Xperia Z2 keeps bricking no matter rom or kernel - Xperia Z2 Q&A, Help & Troubleshooting

2 months ago I unlocked the bootloader and flashed a rom, everything went fine until 1 month ago when it stopped without a reason. Restart using the red button because nothing else worked, repaired it with the Xperia companion. after that it kept hard shutting down and it won't respond to the red button in the first tries to restart(10 mins of pressing the red button), I have to try multiple times to boots back. it workes for a day or so if i flash any rom but then it hard shuts down again and i have to flash a rom again. Any ideas?
edit: i might add that i used flashtool and when it hard shuts down fastboot or anything wont work

Clean flash a stock rom using flashtool v0.9.18.6

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Stuck on boot loop with WLOD

So Ive been on M&M Miui Rom for the past 6 months with no problems. Just this morning tho, I received a call, and as soon as I hung up, phone froze. No biggie... Pulled out the battery, pop it back in, and it wouldn't boot. It gets stuck at the boot screen logo (i was on ckernel at the time) and in about 5 secs screen goes blank and and WLOD appears, and goes into a boot loop. I then flashed other kernels but with no luck (I have unlocked boot) I also tried to connect it back to PC Companion but wont read it. I also flashed the locked boot tft and pc companion still wont take it Any ideas on what I can do?!!?
ratmkicksass said:
So Ive been on M&M Miui Rom for the past 6 months with no problems. Just this morning tho, I received a call, and as soon as I hung up, phone froze. No biggie... Pulled out the battery, pop it back in, and it wouldn't boot. It gets stuck at the boot screen logo (i was on ckernel at the time) and in about 5 secs screen goes blank and and WLOD appears, and goes into a boot loop. I then flashed other kernels but with no luck (I have unlocked boot) I also tried to connect it back to PC Companion but wont read it. I also flashed the locked boot tft and pc companion still wont take it Any ideas on what I can do?!!?
Click to expand...
Click to collapse
Why don't you try to get back to stock firmware by flashing it through flashtool.?
Sent from my X10
Or try to reflash Rom via Recovery or Flashtool.
Sent from my X10s using xda premium
Please read up on recover from soft brick.
Normally flash 2.1 stock and go from there. If flashtool won't find phone, start flash process without connecting phone until prompted then remove battery and replace while holding the back button then connect to pc
~Jaramie
from my LT28at, rooted and eating an Ice Cream Sandwich

is this what they call bricked phone?

