Difference between revisions of "Sony Xperia acro S (sony-hikari)"
(Document current progress)
m (Intgr moved page Sony Ericsson Xperia acro S (semc-hikari) to Sony Xperia acro S (semc-hikari): The device is more commonly known as "Sony" instead of "SEMC". There's no mention on Ericsson on the device, only the logo remains on the back.)
Revision as of 12:38, 5 November 2019
This device uses a non-standard ELF format boot.img file that is not supported by postmarketOS (yet):
% file boot.img boot.img: ELF 32-bit LSB executable, ARM, version 1 (ARM), statically linked, corrupted section header size
intgr has a working hacked postmarketOS toolchain for building compatible boot.img files.
What does not work
After trying out tens of different combinations of kernel sources from the web, I couldn't find any that get as far as initramfs.
The best sources found manage to initialize the display backlight and then crash pretty late in the initialization process with error:
BUG: Bad page state in process swapper/0 pfn:5dcba
WIP can be seen here: https://gitlab.com/intgr/pmaports/compare/master...device-sony-hikari
No peripherals supported yet, but `/dev/last_kmsg` can be extracted with a binary kernel (e.g. TWRP). Sadly the boot process appears to hang after executing `/init`: https://paste.ubuntu.com/p/zdJ9TbyJxX/
WIP can be seen here: https://gitlab.com/intgr/linux-postmarketos/compare/master...device-sony-hikari
How to enter flash mode
Power off the device. Hold Volume Up as you plug the USB cable into the device.
Alternatively, perform a hard reset by holding Power and Volume Up buttons. When the device vibrates, release the Power button *first*, and it will boot into fastboot loader.