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Bootloop, no CWM, no Flashtool = Z Lost ?

Hello dear Community,
the prehistory ... about 2 weeks ago I get rid of my S2 and switched to the Xperia Z and I`am completely satisfied.
Because of my pre-"experience" with the S2, various Customrom's, Root and CMW I chose this day for these steps in the Xperia Z .
Got this in the course of the day and I Rooted the Phone and installed the latest CWM Recovery (bootloader locked). So far everything is working fine right after installation, I done a backup of my current StockFirmeware, if something goes wrong to have a backup ready.
After the Backup I Flashed this ROM
[ROM] [XZ] [07/03] Xperia KA02.2 Z Revolution ™ |
... via CWM, before the installation of course I wiped the Z, that nothing can go wrong ... I thought (backup?) ... The installation went smoothly, rebooted from the recovery and all i got was a .... Bootloop.
And here I am hanging tight since noon today.
Phone starts ... xperia logo appears, restart ... xperia logo appears, restart etc, etc. I thought I might still'm coming back into CWM, but None, no green LED on boot, if this is so, one should press on to the Volume + button to get into CWM ... doing nothing but looping again and again.
So i waited all day long until the battery was empty. After that i connected the Phone for hour to the charger. After an hour of loading time i tried to turn the phone back on ... But still no green LED .... Bootloop continue.
So i let the battery empty iself again. This time I connected the Phone via USB without switching on. Started the Sony Flashtool pressed the Volume- key and the Xperia connected to the Software, but due the Locked Bootloader i can´t to nothing.
That´s what i have been tried to bring this thing back to Life ...
Hope that anybody can help me get rid of this Silly situation
and BTW: SORRY FOR MY BAD ENGLISH !!!

julianoo said:
Hello dear Community,
the prehistory ... about 2 weeks ago I get rid of my S2 and switched to the Xperia Z and I`am completely satisfied.
Because of my pre-"experience" with the S2, various Customrom's, Root and CMW I chose this day for these steps in the Xperia Z .
Got this in the course of the day and I Rooted the Phone and installed the latest CWM Recovery (bootloader locked). So far everything is working fine right after installation, I done a backup of my current StockFirmeware, if something goes wrong to have a backup ready.
After the Backup I Flashed this ROM
[ROM] [XZ] [07/03] Xperia KA02.2 Z Revolution ™ |
... via CWM, before the installation of course I wiped the Z, that nothing can go wrong ... I thought (backup?) ... The installation went smoothly, rebooted from the recovery and all i got was a .... Bootloop.
And here I am hanging tight since noon today.
Phone starts ... xperia logo appears, restart ... xperia logo appears, restart etc, etc. I thought I might still'm coming back into CWM, but None, no green LED on boot, if this is so, one should press on to the Volume + button to get into CWM ... doing nothing but looping again and again.
So i waited all day long until the battery was empty. After that i connected the Phone for hour to the charger. After an hour of loading time i tried to turn the phone back on ... But still no green LED .... Bootloop continue.
So i let the battery empty iself again. This time I connected the Phone via USB without switching on. Started the Sony Flashtool pressed the Volume- key and the Xperia connected to the Software, but due the Locked Bootloader i can´t to nothing.
That´s what i have been tried to bring this thing back to Life ...
Hope that anybody can help me get rid of this Silly situation
and BTW: SORRY FOR MY BAD ENGLISH !!!
Click to expand...
Click to collapse
You can try Sony Update Service.

