My Sony Xperia Z won't start /turn on after failed update attempt

[Manza]

When I plug the phone into the wall charger, the LED comes on red, the SONY logo appears on my screen, followed by a message indicating that "The Software update failed. Make sure that your phone is connected to the computer and try again.", and then the phone turns itself off. The cycle repeats itself with no indication that my phone's actually being charged.

[PraGad]

It sure worked for my Z3 Compact ! Thanks a lot !

[ReeceEaley]

Hey there everyone, i know a lot of people are saying that they plug there phone into the computer and PC companion does the job for you. my problem is that my xperia Z has a broken charging port so when i plug it in to anything it doesnt charge. To charge my phone i am using a cradle charger but plugging that into the computer the phone is not recognised. does anyone know a way to slove the failed update error  without using a computer or is my phone completly f*****? all repliees will be gladly recived. thanks and sorry for the langueage and poor spelling

[ismadi]

I receive this screen and now the pc companion is not able to detect and the phone is not able to power up with the 3 vibration way.

I believe the flashload is now corrupt. 

[crazysadiq]

i have tried the whole process seversl time but every time it shows,``Device update error,an error occured and the device software update was cancelled.`` plz help me

[heba86]

please help me my xperia Z didn`t work after update softwear and i have this msg : 

The Software update failed. Make sure that your phone is connected to the computer and try again

[enyline]

hi.. im having the same problem with my phone and i try to repair it but there's no 'repair' in the PC Companion. help. im really desperate to use my phone right now

[erickenji]

thanks for your help,my solution being settled

[hosein53]

thanx for your helping, thanx very much.

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@Thommo wrote:

Fully switch off your phone and make sure it is disconnected from your Pc then start PC Compannion and select Support zone then Update my phone/tablet then in Blue select Repair my phone /tablet and follow the onscreen instructions and when prompted making sure your phone is still switched off hold Volume down and connect your USB cable which should enter your phone into flashmode and start the repair process

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[Tusher1]

My volume down button isn"t working... can"t i use anther button when reseting my mobile software?

[lucho_rl]

Hello, have you solved this? i have the same screen, and it loops when I connect to the wall charger. I have tried to enter on fastboot and tried to use pc companion to repair but the pc does not detect the device.

What can i do?