile HM76 Express Clock Speed 1.8 Ghz Cache Memory 3 MB DISPLAY Screen Size 15.6 inch Resolution 1366 x 768 Pixel Screen Type HD LED Display with True Life STORAGE Hard Disk Capacity 500 GB Hardware Interface SATA RPM 5400 MEMORY RAM 4 GB DDR3 Expandable Memory Upto 8 GB Memory Slots 2 (Unused Slot - 0) GRAPHICS Graphic Processor Intel HD Graphics 4000 hoping to get help from the biggest hackintosh community PS:i have dsdt.dsl + dsdt.aml in attachment which i got from ubuntu following a guide...what do i do with this???? thanks in ad. DSDT.zip