Files that required when doing jailbreak and unlock:
1) iPhone 3G iOS4 firmware, download as below:

iOS 4 GM seed – iPhone 3G, 292.3MB

• MultiUpload (direct)
• MegaUpload
• Hotfile
• Zshare
• Badongo
• Uploading

2) Redsn0w 0.9.5 beta 5-3, download as below:

• Mac OSX (x86)
• Windows

Jailbreak Steps:
0) BACKUP your DATA on iPhone before proceed further!
1) Restore(in iTunes, press shift+Restore button, look for the iOS4 ipsw files, and click OK) your iPhone 3G to iOS4.
2) Run “redsn0w.exe”, which extracted from the downloaded redsn0w zip file.
3) Select the iOS4 ipsw file, which you used to restore you iPhone 3G just now.
4) Select the options that you would like to enable in the Redsn0w Jailbreak process.
- Recommanded:
— Install Cydia
— Enable multitasking
— Enable homescreen wallpaper
— Enable battery percentage

5) Connect your iPhone 3G to the USB cable, which connected to your PC, switch off your iPhone 3G (press top power button until “slide to power off” message appeared, then slide to power off.). Click NEXT after you done these.
6) Follow instruction on screen:
- Hold down top power button of your iPhone 3G, DON’T release!
- Without releasing power button, hold down Home button for 10 sec (now you know why I ask you not to release the power button).
- Without release Home button, release power button. Keep holding Home button until your iPhone 3G get into the running pineapple screen.
7) Once finished, reboot your iPhone 3G. Your iPhone 3G should now been jailbreaked.

Unlock Steps:
For those who using lock set. Please continue following:
Setup wireless network.
9) Launch Cydia.
10) Add repo: http://repo666.ultrasn0w.com.
11) Download and install Ultrasn0w 0.93
12) Reboot your iPhone 3G.

Your iPhone 3G should now been unlocked. You should able to see your ISP network now.

Related posts:

1. How to Jailbreak + Unlock iPhone 3G 3.0 Firmware
2. How to upgrade to firmware 3.0.1 + Jailbreak + Unlock
3. Upgrade and Jailbreak/Unlock your iPhone 2G/3G

Basically SwapMode will allow you to switch between normal and game mode. Game Mode will turn off background services and SpringBoard Extensions such as SBSettings, iHome, etc. Your device will behaves as if it is freshly jailbroken with no app and extension installed, thus reducing the chances of system crash during game play. Normal Mode: Revert device to normal operation. Re-boot if necessary should it experience any abnormality.

Go to your iPhone Cydia and search for Swapmode and install.

Version: 1.1
Author: niufenfen
Section: Utilities

Identifier: net.ispazio.SwapMode
Maintainer: iSpazio.net
Homepage: http://www.installerepo.com/ispazio/SwapMode
File Name: .//deb/SwapMode1.1.deb
Size: 310560 bytes
Architecture: iphoneos-arm

You can use any kind of utility tools for measure your iPhone memory and you should see a significant change.

Hope this can help.

With Swapmode, you can enjoy your iPhone game without crash now!

Related posts:

1. 10 Must-Have iPhone Games
2. How to Change iPhone Root Password
3. HELP!!! iPhone Stuck in White Apple Screen

There are tons of FREE iPhone applications available on Cydia. Just add Cydia Repo Sources now!

Cydia Sources:
*A-steriods: http://a-steroids.com/cydia
*apt9.yellowsn0w.com: http://apt9.yellowsn0w.com/
*BigBoss & Planet-iPhones: http://apt.bigboss.us.com/repofiles/cydia/
*cake.mapleidea.com: http://cake.mapleidea.com/cydia/
*david.ashman.com: http://david.ashman.com/apt/
*EasyWakeup.net: http://easywakeup.net/repo/
*Hack&Dev: http://iphone.hackndev.org/apt/
*HackThatiFone: http://hackthatifone.com/htif/apt/
*HVKLS: http://hvkls.dyndns.org/downloads/debian/
*i.danstaface.net: http://i.danstaface.net/deb/
*iAcces: http://www.iacces.com/apt/
*iClarified: http://cydia.iclarified.com/
*iFoneTec: http://app.ifonetec.com/cydia/
*iMobileCinema: http://d.imobilecinema.com/
*iSpazio: http://www.ispaziorepo.com/cydia/apt/
*MacCiti: http://macciti.com/cydia/
*ModMyi.com (formally ModMyiFone.com): http://apt.modmyi.com/
*namedfork.net: http://apt.namedfork.net/iphone/
*Niklas Schroder: http://apt.paperclipsandscrambledeggs.com/
*PwnCenter: http://apt.pwncenter.com/
*Ranbee: http://ranbee.com/repo
*RichCreations: http://www.richcreations.com/iphone/apt/
*RupertGee: http://redwolfberry.com/rupertgee/cydia/
*SaladSoft: http://nickplee.com/cydiasource/
*Sleepers.net: http://repo.sleepers.net/cydia/
*Ste Packaging: http://repo.smxy.org/cydia/apt/
*Steffwiz: Now part of PwnCenter Source
*Telesphoreo Tangelo: http://apt.saurik.com/
*Touch-Mania (German): http://cydia.touch-mania.com/
*UrbanFanatics.com: http://urbanfanatics.com/cydia/
*ZodTTD: http://www.zodttd.com/repo/cydia/

