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My Android and iOS devices are facing three persistent software problems—rapid battery drain / erratic charging, failure to power on, and recurring app crashes. On top of resolving those issues, I also need help refining an existing cross-platform app so it runs faster, crashes less, and follows current store guidelines. Here is what I’m aiming for: • Diagnose the root cause of each device symptom and apply a permanent software-level fix. • Optimise battery performance and charging logic without compromising features. • Recover any phone that will not boot because of firmware or OS corruption. • Stabilise my current app’s codebase, update dependencies, and improve UI responsiveness on both Android (Kotlin/Java) and iOS (Swift/Objective-C). • Return clean, well-documented source code and a short report of the changes so future maintenance is straightforward. Please tell me about similar troubleshooting you have completed, the mobile tools or frameworks you prefer (ADB, Android Studio, Xcode, Crashlytics, etc.), and the average turnaround time I can expect. Clear communication and timely delivery will be key to success on this project.
ID do Projeto: 40129587
14 propostas
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Ativo há 21 dias
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14 freelancers estão ofertando em média $7 USD/hora for esse trabalho

Hi I have read your requirements and I am sure I will be able to help you. Please message me so that we will have detail technical discussion. I have 9+ years of combined experience in Mobile Application development in Native on Android Java, kotlin and IOS Swift, and For Hybrid Cross platform on Flutter Dart and for web and backend on react js and node js, Python Django, Power BI, Scikit-learn, Data Science AI ML, PyTorch, TensorFlow, SparkML , java spring boot and php CodeIgniter mvc. Please consider me and initiate a chat for further detailed discussion. Regards, Anju
$5 USD em 40 dias
6,5
6,5

Hello Client, Greeting of the day!!!! I read your job description I have sound of five years plus experience in App development. I have been DEVELOPED 35+ Apps, three taxi apps, Two socials apps and restaurant apps based on GPS location and notification functionality and based on different domain like sports, Health, GYM, personal business and social etc I have testing team for testing apps. I think I am strongest person for doing this job and provide the quality product with testing. I am always available for your support. Thanks Sr. Mobile Developer
$2 USD em 40 dias
6,7
6,7

You need two tracks handled in parallel: software level diagnosis and recovery for Android and iOS devices, plus stabilization and performance work on your cross platform app to reduce crashes and meet current store expectations. → Device troubleshooting and recovery . Battery drain and erratic charging analysis using battery stats, power logs, and app wake lock checks . Crash and freeze root cause isolation via system logs and safe mode style testing . Non booting device recovery using firmware restore, bootloader recovery, and verified clean OS reflash where possible → App stabilization and performance . Crash triage using Crashlytics or native logs, then fix highest impact issues first . Dependency updates and build cleanup to remove deprecated APIs and store policy risks . Performance profiling for slow screens, heavy renders, and network bottlenecks . UI responsiveness improvements and safer state handling across platforms → Tools I use . Android Studio, ADB, Logcat, Battery Historian, profiler tools . Xcode, Instruments, device console logs, TestFlight crash reports → Delivery . Clean documented commits and a short change report . Repro steps, fixes applied, and verification checklist for each issue → Turnaround . Initial diagnosis results in 24 to 48 hours after access to devices logs and app repo . Fix cycle typically 3 to 7 days depending on severity and number of crash sources Best regards, Abdul Hadi Mobile App Troubleshooting and Optimization Developer
$5 USD em 40 dias
5,9
5,9

Hi! I understand you’re dealing with both device-level software issues—battery drain, charging instability, boot failures—and a cross-platform app that needs stabilization and performance tuning. I’ve handled deep mobile troubleshooting using ADB, Android Studio, Xcode, and Crashlytics, from diagnosing firmware/OS corruption to reducing crashes and optimizing battery usage at the code level. I can also refactor and update your existing Android and iOS app to improve speed, stability, and store compliance, with clear documentation and a concise handover report. You’ll get practical fixes, not temporary workarounds. Looking forward for your positive response in the chatbox. Best Regards, Hassan H
$5 USD em 40 dias
4,4
4,4

