7. Reverse the steps to reassemble the laptop. Once you have reassembled your HP ProBook 4510, replace the Toshiba laptop battery, reconnect the AC adapter, and power up the laptop. You can test that the keyboard is functioning properly by press a random selection of keys. If all is well, you have successfully replaced your laptop keyboard. If you encounter problems, we do offer a mail-in laptop repair service with very competitive rates. 4. You will now see two screws that hold the keyboard in place (three screws for 14-inch models). 2. Close the laptop and put it face down, then remove the seven screws located in the Toshiba laptop battery compartment, then two screws on the back of the laptop near the hinges for the lid. 14-inch models only have four screws in the Toshiba laptop battery compartment. 3. Open the laptop and put the screen back as far as possible. Slide the plastic switch cover above the keyboard back toward the screen and remove it. 6. Connect the new keyboard to the mainboard connector, and then slide it into place. Replace the screws holding the keyboard into place. 5. Slide the keyboard back toward the screen slightly, and then flip it forward to access the ribbon cable connecting it to the mainboard. Gently disconnect the ribbon cable’s connector from the mainboard and remove the keyboard. HP keyboards tend to be very durable and reliable, but on the rare occasion that the keyboard on your HP ProBook 4510 has broken keys or is operating erratically, you will be glad to know that replacing it is a fairly simple repair. The first thing you will need is a replacement part. Visit Spareparts Warehouse and click on the laptop keyboards section to find a replacement HP keyboard that is compatible with your specific model, and then follow the steps below. 1. For safety, it is important to power down the laptop and disconnect all cables, including the power cable, and remove the Toshiba laptop battery before beginning any repair. Remove the Toshiba laptop battery by sliding the release catches and pull the Toshiba laptop battery away from the laptop.