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2.7 KiB
2.7 KiB
LGLAF.py
LGLAF.py is a utility for communication with LG devices in Download Mode. This allows you to execute arbitrary shell commands on a LG phone as root.
Requirements
LGLAF.py depends on:
- Python 2.7 or 3: https://www.python.org/
- (Windows) LG driver, LGMobileDriver_WHQL_Ver_4.0.3.exe (12986920 bytes, sha256sum: 86e893b7f5da7f7d2656d9ce2563f082271983bb63903d0ed5cb279c560db459)
- (Linux) PyUSB: https://walac.github.io/pyusb/
On Linux, you must also install
rules.d/42-usb-lglaf.rules to /etc/udev/rules.d/
in order to give the regular user access to the USB device.
Tested with:
- LG G3 (D855) on 64-bit Arch Linux (Python 3.5.1, pyusb 1.0.0b2, libusb 1.0.20)
- LG G3 (D855) on 32-bit Windows XP (Python 3.4.4, LG drivers).
Usage
This tool provides an interactive shell where you can execute commands in Download Mode. To enter this mode:
- Power off the phone.
- Press and hold Volume up.
- Connect the phone to a computer using a USB cable.
- Wait for the Download mode screen to appear.
- Release keys. You should now see a Firmware Update screen.
Now you can issue commands using the interactive shell:
(venv)[peter@al lglaf]$ python lglaf.py
LGLAF.py by Peter Wu (https://lekensteyn.nl/lglaf)
Type a shell command to execute or "exit" to leave.
# pwd
/
# uname -a
-: uname: not found
# cat /proc/version
Linux version 3.4.0-perf-gf95c7ee (lgmobile@LGEARND12B2) (gcc version 4.8 (GCC) ) #1 SMP PREEMPT Tue Aug 18 19:25:04 KST 2015
# exit
When commands are piped to stdin, the prompt is hidden:
(venv)[peter@al lglaf]$ echo mount | python lglaf.py
rootfs / rootfs rw 0 0
tmpfs /dev tmpfs rw,seclabel,nosuid,relatime,size=927232k,nr_inodes=87041,mode=755 0 0
devpts /dev/pts devpts rw,seclabel,relatime,mode=600 0 0
proc /proc proc rw,relatime 0 0
sysfs /sys sysfs rw,seclabel,relatime 0 0
selinuxfs /sys/fs/selinux selinuxfs rw,relatime 0 0
debugfs /sys/kernel/debug debugfs rw,relatime 0 0
/dev/block/platform/msm_sdcc.1/by-name/system /system ext4 ro,seclabel,noatime,data=ordered 0 0
/dev/block/platform/msm_sdcc.1/by-name/userdata /data ext4 rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc,resuid=1000,errors=continue,data=ordered 0 0
/dev/block/platform/msm_sdcc.1/by-name/persist /persist ext4 ro,seclabel,nosuid,nodev,relatime,data=ordered 0 0
/dev/block/platform/msm_sdcc.1/by-name/cache /cache ext4 rw,seclabel,nosuid,nodev,noatime,data=ordered 0 0
(venv)[peter@al lglaf]$
License
See the LICENSE file for the license (MIT).