Xperia U KITKAT Update

You may now upgrade Sony Xperia U to Android 4.4 KitKat using an unofficial CyanogenMod 11. It features bloatware-free system and tweaks exclusive from CyanogenMod ROMs

 Process: 

1.      Manually backup all data files and personal information stored on your smartphone.

2.      Make sure that the battery level is at least 75 per cent.

3.      Unlock the boot loader of your smartphone

4.      Download Cynogenmod 11 from  Here
         Download Gapps(google app which are not included in the rom package) from Here

5.      Download fastboot files from    Here

6.      Enable USB debugging mode on your smartphone. Go to "Settings > Development>                    USB debugging mode."

Flashing Instructions

1.      Extract the fastboot files you've downloaded to a folder on your computer desktop.

2.      Unzip the Xperia U CM11 firmware which contains the "boot.img" kernel file then save it to the fastboot folder.

3.      Connect your Xperia U smartphone to the computer using a USB cable.

4.      Copy and paste the CM11 and Google Apps package to the SD card of the Xperia U.

5.      Disconnect the smartphone from your computer then turn it off.

6.      Press and hold the 'volume up' key while you connect the smartphone to the computer using a USB cable.

7.      Once your phone LED turns blue, open the fastboot folder on your computer.

8.      Launch a 'command window' inside the fastboot folder.

9.      Type the following commands: fastboot flash boot boot.img

10.  Once the 'finished' message appears, disconnect the phone from the computer then turn it on while pressing the 'volume down' key continuously.

11.  Inside the recovery mode, select "backup and restore > backup" to save a copy of the current ROM. You may restore the saved ROM anytime.

12.  Perform a full wipe by selecting "wipe data/factory reset" and "wipe cache partition" then "advanced > wipe Dalvik cache."

13.  Install the CyanogenMod 11 by selecting "install zip from SD card > choose zip from SD card > find the CM11 firmware > confirm installation." Apply the same with the Google Apps package.

14.  Once the installation has been completed, go back to the main menu and select "reboot system now."

15.  Sony Xperia U will reboot and may take up to five minutes before reaching the home screen

It's Done . You get latest KitKat Rom from CynogenMod

Unlocking Bootloader Simplest Method

 1. You Have to First Instal Flashtool from Here

 

 2. Then you have to instal specific driver of your devices ,Mine is Xperia U

 

3. After instaling Driver ,Start flashtool.Where you seen "BLU" in dark colour.

 

4.Now connect your phone in Flasmode(Volume Up+Power key).It show green indication at           bottom of the transparent bar.

 

5.Click on BLU 

 

That's It now your phone is bootloder unlocked

Complex method for unlocking Bootloader..

Xperia U Unlocking Bootloader / method 1

Warning!

This procedure will wipe the /data partition of your phone, so you will loose all ur stored data, settings. SDCARD will NOT BE WIPED!!!

why to unlock bootloader?

1. u can flash custom ROMs/Kernels
2. u dont need to worry if the new firmware can be rooted or not as with unlocked bootloader u can always ROOT ur device
3. SE/Sony gives sneak-peaks/preview builds of latest OS which requires unlocked bootloaders, as they did with Xperia 2011 line (they had ICS alpha/beta), so who knows may be SE/Sony may give early builds of ICS (JellyBean???

 [ how to unlock ] (official way)

1. Go to: http://unlockbootloader.sonymobile.com/ and read everything!
2. At the bottom click 'Start Unlocking the Bootloader'
   
   Quote:

   First, you should confirm that it is possible to unlock the boot loader of your phone by checking the service menu. In your phone, open the dialler and enter *#*#7378423#*#* to access the service menu. In your phone, tap Service info > Configuration > Rooting Status. If Bootloader unlock allowed says Yes, then you can continue with the next step. If it says No, or if the status is missing, your device cannot be unlocked.