So I've got a Xperia X10 mini pro. It had a CM7.2 on it and some nAa kernel. I've downloded another rom and flash it. Everything ok.
When I wanted to reboot the phone after the flashing, CWM said something about some CWM error or something like that. I've ignored it and now the phone gets stuck at the booting process.(powers up, sony ericsson logo apears and nothing happens). If I put the battery in, it sometimes powers up by himself. I can't get in flashmode(back key, menu key...none of them works). Windows recognises something like SEMC bla bla.. I already have a rooted, flashed Xperia Neo so I'm not exacly a noobie, but I'm a noobie at x10.
So, any thoughts? Thanx alot!
slvjpn said:
So I've got a Xperia X10 mini pro. It had a CM7.2 on it and some nAa kernel. I've downloded another rom and flash it. Everything ok.
When I wanted to reboot the phone after the flashing, CWM said something about some CWM error or something like that. I've ignored it and now the phone gets stuck at the booting process.(powers up, sony ericsson logo apears and nothing happens). If I put the battery in, it sometimes powers up by himself. I can't get in flashmode(back key, menu key...none of them works). Windows recognises something like SEMC bla bla.. I already have a rooted, flashed Xperia Neo so I'm not exacly a noobie, but I'm a noobie at x10.
So, any thoughts? Thanx alot!
Click to expand...
Click to collapse
You need to flash the kernel appropriate to the ROM.
You are on Stock kernel, and not some nAa one, so your last ROM had CWM (or xrecovery) included. This is not included in ROMS that run on nAa kernel because the nAa kernel has got it built-in. That's why it disappeared when you installed a new ROM, now find the kernel that belongs to it.
I can't flash any kernel, any rom or anything because the phone can't get connected to PC, no flashmode, no nothing. The led isn't blinking or anything not even when I connect the charger.
slvjpn said:
I can't flash any kernel, any rom or anything because the phone can't get connected to PC, no flashmode, no nothing. The led isn't blinking or anything not even when I connect the charger.
Click to expand...
Click to collapse
If you take out the battery it works sometimes you say, so take out your battery, f it powers up and gets stuck on the SE Logo, connect it to your pc, press power and home buttons together to get a hard reboot, as soon as the screen goes black, press the back-button to get into flashmode. ofcourse make sure your software is asking for flashmode before you do all that.
what I mean by powering up by himself is that it acts like I'm powering it up but it still get's stuck at se logo. I'll try the hard reboot thingie.
PLEASE try this.
remove your battery.
use flashtool to flash the 2.1 firmware of SE. or use SEUS.
connect your phone to the PC and be ready for flash mode.
hold the back button.
then insert the battery while holding the back button.
it will go to flashmode.
then start flashing the firmware.
afterwards you will be reverted to 2.1 eclair.
connect to usb debug
then root your phone using flashtool.
unlock the bootloader using s1tool.
flash the nAa kernel using flashtool.
put the zipROM on your SDcard.
enter the cwm recovery.
wipe data/cache/dalvik cache then flash the rom.
if you encounter an error on flashing the rom e.g(you experience flashing in just a very short time, then the rom is not flashed) format your SDcard then redo the flashing.
I hope this helps.
PS. on some cases, when your phone is bricked. you can directly flash the nAa kernel then flash the rom.
---------- Post added at 09:00 AM ---------- Previous post was at 08:57 AM ----------
How old is your X10minipro? I'm asking this because of your LED notif lights are not working. you maybe need to read this thread. http://forum.xda-developers.com/showthread.php?t=1935124
I after some research I supose I've deleted the recovery( xrecovery area). For those who say to press any combination of keys it doesn't work.
I got the phone in service, they said it needs flash but the gay phone wont comunicate with the pc so they didn't promise anything. I will return with news.
slvjpn said:
I after some research I supose I've deleted the recovery( xrecovery area). For those who say to press any combination of keys it doesn't work.
I got the phone in service, they said it needs flash but the gay phone wont comunicate with the pc so they didn't promise anything. I will return with news.
Click to expand...
Click to collapse
Yes, I told you that you removed xrecovery, because it was included in the ROM that used your stock kernel. You then flashed a ROM that needs a custom kernel, and it is included in the kernel then, so not in the ROM anymore. That's why you lost it. but that has nothing to do with flashmode however
thats the reason I've got it to service. Something wrong with hardware or boot area preventing the phone getting into flashmode( I suppose)...
Thanks
thanks for the thread now I able to do more than just rooting more save
The X10 mini is up and running. He had recovery and not a CWM(as I have now).
The problems was with the USB port, and it still is but I/ve managed to get it connected with Flashtool after removing and putting back the battery while holding he back key .
After 2 service shops and 2 weeks of waiting they both said to me "There is a comunication problem with the phone. Sorry!"
So, if anyone has problems like mine, they should get their usb port changed(5-10Euros) or try for as much as they need to get the phone connected( I tryied for almost 1 hour to get the green led and another half hour to get a stable connection as it whould get in flashmode but not being recognized in flashtools PS: changing the position of the data cable by standing up or down/more to the left or more to the right helps ).
Thank you all for the feedbacks!!

Dead Ultra!

