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Project overview We are looking for an experienced Android developer with deep knowledge of Qualcomm modem internals to build a native Android application that controls cellular network selection at the hardware level using NV Items. The app must run on rooted Qualcomm-based Android devices. Core requirements App must run on Qualcomm-based Android phones with root permissions. Communicate with the modem via NV Items (QCRIL / AT commands or equivalent low-level interface). Key features — NV item-based locking The main purpose of the app is to lock the device to specific network parameters: Technology lock — restrict the device to a single RAT: GSM, UMTS, LTE, or 5G NR. Band lock — lock to a specific frequency band within the selected technology. Channel lock — lock to a specific channel: BCCH (2G), ARFCN (UMTS / 3G), or EARFCN (LTE / 4G). Cell parameter lock — lock to a specific cell identifier: Scrambling Code (SC) on UMTS, or PCI on LTE. Ideal candidate has Prior experience with Qualcomm RIL, DIAG protocol, or NV item manipulation on Android. Good understanding of cellular network fundamentals (2G/3G/4G/5G air interfaces). Experience with rooted Android development (root shell, su, Magisk modules, etc.). Ability to test on real Qualcomm hardware (Snapdragon-based devices preferred). Deliverables Working APK with all lock features described above. Source code (clean, commented). Brief documentation on how to use and extend the app.
ID do Projeto: 40336751
160 propostas
Projeto remoto
Ativo há 13 dias
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160 freelancers estão ofertando em média €2.170 EUR for esse trabalho

⭐️⭐️⭐️⭐️ Qualcomm NV Item Network Lock Android App⭐️⭐️⭐️⭐️ I will develop a Flutter based Android application for rooted Qualcomm-based devices that allows fine-grained cellular network control using NV Items, enabling technology, band, channel, and cell-level locking, along with clean, maintainable source code and documentation for usage and future extension. • End User / Device Owner • Technology lock (GSM/UMTS/LTE/5G) • Band lock • Channel lock (BCCH/ARFCN/EARFCN) • Cell parameter lock (SC/PCI) • Apply/save network lock settings • Developer / Tester • Access NV Item interface for testing • Debug and log modem communication • Load and test APK on Qualcomm devices • Admin / Support (Optional) • Provide guidance on device compatibility • Manage updates and configuration templates Let’s chat… Thanks
€1.800 EUR em 15 dias
9,4
9,4

With over 10 years of experience in Android development and a deep understanding of Qualcomm modem internals, I understand the importance of building a native Android application that controls cellular network selection at the hardware level using NV Items on rooted Qualcomm-based devices. Your project requires a developer who can deliver a robust solution that meets the core requirements of running on Qualcomm-based phones with root permissions and communicating effectively with the modem via NV Items. In the past, I have successfully completed projects in the telecommunications and rooted Android development space, showcasing my ability to deliver high-quality solutions that meet client specifications. My experience with Qualcomm RIL, DIAG protocol, and rooted Android development positions me as an ideal candidate for this project. I am excited about the opportunity to work on your Qualcomm Modem Android Application Development project and deliver the working APK with all lock features, clean source code, and comprehensive documentation. Let's connect to discuss how we can bring your project to life efficiently and effectively.
€2.400 EUR em 30 dias
8,3
8,3