I understand the frustration of hardware-level symptoms caused by software inefficiencies. I specialize in deep-system diagnostics and codebase stabilization, using the full suite of mobile development tools to recover bricked devices and optimize underperforming applications. How I Will Solve Your Technical Challenges: Device Recovery & Battery Logic: I use ADB (Android Debug Bridge) and Xcode Instruments to identify rogue background processes and kernel-level wakes causing drain. For non-booting devices, I perform firmware restoration via fastboot or DFU mode to resolve OS corruption. App Stabilization: I will integrate Firebase Crashlytics to pinpoint the exact line of code causing recurring crashes. By updating dependencies and refactoring heavy UI threads, I’ll improve the responsiveness of your Kotlin and Swift codebases. Store Compliance: I will audit your app against the latest Google Play and Apple App Store guidelines, ensuring all permissions and SDKs are up to date. My work on the Satocci Native App demonstrates my ability to maintain high-performance, compliant mobile software. Documentation: You will receive a "Health Report" ranking every fix by impact, similar to the maintenance roadmaps I provided for Anm Didi. Technical Toolkit: Diagnostics: ADB, Xcode Instruments, Fastboot. Development: Android Studio, Xcode. Monitoring: Crashlytics, Postman Turnaround Time: I estimate 5–7 days for device diagnostics and the initial app stabilization sprint.
$8 USD em 40 dias
4,2
4,2

Hi, We offer expert mobile troubleshooting and app optimization across Android and iOS, handling deep software diagnostics, boot and firmware recovery, battery and charging logic optimization, and crash resolution. We also specialize in stabilizing cross-platform and native apps by refactoring code, updating dependencies, improving UI responsiveness, and aligning with store guidelines delivering clean source code, clear documentation, and a structured improvement report for easy future maintenance. Looking forward to hearing back from you. With Regards, Raghav, BLW TECH
$20 USD em 40 dias
2,4
2,4

This project suits my speciality perfectly. Diagnosing and resolving persistent device issues like rapid battery drain, erratic charging, and app crashes while refining a cross-platform app to be clean, professional, user-friendly, seamless, integrated, and automated aligns exactly with my skills. I bring extensive experience in mobile troubleshooting and development using ADB, Android Studio, Xcode, and Crashlytics. I excel at optimizing performance, stabilizing codebases, and delivering well-documented, maintainable solutions. While I am new to Freelancer, I have tons of experience and have done other projects off site and I am willing to handle this project at a good rate in return for a good review when satisfied. Lets talk business and I get it done the right way Regards, Helgard Aucamp Digital Forge
$6 USD em 14 dias
0,0
0,0

With my strong background in computer engineering, software design, and development experience in both backend and frontend technologies, I have gained the ability to diagnose the root cause of complex problems efficiently. In fact, your project brings back memories of similar mobile troubleshooting I've tackled before. For instance, I was instrumental in resolving a persistent battery drain issue for a client, who praised my ability to optimize battery performance without sacrificing features. This proves that I can effectively address all three of your device symptoms. In terms of enhancing your app's performance and stability, I am well-versed in modern tools such as ADB, Android Studio, Xcode, and Crashlytics that are best suited for cross-platform development on Android (Kotlin/Java) and iOS (Swift/Objective-C). Plus, my comprehensive knowledge of data structures and system design fundamentals ensures that the changes I deliver won't just be quick fixes but sturdy improvements that align with current store guidelines. Timely communication is vital for a project's success, and you can count on me to keep you in the loop at each stage of the project. With my strong commitment to quality work and timely delivery, your clean codebase and well-documented solution will be in your hands sooner than you think. So let's work together to not just fix your current issues but create a more robust and seamless mobile experience moving forward.
$5 USD em 40 dias
0,0
0,0

I can be best fit to your need , having multiple real production grade experience in mobile app development and backend and database design ,
$7 USD em 40 dias
0,0
0,0

Hello, I have 4+ years of experience working with Android and iOS systems as well as mobile app stabilization and performance optimization. I can diagnose and fix software-level issues such as battery drain, charging instability, boot failures due to OS/firmware corruption, and recurring app crashes. I regularly work with ADB, Android Studio, Xcode, Crashlytics, logs, and profiling tools to identify root causes and apply permanent fixes, not temporary workarounds. I can also refactor and optimize your existing cross-platform app to improve performance, stability, and store compliance. What I’ll deliver: • Clear diagnosis & permanent software fixes • Battery and performance optimization • Boot recovery (OS/firmware-level) • Crash reduction & dependency updates • Clean code + short technical report Turnaround: Initial diagnosis within 1–2 days, fixes shortly after depending on findings. Ready to start immediately with clear communication throughout. Regards, Tushar Vijayvargiya
$5 USD em 40 dias
0,0
0,0

Gojra, Pakistan
Membro desde jan. 7, 2026
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