Can't put device into flashmode or fastboot mode.

[kp789]

Hi,

I can't get my device to go into any modes - flashmode or fastboot mode.  I have my device turned off, hold down the back (or menu) button, and finally connect the USB.  The green LED flashes for less than 0.5s and then continues to charge mode with battery icon.  I want to refresh the firmware in my phone using PC companion (the latest version) but when asked to put the device into flashmode the PC doesn't detect it.  PC companion has installed all the correct USB drivers on my computer.  Does anybody have any idea why the phone won't let me enter these other modes?

Thanks

[M7ammad_eb]

just make a factory data reset and you'll be good

[NadirNFS]

I have solution, and you can get your device to go into any modes - flashmode or fastboot mode in this version of Xperia   just Click here to watch how to do that : https://youtu.be/PLsn5Zs3nVA

Enjoy  .

[saikrish]

Good Evening/Hello/Hi ,

I have a problem with my Sony Xperia M Dual(C2004). After i flashed my phone does not work perfectly (errors with some application in sd card) and i decided to restore it to stock firmware. The firmware i am trying to use was already flashed other time and it work fine. But now, when i try to get into flashmode the green led light up for 1 second, then light off and stuck into flashmode. I have all drivers on my pc and it recognize the phone as SOMC flash device, but the green led is down and Flashtool not start flashing.... What can I do? Fastboot and recovery mode works fine.

[AleemSyed021]

Dear Brother,

I beg you to please help me,.i cant put XA ULTRA F3216  in FLASHMODE / FASTBOOT MODE as i have flashed with bad kernels,now i need to flash but TRIED TRIED all the procedures .

NOW PLEASE HELP ME WITH YOUR PROCEDURE TO enter FLASH MODE, awaiting for your reply, Thank YOu in advance.

PLEASE HELP ME 

[Anthillion5634]

Hi there, I have a solution, use a MACBOOK.

You turn on USB debugging, OEM unlock too in developer settings.

Turn off your phone completely

At the same time as holding the volume up plug in your phone to the MAC and the blue light should appear.

hey Presto 🎊

[Liberty10]

I realize this post is from 2013, but I had this same problem with a xperia xz with flashtool in 2018. Turns out, for me at least, the solution was mind-numbingly easy. When your device is making the 0.5 second green lights, it is in flashmode. It was just a matter of entering flashmode prior to starting the flash in flashtool, as the application would not reconize a device in flashmode if started when promted by the application.