Sony Xperia Z3 bricked by flashing different backup - Xperia Z3 Q&A, Help & Troubleshooting

I flashed a bootloader unlocked Z3 from TWRP with a backup from another Z3 and now phone lite blinks red when plugged in to charger or computer. Phone does not stay recognized by windows. Cant boot into bootloader or recovery at all. I have tried every key combination to restart and yellow button. I tried Sony Xperia companion software as well. No luck. I am sure I have used TWRP backup from same model phone before. I am sure the backup is from same model as phone I seem to have bricked.

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[Q] Need Help in Flashing Xperia X8 E15i

Hi guys..I need help with flashing my Xperia X8.
I made some mistake in flashing the rom..and now my phone is bricked and stuck at Sony Ericson logo.
I've tried flashing my Phone with PCC and Flashtool since SEUS cant be used now..But nothing works.
Here what i've done:
FlashTool
1)Insert Xperia x8 default firmware in Flashtool/Firmware
2)After I choose My firmware I insert USB cable to my CPU,(Phone Turned Off)Press Back Button and then insert the usb cable.
3)It does not enter flash mode.No Green Light No nothing.It only entered to Sony Ericsson logo and stuck there doing nothing.Pull back the battery
and insert back and press the Back button,Insert the USB Cable to phone the problem still occur!
4)Tried all sorts of combination still the same..
PC Companion
1)Same problem with flashing since It need to press Back Button(Phone turned off)..
*The problem occur after I install GingerJHV5 rom and Wipe/Reset Factory during XRecovery*

[Q] How to fix xperia z3 if the lower key button during flashmode can't be detected?

guys im in desperate need of help i've installed the drivers for xperia z3 via xperia flashtool drivers the flashtool v9.18.5 seems to fully recognize my phone on boot but as i access flashmode it recognizes my phone as device connected with usb debugging off and as i tried to followed the instruction given on this thread http://forum.xda-developers.com/crossdevice-dev/sony/xperia-z1-z2-z3-series-devices-drm-t2930672 for lollipop can't even bypassed the pop up waiting for flashmode devices screen with some keys to follow so im unable to flash the ftf for the lollipop fully and hoped to relock my bootloader and restore my lost drm keys. currently the only way i can update my phone is by using prf creator.

Can't access flash mode on Xperia Z3.

Hi guys. I can't access flash mode on D6603 model Z3. The phone isn't working. I can't open it with power button. When I plug into a wall charger it only bootloops the sony logo. And when I try to restore it with PC Companion I can't access flashmode. Same with flashtool. Phone isn't rooted and has offical firmware. How can I fix this? I really need help.
Edit: Replaced the battery and now it's working fine.

Xperia3 dual sim, flashed miui rom from z1 on accident

Now pc wont recognize phone in fastboot or flashmode. It had a 48% charge and it did start up into a bootloop 3 or 4 times. thats why i thought i would be ok. Then I realized it was a rom for z1 and it quit startin g at all. it is recognized as something by pc, although it says device not recognized. no lights no nothing.
jhr5474 said:
Now pc wont recognize phone in fastboot or flashmode. It had a 48% charge and it did start up into a bootloop 3 or 4 times. thats why i thought i would be ok. Then I realized it was a rom for z1 and it quit startin g at all. it is recognized as something by pc, although it says device not recognized. no lights no nothing.
Click to expand...
Click to collapse
Update, it is now recognizing my phone in fastboot and I can fastboot stuff. Anybody know where I can find twrp or cwm for the dual sim z3 to fastboot? It is not charging says it is at 1%. But will sit in fastboot without rebooting.
Naaah its not an accident, you went to the Z1 forum download it and flashed it on your Z3 so please tell us its not an accident mate.
Try repair with pc companion !

Sony Xperia Z3 D6603 Hardbricked Help

Hello.
I have bricked my Sony Xperia Z3 by trying to install a D6616 firmware, I have a D6603. It did fail on amms. But the bootloader was installed. My Z3 is bricked. Black screen. Does not turn on. No LED. No vibration. But if I leave the device plugged into the PC for a long time, it is detected as an Unknown Device. I removed the battery and plugged it into the PC. The Red LED blinked briefly and it was detected as QHUSB_BULK. But then as SOMC Flash Device. Sony Flash Tool does not work. It says: Device connected, with USB debugging off. Please help, is my Sony still salvageable
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