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We have multiple FJD Trion P2 3D scanning devices in the UK that cannot complete firmware upgrades via the device’s built-in web/browser UI. The upload step succeeds, but the upgrade process fails due to validation/authorization gates and device-side restrictions. We need an experienced contractor to help us diagnose, document, and resolve the issue to enable firmware upgrades reliably in the UK, and to support escalation with the manufacturer. Important: These devices were purchased directly from the manufacturer / official supply chain. However, manufacturer support has been slow and unhelpful. We need an independent technical specialist to get this finished, using legitimate, supportable methods. What we’ve established so far Device update flow (observed) 1. Browser uploads ZIP to device via HTTP: POST [login to view URL] 2. Device stores it at: /var/www/html/upload/[login to view URL] (Confirmed downloadable from [login to view URL]) 3. Browser triggers update via WebSocket service call: ws://[login to view URL] Service: /software_update with args {op:1, filename:"update"} 4. Device replies with service_response including status/info. Two independent blockers identified • Device disabled gate: /software_update returns status:-1 and info:"设备已被禁用" (“Device has been disabled”). • Region/lock cloud validation gate: The UI performs cloud validation calls ([login to view URL] + [login to view URL] endpoints). When offline / partial connectivity, it fails with DNS/TLS errors and logs “地区锁验证失败” (“Region-lock verification failed”). When online, the UI can reach cloud but some requests return 401 Unauthorized. Console flags like “中国地区锁: true” and “串货标识: true” appear. We have tooling & evidence • Multiple DevTools captures (XHR + WebSocket messages) • JSONL sniffer logs capturing: • WebSocket frames (/software_update request/response) • console logs • network failures to cloud endpoints • A bilingual technical report summarizing findings (English/Chinese) • Example WS request/response showing the disabled gate: • Request: call_service /software_update … • Response: status:-1, info:"设备已被禁用" Current complication A Tampermonkey userscript (“FJD Fix v2.6”) can inject UI states (e.g., “installation complete / restarting”) without proving the backend accepted the update. We need rigorous validation against WebSocket traffic and actual device reboot/version. What we need help with We need a contractor to take ownership of finishing this and getting upgrades working reliably. Primary deliverables 1. Definitive root cause analysis • Confirm exactly what conditions cause /software_update to be rejected. • Confirm what cloud validation requires (auth tokens/cookies/headers/region entitlements), including what causes the 401. • Determine whether the browser environment used by automation differs from normal Chrome (headers/cookies/CORS/origin). 2. Complete capture of region-lock cloud calls • Produce a reliable capture method that logs full request/response details for: • [login to view URL] • any related validation endpoints • relevant myqcloud ping/config endpoints • Identify required cookies/auth headers or login session requirements, if any. 3. Action plan + vendor escalation package • Provide a clear list of what FJD must change server-side (disabled flag removal, entitlement/channel correction, token provisioning, etc.). • Provide a concise technical evidence bundle (logs + call traces + translations). • Draft an email/escalation note (English/Chinese) to send to FJD. 4. Practical resolution path • Identify the most likely vendor-supported resolution path: • backend flag clearing • correct “Overseas/Global” firmware channel assignment • provision of an official offline recovery image • signed authorization token/file/code for upgrades • Provide step-by-step instructions for our team to validate success. Nice-to-have • Validate firmware package structure/signature requirements and version compatibility (e.g., downgrade prevention, channel mismatch). • Identify if the unit’s SN differs across modules (UI uses B vs C serials) and whether that affects entitlement checks. Constraints / boundaries • Work must be legal and supportable. We are not seeking unauthorized circumvention. • We want to work with the manufacturer’s systems/entitlements, but need technical clarity to compel support. Required skills • Strong network debugging (Chrome DevTools, WebSocket protocols, XHR analysis) • Experience with embedded device web UIs / OTA update flows • Python/automation skills (Playwright/selenium, traffic capture) • Ability to reason about auth flows (cookies/tokens/401/403) • Bonus: familiarity with ROSBridge-style WebSocket messaging, nginx/autobahn stacks. What we will provide to the freelancer • Device access on LAN ([login to view URL] web UI + WS endpoint) • Existing sniffer scripts + JSONL logs • Screenshots and prior PDF technical report (EN/ZH) • Firmware files we’ve attempted (zip + .bin/.deb samples) Please review the attached PDF before bidding for the project.
Project ID: 40211782
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Your PDF confirms the issue isn\'t the file upload, it\'s the status: -1 \"Device Disabled\" response in the WebSocket handshake. I think most people will waste hours trying to force-feed the ZIP file or bypass the UI, but that won\'t work because the backend gate is explicitly blocking the serial number. I read the logs on Page 5 -this is a backend authorization refusal, not a simple bug.\r\n\r\nI will stop the guesswork and use your existing sniffer tools to capture the exact authentication headers failing at scanner.fjdac.cn. My workflow is simple: I isolate the 401 errors, extract the missing token requirements, and compile a \"Vendor Escalation Packet.\" This will be a single, undeniable technical document (English/Chinese) that proves the issue is on their server, forcing them to unlock the device without you fighting support for weeks.\r\n\r\nI can wrap this up fast because I handle network protocols and authgates daily. Ill provide the root cause and the escalation letter in one go so you dont have to hire a separate translator or technical writer later.\r\n\r\nLet\'s fix this blocking issue.
£80 GBP in 4 days
2.3
2.3
56 freelancers are bidding on average £169 GBP for this job

