NOTE4 16-Level Grayscale Demo
Explore full refresh, partial refresh and sixteen grayscale levels on monochrome NOTE4 as a display foundation for your own e-paper projects.
USB firmware
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Device firmware · NOTE4 · Monochrome
NOTE4 16-Gray Gallery
Display home photos in sixteen grayscale levels, with phone uploads and optional NAS photo sync.
What it can do
Display home photos in sixteen grayscale levels, with phone uploads and optional NAS photo sync.
Sixteen-level grayscale photos on a monochrome panel
Device-hotspot image upload and album management
Optional historical-photo push from NAS
Install & use
Let AI help you install
Connect the device and give AI the detection results together with this firmware information.
1
Confirm the device and connect USB
USB chip information cannot distinguish monochrome from four-color screens. Confirm the model first.
Connect USB and detect the device
Read the chip and capacity first, so AI needs fewer follow-up questions.
Detection may restart the device into download mode. It does not flash firmware; you still need to confirm the display model.
Not detected yet. You can also copy the task first and ask AI to help connect.
2
Give the installation task to AI
Codex on your computer can install dependencies and run programs locally.
What AI will do next
Check compatibility → Prepare firmware and a full backup → Assist with local installation → Verify first run
After copying, start a new chat in Codex on your computer and paste the task.
See the task for AI
Only project information and the device details selected here are included. Network addresses, accounts and keys are configured locally during installation.
3
After installation, check this
The device shows the expected NOTE4 16-Gray Gallery screen and continues to work after repeated updates.
Ask AI to report the installation location, verification results and how to start again. Continue in the same conversation if something goes wrong.
Know the process? View manual steps and source
Monochrome NOTE4 only · 4BP means sixteen grayscale levels, not four colors · NAS sync needs a companion service
Confirm the monochrome panel
Here, 4BP means 4 bits per pixel, or sixteen grayscale levels. This is separate from the NOTE4C four-color gallery reference firmware; their images are not interchangeable.
Save a backup and verify files
Back up the complete 16 MB Flash and check image hashes and write layout using project instructions. Current release files have not been reviewed, and direct flashing is not provided here.
Choose an image-transfer method
The device hotspot supports phone uploads and album management. Deploy the backend and admin interface when you need automatic NAS photo selection and pushing.
Information organized · Release version and installation await review. Generating a task does not send it or run an installation automatically.
Frequently asked questions
Does 4BP mean four colors?
No. Here it means 4 bits per pixel, used for monochrome NOTE4's sixteen grayscale levels. NOTE4C uses a different four-color panel and driver.
Is a NAS required?
NAS sync is an optional companion workflow. The device also supports phone uploads and album management through its hotspot.
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