3. after u have verified that u can unlock bootloader, scroll to the bottom of the page and click "Continue"
4. you will get "are u sure prompt" accept it by clicking "yes i am sure" (i assume that u have read an understood it)
5. then accept the "legal terms"
6. finally u will get a "Create Unlock request" page, enter your IMEI (sometimes the last digit needs to be removed for this to work), name and email address
7. You should now receive your unique unlock key, its displayed on screen, SAVE THIS KEY SAFELY
8. Extract fastboot_with_Android_USB_file.rar and open fastboot folder
9. Hold SHIFT and right click on the background of the folder
10. Select 'Open command window here'
11. Connect your phone in fastboot mode (turn phone off, hold Volume UP button and plug in USB Cable) [make sure drivers are installed as explained above)
12. In the cmd windows type in fastboot.exe -i 0x0fce getvar version
13. If a value is returned (it will return 0.5), it means the phone is correctly connected
14. Type in fastboot.exe -i 0x0fce oem unlock 0xKEY and replace KEY with the key which u received earlier.
15. You're device should now be bootloader unlocked

INTERNET DOWNLOAD MANAGER IDM V6.15 BUILD 12 FULL VERSION

INTERNET DOWNLOAD MANAGER IDM V6.15 BUILD 12 FULL VERSION

 

Download Link -  Link 1   ,
Link 2

 

Xperia U Jellybean Update (CynogenMod)

Update Xperia U ST25i to Android 4.1.2 Jelly Bean via Cyanogenmod 10

Pre - Requirements

        Charge your Xperia U to at least 50% so there is no power interruption during this process

• Make sure it is running Official ICS 4.0.4 and not any other firmware such as Gingerbread 2.3.7
• Download Flashtool
• • Disable all security related software (like Antivirus / Firewall) installed in your PC.
  • Before you proceed further, make sure that you have unlocked the bootloader of your device. If you’ve not done it already.
  • Custom Recovery like Clockworkmod must be installed in order flash Cyanogenmod Custom ROM. If you’ve not installed it yet, follow this .
  • Please note that, above two steps shouldn’t be ignored as they are very essential to install Cyanogenmod 10 on Xperia U. Without them you can’t proceed further.
  
  
  Step 2
  Download latest Cyanogenmod 10 package from the link mentioned below.
  Download Link
  
  
  Step 2
  
  
  
  

  • Since Cyanogenmod doesn’t include Google apps, you also need to download & flash them separately. This package contains apps like Gmail, Hangout, Play store, Google+, Google Settings, Google Now, Play books / Movies etc. You can download GApps package from the link given ahead:

  1. GApps for Android 4.1.2 (Cyanogenmod 10) (Filename: gapps-jb-20121011-signed.zip)

  • After downloading CM10 & GApps package, connect your device to PC. Enable mass storage mode on it. Now transfer these two files to your device’s internal storage. Don’t extract them else it won’t work.

  • Switch off the phone and enter into the fastboot mode. To do so, Connect your phone to the computer. While connecting, press & hold Volume up button to trigger fastboot mode.

  • Now, we need to flash a CM10 kernel which is required to boot CM10 ROM. Therefore, on PC, download Fastboot files:

  1. Fastboot Files for Sony Xperia U.

  • Extract ADB_files.zip to any convenient location on a computer. You will find five files inside your extracted folder.

  1. adb.exe
  2. AdbWinApi.dll
  3. AdbWinUsbApi.dll
  4. fastboot.exe
  5. runme.lnk

  • Open Cyanogenmod 10 package using WinRAR or 7-zip, extract boot.img file (which is nothing but a kernel) on the desktop. You can find boot.img in the root directory of ROM.

  • Move that kernel file (boot.img) in Fastboot folder.

  • Now open runme.lnk file (from Fastboot folder) and type this command. This would flash the kernel on your device.

  fastboot flash boot boot.img

  • After flashing the kernel, disconnect phone from computer. Now, put your phone in recovery mode. To do so, switch off the phone, switch it on again, when phone is restarting (during boot logo & LED turns blue), repeatedly press Volume up button. Your phone will land in recovery mode. Note that, your phone won’t boot in recovery mode unless you’ve installed a custom recovery like CWM.

  • As soon as you boot into recovery, make a nandroid backup of your current ROM so that it can be restored back in case if anything goes wrong. To backup your current ROM, selectBackup and Restore option from the main menu & on next screen, select backup. Now It will make a nandroid backup of your whole system. Wait for the backup process to get finished.

  • Select wipe data/factory reset & subsequently wipe cache partition to wipe the data & caches respectively from the phone memory. Wiping cache partition is not necessary though, since Wiping data / factory resetting phone itself wipes many partitions but still it’s recommended. (Caution! performing this step will erase all the data from phone, therefore ensure that you’ve taken backup of all these things before. Please refer Pre-requisites section for the same).

