Samsung Galaxy Note II (samsung-t03g)

From postmarketOS
Jump to navigation Jump to search
Samsung Galaxy Note II
Samsung Galaxy Note II running Phosh
Samsung Galaxy Note II running Phosh
Manufacturer Samsung
Name Galaxy Note II
Codename samsung-t03g
Released 2012
Category testing
Original software Android 4.1.1 on Linux 3.0.31
postmarketOS kernel 6.0.2
Hardware
Chipset Samsung Exynos 4412 Quad
CPU Quad-core 1.6 GHz Cortex-A9
GPU Mali-400 MP4
Display 720x1280 AMOLED
Storage 16/32/64 GB
Memory 2 GB
Architecture armv7
Unixbench Whet/Dhry score 302 (single)
/ 890 (multithreaded)
Features
USB Networking
Works
Flashing
Works
Touchscreen
Works
Display
Works
WiFi
Works
FDE
Works
Mainline
Works
Battery
Works
3D Acceleration
Works
Audio
Partial
Bluetooth
Partial
Camera
GPS
Broken
Mobile data
Broken
SMS
Broken
Calls
Broken
USB OTG
Broken
NFC
Sensors
Accelerometer
Magnetometer
Ambient Light
Proximity
Hall Effect
Unavailable
Barometer
Power Sensor
Unavailable
Misc
Keyboard
Unavailable
Touchpad
Unavailable
USB-A
Unavailable
HDMI/DP
Partial
Ir TX
Unavailable
TrustZone
FOSS bootloader
Partial
U-Boot
Primary Bootloader
Works
Secondary Bootloader
Works
Mainline
Unavailable
Internal Storage
Works
SD card
Works
USB Host
USB Peripheral
Works
Display
Works
Keyboard
Unavailable
Buttons
Works



Contributors

Users owning this device


Information

Code name of the device is Midas.

For the LTE variant, see this page.

See the Samsung Galaxy S III page for more information.

How to enter flash mode

Hold Power + Volume Down + Home. When prompted, release all buttons and click Volume Up.

How to enter recovery mode

Hold Power + Volume Up + Home. When the Samsung logo appears, release all buttons.

Installation

System Image

You can install the system to an SD card or make a recovery zip (probably won't fit in the partition size).

Note Be warned, the SD card will be formatted.

To install the system image to an SD card, use:

$ pmbootstrap install --sdcard=/dev/mmcblk

Kernel Image

Boot into flash mode and then flash the kernel:

$ pmbootstrap flasher flash_kernel

If you have done everything correctly, your Note II should reboot and you should see the Samsung logo. All that remains is to wait for the pmOS splash to appear.

U-Boot

According to this blog, there is a working U-Boot port for the Midas devices. Build it from this repository.

Installation

This manual describes the installation on the SD card as a secondary bootloader.

Clone the repository:

$ git clone https://github.com/fourkbomb/u-boot
$ cd u-boot

Optionally, apply patches made by ave4:

$ git am 000*

Set up the toolchain:

$ export ARCH=arm
$ export CROSS_COMPILE=arm-none-eabi-

Build U-Boot:

$ make midas_defconfig && make -jN
$ ./create_4412_sd_image.sh u-boot.image

Install pmOS the usual way to the SD card and then flash U-Boot on top of it:

$ dd if=u-boot.image of=/dev/mmcblkN bs=512 skip=1 seek=1

Display

Note II has two variants of the display panel. To find out which panel yours has, run dmesg | grep 'panel driver' in TWRP or in a rooted Android shell (immediately after booting, otherwise the logs will have time to rotate and you won't see this message). Output should be similar to:

<6>[    3.177303] lcd panel: ea8061 lcd panel driver has been probed.

In this example, ea8061 is the panel type. Other variants use the s6evr02 panel.

Partitions

Note This will vary between devices.
$ sudo parted /dev/mmcblk2 print
Model: MMC VTU00M (sd/mmc)
Disk /dev/mmcblk2: 15.8GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
1 4194kB 8389kB 4194kB BOTA0 msftdata
2 8389kB 12.6MB 4194kB BOTA1 msftdata
3 12.6MB 33.6MB 21.0MB ext4 EFS msftdata
4 33.6MB 37.7MB 4194kB m9kefs1 msftdata
5 37.7MB 41.9MB 4194kB m9kefs2 msftdata
6 41.9MB 46.1MB 4194kB m9kefs3 msftdata
7 46.1MB 54.5MB 8389kB PARAM msftdata
8 54.5MB 62.9MB 8389kB BOOT msftdata
9 62.9MB 71.3MB 8389kB RECOVERY msftdata
10 71.3MB 164MB 92.3MB RADIO msftdata
11 164MB 168MB 4194kB TOMBSTONES msftdata
12 168MB 1602MB 1434MB ext4 CACHE msftdata
13 1602MB 3750MB 2147MB ext4 SYSTEM msftdata
14 3750MB 4337MB 587MB ext4 HIDDEN msftdata
15 4337MB 4345MB 8389kB OTA msftdata
16 4345MB 15.8GB 11.4GB ext4 USERDATA msftdata

TWRP

Note Only if you still have Android installed. Make sure to boot into recovery mode at least once after flashing it, otherwise it will be overwritten by the default recovery.

Using Heimdall:

$ heimdall flash --RECOVERY TWRP.img --no-reboot

Downstream

S Pen

To get the S Pen working, you may need to do the following:

  • Put the following lines to /etc/udev/hwdb.d/60-evdev.hwdb:
evdev:name:*e-pen*
EVDEV_ABS_00=::300
EVDEV_ABS_01=::300
  • Possibly update the hwdb:
$ sudo udevadm hwdb --update
  • Restart the phone.

Gallery

Recommendations

Issues

  • Currently, only S6EVR02 panel is available in the kernel package.
  • The panel S6EVR02 is currently disabled. Expected to be enabled in the near future.
    • Solution: Enable CONFIG_DRM_PANEL_SAMSUNG_S6EVR02 in the config file.
  • The display brightness is too high when the display turns on.
    • Solution: Change the brightness so it changes to the correct value.
  • The sound output is distorted.
    • Note: It seems to be based on the cpu load.
  • Headphone jack doesn't seem to work.
  • USB OTG currently doesn't seem to work.
    • Note: USB itself seems to work just fine. Note II is detected as "Netchip Technology, Inc. Linux-USB Ethernet/RNDIS Gadget" with lsusb command. Able to connect via SSH after adding required rule to nftables.
    • Note: External power to the USB device doesn't help.

See also