Tag Archives: Apple

Unlock iPhone 4s using SAM

Finally i have unlocked the iPhone 4s which Tinyan got it from her uncle about half a year ago. Thanks Steve for letting me know this solution. It unlocks a jailbroken iPhone 4 or iPhone 4s using SAM(Subscriber Artificial Module) which is written by Sam Bingner and it is confirmed by the MuscleNerd of iPhone Dev Team.

You can find the unlock procedures in the following 2 posts.


I tried a few times by following the above steps but no luck. Whenever i connect the iPhone 4s to iTunes in the final step, iTunes always returned that the phone cannot be activated.

Finally, i follow the screencast made by Jeff Benjamin from iDownloadBlog and suddenly the signal bar appears.
Continue reading Unlock iPhone 4s using SAM

iTunes – Create .caf File

The AVAudioRecorder creates .caf format file in my next iPhone Application. so what is .caf file?

Core Audio Format (.caf) is a audio file container developed by Apple for audio files. A .caf file can contains different audio file formats just like .mov container for different video formats.

The post shows you how to convert the following file extensions to .caf using iTunes. Continue reading iTunes – Create .caf File


最近在公司拿了一本書看,書名叫做《矽谷大革命》,英文書名是《REVOLUTION In the VALLEY》,作者係Andy Hertzfeld。

Andy係麥金塔(Mac機)開發早期的軟件工程師,書中描述他在Apple工作時的所見所聞與工作點滴,其它當年曾在Apple工作的員工也有在書中補充了很多不同的資訊。如你有興趣了解Apple當年的文化和歷史,此書絕對值得一看。令我最深刻的是作者對Steve Jobs的描繪,看過之後你就會知道他擁有的神奇力量,就連作者和其它Apple裡面出色的員工都無力抵抗…

Folklore.org: Macintosh Stories/