HELLO, I HAVE CAREFULLY REVIEWED YOUR REQUIREMENTS AND FULLY UNDERSTAND THE PROJECT SCOPE FOR A NATIVE ANDROID APPLICATION WITH NV ITEM-BASED NETWORK LOCKING ON ROOTED QUALCOMM DEVICES. I HAVE 10+ YEARS OF EXPERIENCE IN ANDROID DEVELOPMENT, LOW-LEVEL TELECOM INTEGRATION, AND ROOTED DEVICE PROGRAMMING, INCLUDING WORK WITH QUALCOMM RIL, DIAG PROTOCOL, AND NV ITEM MANIPULATION. I HAVE HANDS-ON EXPERIENCE TESTING ON SNAPDRAGON-BASED DEVICES AND IMPLEMENTING CUSTOM NETWORK LOCKING AND BAND SELECTION FEATURES. PROPOSED APPROACH: • Develop a native APK capable of technology, band, channel, and cell parameter locks. • Communicate with the modem using NV Items / QCRIL / AT commands. • Implement a clean, modular, and commented codebase. • Include documentation for usage, extension, and testing. • Deliver full source code, ensuring maintainability and scalability. I will provide 2 years of ongoing support, complete source code, and work with agile methodology, assisting from initial development to deployment and testing on real devices. I eagerly await your positive response. Thanks
€2.250 EUR em 7 dias
8,3
8,3

Hi, This is Elias from Miami. I checked your project description and understand you need a native Android app for rooted Qualcomm devices that can control modem-level network selection through NV items and related low-level interfaces. The core requirement is precise locking of RAT, band, channel, and cell parameters on real Snapdragon-based hardware, delivered as a working APK with clean source and documentation. I’ve worked on Android systems involving low-level device communication, hardware integration, and custom debugging flows, so I understand the challenges around rooted environments, modem interfaces, and reliable testing on actual devices. My approach would be to first confirm the accessible modem interface on your target phones, then build the native lock logic for each parameter layer, wrap it in a simple Android UI, and validate each feature carefully on supported Qualcomm hardware before final delivery. I’d be happy to go through the details and suggest the best technical approach. I have a few questions to get a better understanding: Q1 – Which exact Qualcomm device models and Android versions will be used for phase 1 testing? Q2 – Do you already know whether DIAG, QCRIL, or AT-command access is available on those devices, or should that be part of the initial discovery work? Q3 – For 5G support, do you need both NSA and SA locking from the first version, or should LTE/UMTS/GSM be prioritized first? Looking forward to hearing from you.
€2.250 EUR em 7 dias
8,1
8,1

Hello, I understand you need an Android app that can control Qualcomm modem network selection at the hardware level using NV Items on rooted devices. The app will let users lock technology (2G, 3G, 4G, 5G), bands, channels, and cell parameters directly by communicating through low-level interfaces like QCRIL or AT commands. My approach involves building a native Android app using Java/C with root access to interact with the Qualcomm RIL and DIAG protocols, ensuring it works smoothly on Snapdragon-based devices. I’ll deliver a tested APK, source code with clear comments, and documentation to help you or others maintain and expand the app easily. Could you share which specific Qualcomm device models and Android versions the app should support? Thanks,
€3.000 EUR em 24 dias
7,9
7,9

Locking devices at the NV-item level is exactly where most projects fail—one wrong write can soft-brick radios or create unstable network behavior. I’ve worked with low-level Android stacks and understand how critical safe DIAG/QCRIL interaction is when manipulating modem parameters. I’d build a native Android app (Java + NDK/C where needed) that interfaces with Qualcomm DIAG/NV via controlled root access (su/Magisk), with strict validation layers before any NV write. Each lock (RAT, band, EARFCN/ARFCN, PCI/SC) would be modular, with rollback safeguards and state verification to prevent modem instability. I’d also include a diagnostic layer (read-back + logging) to ensure applied locks persist correctly. One improvement: add a profile system to switch between predefined network configs safely. Relevant work includes low-level Android integrations and backend systems (Python/PHP) handling hardware-adjacent logic with strict reliability constraints. Q1: Which Qualcomm chipset(s) and Android versions must be supported? Q2: Do you have existing DIAG/NV mappings or should I derive them per device? Q3: Is persistence across reboots (NV vs runtime forcing) a requirement?
€2.000 EUR em 10 dias
7,0
7,0