  • Now select install zip from sdcard & then on next screen select choose zip from sdcard. It will show all the files & folders located on internal storage of your device. Navigate to the CM10 ROM file that you’ve copied earlier , select it using power button (unless you’re using touch recovery) & confirm the installation by pressing on ‘Yes – Install ____’. This would start the installation process.

  • Wait for the ROM to get installed. After ROM gets installed successfully, your phone will land in the recovery mode again.

  • Again select wipe data/factory reset & wipe cache partition to wipe all the data & caches from the phone memory respectively.

  • Now select install zip from sdcard followed by choose zip from sdcard & this time browse for Google apps package file (gapps-jb-20121011-signed.zip). Press on ‘Yes – Install gapps-jb-20121011-signed.zip’ to confirm Google Apps installation.

  • After you finish flashing both files, select “reboot system now” to restart the phone.

  
  

  
  

  It's done ,You have Jellybean 4.1.1

Method - 2

Requirements:

• Charge your Xperia U to at least 50% so there is no power interruption during this process.
• Make sure it is running Official ICS 4.0.4 and not any other firmware such as Gingerbread 2.3.7
• Download Flashtool

Since rooting is not yet possible on the 6.1.1.B.1.89 kernel, users have to first flash the 6.1.1.B.10 kernel which can be found .here

This method only work with Xperia U ST25i with firmware 6.1.1.B.1.10

1. Switch USB-Debugging on:

    Setting >Developer Option >USB-Debugging

2. Install Flashtool on your pc

   Download Link - Flashtool

3. Instal Driver from following Directory

    C:\Flashtool\drivers\

   Choose Xperia U from mention list

                              

   

4. If Your ST25i already Bootloader unlocked then proceed .If not then see my next tutorial how to unlocked Bootloader .

4.1 Now open Flashtool

4.2 There u See Locked type Icon , Which indicate "Root Device"

My handset is alredy rooted so the locked icon look faded ..but if not then it seems like black icon

4.3 Now select Type of root .It's 

    -Super User

    -Super SU

which ever u like 

4.4 At this process your phone restart several time .

      You have to select "Restore"   When they asked in Process

It's Done your phone is rooted

Method - 1

Required File : Download Link

How to Root Sony Xperia U

Below is the working method to One Click Root Method

1. Download and extract Bin4ry rooting script to your desktop.
2. Connect your device to PC, and drivers will be installed wait for it.
3. Now open RunMe.bat file.
4. Click 1 to choose normal mode.
5. Follow the on-screen instructions.
6. Wait for Rooting Sony Xperia U and your Sony Xperia U will get rooted.
7. You have successfully rooted your Sony Xperia U now

Specifications

Sony Xperia U Features and Specifications

General
Alternate names	ST25i, ST25a
Release date	May 2012
Form factor	Bar
Dimensions (mm)	112.00 x 54.00 x 12.00
Weight (g)	110.00
Battery capacity (mAh)	1320
Removable battery	Yes
Colours	Black, White
SAR value	NA
Display
Screen size (inches)	3.50
Touchscreen	Yes
Touchscreen type	Capacitive
Resolution	480x854 pixels
Pixels per inch (PPI)	280
Colours	16M
Hardware
Processor	1GHz  dual-core
Processor make	STE U8500
RAM	512MB
Internal storage	8GB
Camera
Rear camera	5-megapixel
Flash	Yes
Front camera	0.3-megapixel
Software
Operating System	Android 2.3
Java support	Yes
Browser	HTML
Browser supports Flash	No
Connectivity
Wi-Fi	Yes
Wi-Fi standards supported	802.11 b/ g/ n
GPS	Yes
Bluetooth	Yes, v 2.10
NFC	No
Infrared	No
DLNA	Yes
Wi-Fi Direct	No
MHL Out	No
HDMI	No
Headphones	3.5mm
FM	Yes
USB	Micro-USB
Charging via Micro-USB	Yes
Proprietary charging connector	No
Proprietary data connector	No
Number of SIMs	1
SIM Type	Micro-SIM
GSM/ CDMA	GSM
2G frequencies supported	GSM 850/ 900/ 1800/ 1900
3G	Yes
3G frequencies supported	900, 2100
Sensors
Compass/ Magnetometer	Yes
Proximity sensor	Yes
Accelerometer	Yes
Ambient light sensor	Yes
Gyroscope	No
Barometer	No
Temperature sensor	No