Amazon Kindle 4 (amazon-yoshi)

From postmarketOS Wiki
Amazon Kindle 4
Manufacturer Amazon
Name Kindle 4
Codename amazon-yoshi
Released 2011
Type ebook reader
Hardware
Chipset Freescale/NXP i.MX508
CPU 800MHz ARM Cortex A8
GPU ePXP+EPDC
Display 6-inch (150 mm²), 600 × 800 pixels, 167 PPI density, 16-level grayscale
Storage 2 GB
Memory 256 MB
Architecture armv7
Software
Original software Kindle OS
postmarketOS
Category testing
Pre-built images no
Mainline yes
postmarketOS kernel 5.15-rc6
Features
Flashing
Broken
USB Networking
Broken
Internal storage
SD card
Battery
Broken
Screen
Broken
Touchscreen
Multimedia
3D Acceleration
Broken
Audio
Broken
Camera
Camera Flash
Connectivity
WiFi
Broken
Bluetooth
Broken
GPS
NFC
Broken
Modem
Calls
SMS
Mobile data
Miscellaneous
FDE
Broken
USB OTG
Broken
HDMI/DP
Sensors
Accelerometer
Broken
Magnetometer
Ambient Light
Proximity
Hall Effect
Haptics
Barometer


Contributors

  • samcday

Users owning this device


How to enter flash mode

  • Jailbreak your device by following the Kindle4NTHacking Jailbreak guide from MobileRead wiki.
  • Follow the instructions on the Kindle4NTHacking page to set up USBnet and obtain a root shell.
  • Write the image to main partition:
cat /tmp/postmarketOS-export/amazon-yoshi.img | ssh -oHostKeyAlgorithms=+ssh-rsa -oKexAlgorithms=+diffie-hellman-group1-sha1 root@192.168.15.244 "dd of=/dev/mmcblk0p1 bs=512"
  • Reboot into fastboot mode:
idme -d --bootmode fastboot
reboot

./fastboot flash kernel /tmp/postmarketOS-export/uImage && ./fastboot setvar bootmode main && ./fastboot reboot
  • Congratulations, you now have a much less useful e-reader device. But it's running mainline Linux, so there's that at least!

Installation

See also

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