Jump to content

Lenovo K4 Note (lenovo-k5fpr)

From postmarketOS Wiki
Lenovo K4 Note
Also known as: Lenovo K4 Note A7010a48, A7010, Lenovo Vibe X3 Lite, Lenovo K51c78
Also known as: Lenovo K4 Note A7010a48, A7010, Lenovo Vibe X3 Lite, Lenovo K51c78
Manufacturer Lenovo
Name K4 Note
Codename lenovo-k5fpr
Released 2016
Type handset
Hardware
Chipset Mediatek MT6753
CPU Octa-core 1.3 GHz Cortex-A53
GPU Mali-T720MP3
Display 1080 x 1920 IPS LCD, (~401 ppi density)
Storage 8GB/16GB/32GB
Memory 2GB/3GB
Architecture aarch64
Software
Original software Android
Original version
The version the device was shipped with.
5.1.1
Extended version
The most recent supported version from the manufacturer.
6.0
postmarketOS
Category downstream
Features
Flashing
It is possible to flash the device with pmbootstrap flasher.
Partial
USB Networking
After connecting the device with USB to your PC, you can connect to it via telnet (initramfs) or SSH (booted system).
Works
Battery
Charging and battery level reporting works
Untested
Screen
Display works. Ideally with sleep mode and brightness control.
Works
Touchscreen
Works
Multimedia
3D Acceleration
Untested
Audio
Audio playback, microphone, headset and buttons.
Untested
Camera
Untested
Connectivity
WiFi
Untested
Bluetooth
Untested
GPS
Untested
NFC
Near Field Communication
Untested
Modem
Calls
Untested
SMS
Untested
Mobile data
Untested
Miscellaneous
FDE
Full disk encryption and unlocking with unl0kr.
Untested
USB OTG
USB On-The-Go or USB-C Role switching
Untested
Sensors
Accelerometer
Auto screen rotation works in desktops e.g. Phosh or Plasma Mobile
Untested


Variants

  • A7010 - made for European market, has FM radio, supports LTE band 20
  • K51c78 - made for Chinese market, 16 GB of internal storage, supports LTE band 38

Contributors

Users owning this device

How to enter flash mode

  • adb reboot bootloader
  • fastboot oem unlock

Installation

pmbootstrap build --strict --force --arch aarch64 linux-lenovo-k5fpr device-lenovo-k5fpr && pmbootstrap install && pmbootstrap export

via pmbootstrap:

pmbootstrap flasher flash_kernel --flashes boot and hangs

pmbootstrap flasher flash_rootfs --not tested


via twrp

pmbootstrap export

adb push /tmp/postmarketOS-export/boot.img /sdcard/boot.img

adb push /tmp/postmarketOS-export/lenovo-a7010.img /sdcard/system.img

in twrp install -> .img -> boot.img -> boot ; install -> .img -> system.img -> system

UART

1. Remove the back cover held by 14 screws (it's easy to pry it with a nail from the left side of the battery).

2. There are 2 UART ports available above the main camera module.

3. Baudrates should be common for mediatek devices: 115200 and 921600 (depends on port).

See also