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Sony Xperia acro S (sony-hikari): Difference between revisions

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{{Infobox device
{{Infobox device
| manufacturer = Sony
| manufacturer = Sony
| name = Xperia acro S<br/>LT26w
| name = Xperia acro S (LT26w)
| codename = sony-hikari
| codename = sony-hikari
| image = File:Sony Xperia acro S.jpg
| image = File:Sony Xperia acro S.jpg
| imagecaption = Sony Xperia acro S with its included dock
| imagecaption = Sony Xperia acro S with its included dock
| releaseyear = 2012
| releaseyear = 2012
| originalsoftware = Android 4.0 (Ice Cream Sandwich), Linux 3.4.0
| originalsoftware = Android
| chipset = Qualcomm MSM8260 Snapdragon S3
| originalversion = 4.0 (Linux 3.4.0)
| chipset = Qualcomm Snapdragon S3 (MSM8260)
| cpu = 2x 1.5 GHz Scorpion
| cpu = 2x 1.5 GHz Scorpion
| gpu = Adreno 220
| gpu = Adreno 220

Latest revision as of 04:34, 24 October 2023

This device is marked as not booting.
Status: Uses unusual ELF-format boot.img that is not supported by pmOS
Sony Xperia acro S (LT26w)
Sony Xperia acro S with its included dock
Sony Xperia acro S with its included dock
Manufacturer Sony
Name Xperia acro S (LT26w)
Codename sony-hikari
Released 2012
Hardware
Chipset Qualcomm Snapdragon S3 (MSM8260)
CPU 2x 1.5 GHz Scorpion
GPU Adreno 220
Display 720 x 1280
Storage 16 GB
Memory 1 GB
Architecture armv7
Software
Original software Android
Original version 4.0 (Linux 3.4.0)
postmarketOS
Category testing
Pre-built images no


Contributors

What works

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

Booting.

Downstream kernels

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: (see dmesg)

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

Mainline kernel

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: (see dmesg)

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.

Installation

Follow Sony's instructions to unlock the bootloader.