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Welcome to the HikariBook Wiki!

Tech Specs:

• 2 in 1 design with a full 360-degree hinge

• Qualcomm 8cx processor, ARM64 architecture, 4 large core + 4 small core design, supports hardware virtualization but is disabled by firmware

• LPDDR4 memory, supports the highest frequency 1866MHz, working frequency 1353MHz

• UFS Variant 128gb UFS2.1 (extra 128gb UFS2.1 and 256gb NVME not currently accessible)

• NVME Variant 512GB NVME (No extra drives)

• LTE, WIFI6, 802.11b/g/n/ac/ad, GPS

• 1080p resolution LCD screen, support automatic brightness, gravity sensor

• Touch screen, support surface 3 generation and above stylus

• Two USB3.1 Gen2 Type-C ports (Supports two external Display port monitors (Advertised as both at 4K))

• Headphone/Microphone combo port,

• Fingerprint Sensor (Not working)

• Windows Hello Facial recognition

• Micro SD Card and nano-sim combo

• Esim Support

• Support QC3.0/PD fast charge, 3.3V~16.5V input, maximum current 5A, maximum power 45W (the chip supports this, but the software currently gets to 27W's)

Chip names:

• CPU model: sc8180x

• RAM: h9hcnnndbmal

• Charging chip: SMB2351*2

• WIFI: WCN3998

• WiGiG: QCA6431

• TPM: Nuvoton NPCT750A

• NFC: NQ3304 (NXP NPC300)

• Audio Codec: WCD9341

• Audio Amp: WSA8815*2 (One for each speaker)

• EC: it8995vg

• Hall Sensor: YB8251ST23

• Light Sensor: CM32181E

• Compass: AK09917D*2

• Gryro/Accel: ST LSM6DSOQ*2

• Sar Sensor: SX9311*2

Linux operating system support

Currently, common bootloaders can be booted normally, but the whole machine freezes immediately after the Linux kernel is loaded, except for EFI STUB related content on the screen there is no output. The problem of boot stuck has been solved. You can boot and start linux normally , and you can also run the graphical interface The serial port is required to obtain detailed logs to determine the cause of the problem. By modifying the startup parameters and compiling the kernel by yourself , Linux was successfully started , but due to driver problems, no input (including otg external keyboard and mouse) By modifying the kernel source, a high pass snapdragon 845 of the USB driver can make close screens Type-C port work. At present, Linux support is out of the completely useless stage, and you can consider adapting the distribution.

General Info

• The debug serial port is located on the socket in the center top on the rear of the laptop. The pin marked 1 on the circuit board is the input, and the pin closest to this pin is the output. The default baud rate is 115200

• The rear camera is not factory-calibrated, and the color is problematic

• The missing storage chips on the UFS partition are not being provided power

• Fingerprint Sensor does not work

• Auto brightness from the Light sensor does not work

• Some units have a bad connection between the Heat sink and the CPU. So if you plan on heavy use it is recommended to add silicone grease.

• There is a design problem with the sim slot, which causes a thicker SIM card to be easily stuck inside.

• Due to unknown reasons (most likely due to the driver), there is a conflict between the Sdcard card and the camera (front sensor group) on some devices.

• The TPM windows driver is unsigned requiring windows to be run in test mode at all times.

• Due to driver issues, our graphics card can only support DirectX9, 10, 11, and there is no complete DX12 support

• OTG on the USB-C ports does not work outside of BSD Menu

• XBL is double signed attempts to edit it cause a full brick requiring a UFS programmer to be used.

• OpenGL is not supported until DirectX12 works