Thank´s for your fast reply,
git my Problem solved
Wrong version of Flashtool was installed, so i downloadet the beta2 out of the Forum and now .... my Phone is back Alife

For those who have the same issue, try too re-flash the firmware following the procedure below :
1/ Follow the procedure for flashtool
Tick erase data if it still does not work
2/ Wait for flashtool to tell you to conned your Xperia Z
When it does get ready to connect it (step 3)
3/ Wait for you bootloop cycle end
--> Wait for the screen to turn black
--> Once it's black press and hold volume down
--> Connect your Xperia Z to PC
Step 3 must be done really quickly before the bootloop cycle restarts.
Hope this helps !
if it does press thanks button

Thank u
I did this procedure and it worked
My xperia z connected to pc in flashmode in step 3
And i flashed kernel and rom after that
Thank u very much

[Q] Xperia V - Reboot loops and no solution yet

Hi XDA-Members
I try to remember what i did exactly step by step.
1. unlocked bootloader (easy stuff)
2. installed vKernel-Xperia for CWM
3. installed Smart Xperia™ ROM
after a reboot this gave me a white triangle with blue progressbar below. I let it run some hours as it was mentioned to be a filesystemfix and you just have to wait. But it never ended (4h waiting time)
4. reflashed stock ftf 9.1.A.0.490 with flashtool
5. after reboot same triangle stuff.
6. relocked bootloader.
7. flashed with seus (came up with 9.1.A.1.140). Now random reboots. I can reach main startscreen of my phone, maybe reach settings, but then screen looks like fading away and reboot. After reboot and maybe another two minutes another screenfadeaway and reboot again. This does repeat until i pull battery.
8. unpacked the seusfiles with flashtool and created ftf with it and flashed this. Same stuff again. Screen fades away and reboot. Battery should have enough charge, as i have access to external charger.
Another thing i noticed is that when i turn the phone off (via normal menu) then it seems to shutdown, but when it usually should turn off the screen it just does a reboot.
Does anybody know what to do or had similar problems? Phone did run fine until then, never had sod or reboots before.
Regards,
leosmutter

I have the same problem, when I connect it to the charger I have no reboots, is it the same for u? Have u ever encrypted ur device?

Most probably faulty battery.

peetr_ said:
Most probably faulty battery.
Click to expand...
Click to collapse
my problem was a faulty battery, a new battery fixed the random reboot problem.

Sony Xperia SP stuck on Sony logo screen, can't open recovery, flashtool also fails

Having gotten a spare Xperia SP, I decided to venture into the realm of flashing custom ROMs. This was the first time I did anything of this sort with an Android device. So, here is what I did to it today:
At first, I successfully rooted, installed recovery and flashed CM12. After fiddling with it for about an hour and not finding anything super exciting, I decided to try out other ROMs. I did a facotry reset, wiped the data and cache, and was about to flash CM11 (I forgot that it required an unlocked bootloader, which I don't have, and the recovery console told me so). Maybe at this point I should have just reflashed CM12, but I chose (not even sure why at this point) to exit recovery instead. After this, the phone keeps getting stuck on the Sony logo (although on the second attempt to turn it on, it did display a screen showing that wrench icon, indicating some sort of configuration activity going on, but never moved past that either). I tried flashing two different stock ftf roms with flashtool, both fail with this error: Processing of system.sin finished with errors. One of them will cause the phone to shut off after about a minute on the logo instead of remaining stuck on it indefinitely.
Maybe I should mention that this phone did not exactly work flawlessly for some time, even before I started experimenting with it. Here are the main things that I can remember it doing:
-Lags on even the basic functions, apps often crashing, despite doing a very recent hard reset.
-Battery drains very fast sometimes (like going from 55% to 0 in about 2 hours with almost no usage).
-A few months ago, it would periodically freeze and reboot itself, but that problem seemed to disappear with time.
Did I do something stupid to that phone, or are there internal/hardware problems that have manifested themselves in this way? I won't be horribly upset if I killed it (after all, knowing that something of this sort may happen was exactly the reason why I was not doing all this on my main phone), but I certainly would like to get it back up and running.