I have thoroughly reviewed the project requirements for the FJD Trion P2 Firmware Upgrade Troubleshooting & Vendor Escalation Support. My expertise in Python, Software Architecture, HTML, Debugging, and Firmware align perfectly with the tasks at hand. I am confident in my ability to provide the definitive root cause analysis and develop a practical resolution path. The budget can be adjusted as we delve into the full project scope. I am eager to commence work and ensure successful outcomes. Please go through my profile to witness my extensive experience spanning 15 years. Your satisfaction is my top priority, and I am ready to discuss the project details. I am enthusiastic about the opportunity to work together.
£140 GBP in 7 days
8.5
8.5

Hey there, I'm confident I can help resolve the firmware upgrade issue on your FJD Trion P2 devices in the UK. With my experience in network debugging, embedded device web UIs, and Python automation, I will conduct a thorough root cause analysis and provide a definitive action plan for reliable upgrades. Let's work together to get your devices up and running smoothly. What specific technical challenges are you currently facing with the devices?
£140 GBP in 1 day
5.6
5.6

Hi there Thanks for posting this exciting project. I checked your project carefully, I think I can complete your project within your needed timeline. I am super professional in Python, Software Architecture, HTML, Debugging, Firmware, Embedded Systems Please ping , I am always online here Thanks Efanntyo -.
£50 GBP in 5 days
6.0
6.0

Hello Dear! I write to introduce myself. I'm Engineer Toriqul Islam. I was born and grew up in Bangladesh. I speak and write in English like native people. I am a B.S.C. Engineer of Computer Science & Engineering. I completed my graduation from Rajshahi University of Engineering & Technology ( RUET). I love to work on Web Design & Development project. Web Design & development: I am a full-stack web developer with more than 10 years of experience. My design Approach is Always Modern and simple, which attracts people towards it. I have built websites for a wide variety of industries. I have worked with a lot of companies and built astonishing websites. All Clients have good reviews about me. Client Satisfaction is my first Priority. Technologies We Use: Custom Websites Development Using ======>Full Stack Development. 1. HTML5 2. CSS3 3. Bootstrap4 4. jQuery 5. JavaScript 6. Angular JS 7. React JS 8. Node JS 9. WordPress 10. PHP 11. Ruby on Rails 12. MYSQL 13. Laravel 14. .Net 15. CodeIgniter 16. React Native 17. SQL / MySQL 18. Mobile app development 19. Python 20. MongoDB What you'll get? • Fully Responsive Website on All Devices • Reusable Components • Quick response • Clean, tested and documented code • Completely met deadlines and requirements • Clear communication You are cordially welcome to discuss your project. Thank You! Best Regards, Toriqul Islam
£50 GBP in 5 days
5.7
5.7

