Backtracking to iPhone OS 3.0

Has this happened to anyone else?
I got a notification recommending I let apple automatically upgrade the software on my iPhone, so I clicked yes.  This replaced OS 3.0 with OS 3.1.3.  Unfortunately, now xCode won't let me install or debug programs on the iPhone because it can't handle this OS version, and it prompts me with a list of OS versions it DOES support, which includes 3.0.
So I want to restore my iPhone to OS 3.0 but I can't find a place on the apple website to do this.  Anyone got any ideas?

Views: 81

Replies to This Discussion

Permalink Reply by Mauricio Tavares on February 17, 2010 at 10:06am
Permalink Reply by Kevin Neelands on February 17, 2010 at 10:37am
Thanks, I'll give that a shot.

Mauricio Tavares said:

RSS

Happy 10th year, JCertif!

Notes

Welcome to Codetown!

Codetown is a social network. It's got blogs, forums, groups, personal pages and more! You might think of Codetown as a funky camper van with lots of compartments for your stuff and a great multimedia system, too! Best of all, Codetown has room for all of your friends.

When you create a profile for yourself you get a personal page automatically. That's where you can be creative and do your own thing. People who want to get to know you will click on your name or picture and…
Continue

Created by Michael Levin Dec 18, 2008 at 6:56pm. Last updated by Michael Levin May 4, 2018.

Looking for Jobs or Staff?

Check out the Codetown Jobs group.

 

Enjoy the site? Support Codetown with your donation.



InfoQ Reading List

QCon San Francisco 2026: 12 Tracks Announced

The 12 tracks for QCon San Francisco 2026 (November 16-20) are now live. Four tracks cover AI in production. The other eight cover the rest of what senior engineering still demands: distributed systems, architecture teardowns, resilience, platform internals, API design, and Staff+ leadership. Early bird pricing runs until May 12th.

By Artenisa Chatziou

Uber Migrates 75,000+ Test Classes from Junit 4 to Junit 5 Using Automated Code Transformation

Uber engineers migrated over 75,000 test classes from JUnit 4 to JUnit 5 using automated code transformation with OpenRewrite and internal orchestration. By enabling the JUnit Platform for dual execution with Bazel and validating changes through CI, the team modernized testing infrastructure while maintaining correctness at monorepo scale.

By Leela Kumili

Presentation: Building a Future-Proof Observability Platform to Empower Engineers

Wayne Bell and Dan Gomez Blanco discuss the architectural and cultural shift required to scale observability at Skyscanner. They share how moving to OpenTelemetry decoupled instrumentation from vendors, and explain why treating a platform as a product - with engineers as customers - is the key to reducing incident rates and eliminating technical debt across 800+ microservices.

By Dan Gomez Blanco, Wayne Bell

Podcast: A Java Performance Quest: Taming Unsafe Code, Embracing Idiomatic Style & Debugging the Linux Kernel

In this podcast, Jaromir Hamala, a seasoned Java engineer specialising in high-throughput data systems, shares his thoughts on how developers can tackle high-performance software development. He touches on the benefits of modern Java that allow writing idiomatic Java code while remaining "mechanically sympathetic", and also on his experience debugging a Linux kernel bug.

By Jaromir Hamala

Article: MCP in the Java World: Bringing Architectural Strategy to LLM Integrations

Discover how the Model Context Protocol (MCP) Java SDK is establishing a new architectural discipline for enterprise LLM integrations. By defining explicit contracts and leveraging MCP servers as anti-corruption layers, it ensures governance, loose coupling, and security alignment with the JVM ecosystem and existing operational practices, moving integrations beyond fragility to resilience.

By Matteo Rossi

© 2026   Created by Michael Levin.   Powered by

Badges  |  Report an Issue  |  Terms of Service