Download Flashtool v0.9.18.6 from official site.
Option 1: Flash stock.
or,
Option 2: Flash tangerine-7.1.elf via 'fastboot mode' to directly get TWRP, then flash any ROM you want.
https://dl.cubeserver.eu/TechnoSparks/tangerine-stuffs/tangerine-7.1.elf

nandan21 said:
Download Flashtool v0.9.18.6 from official site.
Option 1: Flash stock.
or,
Option 2: Flash tangerine-7.1.elf via 'fastboot mode' to directly get TWRP, then flash any ROM you want.
]
Click to expand...
Click to collapse
Thank you for your reply. I have a few questions:
I downloaded the flashtool version that you mentioned (from the official site), but avast detected malware in it. Should version 9.19.8, the one I tried yesterday, work fine?
What is exactly considered "stock rom"? Is it exclusively the version your phone came with, or is it firmware of any version/carrier branding, as longs as it is made for your phone model by the manufacuter?
It looks like my phone actually won't stay in flash mode. I select fastboot mode in flashtool, a window pops up asking me to plug in the phone. I press the volume down button and plug it in, the LED glows bright green, but nothing happens in flashtool. After a few seconds, the LED goes red and the Sony logo appears on the phones screen (as if it was going to turn on), and my computer makes a sound as if the phone was ejected. The phone shuts off a minute later, goes into flash mode again, and the cycle repeats.

UPDATE
Nevermind everything I wrote before, I was able to successfully re-flash stock. Turns out I did in fact have some crappy version of flashtool that didn't work, and I found anolder version without malware.
Strangely, the infected flashtool version was the one I dowloaded from the official site... Something is fishy here.
Anyways, thanks a bunch for your help!

MrDroid15 said:
Thank you for your reply. I have a few questions:
I downloaded the flashtool version that you mentioned (from the official site), but avast detected malware in it. Should version 9.19.8, the one I tried yesterday, work fine?
What is exactly considered "stock rom"? Is it exclusively the version your phone came with, or is it firmware of any version/carrier branding, as longs as it is made for your phone model by the manufacuter?
It looks like my phone actually won't stay in flash mode. I select fastboot mode in flashtool, a window pops up asking me to plug in the phone. I press the volume down button and plug it in, the LED glows bright green, but nothing happens in flashtool. After a few seconds, the LED goes red and the Sony logo appears on the phones screen (as if it was going to turn on), and my computer makes a sound as if the phone was ejected. The phone shuts off a minute later, goes into flash mode again, and the cycle repeats.
Click to expand...
Click to collapse
Use flashtool 0.9.19.8 because that is what everyone is recommending now, Stock rom defines as what it originally comes from your phone which is manufactured by sony. To get into fastboot mode turn off your phone by taking off the cover off your xperia sp and use a pin or pen to press into a small dot and you will get 3 vibrations.
This guide is not written by me, so give credit to chris10286
Step 1. Download a kernel with twrp embedded im sure I used dooms kernel as far as I remember. There are many others just do a simple google of xperia sp kernel with recovery.
Step 2 . take phone case off the back hold button in on lower bottom for 10 seconds you will get 3 vibrations . good leave it at that.
Step 4 . open flashtool let it load completely. Now plug USB into your phone also have it into your PC ! Whilst plugging in hold down volume button to enter flashmode your phone should be green . hold up for fast boot mode which is blue either too let's you flash a kernel but fast boot mode requires "elf" kernel.
Step 5. Locate kernel install and then boot phone up whilst press the volume up button as its booting recovery mode will be accessed now flash rom of your choice or use Sony PC suite to go back to stock. Make sure you have stock kernel and bootloader locked or else it won't let you..
Use this thread to help you since i had the similar problem which involved my phone: http://forum.xda-developers.com/showthread.php?p=63660062#post63660062
If none of my methods work please ask zenith to help you or ask anyone in the xperia sp forum to help you since im not a developer but ran into a similar problem to yours.
I hope this helps you out in someway as it did me good luck.
Thanks Nandan

Thank you, I very much appreciate that you took the time to write this long post to help me out. As I mentioned in an earlier post, I found a solution to my problem - by using flashtool 9.18.6 (the one that wasn't working was actually newer).

