Pantech SKY VEGA S5 (pantech-ef44)

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Pantech SKY VEGA S5
Pantech SKY VEGA S5
Pantech SKY VEGA S5
Manufacturer Pantech
Name SKY VEGA S5
Codename pantech-ef44
Model IM-A840
Released 2012
Category testing
Pre-built images no
Original software Android
Original version 4.0.4
Extended version 4.1.2
Hardware
Chipset Qualcomm Snapdragon S4 Plus (MSM8960)
CPU Qualcomm Krait MP2 1.5GHz
GPU Qualcomm Adreno 225
Display 720x1280 IPS LED
Storage 16GB
Architecture ARMv7
Features
USB Networking
Flashing
Partial
Touchscreen
Display
Partial
WiFi
FDE
Mainline
Partial
Battery
3D Acceleration
Audio
Bluetooth
Camera
GPS
Mobile data
Internal storage
SMS
Calls
USB OTG
NFC
Sensors
Accelerometer
Magnetometer
Ambient Light
Proximity
Hall Effect
Barometer
Power Sensor
Misc
Built-in DVB
Camera Flash
Keyboard
Touchpad
USB-A
HDMI/DP
Ir TX
Ir RX
Stylus
Memory Card
Haptics
Ethernet
FOSS bootloader


Contributors

  • Hexagonwin

Users owning this device

How to enter system modes

  • For fastboot mode, hold both volume keys and power key until Pantech menu shows. Then, choose fastboot in the Pantech Menu.
  • For Recovery mode, hold volume up and power until bootloader's splash image is gone.

Installation

The downstream based port is not booting, and thus is not upstreamed. With the (close to) mainline kernel the device is booting, so it might get upstreamed later on. In the meantime, please manually compile the mainline kernel fork available on the bottom of the page. The pmOS installation can either be on the microSD card or the internal eMMC.


Problems

  • Vendor kernel (Linux 3.4.0) only compiles and boots with certain old toolchains, arm-eabi-4.4.3, arm-eabi-4.6, arm-eabi-4.7.
  • Not many users are available for the target, and less developers are availlable.
  • Hardware failures are common, including the touchscreen, speaker, battery, camera.

Mainline

  • With a dts, the phone can boot Linux 5.19-rc7 from peremen's tree.

The phone boots normally, and USB telnet is working fine in debug-shell. eMMC is being detected and the kernel boots with both lk2nd and stock fastboot. As the kernel image is bigger than the boot partition (10MB), it can only boot the kernel by loading it from fastboot.

Pictures

See also