Internal layout

Main chips

  • RK3399 system-on-chip (1)

  • LPDDR4 SDRAM (21)

  • SPI NOR flash memory (29)

  • eMMC flash memory module (26; Note: Some datasheets indicate a low supported number of mating cycles.)

  • WiFi/BT module (27)

Mainboard Switches and Buttons

There are two switches on the main board: disabling the eMMC module (24), and enabling serial console UART (9) via headphone jack.

The Reset and Recovery buttons (28): the reset button performs an immediate reset of the laptop. The Recovery button is used to place the device in maskrom mode. This mode allows flashing eMMC using Rockchip tools (e.g. rkflashtools).

PBPL S

Key Internal Parts

+ Numbered parts classification and description

Number

Type

Descriptor

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1

Component

RK3399 System-On-Chip

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2

Socket

PCIe x4 slot for optional NVMe adapter

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3

Socket

Speakers socket

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4

Socket

Touchpad socket

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5

Component

Left speaker

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6

Connector

Power bridge connector

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7

Socket

Keyboard Socket

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8

Component

Optional NVMe SSD adapter

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9

Switch

UART/Audio switch - enables serial console UART via headphone jack

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10

Socket

Power bridge socket

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11

Socket

Battery socket

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12

Component

Touchpad

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13

Component

Battery

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14

Component

Right speaker

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15

Socket

MicroSD card slot

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16

Socket

Headphone / serial console UART jack

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17

Socket

USB 2.0 Type A

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18

Socket

Daughterboard-to-mainboard ribbon cable socket

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19

Cable

Daughterboard-to-mainboard ribbon cable

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20

Component

microphone

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21

Component

LPDDR4 RAM

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22

Socket

Mainboard-to-daughterboard ribbon cable socket

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23

Socket

Microphone socket

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24

Switch

Switch to hardware disable eMMC

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25

Antenna

BT/WiFI antenna

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26

Component

eMMC flash memory module

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27

Component

BT/WiFi module chip

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28

Buttons

Reset and recovery buttons

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29

Component

SPI flash storage

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30

Socket

eDP LCD socket

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31

Socket

Power in barrel socket

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32

Socket

USB 3.0 Type A

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33

Socket

USB 3.0 Type C