[Q] Sony Z2 stuck with Sony Logo - Xperia Z2 Q&A, Help & Troubleshooting

I have a Sony Z2 with a locked Bootloeder with root, i tried to install the Rom in this Thread
http://forum.xda-developers.com/xperia-z2/development/rom-pre-rooted-deodexed-zipalinged-t2929194
Everything was working so well, finished installing the rom and then i tried to restart my z2 but i see only the Sony logo, can not switch it off anymore or boot into Recovery mode, the battery is very low, not able to do anything as my Device restart all the time.
Can someone help me or i have to send it to Sony ?

Have you tried flashing a stock rom with flashtool? Assuming you can still access fastboot (hold volume down whole plugging in USB on a computer, it might be volume up if that doesn't work, it slips my mind as to which it is)
Sent from my Xperia Z2 using Tapatalk

I was in the same position. I use flashtool, create anew bundle, flash a new tft and all's good - fone is like new (*^_^*).

You've got your answers already.
And for the future, if you want to turn off the phone while it's in bootloop then hold power button + volume up at the same time and wait few seconds like that.
Sent from Xperia Z2
Luckily not from an iPhone = Yesterdays technology at tomorrows prices

Related

[Q] Xperia P Bootloop (BRICK?)

Hey guys!
I'm not allowed to post this into the development section for the xperia p, so I have to do it here.
I've decided to root my xperia p. So, I unlocked the bootloader and rooted my device following these instructions using flashtool method: http://forum.xda-developers.com/showthread.php?t=1900172. Right after that, I flashed over this kernel: http://forum.xda-developers.com/showthread.php?t=1894463.
I was pretty happy with this setup until I realised, that this kernel still has some bugs that need fixing and is not ready for stable everyday-use. (In my opinion..)
What I did next was flashing back to the stock kernel, which can be found in the same thread in the first post (for people who want stock kernel with custom CWM) and now my p is in a constant bootloop, turning on and off, without showing any logo and not giving me any access to recovery. I can't even initiate fastboot.. WHAT DO I DO NOW? I really need your help with this..
AND by the way, I have a lot of experience in the matter of flashing and android development, but this is the first time I really don't know what to do to fix this issue!
ace.infinity said:
Hey guys!
I'm not allowed to post this into the development section for the xperia p, so I have to do it here.
I've decided to root my xperia p. So, I unlocked the bootloader and rooted my device following these instructions using flashtool method: http://forum.xda-developers.com/showthread.php?t=1900172. Right after that, I flashed over this kernel: http://forum.xda-developers.com/showthread.php?t=1894463.
I was pretty happy with this setup until I realised, that this kernel still has some bugs that need fixing and is not ready for stable everyday-use. (In my opinion..)
What I did next was flashing back to the stock kernel, which can be found in the same thread in the first post (for people who want stock kernel with custom CWM) and now my p is in a constant bootloop, turning on and off, without showing any logo and not giving me any access to recovery. I can't even initiate fastboot.. WHAT DO I DO NOW? I really need your help with this..
AND by the way, I have a lot of experience in the matter of flashing and android development, but this is the first time I really don't know what to do to fix this issue!
Click to expand...
Click to collapse
dont panic if you have boot loop all you need to do is hard reset the phone this is dont by holding power button and vol+ till it vibrates 3 times this will switch the phone off and allow you fastboot to flash cwm recovery again and then you can recover your backup
Xperia P.... has a removable battery right, if I recall.
Remove battery, hold vol up, place battery. Phone should vibrate 3 times.
Keep finger on vol up, shove USB port in. You should get into fastboot.
If you're aiming to go back to stock, then just go into flashboot (vol down), and flash a stock ftf file.
Snowstormzzz said:
Xperia P.... has a removable battery right, if I recall.
Remove battery, hold vol up, place battery. Phone should vibrate 3 times.
Keep finger on vol up, shove USB port in. You should get into fastboot.
If you're aiming to go back to stock, then just go into flashboot (vol down), and flash a stock ftf file.
Click to expand...
Click to collapse
sorry i thort it was hard battery ( my apologies) once you have it in flash mode you can do stock ftf and cwm as you did before
Xperia P doesn't have a removable battery, the innards of the phones are about as accessible as the iphone
MadManMark said:
Xperia P doesn't have a removable battery, the innards of the phones are about as accessible as the iphone
Click to expand...
Click to collapse
Didnt think it did but I don't have one . To the open just follow my first post
Sent from my Xperia Go using xda premium
My bad my bad. Google images got me confused over the U.
have you tried hard reboot ?
keeping d power+ volume up +volume down button pressed until the fone vibrates thrice ?
if this happens that means ur phone can enter into fastboot by connecting the usb while holding the vol up button
and u can flash this kernel
http://forum.xda-developers.com/showthread.php?t=1841613
works pretty good with stock ics firmware
have tried it myself
njoi
and all the best

