iPhone 3.1.2 Update Hints and Reminders

By Thomas Steiner. Written on Wed Jan 06 2010. Technical

iPhone 3.1.2 Update Hints and Reminders

I have taken the small, but still important step from iPhone 3.1 to iPhone 3.1.2 (mostly important because of the fix of the coma mode bug, iPhone OS 3.1.2 Changelog). My previous manual tweaks after a firmware update list has saved me a great amount of time for this task.

I decided to buy PkgBackup, and it saved most of my Cydia packages, however, I lost some files, mainly because I did not pay enough attention. Thus adding to the list two stupid reminders:

Things to keep in mind

Backup Cycorder videos
```
/var/mobile/Media/Videos
```
Backup MxTube videos
```
/var/mobile/Media/MxTube
```

Additional manual tweaks

Delete annoying UI sound files:
- Camera shutter sound
```
/System/Library/Audio/UISounds/photoShutter.caf
```
- Keyboard click sound (because Cydia keyboard still clicks even if clicks are disabled)
```
/System/Library/Audio/UISounds/Tock.caf
```
- Charging sound / plug-in sound
```
/System/Library/Audio/UISounds/beep-beep.caf
```
Enable EDGE / APN Settings (just because it's possible): http://www.simonblog.com/2009/09/07/how-to-enable-edgeapn-editing-on-jailbroken-iphone/
Enable iPhone 3G Tethering (obviously do this at your own risk): http://thebeatmix.blogspot.com/2009/10/enable-tethering-on-iphone-312-only-3g.html

What are your iPhone update stories? Did I miss something?

Update 1

The missing carrier logo bug can be fixed by accessing

/var/mobile/Library/Carrier Bundle.bundle ## symbolic link

Then edit

carrier.plist

Search for

<key>StatusBarImages</key>

<array>

  <dict>

    <key>AllowPrefixMatching</key>

    <true/>

    <key>CarrierName</key>

    <string>T-Mobile</string>

    […]

</array>

and delete the plaintext carrier name (in my example "T-Mobile"). You should end up with

    <key>CarrierName</key>

    <string></string>