Sony Xperia 5 II (sony-pdx206)
|Name||Xperia 5 II|
|Original software||Android 10 on kernel 4.14|
|Chipset||Qualcomm Snapdragon 865 5G (SM8250)|
|CPU||Octa-core (1x2.84 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585)|
|Display||1080x2520 6.1" OLED|
Users owning this device
How to enter flash mode
Before you can flash PostmarketOS, you'll need to unlock your bootloader as described on Sony's open devices portal. This may potentially void your warranty, be warned, and read the warnings that Sony provide also.
Once you've finished these steps, your device will have been wiped. Set up android if you want, you won't have any reason to get rid of it because UFS doesn't work at the moment (see below). Then, either:
- Power off the device. Holding up on the volume rocker, plug the device into a computer.
- (or, on android) get an adb shell and run
adb reboot bootloader.
no actual aport at the moment.
|WARNING: DO NOT NEVER EVER EVER TRY TO ENABLE UFS ON NON-VENDOR/NON-SODP KERNELS! IT WILL ERASE THE CHIP CLEAN (INCLUDING THE BOOTLOADER!) CONSIDER YOURSELF WARNED|
For more info on UFS see below
Because UFS doesn't work, you'll want to flash the rootfs to an sdcard. Use
pmbootstrap install --sdcard=/dev/path-to-sdcard-device. Take a look at partitioning to understand what's going on here.
You'll need to flash some empty bytes to the dtbo due to a bootloader bug. Get a file with two empty bytes and then flash it with
fastboot flash dtbo emptystuff.img
Then flash the kernel as usual, by putting the device into flash mode (fastboot) and then running
pmbootstrap flasher flash-kernel.
This device belongs to the Sony Edo platform, which is the Xperia 1 II (pdx203), Xperia 5 II (this one, pdx206) and the 2020 Xperia PRO (pdx204). This might warrant a common platform page if anyone gets their hands on another Edo.
The defining features of the Xperia 5 II compared to other Edo is as follows:
- 128GB UFS + 8GB RAM. GSMArena mentions a 256GB variant but it's not certain that it exists.
- lack of TOF depth camera
- smaller display resolution (both other Edo have 1644 x 3840), running at 120hz (other Edo run at 60hz)
- smaller overall body
Work has been done on the device trees in the mainline kernel by the folks over at somainline. The device does boot, USB networking and ssh work, and the framebuffer works, so x11 UIs should work.
The phone's internal storage is UFS. Sony's past devices have had a bug that will erase the phone's entire internal storage if you try to start up UFS on mainline, because one of the UFS commands is misimplemented. This includes wiping the bootloader, bricking the device FOR EVER.
Sony does all their development on one kernel for all of their devices, which means that the old driver (which includes the UFS workaround) has been carried over. However, it's not known if it was carried over 'just because' or if that behaviour still exists on Edo platform. These devices are still expensive and so far, no-one has been brave enough to test if this workaround is still needed. If you have a beyond-repair Edo device (Xperia 1 ii, 5 ii) that you are willing to sacrifice to the cause, please ask for help on the mainlining channel.
While it's not known if the workaround is definitely needed, we currently have UFS disabled in the device tree, which renders the device's internal storage unusable but means there is no chance of anything getting bricked. It should be possible to patch out this command and reenable UFS in dts on a device-specific kernel eventually.