Google Pixel 3a

Google Pixel 3a
Manufacturer	Google
Codename	Pixel 3a/3a XL, Google sargo/bonito
Release Date	2019
Category	Supported
Specifications
SoC	2 x 2 GHz, 6 x 1.7GHz
Hardware Features
Video	adreno 615
Audio	yes
Network	yes
Storage	64GB
USB (Host/OTG)	Micro USB C
Camera	yes
Sensors	yes
Battery Capacity	3000/3700mAh
Software Features
Kernel	6.12
Charging	Yes
Touchscreen	Yes, multitouch
Screen	Yes
3D acceleration	Yes
Vibration motor	Yes
Audio	Yes
Phone calls	Yes
SMS	Yes
Wifi	Yes
IrDA	No
2G/3G data	Yes, ModemManager only
4G data	Yes, ModemManager only
Bluetooth	Yes
FM transmitter	No
FM receiver	No
Accelerometer	Yes
Proximity Sensor	Yes
Ambient Light Sensor	Yes
GPS	Yes, ModemManager only
A-GPS	Yes, ModemManager only
Front Camera	Yes, qcam only
Back Camera(s)	Yes, qcam only
Idle Power Consumption	280mW
Stand by time	40/50h

Installation

WIP

WARNING: Flashing Maemo Leste to your device will erase your Android installation and all the data contained in it.

Install fastboot and last android-sdk-platform-tools on your computer.

Then connect your PC and your phone through USB.

Flash mode

WIP

To enter flash mode (fastboot):

Hold "Volume Down" and "Power" buttons until fastboot appears.

Bootloader setup

WIP

Device bootloader needs to be unlocked: from Android, go to "About phone" page in Settings app. Then, click 7 times on the build number to enable developer settings. From Setting main page, go to "System", "Developer options" and enable OEM unlocking.

Before flashing Maemo Leste, you need to unlock the bootloader in fastboot mode with this command:

fastboot flashing unlock

Installation with fastboot

WIP

Download necessary img's files here

From fastboot menu:

fastboot flash boot_b <boot.img>

fastboot flash userdata <excalibur-sdm670.img>

fastboot reboot

Tweaks

WIP

Recommanded useful apps

coolkbd, brightness applet, orientation lock applet

Firefox(-esr) tips

To activate touchscreen scrolling:

Edit

/usr/share/applications/hildon/firefox-esr.desktop

modify "Exec" line

Exec=bash -c 'MOZ_USE_XINPUT2=1 /usr/bin/firefox-esr'

To modify scaling and fit to Pixel 3a screen in portrait mode, go to "about:config" and edit

layout.css.devPixelsPerPx 0.8

4G data

See PMOS page Mobile data

and ModemManager init script

that works fine even with ofono running at the same time.

Portrait VS Landscape

Almost all apps can run in portrait mode with hildon-desktop, however few apps like osso-addressbook or chromium need to be added by-hand in transitions.ini whitelist:

/usr/share/hildon-desktop/transitions.ini

Some apps can be also locked in landscape mode if needed (blacklist). It is particulary useful for video apps like smplayer.

Rotation is currently chaotic, it is recommanded to lock the device in potrait mode using Orientation Lock Applet and allow automatic landscape rotation for specific apps in transitions.ini file if needed (until a proper rotation fix).

Remaining issues

Mobile data not working with ofono (qrtr implementation).

Rotation accuracy.

GPS with geoclue implementation for Maemo location apps.

Current draw is a bit high out of the box. fixed in newer kernel. (6.12 patched kernel is available however)