Android L Preview on Nexus 7

Hi all,

Today I’ve finally loaded the Android L Developer Preview on my Nexus 7 Wi-Fi 32GB

 

Its so simple to load the Android L. Here is the procedure

 

Warning

All the device data will be erased. Please take backup of all your data before doing this upgrade.

Not all the applications will work since it’s just a developer preview OS version

 

Pre-requisites

• Android SDK with latest update
• Android L Preview OS image
• Make sure that, your device has more than 60 to 70 percent of battery
• Enable USB Debugging
• Connect the device to computer with USB cable. Make sure that, it has detected by computer

 

If you don’t’ have the pre-requisites, please follow the below procedure

 

Android SDK Installation & Update

1. Download the Android SDK from this link
2. https://developer.android.com/sdk/index.html
3. Open SDK Manager.exe
4. Install Tools, Android L Preview, Extras
5. Update latest version if available

 

Android L Preview OS Image Download

1. Download the corresponding Android L OS image for your device from this below link
• https://developers.google.com/android/nexus/images

 

Installation Process

1. Extract the downloaded image to a folder
2. From Android SDK folder, navigate to “platform-tools” folder, copy adb.exe, AdbWinApi.dll, AdbWinUsbApi.dll and fastboot.exe
3. Paste in the Android L Preview extracted folder
4. Finally the extracted folder should look like this
• 
5. The highlighted files has been copied from SDK->platform-tools folder
6. Open the command prompt and navigate to OS extracted folder
• Tip
• Open the folder in explorer window. Hold “Shift” and right click on mouse
• Select “Open command Window here” option
7. Connect the device to computer
9. Put device into “fastboot” mode by rebooting
• cmd> adb reboot fastboot
10. Device gets rebooted to fastboot
11. If device is locked, then please unlock it
• cmd> fastboot oem unlock
12. Now, run the “flush-all” script
• cmd> flush-all
13. It takes some time to install the image
14. After completing the installation process, it asks you to press “enter/return” button to exit
15. Press enter/return button for confirmation
16. Device gets restarted, Android L Preview will be displayed on the device
17. To lock the device, execute following commands
• cmd> adb reboot fastboot
• cmd> fastboot oem lock
18. Like a new device, enter all the details like your Gmail account, Wi-Fi connection etc.
19. Enjoy the features of Android L Developer Preview OS

 

Please send your feedback and queries to psrdotcom@gmail.com

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Successfully Jailbroken the iPhone 4 with iOS 4.3.3 in Windows XP

Hi friends,

I have successfully jailbroken the iPhone 4 with iOS 4.3.3 of my friend. After watching lot of videos from Youtube, I followed these steps.


Pre-Requisites:
Download and install latest iTunes on PC
Download Apple iOS 4.3.3 firmware IPSW file
Download latest RedSn0w for Windows

Procedure:

• Unzip the RedSn0w file and execute the "redsn0w.exe" file (Better to run the exe as "Run as Administrator")
• Click on "Browse" and select the downloaded iOS 4.3.3 firmware file "iPhone3,1_4.3.3_8J2_Restore.ipsw"
• Click on "Next"
• The "iPhone3,1_4.3.3_8J2_Restore.ipsw" file will get processed and patches will be applied to iOS kernel
• Select the "Install Cydia" option, if it hasn't selected
• Click "Next"
• Please see the instructions carefully
• In this step, you need to switch off the device and iPhone should be connected to PC
• Now, we need perform very important step of the jailbreaking, i.e. putting iPhone in DFU mode
• Press and hold the "Power Button" for 3 seconds
• Now, without leaving the "Power Button", press and hold the "Home" button of the iPhone for 10 Seconds
• Final step, Leave the "Power Button" but hold the "Home" button of the iPhone device for 15 Seconds
• You can see on PC that it was successfully entered into DFU mode
• You can see some commands are running on the iPhone 4 (Don't get scared, no issue with your device)
• After successfully jailbreak the device, iPhone will get rebooted.

Jailbreak Verification Step:

• If the device is Jailbreaked then the Cydia app will be installed on your iPhone
• You can browse the iOS filesystem from it

Problems and Solution:

• If you have problems in entering into DFU mode, then the iPhone will move to "Restore" mode
• To come out of "Restore" mode, Press and hold the both "Power Button" and "Home Button" for 10 Seconds
• Again do the procedure from start

References:
http://www.iphone4jailbreak.org/redsn0w-jailbreak-4-3-3-redsnow-un-tethered-jailbreak.html
https://sites.google.com/a/iphone-dev.com/files/home/