GUOXD V1 · FIRMWARE UPDATE

Your files.
Your next update.

Manage your Guoxd V1 files, verify transfers, and test the matched firmware candidate.

Guoxd_r1 integration test build

File management is available for user testing. The owner reports successful wired installation and normal Bluetooth file transfer on their device; this website and BLE firmware updates still need hardware acceptance. PCB revision is unknown.

01 / YOUR BROWSER

Ready to connect?

Bluetooth availability depends on your browser, operating system, adapter and permissions. Use HTTPS or localhost.

02 / YOUR PACKAGE

Look inside the update.

Choose a Nordic DFU ZIP to check its structure, image files and integrity. Processing stays in this browser.

Choose a ZIP packageor drop it here · up to 32 MiB

No package selected.

03 / DEVICE FILES

Your device, organized.

Bluetooth is unavailable here.

Open the HTTPS site directly in a browser with Web Bluetooth support.

Enter Bluetooth transfer on your device, then connect.

MTU is unknown. Downloads and large directories can require complete 247-byte notifications. A small successful transfer does not establish large-transfer compatibility. Uploads use conservative 15-byte chunks and are verified by downloading the device contents. Directory EOF cannot distinguish every storage error; compare large listings with your expected inventory.

Logs include file paths, metadata and the Bluetooth address. Review them before sharing.

Drop files here after opening a device folder, or use Upload.

Sort by Show hidden items

Select	Name	Size	Type	Remark

No device commands have been sent.

04 / FIRMWARE TEST

A matched candidate. A deliberate test.

Guoxd_r1 · application only · display version 2.16.1-c1 · internal version 21601. This reinstalls the same application. Production approval: false. Wireless installation has not passed hardware acceptance.

Choose the original Guoxd_V1_Guoxd_r1_app_21601_BLE_DFU_TEST_CANDIDATE.zip from your engineering handoff. The Windows/SWD ZIP cannot be used here.

Candidate ZIP

No candidate verified.

This is my confirmed LCD sample already fully flashed with Guoxd_r1; I am not migrating an unknown device. I have backed up external files, metadata and settings, and have working SWD recovery equipment and instructions. The device is charged with stable power; I accept that this is an unvalidated sample test and data retention is not guaranteed.

Recovery only: this same confirmed sample is already in DFU after an interrupted test of this exact candidate. Preserve the prior log; resume may be refused.

Verify the candidate and confirm the sample test scope first.

The device is selected again after entering DFU. Only device-confirmed CRC progress is shown. A full bar, final disconnect or unchanged version does not prove successful installation. Reconnect in normal mode and complete the file and device regression checks.

Open the hardware acceptance guide →

Before you begin

What does the package check prove?

It checks ZIP integrity, the Nordic manifest, referenced image and initialization files, and SHA-256 hashes. It does not authenticate the publisher, verify the firmware signature or establish hardware compatibility. Only compare hashes with a trusted release source.

Where is my file stored?

The inspector reads it in browser memory. This app has no upload endpoint or analytics. Clear the file or close the page to discard the in-memory report. A downloaded report contains filenames and checksums, not firmware bytes.

What is the firmware test scope?

The exact Guoxd_r1 protocol and signed candidate have been reviewed offline. Ordinary file operations are available for user testing. Firmware installation is limited to the explicitly confirmed sample and exact allowlisted package; physical BLE DFU acceptance remains pending.

What if Bluetooth is unavailable?

Try a current Chrome or Edge browser on a supported system, enable your Bluetooth adapter, and use the secure site directly. Browser support alone does not guarantee that a device will appear. Package inspection can still work without Bluetooth.