Hey, I’ve got solid experience in web scraping and backend development using PHP and Python, and I’ve worked a lot with Scrapy, BeautifulSoup, and Selenium to build reliable, efficient systems. I can build a clean pipeline that handles scraping subcategories, formats the data into JSON or text, and sends it straight to Telegram using the Telegram Bot API. It’ll run smoothly on a VPS with proper logging, auto-restart, and a stable setup so you don’t have to worry about downtime. I keep things simple and clear with regular updates, and I’ll be there for two weeks after delivery to make sure everything runs just right. Let’s start a chat to go over a couple of quick points—I’m ready to get started right away. Thanks...
€1.500 EUR em 7 dias
7,1
7,1

Hi, We can build your rooted Android app with deep Qualcomm NV item control, including RAT, band, channel, and cell locking. Our team has strong experience in low-level Android, DIAG/RIL communication, and working with Qualcomm devices. We’ll deliver a stable APK, clean source code, and clear documentation. Let’s discuss your device setup and testing plan.
€2.250 EUR em 7 dias
7,3
7,3

Good to see this project, I will build the native Android app for rooted Qualcomm devices with NV item-based locking for technology (GSM, UMTS, LTE, 5G NR), band, channel (BCCH, ARFCN, EARFCN), and cell parameter (Scrambling Code, PCI) selection, all communicating directly with the modem layer. I will use the DIAG protocol over /dev/diag to read and write NV items rather than relying solely on AT commands, since DIAG gives direct access to the modem's non-volatile storage and supports a wider range of lock parameters without carrier restrictions. Questions: 1) Which Snapdragon chipsets do you need to support (e.g., 6-series, 8-series, or specific models)? 2) Should the app persist lock settings across reboots, or apply them per session only? 3) Do you have test devices ready with root and DIAG port access enabled? Let us discuss via chat. Best regards, Kamran
€3.000 EUR em 40 dias
7,4
7,4

Hi there To build an app that can “lock the device to specific network parameters” via NV items, the most critical part is implementing a stable modem interface layer that communicates reliably with Qualcomm’s DIAG/QCRIL stack without causing radio instability. I’ll approach this by first validating NV access on target devices (root + DIAG), then building a controlled command layer for RAT, band, channel, and cell locking with safeguards and rollback mechanisms. This ensures precise control while keeping the device usable and recoverable. This means I understand your goal is not just sending low-level commands, but delivering a dependable tool that works consistently across Qualcomm devices. My process is simple: Validate modem access and NV interaction paths Implement locking features with structured command handling Test across scenarios and document safe usage/extension I’m ready to begin with device validation and NV interface setup, then move into feature implementation..
€2.250 EUR em 7 dias
6,9
6,9

Hello, I am confident that I have the technical know-how to effectively communicate with Qualcomm modems via the NV Items or low-level interface like QCRIL/AT commands. My solid understanding of cellular network fundamentals across 2G/3G/4G/5G air interfaces will aid in precise network selection. Additionally, my experience with rooted Android development (root shell, su, Magisk modules) ensures that I can create an app that performs flawlessly within the necessary system requirements. To produce optimal results for your project, I currently have access to Snapdragon-based devices which will allow me to test the project on real Qualcomm hardware. Lets Connect
€2.250 EUR em 20 dias
6,9
6,9

Hello, I’ve gone through your project details and this is something I can definitely help you with. I have 10+ years of experience in mobile app development, specifically working with Android applications. My background includes deep knowledge of Qualcomm modem internals, ensuring effective communication with NV Items and the modem through QCRIL or AT commands. My focus is on clean code architecture and clear communication, which will keep the project moving smoothly. I will first review your requirements in detail and recommend the best approaches to handle the locking features for network selection at the hardware level. This will ensure the app is robust and meets all your specifications. Here is my portfolio: https://www.freelancer.in/u/ixorawebmob I’m keen on your project and would love to clarify: Could you clarify if there are specific device models you want to target for testing? Let’s discuss over chat! Regards, Arpit Jaiswal
€1.500 EUR em 20 dias
7,5
7,5

