Volla Phone (volla-yggdrasil)

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Volla Phone
Booted early mainline kernel v6.1-rc5 with Sxmo!
Booted early mainline kernel v6.1-rc5 with Sxmo!
Manufacturer Volla
Name Phone
Codename volla-yggdrasil
Released 2020
Category testing
Pre-built images no
Original software Android
Original version 9
Extended version 12
Optional software Ubuntu Touch
postmarketOS kernel 6.1_rc5
Hardware
Chipset MediaTek Helio P23 (MT6763V)
CPU Octa-core Cortex-A53 @ 2.0 GHz
GPU ARM Mali-G71 MP2 (Bifrost, v6) @ 770 MHz, 2 cores
Display 1080x2340 6,3"
Storage 64 GB eMMC
Memory 4 GB
Architecture AArch64
Type handset
Unixbench Whet/Dhry score 4393.6
Features
USB Networking
Works
Flashing
Works
Touchscreen
Broken
Display
Partial
WiFi
Broken
FDE
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
Broken
Sensors
Accelerometer
Broken
Magnetometer
Broken
Ambient Light
Broken
Proximity
Broken
Hall Effect
Broken
Misc
Built-in DVB
Camera Flash
Memory Card
Haptics
FOSS bootloader
Broken
This device is based on the Helio P23.
See the SoC page for common tips, guides and troubleshooting steps

How to enter flash mode

  • Fastboot: Power on the device with both Power and Volume Up buttons held down. Then select Fastboot by pressing Volume Up and confirm with Volume Down.
  • Recovery: Do the same as for Fastboot, but select the Recovery option in the menu instead.
  • MediaTek Preloader: The preloader triggers automatically everytime the phone turns on or reboots.

Installation

Follow the usual flashing guide via pmbootstrap.

Note NOTE: fastboot booting is broken on this device, so e.g. pmbootstrap flasher boot won't work and as such kernels will always have to be flashed to the boot partition of the device.

Mainline kernel

There is some early mainline support being worked on for the MT6763 chipset; see the MediaTek Helio P23 SoC page and Volla Phone (volla-yggdrasil)/Hacking for more details.

Please note that as eMMC internal storage access isn't yet working you'll have to Netboot a postmarketOS rootfs over USB RNDIS!

As pmbootstrap flasher flash_dtbo is a pre-requisite to booting mainline please backup your existing dtbo partition contents to be able to boot downstream kernels/recovery images again with e.g. mtk r dtbo dtbo-backup.img using mtkclient!

Note NOTE: Currently mainline ONLY boots with the (Android 9) firmware & bootloader that Ubuntu Touch also uses, so flash that beforehand through the UBports installer! Needs investigation what changes are required to boot with Android 10 bootloader...

Patches of interest

Partition layout

volla-yggdrasil:~# fdisk -l -o Device,Start,End,Sectors,Size,Name /dev/mmcblk0

Disk /dev/mmcblk0: 58.24 GiB, 62537072640 bytes, 122142720 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 00000000-0000-0000-0000-000000000000

Device              Start       End   Sectors  Size Name
/dev/mmcblk0p1         64      6207      6144    3M proinfo
/dev/mmcblk0p2       6208      8255      2048    1M boot_para
/dev/mmcblk0p3       8256     73791     65536   32M recovery
/dev/mmcblk0p4      73792     74815      1024  512K para
/dev/mmcblk0p5      74816    115775     40960   20M expdb
/dev/mmcblk0p6     115776    117823      2048    1M frp
/dev/mmcblk0p7     117824    183359     65536   32M nvcfg
/dev/mmcblk0p8     183360    314431    131072   64M nvdata
/dev/mmcblk0p9     314432    379967     65536   32M metadata
/dev/mmcblk0p10    379968    396351     16384    8M protect1
/dev/mmcblk0p11    396352    425983     29632 14.5M protect2
/dev/mmcblk0p12    425984    442367     16384    8M seccfg
/dev/mmcblk0p13    442368    540671     98304   48M persist
/dev/mmcblk0p14    540672    544767      4096    2M sec1
/dev/mmcblk0p15    544768    675839    131072   64M md1img
/dev/mmcblk0p16    675840    708607     32768   16M md1dsp
/dev/mmcblk0p17    708608    710655      2048    1M spmfw
/dev/mmcblk0p18    710656    712703      2048    1M sspm_1
/dev/mmcblk0p19    712704    714751      2048    1M sspm_2
/dev/mmcblk0p20    714752    747519     32768   16M gz1
/dev/mmcblk0p21    747520    780287     32768   16M gz2
/dev/mmcblk0p22    780288    911359    131072   64M nvram
/dev/mmcblk0p23    911360    913407      2048    1M lk
/dev/mmcblk0p24    913408    915455      2048    1M lk2
/dev/mmcblk0p25    915456    980991     65536   32M boot
/dev/mmcblk0p26    980992    997375     16384    8M logo
/dev/mmcblk0p27    997376   1013759     16384    8M dtbo
/dev/mmcblk0p28   1013760   1023999     10240    5M tee1
/dev/mmcblk0p29   1024000   1048575     24576   12M tee2
/dev/mmcblk0p30   1048576   2686975   1638400  800M vendor
/dev/mmcblk0p31   2686976  10027007   7340032  3.5G system
/dev/mmcblk0p32  10027008  10911743    884736  432M cache
/dev/mmcblk0p33  10911744 122109918 111198175   53G userdata
/dev/mmcblk0p34 122109919 122142686     32768   16M flashinfo

Community Info

postmarketOS users that own the device

Maintainer(s)

Contributors

See also