How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask *ElectronicsTech Your Own Question
*ElectronicsTech, Customer Service
Category: Electronics
Satisfied Customers: 10284
Experience:  I have over 15 years experience as an electronics repair and troubleshooting technician.
Type Your Electronics Question Here...
*ElectronicsTech is online now

Xperia U just stoped working

This answer was rated:

Xperia U just stoped working and now will only flash SONY then XPERIA until the battery is dead.

My name is***** will assist you.
I am sorry to hear that you are having this issue
press and hold down Volume Up + Home + Power buttons at the same time. Then release the buttons when you see the Logo. Use the Volume Down button to go down and the Home or Power key to select. Choose the Wipe data/Factory reset option. Then Select Yes to delete all user data. Then choose to reboot the phone. -
Please let me know if you need any other assistance.
Please take a moment to rate my service positively.
Thank you very much!
Customer: replied 3 years ago.

it didnt work

okay, sorry about that. Do you have pc companion on your computer that syncs the Sony?
Customer: replied 3 years ago.


okay, try these steps please>
  1. open PC Companion Applications
  2. Before you connect the phone, please choose Phone Update and follow the steps on PC Companion
  3. At the menu, PC Companion will tell you how to connect the phone with PC Companion using USB cable and press the Volume Down button
  4. Finish the PC Companion step and until it doing Factory Reset to SONY XPERIA U ST25i to factory default Android operating system.
Customer: replied 3 years ago.

still not working puts me onto troubleshooter

ok, follow the troubleshooter and see if it will update the firmware. You may have to connect and reconnect the phone a few times.
Customer: replied 3 years ago.

still doing the same thing

try this next please>
  1. Open the PC Companion and connect your device to the computer.
  2. Scroll to and click Start underneath Support Zone.
    • Note: On first use, it will take a moment to start Support Zone.
  3. Click Start underneath Phone / Tablet Software Update.
  4. Click repair my phone / tablet.
  5. Review the information on the screen and click Next.
  6. Review the information on the screen and click Continue.
  7. Check the box and click Next.
  8. Wait while the latest software is downloaded and installed.
Customer: replied 3 years ago.

its still doing the same the same thing

okay, unforunately this sounds like the firmware ahs failed. What is the approximate purchase date please?
Customer: replied 3 years ago.

it s out of date

.okay, sorry about that. Unfortunately there are no other options get it going again
*ElectronicsTech and other Electronics Specialists are ready to help you