Hp probook 4420s laptop motherboard self repair Tags: Hewlett Packard Motherboards Laptops Kirupa October 10, 2012 4:03:51 PM The DC jack is not directly soldered to MB, but to a connector which soldered to MB. I reflowed the solder joints, still my MB does not power up, only the power LED blinks once when I insert the power adaptor to DC jack. Is there anyone can help me how to check further, Please? Any help would be greatly appreciated. Kirupa. More about : probook 4420s laptop motherboard repair Can't find your answer ? Ask ! Publish Related resources: ForumHELP : Repairing my HP Probook 4510s ForumLaptop and Notebook Disassembly and Hardware Repair Guide ForumWorth trying to repair this laptop ? ForumCrashed MB, repair won\'t work on new MB, can\'t Sysprep. VM solution? ForumWindows 7 runs in safe mode, freezes in Normal ForumHP or Asus which should i get? ForumHow to repair toshiba a205 with freezing when plug in adapter ForumStartup Issue. Gives "bad or missing command" with repair cd ForumHP Laptop won't start after 3 beeps Forum"Business Class" xpost (wasn't sure where to post this) ForumLaptop Build Quality ForumNew computer repair business with a few spots missing ForumHP DV8T 1000 - Keeps on shutting down and restarting at startup! ForumIs there a universal li ion battery charger of some kind? ForumHP DV9000 unique issues ForumHP DV9000 Series(dv9208nr), Known Issues - Anyone know the fix? ForumHP zv5160us laptop apparent bad BIOS update ForumGaming laptop under 1000 More resources Read discussions in other Laptops & Notebooks categories Battery Acer Asus Dell Hewlett Packard iPad Toshiba Vaio !