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LG V500 (lg-v500): Difference between revisions

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| imagecaption = LG G Pad 8.3
| imagecaption = LG G Pad 8.3
| releaseyear = 2013
| releaseyear = 2013
| originalsoftware = Android 4.2.2
| originalsoftware = Android
| chipset = Qualcomm APQ8064T Snapdragon 600
| originalversion = 4.2.2
| chipset = Qualcomm Snapdragon 600 (APQ8064T)
| cpu = 4x 1.7 GHz Krait 300
| cpu = 4x 1.7 GHz Krait 300
| gpu = Adreno 320
| gpu = Adreno 320
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| memory = 2 GB
| memory = 2 GB
| architecture = armv7
| architecture = armv7
| status_usbnet =  
| type = tablet
| status_usbnet = Y
| status_flashing =  
| status_flashing =  
| status_touch =  
| status_touch = Y
| status_screen =  
| status_screen = Y
| status_wifi =  
| status_wifi =  
| status_xwayland =  
| status_xwayland =  
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| status_sms =  
| status_sms =  
| status_calls =
| status_calls =
| status = kernel won't compile
| booting = Y
| booting = no
}}{{Based on SoC|Qualcomm_Snapdragon_600_(APQ8064)|Snapdragon 600}}
}}{{Based on SoC|Qualcomm_Snapdragon_600_(APQ8064)|Snapdragon 600}}


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== What works ==
== What works ==
Nothing yet
 
Downstream kernel compile, Telnet iniramfs works to fix a partition issue (pmboostrap install selects wrong partition UUID), then process freeze later.


== What does not work ==
== What does not work ==
Kernel does not compile.


  kernel/pid.c:81:15: error: 'PROC_PID_INIT_INO' undeclared here (not in a function)
== How to enter flash mode ==
      .proc_inum = PROC_PID_INIT_INO,
 
=== Factory reset/enter recovery ===
 
LG default recovery can be entered thanks to `adb reboot recovery`. Those step can be used to go into a custom recovery like TWRP !
 
{{warning|Please make sure you have a custom recovery like [https://twrp.me/lg/lggpad83.html TWRP], otherwise it will format all the data}}
 
# Push and maintain `power` and `volume down` buttons
# When LG bootscreen appears release the buttons
# Push `power`, `volume up` and `volume down` buttons
# The screen should display "Factory hard reset", release the buttons
# There are two confirmation, press power twice to confirm
# Custom recovery will launch
 
=== Download mode ===
 
This mode can be used with "LG mobile support tool" in order to restore factory software. It seems to be proprietary protocol
 
# Shut down the tablet, disconnect USB cable
# Push and maintain `volume up` button
# Connect to the computer
# Release the volume button
# The screen should display "Download mode" in a white square, the blacklight seems to be at minimum so it might be difficult to read in bright light
 


fix for someone to try:
== boot.img signature ==
add <code>#include <linux/proc_fs.h></code> to <code>/kernel/pid.c</code>


== How to enter flash mode ==
While boot.img are not really signed, a magic word needs to be appended to it for the device to boot without complaining about "Secure booting error".
 
Someone kindly created a tool called [https://xdaforums.com/t/tool-cybolabs-open-bump-sign-your-boot-images-by-yourself.2950595/ Open Bump] to easily add this magic word the bootloader is looking for. An updated Python 3 version is available from [https://github.com/CyboLabs/Open_Bump/pull/3 here], then it is as easy as:
 
# Executing `./open_bump.py boot.img`
# Flashing the resulting `boot_bumped.img` to the phone thanks to `dd` or TWRP install image feature.


== Installation ==
== Installation ==
<!-- add more sections below as necessary, e.g. Wifi, photos, ... -->
<!-- add more sections below as necessary, e.g. Wifi, photos, ... -->
== Users owning this device ==
{{Device owners}}


== See also ==
== See also ==

Latest revision as of 12:46, 12 September 2024

LG G Pad 8.3
LG G Pad 8.3
LG G Pad 8.3
Manufacturer LG
Name G Pad 8.3
Codename lg-v500
Released 2013
Type tablet
Hardware
Chipset Qualcomm Snapdragon 600 (APQ8064T)
CPU 4x 1.7 GHz Krait 300
GPU Adreno 320
Display 1200x1920 (~273 PPI) IPS LCD
Storage 16 GB
Memory 2 GB
Architecture armv7
Software
Original software Android
Original version 4.2.2
postmarketOS
Category testing
Pre-built images no
Features
Flashing
No data
USB Networking
Works
Internal storage
No data
SD card
No data
Battery
No data
Screen
Works
Touchscreen
Works
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

  • Thomasdhale

Maintainer(s)

  • Thomasdhale

What works

Downstream kernel compile, Telnet iniramfs works to fix a partition issue (pmboostrap install selects wrong partition UUID), then process freeze later.

What does not work

How to enter flash mode

Factory reset/enter recovery

LG default recovery can be entered thanks to `adb reboot recovery`. Those step can be used to go into a custom recovery like TWRP !

Warning WARNING: Please make sure you have a custom recovery like TWRP, otherwise it will format all the data
  1. Push and maintain `power` and `volume down` buttons
  2. When LG bootscreen appears release the buttons
  3. Push `power`, `volume up` and `volume down` buttons
  4. The screen should display "Factory hard reset", release the buttons
  5. There are two confirmation, press power twice to confirm
  6. Custom recovery will launch

Download mode

This mode can be used with "LG mobile support tool" in order to restore factory software. It seems to be proprietary protocol

  1. Shut down the tablet, disconnect USB cable
  2. Push and maintain `volume up` button
  3. Connect to the computer
  4. Release the volume button
  5. The screen should display "Download mode" in a white square, the blacklight seems to be at minimum so it might be difficult to read in bright light


boot.img signature

While boot.img are not really signed, a magic word needs to be appended to it for the device to boot without complaining about "Secure booting error".

Someone kindly created a tool called Open Bump to easily add this magic word the bootloader is looking for. An updated Python 3 version is available from here, then it is as easy as:

  1. Executing `./open_bump.py boot.img`
  2. Flashing the resulting `boot_bumped.img` to the phone thanks to `dd` or TWRP install image feature.

Installation

Users owning this device


See also