Cydia Language Sources:
*Apple-News.fr (French): http://apple-news.fr/repo
*comcute (Estonian): http://gecko.pri.ee/cydia/
*CZ&SK iPhone & iTouch (Czech/Slovak): http://csid.tym.cs/repo/
*FreeCoder.org (Chinese): http://iphone.freecoder.org/apt/
*HebDev (Hebrew): http://apt.hebdev.com/
*Hackers Dot NL (Belgian & Dutch): http://apt.hackers.nl/
*i-Apps.pl (Polish): http://cydia.i-apps.pl/
*iFon Norway (aka iFon1) (Norwegian): http://c.ifon1.no/
*iFoneguide (Dutch): http://cydia.ifoneguide.nl/
*iPhone-Notes.de’s Source (Germanic): http://apt.iphone-storage.de/
*iPhone-Patch (Bulgarian): http://mspasov.com/
*IphoneCat (Catalan): http://apple.bloks.cat/repo/
*iPhoneHE.com.il (Hebrew): http://iphonehe.com/iphone
*iPhoneIslam (Arabic): http://apps.iphoneislam.com/
*iPhoneMod Brazil (Brazilian): http://cydia.iphonemod.com.br/
*iPuhelin (Scandinavian): http://ipuhelin.com/cydia/
*Nick S Denon (aka WeHo.ru) (Russian): http://weho.ru/iphone/
*SOSiPhone (French): http://cy.sosiphone.com/

Sources for Installer 4.0:
Big Boss: http://apptapp.thebigboss.org/repofiles/installer4/
iPhone-notes.de: http://i.phone-storage.de/
iSpazio: http://repo.neolinus.org/ispazio/
ModMyiFone.com: http://i.modmyifone.com/
Rip Dev: http://i.ripdev.com
Ste Packaging: http://repo.smxy.org/installer4/
German: http://sendowski.de/iphone

Enjoy and hope you find a good one!

Related posts:

1. Playing iPhone Games Without Crash

“Maxis 3G/EDGE/GPRS Charge is Expensive!!!“

I found a way to disable the 3G or/and EDGE on your iPhone. You can enable it anytime you like if you need it.

Try out this application: BossPrefs (You may get it from Cydia for FREE.)

You can use this application to

- Disable/Enable 3G (Disable this to save you tons of money)

- Disable/Enable EDGE (Disable this to save you tons of money, since it charged the same rate as 3G)

- Disable/Enable WiFi (Any reason we need to do this? As far as I know, NO.)

- Disable/Enable Bluetooth (Good feature, why should I disable it?)

BossPrefs also has other useful features (tab on the More button on top) like:

-Fix User Dir Permissions (This will help to solve some application crash problem)

- Show Free Disk Space (To check your iPhone’s free space without go into iTune)

- Enable Numeric Battery (Show percentage of available battery instead of the green battry icon)

And, BossPrefs has shortcut to:

- Respring (restart the GUI of iPhone)

- Reboot

- Shutdown

Your iPhone (just tab on the Power Button on the bottom of the screen and you will get the menu).

I do feel this is a VERY useful tool. Let’s give it a try and see how good it is.

Thank you for reading.

Related posts:

1. Maxis 3G/EDGE/GPRS Charge is Expensive!!!
2. How to Maximize iPhone Battery Performance
3. How to Jailbreak and Unlock iPhone 3G with IOS4