Sony Xperia E Dual (sony-nanhu)
Manufacturer | Sony |
---|---|
Name | Xperia E Dual |
Codename | nanhu |
Released | 2013 |
Hardware | |
CPU | Qualcomm MSM7227A Snapdragon S1 |
GPU | Adreno 200 |
Display | 320x480 IPS |
Storage | 4GB |
Memory | 512MB |
Software | |
Original software | Android 4.0.4 on Linux 3.0.1 |
postmarketOS | |
Category | testing |
Pre-built images | no |
Mainline | no |
Flashing |
No data |
---|---|
USB Networking |
No data |
Internal storage |
No data |
SD card |
No data |
Battery |
No data |
Screen |
No data |
Touchscreen |
No data |
Multimedia | |
3D Acceleration |
No data |
Audio |
No data |
Camera |
No data |
Camera Flash |
No data |
Connectivity | |
WiFi |
No data |
Bluetooth |
No data |
GPS |
No data |
NFC |
No data |
Modem | |
Calls |
No data |
SMS |
No data |
Mobile data |
No data |
Miscellaneous | |
FDE |
No data |
USB OTG |
No data |
HDMI/DP |
No data |
Sensors | |
Accelerometer |
No data |
Magnetometer |
No data |
Ambient Light |
No data |
Proximity |
No data |
Hall Effect |
No data |
Haptics |
No data |
Barometer |
No data |
Contributors
- Nicknack
What works
- Compiling the kernel
What does not work
- Flashing, there are problems with Sony's boot image format
The built kernel boots with a black screen and no further sign of acitivity. Fastboot flashes without errors but flash offsets are probably wrong. Only known working kernels have a different ELF file format.
Boot image format
There is one tool avaiable for unpacking Sony's ELF boot format into the normal ANDROID format:
libbootimg
Sadly, even unpacking and repacking a working prebuilt kernel doesn't seem to work.
I had more luck with mkelf.py script from Sony. You can loosely follow the tutorial here. This time unpacking a working kernel elf image and repacking it with mkefl.py worked. Needed to change only a few bits with vbindiff. Now we only need to find a working set of offsets and image parts to do the same with a custom kernel!
Here are some links describing the problem with Sony's boot format:
- https://github.com/chenxiaolong/DualBootPatcher/issues/181
- https://github.com/Tasssadar/libbootimg/pull/2/commits/8986984b5d618be0b753e55d6b9d9d1744bc4094
- https://books.google.de/books?id=2qo6AwAAQBAJ&pg=PA313&lpg=PA313&dq=sony+boot.img+format&source=bl&ots=0mtMMle9eZ&sig=adCVtfarXK9cticvd5qqYA6g39Y&hl=de&sa=X&ved=0ahUKEwjgp5mfx5XVAhUHWRQKHWSeDZcQ6AEIQzAB#v=onepage&q&f=false
Next possible steps
- Try booting pmOS with a prebuilt kernel.
- Try repacking built kernel into ELF format
- UART debugging?