HP PAVILION DV4-1551SX
HP pavilion dv4-1220tx
HP Pavilion dv4-1216tu
HP Pavilion dv4-1306tu
HP Pavilion DV4-1322US
HP Pavilion dv4-1254tx
HP pavilion dv4-1055tx
HP Pavilion dv4-1130br
HP pavilion dv4-1047tx
HP Pavilion dv4-1125nr
HP PAVILION DV4-1547SB
HP Pavilion dv4-1329tx
HP pavilion dv4-1136tx
HP Pavilion dv4-1407tu
HP pavilion dv4-1169tx
HP Pavilion dv4-1312tu
HP Pavilion dv4-1403tx
HP pavilion dv4-1439tx
HP pavilion dv4-1149tx
HP Pavilion dv4-1120us
1.Turn off your HP Pavilion dv4-1221tx laptop, disconnect the AC power cord and remove the battery cover and remove the battery.
2.Turn a laptop, from the bottom of the laptop disassembly screws, refer to your laptop's user manual position, and set them aside.
3.Remove the external components, including memory modules, wireless LAN and modem
4.Remove the keyboard assembly of all the screws, gently lift the keyboard assembly from the bottom, remove the keyboard. Unplug all cables and various internal components.
5.Disconnect any wires to the HP Pavilion dv4-1221tx motherboard. Unplug any cards, such as the video card, not directly built into the motherboard. You will have the opportunity to remove the motherboard screws, disconnect the cable to the power strip.
6.Remove the CPU, the CPU into a new HP Pavilion dv4-1221tx motherboard, re-assemble parts in reverse order.