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Samsung Galaxy Tab 3 Lite 7.0 (samsung-goyawifi)

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Revision as of 11:20, 25 October 2021 by TriDiscord (talk | contribs) (Fix branding in portions and add screen density in DPI)
Samsung Galaxy Tab 3 Lite 7.0
Samsung Galaxy Tab 3 Lite 7.0
Samsung Galaxy Tab 3 Lite 7.0
Manufacturer Samsung
Name Galaxy Tab 3 Lite 7.0
Codename samsung-goyawifi
Released 2014
Hardware
Chipset Marvell PXA986
CPU Dual-core 1.2 GHz Cortex-A9
GPU Vivante GC1000
Display 1024×600 TFT, ~170 PPI (MDPI)
Storage 8GB
Memory 1GB
Architecture armv7
Software
Original software Android 4.2.2 on Linux 3.4.5
postmarketOS
Category testing
Pre-built images no
Features
Flashing
Partial
USB Networking
Partial
Internal storage
No data
SD card
No data
Battery
No data
Screen
Partial
Touchscreen
No data
Multimedia
3D Acceleration
No data
Audio
No data
Camera
No data
Camera Flash
No data
Connectivity
WiFi
No data
Bluetooth
No data
GPS
No data
NFC
No data
Modem
Calls
No data
SMS
No data
Mobile data
No data
Miscellaneous
FDE
No data
USB OTG
No data
HDMI/DP
No data
Sensors
Accelerometer
No data
Magnetometer
No data
Ambient Light
No data
Proximity
No data
Hall Effect
No data
Haptics
No data
Barometer
No data


Contributors

  • Cheadrian

Progress

  • Device boot the initramfs and get the debug-shell active
  • telnet is usable
  • pmOS_init.log looks clear
  • After pmos_continue_boot device stuck at loading state
  • Can't get SSH to work
  • No log is written in /var/log/rc.log

How to

  • Unpack the stock boot image with unmkbootimg
  • Delete the old initramfs.cpio.gz
  • Copy initramfs from pmOS build and rename it to initramfs.cpio.gz
  • Repack using mkbootimg as described by unmkbootimg

Related work

Can compile the kernel using https://github.com/pazos/android_kernel_samsung_goyawifi but doesn't boot, stuck at Samsung bootloader logo.

The output to UART using MicroUSB cable with 520Kohm, 619Kohm and 150Kohm between ID and GND pins doesn't give output after:

Uncompressing Linux... done, booting the kernel.

It seem to receive Tx data autoboot cancel, but still load everything, no result.

[    1.7639] Autoboot (1 seconds) in progress, press promised key to stop .