LG Optimus 3D (lg-p920)
Appearance
| This device has been tested with postmarketOS, but its device package has not yet been added to the postmarketOS repositories. This means that it cannot be selected in pmbootstrap. Status: Mainline kernel boots, using downstream U-Boot for now |
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LG Optimus 3D LG Optimus 3D | |
| Manufacturer | LG |
|---|---|
| Name | Optimus 3D |
| Codename | lg-p920 |
| Released | 2011 |
| Type | handset |
| Hardware | |
| Chipset | TI OMAP 4430 |
| CPU | Dual-Core 1.0 GHz Cortex-A9 |
| GPU | PowerVR SGX540 |
| Display | 800x480 IPS 3D LCD |
| Storage | 8 GB |
| Memory | 512 MB Dual-channel |
| Architecture | armv7 |
| Software | |
Original software The software and version the device was shipped with. |
Android 2.2 |
Extended version The most recent supported version from the manufacturer. |
Android |
| FOSS bootloader | yes |
Mainline Instead of a Linux kernel fork, it is possible to run (Close to) Mainline. |
no |
Flashing Whether it is possible to flash the device with pmbootstrap flasher. |
Partial
|
|---|---|
USB Networking After connecting the device with USB to your PC, you can connect to it via telnet (initramfs) or SSH (booted system). |
Works
|
Internal storage eMMC, SD cards, UFS... |
Works
|
SD card Also includes other external storage cards. |
Works
|
Battery Whether charging and battery level reporting work. |
Broken
|
Screen Whether the display works; ideally with sleep mode and brightness control. |
Broken
|
Touchscreen |
Works
|
| Multimedia | |
3D Acceleration |
Broken
|
Audio Audio playback, microphone, headset and buttons. |
Broken
|
Camera |
Broken
|
Camera Flash |
Broken
|
| Connectivity | |
WiFi |
Broken
|
Bluetooth |
Broken
|
GPS |
Broken
|
| Modem | |
Calls |
Broken
|
SMS |
Broken
|
Mobile data |
Broken
|
| Miscellaneous | |
FDE Full disk encryption and unlocking with unl0kr. |
Untested
|
USB OTG USB On-The-Go or USB-C Role switching. |
Broken
|
HDMI/DP Video and audio output with HDMI or DisplayPort. |
Works
|
| Sensors | |
Accelerometer Handles automatic screen rotation in many interfaces. |
Broken
|
Magnetometer Sensor to measure the Earth's magnetism |
Broken
|
Ambient Light Measures the light level; used for automatic screen dimming in many interfaces. |
Broken
|
Proximity |
Broken
|
Hall Effect Measures magnetic fields; usually used as a flip cover sensor |
Broken
|
Haptics |
Broken
|
Power Sensor Sensor to monitor current, voltage and power. Not fuel gauge! |
Broken
|
Primary Bootloader Whether it is possible to replace stock bootloader with U-Boot. |
Broken
|
|---|---|
Secondary Bootloader Whether it is possible to chainload U-Boot from stock bootloader. |
Works
|
Mainline Whether latest upstream versions of U-Boot are not broken and it is possible to use them. |
Works
|
Internal Storage Whether it is possible to boot from internal storage (e.g. eMMC or UFS). |
Works
|
SD card Whether it is possible to boot from SD card. |
Works
|
USB Host Whether it is possible to boot from a USB storage or connect a keyboard. |
Untested
|
USB Peripheral Whether it is possible to use device as a peripheral in U-Boot, e.g. for fastboot mode. |
Works
|
Display |
Broken
|
Buttons Whether it is possible to navigate in boot menu or grub with volume and power buttons. |
Broken
|
Contributors
- Hacker420
Device owners
How to enter flash mode
- Download omap4boot
- Take out the battery and use omapboot to boot the unlocked version of vendor U-Boot:
python3 omapboot.py p920-aboot.2nd p920-u-boot_fastboot.bin - Once you reconnect the device, it should bring up a fastboot interface.
You should also flash the unlocked x-loader/U-Boot if you haven't done so yet (maybe the start_fastboot.sh script could be useful for that) |
Mainline U-Boot
U-Boot has dropped support for OMAP4 platform. The mainline fork for P920 is based on the last commit before the removal of OMAP4 platform support. Currently it only works as 2nd stage bootloader. SD card, eMMC, USB in peripheral mode and simple framebuffer are working. Currently it's set up to bring up SD card in phone as USB mass storage device on host.