Hello,
I picked up a white Sony Xperia Z Ultra two days ago. Yesterday it died because of my own stupid fault.
So, I got it second hand. Everything working fine, but, it had CyanogenMod 12. Only I noticed it was quite buggy with phone calls, WhatsApp, etc. So I wanted to flash a stock ROM on it.
Using Flashtool I tried flashing it, no success. So then I decided to put CyanogenMod 10 on it, given I heard it was stable. I thought if calls and whatnot are all stable I don't really care.
I booted into recovery and flashed it, and now it won't start. It's stuck on the Sony logo, the LED is purple but turns to orange.
Also I can't get into recovery. I tried recovering using Flashtool, but I get a loader.sin error.
It does respond with 3 vibrations when I press power + volume up.
On power + volume down my phone gets connected to my PC, but disconnects itself and boots up, or atleast tries to, but, stuck on logo.
Sony Companion doesn't recognize it either.
Right now I am at the end of my rope, given I just got it two days ago, and I enjoyed the phone for like 4 hours...
Please, can somebody help me? I searched the forums for hours.
SwitchTheWolf said:
Hello,
I picked up a white Sony Xperia Z Ultra two days ago. Yesterday it died because of my own stupid fault.
So, I got it second hand. Everything working fine, but, it had CyanogenMod 12. Only I noticed it was quite buggy with phone calls, WhatsApp, etc. So I wanted to flash a stock ROM on it.
Using Flashtool I tried flashing it, no success. So then I decided to put CyanogenMod 10 on it, given I heard it was stable. I thought if calls and whatnot are all stable I don't really care.
I booted into recovery and flashed it, and now it won't start. It's stuck on the Sony logo, the LED is purple but turns to orange.
Also I can't get into recovery. I tried recovering using Flashtool, but I get a loader.sin error.
It does respond with 3 vibrations when I press power + volume up.
On power + volume down my phone gets connected to my PC, but disconnects itself and boots up, or atleast tries to, but, stuck on logo.
Sony Companion doesn't recognize it either.
Right now I am at the end of my rope, given I just got it two days ago, and I enjoyed the phone for like 4 hours...
Please, can somebody help me? I searched the forums for hours.
Click to expand...
Click to collapse
First of all, let me clear that;
1. The 3 vibrations are related to hard reboot, so forget about it.
2. loader.sin error usually appears when ALL the drivers isn't installed properly.
3. Finally,
your phone connects for a while after pressing volDN+connect USB.
This means Drivers isn't installed on your PC.
Solution:
First of all, install essential drivers to your PC.
Navigate to Your Flashtool folder (where you have installed) and then open DRIVERS folder. Install it for your phone and CHECK boxes (Xperia Z ultra, Fastboot, Flash mode).
Now,
In Flashtool select your downloaded .FTF and flash it.
Hope the above guide helps you and your phone gets a life.
Regards,
hitman-xda
I found out what the problem was.
All the drivers were installed correctly and so on and so on, but, apparently, the USB cable was just messed up... I have another phone here, a Samsung Galaxy Mega 6.3, and that one can't connect either, only charge for some reason.
Used a laptop with another USB cable and all worked, so now I am finally enjoyed my fixed Z Ultra with Lollipop. Great phone so far~

Sony Xperia J boot problems

Hello,
Some days ago I started to have some kind of problems with booting my Xperia J. It started that my phone suddenly soft-brick and I was unable to start it, then I read that I have to Flash it with PC Companion, I did that, Companion reflashed the whole system, didnt work, then, I tried to Flash it using FlashTool didnt work. Phone vibrates on startup. After all these tries, my phone, on boot-up show nothing just black screen and the green led blink 2 times. Please help, thank you !

Help! Xperia Z2 (D6502) Phone not booting. (Battery Problem)

