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Qualcomm QRD8635 (qualcomm-qrd8635)

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Qualcomm QRD8635
QRD8635, Booting Arch Linux ARM on Linux 6.19
QRD8635, Booting Arch Linux ARM on Linux 6.19
Manufacturer Qualcomm
Name QRD8635
Codename qualcomm-qrd8635
Released 2024
Type handset
Hardware
Chipset Qualcomm Snapdragon 8s Gen 3 (SM8635)
CPU 1× 3.0 GHz Cortex-X4
4× 2.8 GHz Cortex-A720
3× 2.0 GHz Cortex-A520
GPU Adreno 735
Display 1080 x 2400 @ 144Hz
(6.8" AMOLED)
Storage 256 GB (UFS 4.0)
Memory 12 GB (LPDDR5X)
Architecture aarch64
Software
Original software
The software and version the device was shipped with.
Android 14
Extended version
The most recent supported version from the manufacturer.
Android
FOSS bootloader Yes
postmarketOS
Mainline
Instead of a Linux kernel fork, it is possible to run (Close to) Mainline.
no
Unixbench score
Unixbench Whetstone/Dhrystone score. See Unixbench.
0.0
Features
Flashing
Whether it is possible to flash the device with pmbootstrap flasher.
Untested
USB Networking
After connecting the device with USB to your PC, you can connect to it via telnet (initramfs) or SSH (booted system).
Untested
Internal storage
eMMC, SD cards, UFS...
Works
Battery
Whether charging and battery level reporting work.
Untested
Screen
Whether the display works; ideally with sleep mode and brightness control.
Works
Touchscreen
Works
Multimedia
3D Acceleration
Works
Audio
Audio playback, microphone, headset and buttons.
Untested
Camera
Untested
Camera Flash
Works
Connectivity
WiFi
Untested
Bluetooth
Untested
GPS
Untested
NFC
Near Field Communication
Untested
Modem
Calls
Untested
SMS
Untested
Mobile data
Untested
Miscellaneous
FDE
Full disk encryption and unlocking with unl0kr.
Untested
USB OTG
USB On-The-Go or USB-C Role switching.
Untested
Sensors
Accelerometer
Handles automatic screen rotation in many interfaces.
Untested
Magnetometer
Sensor to measure the Earth's magnetism
Untested
Ambient Light
Measures the light level; used for automatic screen dimming in many interfaces.
Untested
Proximity
Untested
Hall Effect
Measures magnetic fields; usually used as a flip cover sensor
Untested
Haptics
Untested
Barometer
Sensor to measure air pressure
Untested
Power Sensor
Sensor to monitor current, voltage and power. Not fuel gauge!
Untested
U-Boot
Primary Bootloader
Whether it is possible to replace stock bootloader with U-Boot.
Untested
Secondary Bootloader
Whether it is possible to chainload U-Boot from stock bootloader.
Works
Mainline
Whether latest upstream versions of U-Boot are not broken and it is possible to use them.
Works
Internal Storage
Whether it is possible to boot from internal storage (e.g. eMMC or UFS).
Works
USB Host
Whether it is possible to boot from a USB storage or connect a keyboard.
Untested
USB Peripheral
Whether it is possible to use device as a peripheral in U-Boot, e.g. for fastboot mode.
Untested
Display
Works
Buttons
Whether it is possible to navigate in boot menu or grub with volume and power buttons.
Works

The Qualcomm QRD8635 is a Qualcomm Reference Design device made by TCL in 2024. These devices were used for showcasing the Snapdragon 8s Gen 3 platform, as well as a reference design for OEMs.

Warning WARNING: Every working QRD8635 has Secure Boot turned off. If you see unit with Secure Boot turned on, it has been certainly tampered with, so you must skip it!
Warning WARNING: Do NOT. I repeat, do NOT flash vendor firmware onto QRDs! For example, Xiaomi bootloader that gets flashed - the first thing that it will do, is blow fuses and a Secure Boot key to the device. Then it will fail to boot because of the hardware differences. There is no coming back from this point. Secure Boot is now turned on, and can never be unfused back off. The device is now pretty much useless and stuck in EDL forever. Not even EDL peek/poke commands will work, and the phone will only accept Xiaomi firehose files.!

Maintainer list

Users owning this device

Obtaining

Warning WARNING: Make SURE that the device that you will be obtaining at least tries to boot - to a fastboot menu is enough. If not, you will probably end up with a forever bricked device!

After these devices were used for their desired purposes, some were destroyed, some were recycled, some however were sold and ended up on the second hand market primarily in China. These devices show up on platforms such as Goofish, in varying conditions.

See also