Nice to meet you ,The requirements of your project match my areas of work and skills, to introduce myself. My name is Anthony Muñoz and i am the lead engineer for DS Pro IT agency. I have worked for over 10 years as a Full-Stack and software development engineer and have successfully done multiple jobs. It will be a pleasure to work together to make your project. Feel free to discuss about the project with me, greetings.
£344 GBP in 7 days
5.6
5.6

Hello client, I'm Denis Redzepovic, an experienced developer with expertise in Embedded Systems, HTML, Firmware, Debugging, Python and Software Architecture. I have worked extensively on diverse Python projects, ranging from backend development and automation to data processing and API integrations. My deep understanding of Python’s libraries and frameworks allows me to build efficient, scalable, and maintainable solutions. I pay close attention to code quality and performance to ensure your project runs flawlessly. With my solid experience, I’m confident I can deliver results that exceed your expectations. I focus on writing clean, maintainable, and scalable code because I know the difference between 99% and 100%. If you hire me, I’ll do my best until you’re completely satisfied with the result. Let’s discuss your project details so I can tailor the perfect Python solution for you. Thanks, Denis
£120 GBP in 2 days
5.6
5.6

Hi There, with 9 years of experience in the same field, I am the best fit to complete this project. My past experience and skills make me well-equipped to diagnose, document, and resolve the firmware upgrade issue with the FJD Trion P2 3D scanning devices in the UK. How I will be completing this project: - Conduct definitive root cause analysis to identify why the firmware upgrade process fails - Capture region-lock cloud calls for full details and requirements - Develop an action plan and vendor escalation package for resolution - Provide a practical resolution path with step-by-step instructions for validation What tech stack I will be following: - Strong network debugging using Chrome DevTools and WebSocket protocols - Experience with embedded device web UIs and OTA update flows - Python automation skills with Playwright/selenium for traffic capture - Knowledge of auth flows like cookies, tokens, and 401/403 responses I have worked on similar solutions in the past and will ensure a legitimate and supportable resolution for your devices. I will utilize my expertise to address the identified blockers and provide a reliable method for firmware upgrades in the UK. Roadmap to complete the project: 1. Conduct root cause analysis and region-lock cloud calls capture 2. Develop an action plan and vendor escalation package 3. Implement a practical resolution path with validation instructions 4. Provide ongoing support and assista
£50 GBP in 7 days
5.3
5.3

I will perform a definitive root cause analysis, capturing region-lock cloud calls, and provide an action plan with a vendor escalation package to resolve firmware upgrade issues on FJD Trion P2 3D scanning devices, ensuring a practical resolution path and adhering to legal and supportable methods within the proposed budget. Waiting for your response in chat! Best Regards.
£125 GBP in 3 days
4.9
4.9

With nearly a decade of experience under my belt, I've worked in both large IT firms and as a freelancer, building applicatioons not dissimilar from your project. I've had ample practical experience with Python and extensive knowledge in identifying and rectifying firmware issues like the ones plaguing the FJD Trion P2 devices you have. My understanding of HTML can assist us to comprehend the interface better, while my proficiency with Python could bring more dynamism into the diagnostic process with sophisticated algorithms, making it more precise and efficient. In summary, I propose to leverage skills developed on-the-job over 8 years of experience and my robust technical acumen to provide efficient project completion-helping your FJD Trion P2 devices undergo firmware upgrades without difficulties. My wide-ranging skills in web development, devops and databases will be of great value throughout our work together. If chosen, I assure you that we'll quickly identify the root causes of the issues at hand, present practical solutions for FJD's consideration along with actionable evidence bundle, all whilst taking measures to ensure reliable functionality after upgrades are completed.
£125 GBP in 7 days
4.6
4.6