HELP! My Xperia Z CAN'T be unbricked

Hello all,
I already thank each and everyone of you willing to help/answer because I am truly desperate right now.
Id like to note that my phone (C6603) is rooted and the bootloader unlocked (i'm not sure though), and the internal storage was 75% full...
Here is the problem :
- I was using my phone as usual yesterday, then suddenly the phone power off, shows the hazard logo (the triangle with tools in it), as if it were installing an update. It lasted for like 5 seconds, then the phone rebooted.
- After the reboot, the phone was laggy as hell. And as it lagged, it shutted down and rebooted.
- During the reboot the phone was doing the "optimizing x/264app" thing. That optimization lasted for about 30minuts. Then the phone booted, but was laggy. I tried to go to settings but couldn't open anything in it, I couldn't even scroll. Then the phone rebooted again.
- After numerous reboots and lags, the phone couldn't get past the Optimization step anymore.
- I tried to repair with Sony Companion, but it said that it couldn't find any software for my device (even though I waited for 2 hours for the download - slow internet here).
- I tried to reflash the stock rom I had in the phone: C6603_10.7.A.0.222_UA.ftf (I checked "wipe userdata" because I wanted to clean the phone anyway)
- The flashing went fine. I turned on the phone, but on screen where you usually choose the language, it freezed and rebooted.
And there we are. Stuck in infinite reboot and "optimizing" again.
I tried to reflash the ftf file but Flashtool wasn't able to do it anymore, it said "Processing of loader.sin finished with errors."
Please tell me there is a solution other than trash this phone. Please.
Thank you.

need help, regarding xperia T lt30p cant turn on

hello everyone!
i have a few questions. and i have done my research yet i still find no solutions so i will ask here
this is my story...
-root,unlock bootloader,flash cm12 android 5.0.1, ran cm recovery
-running fine for around 2 weeks.
-in those 2 weeks there has been times where phone drained to 0 its battery, then charged it then it was fine
-suddenly one day. charged it after it drained completely. then wont turn on.would boot up to 'sony' screen then repeatedly reboot and do the same thing again.
-could enter recovery, but when trying to reflash rom, phone would reenter boot loop
-have tried charging for days.
-have tried removing battery, same thing
-then used flashtool, relocked bootloader, reflashed stock firware, now cant get into recovery, flash successful, yet phone still cant turn on pass sony screen.
is it a battery problem?

just to add, ever since the first time it started having this problem, i could never get the phone to turn on at all without plugging it in .

Hi Jetdin
had the same problem with my XT a year ago, when a powerbank somehow "nuked" the battery-logic... After that, I had the pleasure to know what a deep-discharge feels like :-/
To revive my XT, I had to replace the Firmware... I did it this way, maybe you can try a "factory reset", maybe it already works out for you...
1. loading it (turned off) 24h with original recharger (don't try to turn it on)
(1a - if you can reboot it to save apps, data, files - do it)
2. reboot into TWRP - and do a factory reset
...and try your XT; with luck, this already solved your problem... if not:
3. get the new image of your choice - i downloaded whiteneos 12.1 - works like a charm... and copy it to an sd-card
4. after (re)loading the XT - boot into TWRP - and install the new image...
...reboot and hope this solved the problem...
Good luck!!
Edit:
that it only stops at the sony-logo sounds like "operating system not working" - maybe a "higher" OS-version will do the trick?

Thanks for the reply theunlucky.
I have tried most of those.
The cm12 was on Android 5.0.1
The stock firmware for the Xperia T only goes up to JB huhu

Jetdin said:
Thanks for the reply theunlucky.
I have tried most of those.
The cm12 was on Android 5.0.1
The stock firmware for the Xperia T only goes up to JB huhu
Click to expand...
Click to collapse
you cant get pass the sony logo?
unlock your bootloader again
1. download whiteneos cm
2. extract the boot.img and flash it via fastbootmode
3. reboot
4. if you see a led hit vol + ( or vol - ) several times until the led color changes
5. now you should be in recovery... try to flash cm12.1 from whiteneo and reboot
Sent from my Xperia T using XDA Free mobile app

I can do that with a locked bootloader is it sir?
How do I relock my bootloader?or do the steps u give also unlock the bootloader?sorry for all the Qs