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I’m dealing with an Android-only application that suddenly locked me out: the user IDs are no longer recognised and the usual password-recovery flow fails. I need someone to trace the root cause and restore full access. The job involves: • Inspecting the current login and recovery logic (server side and client side). • Fixing whatever prevents IDs and passwords from being validated or reset. • Making sure the solution works on typical Android versions without introducing new crashes or security gaps. Please deliver clear steps or updated code so I can reproduce the fix in future releases.
Project ID: 40490923
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Active 2 days ago
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58 freelancers are bidding on average $36 USD/hour for this job

Hi there, It seems your app's core authentication workflow has broken. The system fails to validate user IDs, and the password reset path is also non-functional. This points to a potential issue in the server-side API logic that handles credential validation or the token lifecycle for password resets, effectively locking users out. Technical approach: I'll start by setting up a debug build to trace the network traffic between the app and your server during login and recovery attempts. By analyzing the API requests and server responses (e.g., HTTP status codes, error messages), I can quickly isolate the point of failure, whether it's in the client-side request formation or the backend validation logic. Core modules: My focus will be on troubleshooting two key workflows: the primary user authentication sequence (credential check) and the password reset lifecycle (token generation, delivery, and validation). Relevant systems: We have extensive experience debugging and building secure auth systems for native Android apps. Our work on an "Encrypted Chat Application Suite" (Native Android, E2E) and the "CoreWipe" security app involved implementing and securing robust user authentication and session management from the ground up. My process is to replicate the bug, isolate the root cause, implement a precise fix, and test for regressions. I will deliver the updated code along with a clear explanation of the solution. Regards, Rohit
$25 USD in 3 days
8.1
8.1

Login lockouts triggered by broken validation logic are frustrating to debug but almost always traceable to a specific failure point in the auth flow. The concern here is both client side recognition of user IDs and a recovery flow that silently fails, which points to either a token mismatch, backend validation regression, or a corrupted credential store. I have diagnosed similar Android auth breakdowns, tracing issues through server side session handling and client side storage to isolate exactly where validation collapses. I document every fix with reproducible steps so future releases stay clean. Clients consistently say communication is clear and timelines are respected. Ready to look at the login and recovery logic whenever you are. Regards, Anne S.
$35 USD in 7 days
6.3
6.3

Hi , i can look into it today and let you know where it all went wrong , i have an extensive experience and i have worked in plenty of projects for the past 5 years , send me a message and let’s discuss further
$30 USD in 40 days
6.1
6.1

Hi, I've got a decade of experience working with complex Android applications, and I’m confident I can resolve the issue you're facing. Here’s what I plan to do: 1. Server-side Inspection: I’ll review your server-side login and recovery logic to ensure there are no backend issues. 2. Client-side Analysis: I’ll thoroughly examine the client-side code for any bugs or misconfigurations that might be causing the ID validation failures. 3. Fixing Validation Issues: Once identified, I'll implement the necessary fixes to restore proper user authentication and password recovery functions. 4. Testing Across Android Versions: To ensure compatibility, I’ll test the solution on a range of typical Android versions, ensuring no new crashes or security vulnerabilities are introduced. 5. Documentation: After resolution, I will provide detailed steps or updated code snippets so you can reproduce the fix in future releases. Please check my portfolio for references: https://www.freelancer.com/u/reedsystems Looking forward to working with you!
$35 USD in 5 days
5.9
5.9

Hi, I came across your project "Android App Account Troubleshooting" and I'm confident I can help you with it. About Me: I'm a full stack developer and agency owner with over 8+ years of experience in Mobile App Development, Android, Android App Development, Android Studio. , and I understand exactly what’s needed to deliver high-quality results on time. Why Choose Me? - ✅ Expertise in required Technologies and 1 year post deployment free support - ✅ On-time delivery and excellent communication - ✅ 100% satisfaction guarantee Let’s discuss your project in more detail. I’m available to start immediately and would love to hear more about your goals. Looking forward to working with you! Best regards, Deepak
$34 USD in 40 days
5.2
5.2

As an experienced Full Stack Developer and Digital Solutions Expert, I have the technical proficiency, strategic thinking and problem-solving skills necessary to resolve your Android app account troubles. In my 10+ years of experience, I've solved similar challenges through my deep understanding of Java_ one of my prime skills, which I believe would be instrumental in identifying and fixing the root cause of your server-side and client-side issue. Furthermore, my adeptness in working with different Android versions ensures I can design a solution that won’t introduce new crashes or security gaps for you in the short run. Beyond steering clear of immediate issues, I'm committed to providing long-lasting fixes. Hence, part of this edition will include clear steps or updated code that allows reproducibility of the solution in future updates. To conclude, my solid track record of 100+ successful projects is proof that I deliver scalable and secure solutions - precisely what your project demands. You need a professional who not only rectifies the current log-in inconsistencies but also extends ongoing support to avoid future contingencies, and that's precisely what I intend
$25 USD in 40 days
4.9
4.9