Hello Ben, I came across your project FJD Trion P2 Firmware Upgrade Troubleshooting & Vendor Escalation Support (UK / Region-lock + Device Disabled) and I am very interested in working with you. I have reviewed your requirements and fully understand the scope and expectations. I specialize in Python, Software Architecture, HTML, Debugging, Firmware, Embedded Systems and have successfully delivered similar projects before. I am committed to delivering high-quality work with reliability, clarity, and professionalism. I work transparently throughout the project so progress, deadlines, and expectations stay clear at every stage. I would be glad to discuss further details and am ready to start immediately. Looking forward to hearing from you. Regards, Anum
£130 GBP in 3 days
4.3
4.3

Hi, I have thoroughly reviewed your detailed project description regarding the FJD Trion P2 firmware upgrade issues in the UK. With my solid background in embedded systems, network debugging, and experience working with OTA update flows and WebSocket protocols, I am confident in delivering a rigorous diagnosis and resolution. I will perform a root cause analysis of the device's disabled gate and region-lock cloud validation, complemented by comprehensive capture of the cloud calls and authentication flows. With expertise in Python automation (Playwright/Selenium) and deep understanding of auth tokens/cookies, I will provide a clear, actionable escalation package for the vendor and a robust resolution path that aligns with legal and supportable practices. I can start immediately to analyze your existing logs and device access, aiming to deliver initial findings within a week. What specific timeline do you envision for the completion of the firmware upgrade troubleshooting and vendor escalation support? Best regards,
£140 GBP in 28 days
4.5
4.5

Hello I’m 100% sure I can help you out with this project and meet your expectations. Let’s connect on chat and discuss the requirements in more detail. Please come over chat and discuss your requirement in a detailed way. Regards Syed Raza
£110 GBP in 2 days
3.6
3.6

Hi There, with 9 years of experience, I am the best fit for this project. I have the relevant skills and expertise to help diagnose, document, and resolve the firmware upgrade issue for the FJD Trion P2 3D scanning devices in the UK. How I will be completing this project: - Conduct a definitive root cause analysis to determine why the firmware upgrade process fails - Capture region-lock cloud calls and identify required cookies/authentication headers - Develop an action plan and vendor escalation package for FJD - Identify a practical resolution path and provide step-by-step instructions for validation What tech stack I will be following: - Strong network debugging using Chrome DevTools and WebSocket protocols - Experience with embedded device web UIs and OTA update flows - Python automation skills with Playwright/selenium for traffic capture - Ability to reason about authentication flows and familiarity with ROSBridge-style WebSocket messaging I have worked on similar solutions in the past and have the expertise to handle this project effectively. I will ensure that the work is legal and supportable, following the manufacturer's systems and entitlements while providing technical clarity for support. I have the necessary tools and resources to complete the project successfully, including device access on LAN, existing sniffer scripts and logs, and firmware files samples. I am confident in my ability to deliver the desired
£50 GBP in 7 days
3.7
3.7

Welcome to professional Python development services! Hi there, I'm Alema, a Python expert programmer who strives for clear code in atmospheric, numerical weather prediction, physics, and all other seminal fields. I'm ready to provide you with high-quality services. I have completed 350+ projects with a 100% Positive Rating. If you are looking for Quality work, look no further. Also, we are a team of professional workers, and we are always available 24/7 to help employers without limitations, and delivery is guaranteed on time. Your faithfully. Eng. Alema Akter
£50 GBP in 1 day
3.0
3.0