Bricked Xperia Z tablet

Hey guys,
I've got the xperia z tablet (16gb wifi only)
and I had unlocked it, the other day I saw it finally got an OTA update, so I let it update.
apparently that was a bad idea?, I was stuck with the broken android symbol every time i attempted to start the tablet..
I tried the sony software, the recovery thing it has. That has only made things worse, now the tablet refuses to start whatsoever.
Can anyone point me in the right direction? I'd appreciate it very much.
dempster said:
Hey guys,
I've got the xperia z tablet (16gb wifi only)
and I had unlocked it, the other day I saw it finally got an OTA update, so I let it update.
apparently that was a bad idea?, I was stuck with the broken android symbol every time i attempted to start the tablet..
I tried the sony software, the recovery thing it has. That has only made things worse, now the tablet refuses to start whatsoever.
Can anyone point me in the right direction? I'd appreciate it very much.
Click to expand...
Click to collapse
Tried to flash with fastboot an boot.img from CM or an other AOSP ROM, and then enter recovery...
zeus2602 said:
Tried to flash with fastboot an boot.img from CM or an other AOSP ROM, and then enter recovery...
Click to expand...
Click to collapse
My tablet won't give me so much as an led indicator of it charging.
dempster said:
My tablet won't give me so much as an led indicator of it charging.
Click to expand...
Click to collapse
If your not able to flash with fastboot (connect tablet over usb (push the boot button) an load an image file on the Tablet.
HARD-BRICK!!!
dempster said:
My tablet won't give me so much as an led indicator of it charging.
Click to expand...
Click to collapse
Yould could try and have a look at the following thread:
http://forum.xda-developers.com/showthread.php?t=1849170
Hi
I had the same issues when I flashed the wrong ROM. Nothing worked no power light or anything.
Now I can't remember exactly what I did but I started to press buttons and I'm sure that holing the power button and the vol up for a while made it start again and it displayed an error and then went into flash mode .
As I said I'm not sure which buttons I pressed but I know that I held them in for a while
Try using Flashtool... Im pretty sure you can rcover it by flashing a FTF file.
Z Ultra Z1 hardbrick
http://forum.xda-developers.com/showthread.php?t=2646405 :good:
So there is hope. :highfive:
I think I found the testpin. My sgp311 has started to blink after being dead since November, when I bricked it.
I don't have the device pack though.. Do you have any clue on how to find it? I think I just need the sgp311 SEMC package to resuscitate it now... Hopefully...
Sent from my Galaxy Nexus using Tapatalk 4
get the stock ftf file and flash it using flashtools, I was in a bootloop and it worked
i know its an old post but i have to try
i m in a boot loop and i want to find the Fed file in order to do a fastboot....
Can someone give them??
I test my tablet SGP321 with many ROMs.. I end up going to boot loop... Crashes and stuff but I always recover from it.
The things I do before doing anything insane with my tablet
1. Take backup off apps/data
2. Always enable debugging and Unknown Sources
3. Keep the backup of the ROMs
4. Always have the xperia flashtool on my computer
Here's what you can do..
Press and hold the Power button and the Volume Up button for ten seconds until you see a white light flashing three times. While doing this somewhere around in 5 seconds you'll see white led flashing once, but keep on pressing those buttons till it flashes next three times.
After that your tablet will be turned Off.
You can put your device in flash mode and flash a new ROM from Xperia flash tool.
If you get the error "Unknown sources and USB debugging must me enable for flash mode, then your option can be to flash the ROM from fastboot.
Download a ROM (CyanogenMod or any with custom recovery).
Flash the boot.img via fastboot and reboot your device.
Once done you should see a led lit up while the device is booting (pink/magenta color in case of CyanogenMod).
Press the volume up/down button and you should be able to go to recovery mode.
From here you can recover your device easily
And before you do anything make sure you've charged your device well.
Good luck

