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Sony Xperia U

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Sony Xperia U
Xperia U
Sony Xperia U.jpg
Model Number: See Page
Device Type: Phone
Manufacturer: Sony Sony-icon.png
Release Date: Q1 2012
Operating System: Android Android-icon.jpg
Dimensions: 112 x 54 x 12 mm
Weight: 110g
Display: 3.5”, 854 x 480 pixels 16M color TFT
Chipset: 1 GHz-STE-U8500-Dual-Core-Processor
RAM: Not Known
Internal Memory: RAM: 512MB, 2GB Storage
Memory Card: 8GB(4GB Available and not exchangeable)
Networks: UMTS HSPA 850 (Band V), 900 (Band VIII), 1900 (Band II), 2100 (Band I) GSM GPRS/EDGE 850, 900, 1800, 1900
Wi-fi: IEEE 802.11b/g/n
USB: Not Known
Bluetooth: Bluetooth 2.1 + EDR
GPS: Assisted GPS
Video out: Not Known
Camera: 5 MP AF, LED flash, 16x digital zoom, 720p video
Secondary Camera: Front-facing camera (1.3 megapixel, 720p)
Battery: 1320 mAh
Other features
Additional Features: WiFi hotspot, 3.5mm Audio Jack, Sony Mobile BRAVIA Engine, Timescape UI, ANT+ sports fitness


Official Site
User Manual
Engadget Xperia S review (06/06/2012)

XDA-Developers Forums for the Phone

Xperia U General
Xperia U Q&A
Xperia U Accessories
Xperia U Android Development
Xperia U Themes and Apps


How to Enter Flashmode:
1. Shutdown Phone
2. Press Volume-Down Button
3. Plug in USB Cable in the Xperia U
4. Plug in USB Cable in your PC
If the Illumination Bar gets Green you are right into Flashmode

How To Enter Fastboot Mode:
1. Shutdown Phone
2. Press Volume-Up Button
3. Plug in USB Cable in the Xperia U
4. Plug in USB Cable in your PC
If the Illumination Bar gets Blue you are right into Fastboot Mode

Service Menu:
Dial *#*#7378423#*#* to enter Sony Xperia U Service Menu

Unlock Bootloader

For Unlocking Bootloader use
Official Unlock Bootloader Website (Sony)
you can also use XDA Tutorial for Unlocking or Relocking Bootloader
Xperia U Bootloader Unlocking & Relocking

Root Xperia U

For Gingerbread:
First read everything before you start, might need to update your phone first.
The video can be found via this link.

Rooting Wiki by DoomLord (XDA)
For a complete Rooting Wiki by DoomLord on XDA, read the first 8 posts on the page to really understand everything you are doing to your phone!

I take no responsibility for any damage done by following this guide!

Unlock Bootloader

visit Bootloader Unlock Sony and follow guide

  1. Dial *#*#7378423#*#* this will bring you to the service menu
    • Service > Service info > Configuration >
      Rooting status: unlock allowed must be YES
      if it says NO you cannot root your phone (no solution yet at this time)
    • Service > Service info > Configuration >
      write down your IMEI number to get your Unlock Code
  2. Go to [ Bootloader Unlock Sony]
    read it and click through all pages to create your unlock request.
    If your IMEI doesn't fit, remove the last digit.
  3. download & install the Android SDK
  4. download Fastboot driver, but do not yet install it
  5. take out usb cable & turn off your Xperia U
  6. Enter FastBoot mode > hold the Volume Up button while putting back the USB cable. The Left Blue Led will turn on.
  7. Install the fastboot driver while the LED is on
  8. if you have problems to install the driver and the blue light turns off multiple times before you can update the driver: Open your device manager and go back to step 6
    At the moment you connect the USB cable, you’ll see an unknown device being highlighted. Right click on it to manually update the driver via Properties > Driver > Update Driver > Browse my computer and select the fastboot driver.
  9. Windows start menu > typ CMD in search box
  10. type CD C:\Program Files (x86)\android-sdk\platform-tools
  11. run fastboot.exe -i 0x0fce getvar version
    verify response ( version: 0.x finished)
    if it says < waiting for device > go to back to step 6

If you continue you will not be able to auto-update your software again.
New updates need to be installed manually and can be found at XDA
Your warranty will most likely be voided. For more information read here
Last Step:
run fastboot.exe -i 0x0fce oem unlock 0x22222222
replace 22222222 with your unlock code.
done! reinstall your phone

ROOT your Xperia U

  1. dail *#*#7378423#*#* this will bring you back to the service menu
  2. Service > Service info > Software info >
  3. Check your software version, most likely it will be one of the following: 6.0.B.1.564 or 6.0.B.3.184 (if it is another version, update your phone first)
  4. get the matching kernel from the /kernel/ directory in this zip.
    The 1.564 kernel is made by DoomLord
    The 3.184 kernel is made by KeiranFTW
  5. Copy the matching kernel number from the zip to
    C:\Program Files (x86)\android-sdk\platform-tools
    If you install the wrong version your phone will break
  6. Go into FastBoot Mode again (blue light thingy)
    if you forgot / run into problems > step 6-12 of Unlock Bootloader guide
  7. open up the CMD again
    to double check the connection type fastboot.exe -i 0x0fce getvar version
  8. type or paste cd C:\Program Files (x86)\android-sdk\platform-tools
  9. type fastboot flash boot 222_kernel.elf
    replace 22222 with your specific kernel

For Ice Cream Sandwich:
Use the Root MANY ANDROID! Tutorial for Rooting ICS on Xperia U
Or the noob-proof root via Flashtool for Rooting ICS on Xperia U


  • IMEI: *#06#
  • Extended Info menu: *#*#4636#*#*
  • Service menu: *#*#7378423#*#*

Install CWM Touch Recovery ICS 1.0

Locked Bootloader|ICS|CWM|CWM Touch Recovery 1.0


Play AVI to Sony Xperia P and Xperia U