This looks like a great fit, We will trace the login failure, fix the ID validation and password recovery flow, and restore full access to your Android app. First step is checking API responses and token handling. Often a silent token expiry or a backend auth config change causes valid IDs to fail without a clear error. A couple of quick things to confirm: 1) Do you have access to the server/backend, or is this a third-party app? 2) Which Android versions are you testing on? The number quoted here is a starting estimate. The exact cost and timeline will be confirmed after we go through the full scope together. Looking forward to your response. Best regards, Faizan
$34 USD in 40 days
4.9
4.9

As an experienced mobile app developer with a strong focus on Android, I'm confident I can effectively troubleshoot and fix the account access issue you are facing. In over a decade in this industry, I've honed my skills to effectively diagnose complex issues and provide practical solutions. What sets me apart is my focus on creating sustainable and scalable code that eliminates technical debt while supporting your growth and user retention. With me, you don't just get a quick fix, but a lasting solution that won't introduce new crashes or security gaps. Apart from my technical skills, my excellent communication and project management abilities have always helped me deliver projects successfully - on-time and within budget. Let's discuss your vision in detail and chart out a way forward to restore full-access to your app permanently while maintaining data integrity and security.
$38 USD in 40 days
5.2
5.2

Hi there, With 4 years of experience in Android development and backend systems (Python, Node.js, Spring Boot), I can investigate both the client-side and server-side authentication flow to identify why user IDs and password recovery are failing. I’ll trace the root cause, implement a secure fix, and verify the login and reset process across supported Android versions without introducing regressions. You’ll receive updated code, clear documentation of the issue, and reproducible steps to prevent the problem in future releases.
$25 USD in 40 days
4.4
4.4

Hello there , Good afternoon! I’ve carefully checked your requirements and really interested in this job. I’m full stack node.js 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 Kotlin, Mobile App Development, Debugging, Android, Android SDK, Java, Android App Development and Android Studio. For more information about me, please refer to my portfolios. I’m ready to discuss your project and start immediately. Looking forward to hearing you back and discussing all details.. If you have any questions, please let us know
$50 USD in 37 days
3.9
3.9

Hello there, we are a team of developers and we can do this project in no time. Thanks Ashish Kumar.
$38 USD in 40 days
3.7
3.7

With my solid knowledge and extensive experience in both Android and Java, I am certain I can help you regain access to your locked-out Android app. My expertise spans all aspects of Android app development, from the client-side to the server-side. I will meticulously investigate every layer of the login and recovery logic, leaving no stone unturned until the root cause is traced and remedied. In addition to my proficiency in APIs, my comprehensive grasp of the Android ecosystem encompasses a deep understanding of various versions, ensuring your solution functions seamlessly on typical Android platforms, without introducing further crashes or security vulnerabilities. Rest assured, I will deliver a comprehensive report with clear steps and updated code so that you'll have no trouble implementing the fix even in future releases. But perhaps what really differentiates me from others is my unwavering commitment to delivering above and beyond client expectations. For me, it's not just about code but also about creating meaningful solutions that have a positive impact. Let me apply my in-depth understanding of Android, proficiency in Java, and commitment to excellence to help you overcome this challenge successfully. With me on board, consider your access restored!
$25 USD in 40 days
3.4
3.4

Hello, I have experience with Android applications, particularly in implementing robust user authentication and recovery flows in e-commerce platforms and booking systems. I can analyze the current login and recovery logic, ensuring user IDs and passwords are validated properly while preventing crashes or security vulnerabilities on typical Android versions. One approach could involve enhancing the password recovery mechanism by implementing a secure token-based system to streamline the process. Let's discuss!
$30 USD in 40 days
3.3
3.3

As an experienced Android developer, troubleshooting and debugging is second nature to me. I've spent years solving complex technical issues just like yours, whether it's on the server side or client side. Your application's frustrating login issue is something I have both the patience and skillset for. I understand the urgency of restoring your access and can assure you of a thorough approach where I'll leave no stone unturned. My proficiency in Java combined with my sound knowledge of Android app development allows me to dive deep into existing codes, identifying potential issues, and coming up with tailored solutions that work seamlessly across multiple versions. Moreover, I want to be clear that I don't just 'fix and run'. My work style revolves around empowering my clients to reproduce their solutions in the future without my assistance. I will deliver not just updated, efficient code but also provide you with clear steps on how to maintain and troubleshoot your app when needed. Collaborating with me means securing a long-term partnership built on trust, solid execution, and open communication. Let's get this issue resolved together!
$38 USD in 40 days
3.5
3.5

