[Q] Xperia Z2(D6503) Stuck in Boot Limbo after Bad Flash from 4.4.4 to 5.0.2

So last night I tried to flash the D6503_23.1.A.0.690_Customized_BAL.ftf downloaded from flashtool and it failed. Without realising the file itself is only 25MB, I flashed it and my phone is now in boot limbo, it can't go pass the Sony with Xperia boot screen.



I tried flashing a new .ftf file, but it wouldn't recognize the phone. On a computer, even after I hold down the volume down button and connect it to the USB, nothing happens.



On another computer, it says:



02/004/2015 20:04:27 - INFO - Opening device for R/W

02/004/2015 20:04:27 - INFO - Start Flashing

02/004/2015 20:04:27 - INFO - Processing loader.sin

02/004/2015 20:04:27 - INFO - Checking header

02/004/2015 20:04:27 - ERROR - Processing of loader.sin finished with errors.

02/004/2015 20:04:27 - INFO - Ending flash session

02/004/2015 20:04:27 - ERROR -

02/004/2015 20:04:27 - ERROR - Error flashing. Aborted

02/004/2015 20:04:27 - ERROR - Drivers need to be installed for connected device.

02/004/2015 20:04:27 - ERROR - You can find them in the drivers folder of Flashtool.



I have tried installing the drivers from the drivers folder of flashtool, but a lot of the drivers couldn't be installed.



The device could still be charged, but all the LED colors i've seen are only green(full charged), yellow(charging), and red(low on juice), so I believe that there is still hope.



TL;DR boot limbo after bad flash, can't flash good .ftf



Does anybody know how to flash the correct .ftf file? Any help is appreciated.

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