[Xperia Z2 Q&A, Help & Troubleshooting] Ha66is:
Why does Android allow 'tinkerers' like me to tinker?? A little knowledge can be dangerous thing.

Hi.

Ok, so, I've gone and buggered it (I think but certainly hope not).

My new Z2 that I LOVE got some water in it last week. The phone continued to work but somewhat erratically, not responding to the touch screen etc etc. After leaving it for a few days on the window ledge, all signs of water ingress had disappeared and it worked ok. I’m sure the relevance of the water is only that it started me thinking…….maybe its knackered, so starting to ‘play’ isn’t a bad thing. I really doubt the water is an issue here.

Here's where the tinkering starts. I have a N5 which has been on Android L prev for months now and loaded the final build last week. It’s great, but hey, that's for the N5 group i guess.

The point of sharing that is.......even as a complete novice, I have flashed, re flashed and returned to stock my N5 many times and thus I thought......how hard can it be?

In an effort to flash a new Rom (CM11) to the Z2 I have buggered it. So in an effort to be as comprehensive as poss....please don’t ask 'why' to any of this because, to be frank, I'm not sure.........

1.	I unlocked the phone (bootloader??) via the Sony website process....request code, get token etc etc........all good

2.	I flashed CM11 and 'eventually' got it working. I say eventually because my ADHD means that I (perhaps) wasn’t as diligent with following instructions and it took a couple of attempts. Nonetheless it was working.

3.	I saw (the next day) that 4.4.4 was available for Z2 and in conjunction with the camera features that I was missing, I thought I'd flash back to stock to see if 4.4.4 was acceptable. That’s where the fun starts.

4.	Through either

a.	not following instructions,

b.	doing something wrong or

c.	just bad luck…..​

the phone is now (nearly) dead. I say nearly because......

5.	When you boot it up, it will.....

a.

After ~2sec press on pwr, it will vibrate and show the Sony Xperia screen

b.	After ~6 secs the Sony screen disappears and a screen with the following message appears….

“The software update failed. Make sure that your phone is connected to a computer and try again”.

That message is accompanied by a kind of (I guess) Ying Yang type graphic and a warning triangle.​

c.	Then the screen goes off. I assume the phone actually goes off because the only way to revive it is to go back to the pwr button.

6.	If I follow the instructions for flashmode, once I connect a cable whilst holding down the ‘vol down’ rocker, the LED flashes red momentarily and then (I’m sure) flashes instantaneously to green before going out and the phone is then dead. I say I’m sure because its so bloody quick its almost indeterminable.

7.	If I follow the instructions for fastboot, once I connect a cable whilst holding down the ‘vol up’ rocker, the LED flashes red momentarily and then flashes to blue, at which point it stays blue.

I’ve tried many different threads, tutorials etc and can’t get out of this jam.

a)

In flashtool, the phone is simply not recognised.

b)	In Emma, the phone is obviously ‘seen’ as I get a message telling me that the phone is locked. Eh? WTF?? How is that??

c)	In flash tool, when I try to BLU….I get……

07/014/2014 13:14:27 - ERROR - (Bundle.java:443) - Cannot delete C:\Flashtool\.\firmwares\prepared\boot

d)	In flash tool, when I try to flash using the fastboot toolbox (using the reboot via ADB) option….I get……

07/014/2014 13:14:44 - ERROR - (FastBootToolBoxJob.java:74) - This action needs a connected device in ADB mode

e)	In flash tool, when I try to flash using the fastboot toolbox (using the reboot via Fastboot) option….I can hear the notifications from my PC that it has rebooted and the blue LED comes back on but that’s it. When I select Kernel to flash……..I haven’t got one (I don’t think).​

So…..devs…can you help?

I’ve tried to be as comprehensive as poss in my description and If I’m missing something, please point out the error of my ways.

I sooo want my Z2 back and promise I wont tinker again (until next time of course).

Much appreciation in advance of suggestions.

Cheers

Thommo.

In reading (and re-reading this) I wonder if ive answered myself……no kernel (whatever the feck that is)??? If that is the case….which one to flash and how??

I understand the kernel can be mismatched to a ROM and thus f**k things up??

(Edit) Also, I understand you cant flash a kernel without an unlocked bootloader???