Amazon Fire HD 8 2017 (amazon-douglas)
 Fire HD 8 2017 booted and running weston. | |
| Manufacturer | Amazon |
|---|---|
| Name | Fire HD 8 (2017) |
| Codename | amazon-douglas |
| Released | 2017 |
| Type | tablet |
| Hardware | |
| Chipset | MediaTek MT8163 |
| CPU | Quad-core 1.3 GHz Cortex-A53 |
| GPU | Mali-T730MP3 |
| Display | 800 x 1280 IPS LCD |
| Storage | 16GB or 32GB |
| Memory | 1.5 GB |
| Architecture | aarch64 |
| Software | |
| Original software | Android (Fire OS) |
| Original version | 5.1 (Fire OS 5.3.7.1) |
| postmarketOS | |
| Category | testing |
| Pre-built images | no |
| Mainline | no |
| postmarketOS kernel | 3.18.19 |
| Flashing |
Partial |
|---|---|
| USB Networking |
Works |
| Internal storage | |
| SD card | |
| Battery |
Works |
| Screen |
Works |
| Touchscreen |
Works |
| Multimedia | |
| 3D Acceleration |
Broken |
| Audio |
Broken |
| Camera | |
| Camera Flash | |
| Connectivity | |
| WiFi |
Broken |
| Bluetooth |
Broken |
| NFC | |
| Miscellaneous | |
| FDE | |
| USB OTG |
Broken |
| HDMI/DP | |
| Sensors | |
| Accelerometer | |
| Magnetometer | |
| Ambient Light | |
| Proximity | |
| Hall Effect | |
| Haptics | |
| Barometer | |
Contributors
Users owning this device
Known Issues
- When accessing the audio device (such as via
hwtest), the device freezes. After reboot you may be prompted with a "Collecting Logs" screen with an Amazon logo, indicating some sort of firmware level log collector. - CPU1,2,3 continuously enable and disable themselves, with logs such as:
[ 378.053320] -(3)[0:swapper/3]CPU3: Booted secondary processor [ 378.053334] -(3)[0:swapper/3][name:cpuinfo&]Detected VIPT I-cache on CPU3 [ 378.053385] -(3)[0:swapper/3][name:topology&]CPU3: update cpu_capacity 1024 [ 378.122632] (0)[1829:kworker/0:2][name:mtk_wcn_stub_alps&][cmb_stub] thermal_ctrl_cb null [ 378.342631] -(0)[1600:kwin_wayland][name:sched_monitor&][BURST IRQ DURATION WARN] IRQ[ 51:musb-hdrc.0.auto] +1237 ( dur 30000 us , avg 24 us) [ 379.122661] (0)[1829:kworker/0:2][name:mtk_wcn_stub_alps&][cmb_stub] thermal_ctrl_cb null [ 380.053771] (1)[71:hps_main][name:smp&]CPU3: shutdown
- Although the kernel can detect plugged in USB keyboard, nor X neither wayland can use the keyboard. evtest works tho. USB drives also mounts correctly..
How to enter flash mode
- You need to be bootloader unlocked via this method: https://forum.xda-developers.com/hd8-hd10/orig-development/unlock-fire-hd-8-2017-douglas-t3962846.
- After unlock, the normal fastboot doesn't let us flash in the required partitions? See notes on Amazon Fire HD 10 (amazon-suez).
- Holding vol down + power gets you into TWRP.
- Flash with the ADB sideload method.
- However, the default recovery.zip generated by pmbootstrap flashes into the boot partition, not the boot_x partition which is what is needed for this device. The recovery.zip file has to be manually editted to replace
bootwithboot_xinchroot/install_optionsandchroot_bin/pmos_install_functions. Again, see notes on Amazon Fire HD 10 (amazon-suez).
Alternatively, you can flash just the boot_x partition and then flash the rest of the system on an external sdcard:
pmbootstrap install --sdcard=/dev/...: This will install the rootfs on a SD card mounted on your computer.fastboot flash boot_x boot.img-amazon-douglas: This will flash the initramfs onto the device.- Then remove the sd card from your computer and insert it into the device. Then reboot it.
- Future updates to the rootfs does not require additional fastboot operations.
See also
- pmaports!1304 Initial merge request