Samsung Galaxy Note II LTE (samsung-t0lte)

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Samsung Galaxy Note II LTE
Galaxy Note II
Galaxy Note II
Manufacturer Samsung
Name Galaxy Note II LTE
Codename samsung-t0lte
Released 2012
Category testing
Original software Android 4.1.1 on Linux 3.0.31
postmarketOS kernel 5.18.0
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
Features
USB Networking
Works
Flashing
Partial
Touchscreen
Works
Display
Works
WiFi
Works
FDE
Works
Mainline
Works
Battery
Works
3D Acceleration
Works
Audio
Partial
Bluetooth
Partial
Camera
GPS
Mobile data
SMS
Calls
USB OTG
NFC
Sensors
Accelerometer
Magnetometer
Ambient Light
Proximity
Hall Effect
Barometer
Power Sensor
Misc
Keyboard
Touchpad
USB-A
HDMI/DP
Ir TX
Unavailable
TrustZone
FOSS bootloader



Contributors

  • Jack_Kekzoz

Users owning this device


How to enter flash mode

When the phone is powered off, press and hold down the Home, Volume Down and Power buttons to turn it on in Download mode.

If you have installed a custom recovery, then when the phone is powered off, press and hold down the Home, Volume Up and Power buttons to turn it on in Recovery mode.

Installation

You can install postmarketOS either by flashing the rootfs to an sdcard, and then flashing the kernel using Heimdall when the phone is in Download mode, or you can install it via a recovery zip. It is not possible currently to flash rootfs in Download mode, as Heimdall has issues with flashing rootfs currently (see Heimdall). Please note that for the recovery installation, if you enable FDE, you need to ensure your custom recovery supports the cipher you are using.

Display

There is an issue with the display in that the brightness is too high when it turns on. Simply turning down the brightness, even a little, makes it jump to the correct setting.

FDE

FDE works, but for some reason, not with hardware acceleration.

Audio

Speaker and (main) mic work, but not headphone, as the kernel driver needs work to support that. In its current state the headphone audio is very crackly.

Bluetooth

Without the non-free firmware package, there may be some limited Bluetooth functionality [1]. If this occurs, it is probably because there is some code in the ROM of the BCM4334 chip. It is recommended to toggle Bluetooth off in this state, as the chip is designed to only work properly with the firmware patch, and unexpected issues may occur without it.

If you enable the non-free firmware package, then Bluetooth has partial functionality only:

- File sharing works (tested to and from a Motorola smartphone running stock Android 9)

- Keyboards work (though for some reason during pairing, the keyboard only became visible after it was paired with the smartphone.)

- Audio is NOT working properly, though that may be to do with a lack of configuration in Alsa UCM files.

- Internet sharing has not been tested.

In the long run, the Replicant project hopes to ask Cypress Semiconductor Corp. if they are willing to release the source code to the firmware under a permissive licence [2].

Touchkeys

The Back touchkey can be used for navigating back (mainly in Firefox, but also in other contexts). The Menu touchkey does nothing by default, but it can be assigned in the phosh settings.

If you wish, you can run this script in a terminal in the background to give you some haptic feedback and to illuminate the touchkey LEDs for 1 second when they are touched - you will need to install evtest beforehand though. It is a bit of a hack, so won't be bundled in postmarketOS by default:

#!/bin/sh

device='/dev/input/by-path/platform-i2c-gpio-4-event'
event_back='*code 158 (KEY_BACK), value 1*'
event_menu='*code 139 (KEY_MENU), value 1*'

evtest "$device" | while read line; do
  case $line in

    ($event_back)	fbcli -E button-pressed
    			echo 1 > /sys/class/leds/tm2-touchkey/brightness
			sleep 1
			echo 0 > /sys/class/leds/tm2-touchkey/brightness ;;

    ($event_menu)	fbcli -E button-pressed
    			echo 1 > /sys/class/leds/tm2-touchkey/brightness
			sleep 1
			echo 0 > /sys/class/leds/tm2-touchkey/brightness ;;

  esac
done

Hardware

Part Name Mainline kernel support Notes
GPU Mali-400 MP4 Y Driver
Panel Samsung S6EVR02 LCD panel N But there is a patch in pmaports
Touchscreen MMS152 Y Driver
WiFi BCM4334 Y brcmfmac driver. Requires nonfree firmwares.
Bluetooth BCM4334 Y Driver. Requires nonfree firmware.
GPS MDM9615
Modem MDM9615 P DTSI. This modem is also found in samsung-m3 (GT-i9305).
Fuel gauge MAX17047 Y Driver
MFD MAX77686 Y Driver
Audio codec WM1811 Y Midas-specific driver. This driver is thought to be an upstreamed version of samsung-m0's downstream driver. t0 driver needs upstreaming for full audio functionality. Main driver
Front Camera S5K6A3 Y Image sensor driver, Imaging subsystem driver. For some reason cameras don't work yet - needs investigating
Back Camera S5C73M3 Y Driver, SPI driver. For some reason cameras don't work yet - needs investigating
Flash LED & Vibrator (MFD) MAX77693 Y Driver Device tree binding
Notification LED AN30259A Y Driver Device tree binding
Accelerometer/Gyroscope LSM330DLC Y Accelerometer driver, Gyroscope driver, Device tree binding.
Touchkey Cypress ??? Y Driver
Magnetometer AK8963C Y Driver, Device tree binding
Proximity/Light sensor CM36651 Y Driver, Device tree binding
MHL SII9244BO Y? This driver might work with samsung-m0 but not t0, or for both m0 and t0. Device tree binding
Sensor Hub Samsung Sensor Hub Y Drivers, Device tree binding. This is required to get many sensors working.
Pressure Sensor BMP182 Y? As reported by sensor-readout (f-droid) under android.

BMP180 (CONFIG_BMP280) Drivers, Device tree binding

[3]

Partitions

Output of sudo parted /dev/mmcblk2 print:

Model: MMC MAG4FB (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 fat16 RADIO msftdata
11 164MB 432MB 268MB ext4 TOMBSTONES msftdata
12 432MB 1866MB 1434MB ext4 CACHE msftdata
13 1866MB 4014MB 2147MB ext4 SYSTEM msftdata
14 4014MB 4601MB 587MB ext4 HIDDEN msftdata
15 4601MB 4610MB 8389kB OTA msftdata
16 4610MB 15.8GB 11.1GB ext4 USERDATA msftdata

See also