Hi, I reviewed your project about "FJD Trion P2 Firmware Upgrade Troubleshooting & Vendor Escalation Support (UK / Region-lock + Device Disabled)" and noticed that you're working with the device’s built-in web/browser UI for firmware upgrades. That tells me the main challenge here is overcoming stringent device-side restrictions and region-lock validation gates that block firmware updates. I’ve worked on similar embedded systems projects where I: - designed scalable backend APIs, - implemented secure authentication and data models, - and delivered production-ready web/mobile features. For your project, I’d suggest starting with a thorough root cause analysis focusing on the WebSocket /software_update service call and cloud validation flows to identify exact auth requirements and error triggers. This approach will help avoid unreliable user-script workarounds and enable a legitimate, vendor-supported resolution. Before moving forward, I have one quick question: Could you clarify whether you have already tested or intercepted the authentication tokens or headers used in the cloud validation requests, and whether you observed any differences between manual and automated browser environments? If this aligns with your expectations, I can outline a clear implementation plan and timeline right away. Best regards, Nilo
£190 GBP in 15 days
3.2
3.2

sure, no prob. i can start now. you need a tech specialist to resolve firmware upgrade issues. what's causing the device to be disabled? want to walk me through the current update flow? once you guide me, I'll provide a detailed action plan. best.
£160 GBP in 1 day
2.3
2.3

Hello, I’ve carefully reviewed the project details and understand that the core issue is not the file upload itself, but the post-upload validation gates — specifically the device-side “disabled” flag and the region-lock/cloud entitlement checks that block /software_update execution. This is a structured debugging and escalation problem, not a firmware hack — and I fully respect the requirement that all work must remain legitimate and manufacturer-supportable. This is a structured debugging and escalation engagement. I’m comfortable taking ownership through to a defensible, documented vendor-resolution outcome. Best regards, Oleksandr
£350 GBP in 7 days
2.1
2.1

Hello, an experienced technical specialist for firmware upgrades and vendor escalation can handle this project effectively. As an engineer skilled in network debugging, embedded device web UIs, and Python automation, I can provide comprehensive support to diagnose and resolve the issue with FJD Trion P2 devices in the UK. Based on your project details, I understand the complexities you've encountered with firmware upgrades, device restrictions, and manufacturer support challenges. My relevant experiences include troubleshooting OTA update flows, analyzing WebSocket protocols, and addressing authorization flows to ensure a reliable resolution. Looking forward to working with you to achieve successful upgrades and effective vendor escalation. Thank you, Ihor
£50 GBP in 6 days
2.2
2.2

With over 7 years of experience in network debugging and embedded device web UIs, I am confident that I am the best fit to complete this project. I have the relevant skills and expertise to diagnose, document, and resolve the firmware upgrade issue with the FJD Trion P2 devices in the UK. **How I will complete this project:** - Conduct a definitive root cause analysis to identify why the /software_update is being rejected. - Capture region-lock cloud calls for thorough analysis. - Develop an action plan and vendor escalation package for FJD. - Identify the most likely vendor-supported resolution path for the firmware upgrade issue. **Tech stack I will use:** - Chrome DevTools for network debugging. - Python for automation and traffic capture. - Knowledge of auth flows and WebSocket protocols. - Familiarity with ROSBridge-style messaging. I have worked on similar solutions in the past and can provide the technical expertise needed to resolve this issue. I will ensure that the work is legal and supportable, working within the boundaries of the manufacturer's systems and entitlements. I am prepared to take ownership of this project and provide the necessary deliverables to enable reliable firmware upgrades for the FJD Trion P2 devices in the UK. I look forward to working with you on this project.
£55 GBP in 7 days
1.2
1.2

Hello, Greetings , Good afternoon! I’ve carefully checked your requirements and really interested in this job. I’m full stack developer working at large-scale apps as a lead developer with U.S. and European teams. I’m offering best quality and highest performance at lowest price. I can complete your project on time and your will experience great satisfaction with me. I’m well versed in React/Redux, Angular JS, Node JS, Ruby on Rails, html/css as well as javascript and jquery. I have rich experienced in Debugging, HTML, Embedded Systems, Software Architecture, Python and Firmware. For more information about me, please refer to my portfolios. I am checking your attachment, I'll update you shortly... I’m ready to discuss your project and start immediately. "设备已被禁用" Looking forward to hearing you back and discussing all details.. Many thanks
£50 GBP in 2 days
0.4
0.4

Oldham, United Kingdom
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Member since Nov 16, 2019
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