Digma 1538E 4G (ps1150ml)

From postmarketOS
Digma 1538E 4G
Android running
Android running
Manufacturer Digma
Name 1538E 4G
Codename digma-ps1150ml
Released 2017
Category testing
Pre-built images no
Original software Android
Original version 7.0
Hardware
Chipset MediaTek MT8735
CPU 4x Cortex-A53 1.3 GHz
GPU Mali-T720
Display 1920x1200 IPS 10.1
Storage 32 GB
Memory 2 GB
Architecture AArch64
Type Tablet
This device is marked as not booting.
Status: No source dowstream kernel. Trying to make mainline for mt6735
Features
USB Networking
Flashing
Works
Touchscreen
Broken
Display
Partial
WiFi
Broken
FDE
Broken
Mainline
Works
Battery
Broken
3D Acceleration
Broken
Audio
Broken
Bluetooth
Broken
Camera
Broken
GPS
Broken
Mobile data
Broken
Internal storage
SMS
Broken
Calls
Broken
USB OTG
NFC
Sensors
Accelerometer
Broken
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
Works
U-Boot
Primary Bootloader
Works
Secondary Bootloader
Works
Mainline
Broken
Internal Storage
SD card
Works
USB Host
USB Peripheral
Display
Broken
Buttons
This device is based on the MediaTek MT6735.
See the SoC page for common tips, guides and troubleshooting steps

Contributors

  • km2
  • kedi

Maintainer(s)

Users owning this device

  • Kedi (Notes: Trying to get downstream from vendor)
  • Km2


How to enter flash mode

Use adb reboot bootloader or hold Power+Volume Down to enter fastboot mode.

Hold Volume Down when connecting to a PC if you're flashing via spflashtool.

Partition layout

PS1150ML:/ # ls -la /dev/block/platform/mtk-msdc.0/11230000.msdc0/by-name/
lrwxrwxrwx 1 root root  20 2015-09-01 00:04 boot -> /dev/block/mmcblk0p7
lrwxrwxrwx 1 root root  21 2015-09-01 00:04 cache -> /dev/block/mmcblk0p22
lrwxrwxrwx 1 root root  21 2015-09-01 00:04 custom -> /dev/block/mmcblk0p17
lrwxrwxrwx 1 root root  21 2015-09-01 00:04 expdb -> /dev/block/mmcblk0p10
lrwxrwxrwx 1 root root  21 2015-09-01 00:04 flashinfo -> /dev/block/mmcblk0p24
lrwxrwxrwx 1 root root  21 2015-09-01 00:04 frp -> /dev/block/mmcblk0p18
lrwxrwxrwx 1 root root  21 2015-09-01 00:04 keystore -> /dev/block/mmcblk0p14
lrwxrwxrwx 1 root root  20 2015-09-01 00:04 lk -> /dev/block/mmcblk0p5
lrwxrwxrwx 1 root root  20 2015-09-01 00:04 logo -> /dev/block/mmcblk0p9
lrwxrwxrwx 1 root root  21 2015-09-01 00:04 metadata -> /dev/block/mmcblk0p20
lrwxrwxrwx 1 root root  21 2015-09-01 00:04 nvdata -> /dev/block/mmcblk0p19
lrwxrwxrwx 1 root root  20 2015-09-01 00:04 nvram -> /dev/block/mmcblk0p2
lrwxrwxrwx 1 root root  20 2015-09-01 00:04 para -> /dev/block/mmcblk0p6
lrwxrwxrwx 1 root root  20 2015-09-01 00:04 proinfo -> /dev/block/mmcblk0p1
lrwxrwxrwx 1 root root  20 2015-09-01 00:04 protect1 -> /dev/block/mmcblk0p3
lrwxrwxrwx 1 root root  20 2015-09-01 00:04 protect2 -> /dev/block/mmcblk0p4
lrwxrwxrwx 1 root root  20 2015-09-01 00:04 recovery -> /dev/block/mmcblk0p8
lrwxrwxrwx 1 root root  21 2015-09-01 00:04 seccfg -> /dev/block/mmcblk0p11
lrwxrwxrwx 1 root root  21 2015-09-01 00:04 secro -> /dev/block/mmcblk0p13
lrwxrwxrwx 1 root root  21 2015-09-01 00:04 system -> /dev/block/mmcblk0p21
lrwxrwxrwx 1 root root  21 2015-09-01 00:04 tee1 -> /dev/block/mmcblk0p15
lrwxrwxrwx 1 root root  21 2015-09-01 00:04 tee2 -> /dev/block/mmcblk0p16
lrwxrwxrwx 1 root root  21 2015-09-01 00:04 userdata -> /dev/block/mmcblk0p23
lrwxrwxrwx 1 root root  21 2015-09-01 00:04 oemkeystore -> /dev/block/mmcblk0p12

Installation

Mainline kernel?

This device is based on MT8735W chipset.

Part Supported?
SoC(MT8735W) Broken/Partial
K101-MM2BA02-A panel No
Sandisk sdinadf4-32g EMMC chip Yes
GalaxyCore GC5025 Back camera No
GalaxyCore GC2365 Front camera No
MT6328 PMIC No
MT6625L BT/Wifi chip No
MT6169 maybe LTE No
MT6158 RF No
NTC3201 Temperature sensor No
GSL3676 touchscreen chip / CY101S200-01 touch panel No

UART

On the board, next to the reset button, there are 4 pins: Tx1, Rx1, Tx0, Rx0. With Tx0 I was able to get the bootloader messages. Listen at a speed of 921600

Digma-ps1150ml-uart1.jpg


Size of UART pins. Use thin copper wire and connect to Tx0 Rx0.

Uartsize.jpg

Mainline status

Still in its infancy. Simple-framebuffer and UART partially works. https://github.com/mt6735-mainline/linux

Photos

See also