My device is not powering on because it shows that the battery level is low even though it's not.
A couple days ago my device just powered off without a prompt or anything. I was using my browser and all of a sudden it powered off. I tried to turn it on but got nothing. Then I connected it to the charger and the display showed the battery icon and the LED showed red. I tried powering on then but it wouldn't start. The Sony logo would come up and then go off again. This happened a couple times and I connected and disconnected it from the charger a couple times and after a moment it started normally. It happened again later but started back up after connecting it to a charger. The next day it happened again with the Sony logo showing and turning off again continuously and all the while the LED is red. Blinking red twice, showing the battery icon, then the Sony logo and turning off again. But now its not showing anything. I connect it to a charger which shows a red battery icon for a few seconds and then black screen but with red LED. I had LineageOS rom installed so I thought to flash stock ROM again which might solve the problem but now I can't get the device in flashmode to flash the ftf.
(IDK if this is relevant or no but a year and maybe half ago I had a problem with the battery. The phone took about 5-6 hrs of charging and discharged in 4-5 minutes. I went to the service centre and they told me it was a software problem which they fixed.)
Can anyone suggest on what to do? Any help will be appreciated.
qusai_r said:
My device is not powering on because it shows that the battery level is low even though it's not.
A couple days ago my device just powered off without a prompt or anything. I was using my browser and all of a sudden it powered off. I tried to turn it on but got nothing. Then I connected it to the charger and the display showed the battery icon and the LED showed red. I tried powering on then but it wouldn't start. The Sony logo would come up and then go off again. This happened a couple times and I connected and disconnected it from the charger a couple times and after a moment it started normally. It happened again later but started back up after connecting it to a charger. The next day it happened again with the Sony logo showing and turning off again continuously and all the while the LED is red. Blinking red twice, showing the battery icon, then the Sony logo and turning off again. But now its not showing anything. I connect it to a charger which shows a red battery icon for a few seconds and then black screen but with red LED. I had LineageOS rom installed so I thought to flash stock ROM again which might solve the problem but now I can't get the device in flashmode to flash the ftf.
(IDK if this is relevant or no but a year and maybe half ago I had a problem with the battery. The phone took about 5-6 hrs of charging and discharged in 4-5 minutes. I went to the service centre and they told me it was a software problem which they fixed.)
Can anyone suggest on what to do? Any help will be appreciated.
Click to expand...
Click to collapse
this might seem irrelevant but trust it isn't, if you have the TA partition already backed up you should restore it, when you do your problem would be solved, I had same issues, and it turns out that the TA partition contains everything the phone should do to boot up, and what to do, its like a blueprint that the phone follows, I restored the phones TA partition and everything was fine again, flash advanced kernel TWRP via fastboot in flashtool, and instal a stock firmware from there and as soon as you can boot the phone in the system restore the TA partition and flash stock ROM via the Xperia Companion, Thats exactly how I solved my issue
killerjoy01 said:
this might seem irrelevant but trust it isn't, if you have the TA partition already backed up you should restore it, when you do your problem would be solved, I had same issues, and it turns out that the TA partition contains everything the phone should do to boot up, and what to do, its like a blueprint that the phone follows, I restored the phones TA partition and everything was fine again, flash advanced kernel TWRP via fastboot in flashtool, and instal a stock firmware from there and as soon as you can boot the phone in the system restore the TA partition and flash stock ROM via the Xperia Companion, Thats exactly how I solved my issue
Click to expand...
Click to collapse
Well, thanks for the response. I'll be without WiFi for a couple days and will try your method then. I'll let you know if it works out.
Thanks again!
qusai_r said:
Well, thanks for the response. I'll be without WiFi for a couple days and will try your method then. I'll let you know if it works out.
Thanks again!
Click to expand...
Click to collapse
Okay I will be checking to see.
killerjoy01 said:
Okay I will be checking to see.
Click to expand...
Click to collapse
Okay. I restored the TA Backup, flashed stock firmware but now the device won't boot up. It's stuck on that blue wavy screen. I waited for about half an hour but no change.
qusai_r said:
Okay. I restored the TA Backup, flashed stock firmware but now the device won't boot up. It's stuck on that blue wavy screen. I waited for about half an hour but no change.
Click to expand...
Click to collapse
1. hold the off button and the volume button for atleast a minute. (ignore any vibration)
2. charge your phone until the green light turns on. (make sure phone is off, don't charge while its on the blue screen)
3. turn on your phone
killerjoy01 said:
1. hold the off button and the volume button for atleast a minute. (ignore any vibration)
2. charge your phone until the green light turns on. (make sure phone is off, don't charge while its on the blue screen)
3. turn on your phone
Click to expand...
Click to collapse
Still not working man! Continuous blue screen.....
qusai_r said:
Still not working man! Continuous blue screen.....
Click to expand...
Click to collapse
are you rooted or on pure stock ? if you installed the ROM using flashtool please go to Xperia Companion and try, if not unlock your bootloader again flash Advanced Kernel, and flash a Custom ROM lets say (RR 7.1.2) and see if the phone boots up
killerjoy01 said:
are you rooted or on pure stock ? if you installed the ROM using flashtool please go to Xperia Companion and try, if not unlock your bootloader again flash Advanced Kernel, and flash a Custom ROM lets say (RR 7.1.2) and see if the phone boots up
Click to expand...
Click to collapse
Flashed RR 7.1.2 but its stuck on bootloop. Same with Carbon Rom. Only lineage seems to work.
Any ideas?
Edit: Installed RR again.. it booted up
qusai_r said:
Flashed RR 7.1.2 but its stuck on bootloop. Same with Carbon Rom. Only lineage seems to work.
Any ideas?
Edit: Installed RR again.. it booted up
Click to expand...
Click to collapse
now if you would like to go back to stock flash the TA backup and don't reboot, plug your Phone to your PC and open Xperia Companion and click repair phone and go with the instructions, I hope I was of help

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