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54 lines
2.2 KiB
Markdown
54 lines
2.2 KiB
Markdown
---
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title: Tips & Tricks for the iPhone
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layout: default
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created: 2009-05-05 00:54:50 +0200
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updated: 2010-04-20 23:56:17 +0200
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toc: false
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tags:
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- know-how
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- hardware
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- apple
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- iphone
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- tipsntricks
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---
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Mark mail as unread
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===================
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There's a somewhat hidden way to mark messages as "unread" in the mail app: When viewing a mail,
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touch the **Details** link in the upper right. Then find the **Mark as unread** link below the subject.
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Access Network Monitor
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======================
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If you like to see the reception status of all the cells you're receiving, type the following code on
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the dialpad and press the dial button: **`*3001#12345#*`**
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Recover from Recovery Mode loop
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===============================
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If you try to update the firmware, you might be stuck in the *"Connect to iTunes"*-recovery mode although you didn't
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change any bit of the firmware (e.g. because of some freakin' errors of iTunes). You now have the choice between a
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long firmware+backup restore - or get your iPhone back running in about 30 seconds. The procedure is described
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at [ihackintosh.com](http://www.ihackintosh.com/2009/09/recover-iphone-3gs-from-apple-logo-or-recovery-mode-loop/). Do
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yourself a favor and **don't try it in Windows**. Installing `libusb` there broke something and after a reboot of
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Windows, all USB devices didn't work and hat yellow exclamation marks in the Windows device manager. Under Linux,
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it's easy as pie. These instructions are for Ubuntu:
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- get [iRecovery](http://github.com/westbaer/irecovery) source code and install [build-essential](apt://build-essential) as well as [libusb-dev](apt://libusb-dev)
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- compile *iRecovery*
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- get the iPhone into recovery mode:
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* switch it completely off, disconnect all cables
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* hold down the ▢ Home button
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* keep the button down while connecting it to the PC
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* wait until the *"Connect to iTunes"* logo appears, then release the ▢ Home button
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- now run: `./irecovery -s`
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- wait for the prompt (`]`) and enter the following commands: (if `fsboot` doesn't do anything, type `reboot`)
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{% highlight text %}
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] setenv auto-boot true
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] saveenv
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] fsboot
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{% endhighlight %}
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- your iPhone should now boot normally
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