Hello, With a solid 8+ years of diversified experience as a Full Stack Developer, I bring to the table an in-depth knowledge of numerous programming skills that are uniquely designed to meet and exceed your project's core requirements. Your Qualcomm-based Android application is exactly in my wheelhouse, especially given my experience with rooted development and understanding of Qualcomm RIL, DIAG protocol, and NV items on Android. I have hands-on skills with Qualcomm modems and can successfully communicate with them via NV items, QCRIL / AT commands or other equivalent low-level interfaces. My proven expertise in building and integrating AI-powered systems merges seamlessly with this project's demand for familiarity with Snapdragon-based devices. Moreover, I am naturally aligned to deliver not only a sound working APK but also a source code (clean, commented) and thorough documentation to ensure easy usability and potential enhancements by your team or any future developer. I would even be able to provide real-world testing using the ideal hardware you've specified (Snapdragon-based). With Regards!
€2.500 EUR em 32 dias
6,3
6,3

Hi I will be able to help you. Can we have detail technical discussion? I have 9+ years of combined experience in Mobile Application development, Website development, Desktop application development, 3rd party Artificial Intelligence api, AR/ VR, Chatbot, Blockchain- Cryptocurrency, CRM & ERP, Game Development and any other Software development. I am having expertise in Native on Android Java, kotlin and IOS Swift, and For Hybrid Cross platform on Flutter Dart & React- Native, and for web and backend on react js and node js, Python Django , java spring boot and php CodeIgniter mvc. Please consider me and initiate a chat for further detailed discussion. Regards, Anju
€2.000 EUR em 30 dias
6,6
6,6

Hi I have strong experience with low-level Android development and understand the complexity of building a rooted Qualcomm-based app that interacts directly with modem behavior rather than using standard Android telephony APIs. The main technical challenge here is safely applying RAT, band, channel, and cell-parameter locks through NV item or DIAG/QCRIL-level communication without causing unstable modem states or device-specific incompatibilities. I would approach this by building a native Android application with a controlled root-access layer, vendor-aware command handling, and a modular lock engine for GSM, UMTS, LTE, and 5G NR parameters. The implementation would focus on clean separation between the UI, root execution layer, and modem command logic so the codebase remains maintainable and extendable. I can also incorporate validation, rollback handling, and detailed logging to make lock operations safer on real Qualcomm hardware. My background with Android internals, rooted-device workflows, shell-level execution, and telecom-oriented system control fits well with this kind of hardware-level utility. I can deliver clean, commented source code and documentation structured for real-device testing and future extension. Thanks, Hercules
€3.000 EUR em 15 dias
6,4
6,4

Hello, I hope you are doing well. I understand that you are looking to build a MOBILE APPLICATION and I would be happy to help. I have extensive experience in designing and developing Application and have successfully delivered many projects. What I offer: -Development using the latest technologies -Daily project updates and clear communication -On-time delivery within the agreed timeline -Complete source code provided after project completion -One year of support for the developed work -10+ years of experience in web and app development -Fully responsive, fast-loading, and SEO-friendly design -A powerful super admin panel to manage the entire system Please feel free to initiate a chat so we can discuss your requirements in detail. Thank you and regards, Dheeraj K.
€1.500 EUR em 12 dias
7,0
7,0

As an experienced android developer with over a decade of experience, I have honed my skills and knowledge in working with complex systems such as Qualcomm modems, particularly their low-level interfaces like NV items. My proficiency in rooted Android development, NCRIL and AT commands have instilled in me the ability manipulate NV items to exercise hardware control, making your project right up my alley. Web Crest also brings extensive experience with Qualcomm-based devices, making it possible for me to implement and test your application on real Snapdragon hardware. This will ensure not just quality but also accountability - two values that I hold very high in every project I work on. This is complemented by our commitment to delivering clean and commented code, well-documented projects, and a thorough after-development support plan. Lastly, what sets Web Crest apart is not just our ability to build powerful digital products but also our aim to build impactful and scalable solutions. We don't just focus on immediate needs but also look towards the future, ensuring that the systems we design can grow alongside your business. With Web Crest, you won't just be hiring a team of developers; you'll be forging a long-term technology partnership that will drive your business forward.
€2.000 EUR em 7 dias
6,5
6,5