Hello, I’m Karthik from Resonite Tech, with 15+ years of experience in Android development, Java, Kotlin, API integration, and application troubleshooting. I can help identify the root cause of your login and password recovery issues and restore reliable account access. ✔ Analyze Android app login and authentication flow ✔ Review server-side APIs and database validation logic ✔ Debug password reset and account recovery functionality ✔ Identify issues with user ID recognition and session handling ✔ Fix bugs without impacting app security or stability ✔ Test across multiple Android versions and devices ✔ Provide documented fixes and implementation steps for future releases I have extensive experience troubleshooting authentication, API, database, and user management issues in Android applications and can quickly isolate whether the problem originates from the app, backend, database, or third-party services. Happy to review the codebase, logs, and API responses to get this resolved efficiently. Best Regards, Karthik B Resonite Tech
$48 USD in 40 days
3.1
3.1

⭐⭐⭐->Hi, there<-⭐⭐⭐ It sounds like you are in a frustrating situation with your Android application being locked out. Restoring full access is crucial for user satisfaction and the success of your app. I believe the key to this project is not just fixing the login issue, but ensuring a seamless user experience by addressing the root cause effectively. I prioritize quality over price. I also wish to negotiate the price during our conversation. Guaranteed on-time delivery & 100% satisfaction! To tackle this challenge, I will carefully inspect the current login and recovery logic on both server and client sides. By identifying and fixing the issues preventing user IDs and passwords from being validated or reset, I will ensure a robust solution that works seamlessly across various Android versions without compromising security. In addition to resolving the immediate issue, I will provide clear steps or updated code for you to reproduce the fix in future releases, ensuring long-term stability and ease of maintenance. I would like to discuss the assignment in our conversation. Thank you for your time. If you don't mind, please reach out to me. Best regards
$25 USD in 40 days
1.4
1.4

Auth lockouts in Android apps usually trace to token expiry, session store corruption, or backend validation mismatch — patterns we've debugged in Kotlin apps before. We'd trace the full auth flow: logcat output, backend logs, and the password-reset sequence to pinpoint where validation fails. Once found, we'll fix both client-side and server-side logic and document it clearly so you can replicate the fix in future releases. Ping me and we can get started right away.
$38 USD in 20 days
1.5
1.5

Hello, I hope you’re doing well. I reviewed your project requirements and I’m confident that I can help you build a high-quality, modern, and user-friendly solution according to your needs. Android App Account Troubleshooting I’m Ankur, a Full Stack Developer with 7+ years of experience in: • Custom Website Development • E-commerce Development • Mobile App Development • Flutter App Development • Android & iOS Applications • WordPress & PHP Development • UI/UX Design • Admin Panels & APIs I have successfully completed 500+ projects for startups, businesses, and individual clients worldwide. Why work with me? ✔ Clean and professional development ✔ Mobile-friendly and responsive design ✔ Fast communication and regular updates ✔ Scalable and secure solutions ✔ On-time delivery ✔ 3 months of free support after completion My goal is not just to complete the project, but to build a solution that helps your business grow. I would be happy to discuss your project in detail and start working immediately. Looking
$95 USD in 45 days
0.2
0.2

The immediate challenge lies in diagnosing the breakdown of the authentication mechanisms in your Android application. A thorough inspection of both the client and server-side code is essential to identify why user IDs are unrecognized and the password recovery process is failing. We will meticulously analyze the logic to pinpoint vulnerabilities or flaws that prevent successful validation. Ensuring compatibility across typical Android versions while safeguarding against crashes and security vulnerabilities is paramount. I can provide clear documentation and updated code to facilitate future reproductions. Initial insights can be ready in 3 days. When can we start? I can have something to show you within 24 hours.
$28 USD in 40 days
0.0
0.0

Hi,\n\nI’m Sean, an AI & Full-Stack Developer with over 10 years of experience in mobile app development, including extensive work with Android applications. I understand that you're currently locked out of your Android app due to user IDs not being recognized and issues with password recovery.\n\nIn a previous project, I resolved a similar login issue for an app facing user authentication failures by meticulously inspecting the server-side and client-side logic to identify flaws in user ID validation. My technical proficiency in Kotlin and Android SDK, combined with a focus on secure coding practices, will enable me to effectively diagnose and fix the core problems your application is facing.\n\nI will ensure that the solutions I provide work across typical Android versions, maintain stability, and include clear documentation on the fixes implemented, allowing for easy reproduction in future releases. I anticipate delivering the initial fixes within the week. What specific user feedback have you received regarding the lockout issue?\n\nBest regards,\nSean
$50 USD in 2 days
0.0
0.0

Mathura, India
Member since Jun 4, 2026
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