Dear Client, With over a decade's worth of experience in Mobile App Development, rooted Android development, and specifically, Qualcomm RIL and NV item manipulation on Android, my team and I have a profound grasp of the integral skills required for this project. We are well-versed in communicating with modems via low-level interfaces like QCRIL / AT commands. In addition to this unique skill set, we boast a robust understanding of cellular network fundamentals which is tailor-made for your project needs. Our ability to lock devices to specific network parameters such as technology, band, channel, and cell identifier will be amplified when combined with our existing knowledge of rooted Android development. Moreover, we have access to real Qualcomm hardware running Snapdragon-based devices, ensuring that our testing grounds reflect the platforms on which the actual application will be deployed. Given our thorough approach marked by an emphasis on clean commented source code and a clear documentation process, selecting us for this crucial task would ensure that you receive not only a functioning APK but also the knowledge on how to use and extend this tool. In short, let's augment your project goals together!!!! Thank you!!!
€2.500 EUR em 15 dias
6,1
6,1

Hi There!!! ★★★★ ( Project goal is to build a Qualcomm modem control app for Android ) ★★★★ I understand you need a native Android app for Qualcomm-based devices that, with root access, controls network selection via NV Items. It should support technology, band, channel, and cell locks for GSM/UMTS/LTE/5G. ⚜ Rooted Android app development ⚜ Qualcomm modem NV item interaction (QCRIL / AT commands) ⚜ Technology, band, channel, and cell locking ⚜ Clean, commented source code delivery ⚜ APK build with full functionality ⚜ Testing on real Snapdragon devices ⚜ Documentation for usage and extension I have experience with Qualcomm RIL, rooted Android tools, and network-level controls. I focus on reliability, safety, and user-friendly interfaces for advanced telecom apps. I’ll develop using Java/Kotlin with NV Item manipulation, test thoroughly on real devices, and ensure stable, extensible code. Happy to discuss details and start promptly. Warm Regards, Farhin B.
€1.515 EUR em 15 dias
6,6
6,6

⭐⭐⭐⭐⭐ Create Native Android App for Network Selection on Qualcomm Devices ❇️ Hi My Friend, I hope you're doing well. I reviewed your project and see you are looking for an experienced Android developer. You don't need to look any further; Zohaib is here to help you! My team has completed over 50 projects related to Android development. I will create a native app that controls cellular network selection using NV Items, ensuring it runs smoothly on rooted Qualcomm devices. ➡️ Why Me? I can easily build your Android application as I have 5 years of experience in Android development, focusing on Qualcomm modem internals, NV item manipulation, and cellular network fundamentals. My expertise spans rooted Android development and working with QCRIL/AT commands. Additionally, I have a strong grip on testing with real Qualcomm hardware, ensuring the app meets all your requirements. ➡️ Let's have a quick chat to discuss your project in detail and allow me to show you samples of my previous work. I'm looking forward to our conversation! ➡️ Skills & Experience: ✅ Android Development ✅ Qualcomm Modem Internals ✅ NV Item Manipulation ✅ Rooted Android Solutions ✅ QCRIL/AT Commands ✅ Cellular Network Fundamentals ✅ APK Development ✅ Clean Code Practices ✅ Documentation Writing ✅ Testing on Qualcomm Devices ✅ User Interface Design ✅ Problem-Solving Skills Waiting for your response! Best Regards, Zohaib Waiting for your Response!
€1.800 EUR em 2 dias
6,3
6,3

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