Phone stuck on boot loop, can't recover.

I was trying to root my device with the help of this http://forum.xda-developers.com/xpe...ck-d6502-03-23-4-0-546-completeguide-t3171219. I'll admit right now that I have no experience in such manners and this is my first root.
Anyway, after successful flashing of device I unplugged it after closing Flash and turned it on only to find it in a constant loop where it just freezes at those waves and starts over. This is too early for the recovery mode option but I tried to press volume up or down repeatedly and the phone just ignores my attempts. PC can't read it normally but it sees it as a 'hidden' file under the name of Removable Device.
In a moment of panic I pressed the little emergency red button next to the charge port and to no avail , nothing changed or got worse, I don't think it can even if it tried. (I'm still worried this step might have ruined everything).
Please help!!
------------------------
EDIT: Fixed. Sorry for wasting your time.
I have the same probleme ...can anyone help Us please? :'( :'( :'(
I hope that flashmode and fastboot work.
If so, turn the phone off. Prepare flashtool with an ftf (keep wipe data checked), press flash and then connect your phone in a flashmode.
Sent from Xperia Z2
Luckily not from an iPhone = Yesterdays technology at tomorrows prices
No need to be in panic
simply download and flash any ftf files for your device model number by using flashtool. Please read properly how to install and use flashtool
http://xperiafirmware.com/8-firmware...peria-z2-d6503
ask for any question

Did i Brick my Phone ?

something went wrong when i was trying instal the latest version of TWRP , i had TWRP 2.8.4 already installed, so, i tried install the newest version through of TWRP, now i can't boot my phone, when i try to start , a little vibration happens, i tried do a repair with but pc companion are unable do help me (because bootloader alterations, i guess) can anyone give me a little help ?
I still get a blue light when i connect my cellphone on the computer pressing the volume button
And a red light when i try charge the phone
Edit: BTW, i have the Brazilian version (D6543)
It may be soft brick. Don't worry. Download via XperiFirm the latest rom for your D6543 and flash via Flashtool (to get into Flash Mode click and push vol- and then connect to USB and hold vol- until Flashtool will start flashing)
Bruce666 said:
It may be soft brick. Don't worry. Download via XperiFirm the latest rom for your D6543 and flash via Flashtool (to get into Flash Mode click and push vol- and then connect to USB and hold vol- until Flashtool will start flashing)
Click to expand...
Click to collapse
Exactly, that's what you have to do.
It seems like you've flashed twrp from the other phone.
Sent from Xperia Z2
Luckily not from an iPhone = Yesterdays technology at tomorrows prices
Worked!!!... Kinda, now he boots, iven install the apps, but wen its time to select the language, the phone restarts by himself, wen i try enter in fastboot mode again, i now can see the recharge battery icon.
i guess i'm at halfway to solution my problem, this saturday i will have more time to work on him, thx for the tips, fellows
now its all fine, again, thx for the help

Can't access boot loader in Xperia z2

After installing an application, my phones screen turned off and now I can't access any part of my phone. I tried to go to boot loader but bootloader is locked so I can't. usb-debugging is off too. is there any particular way for me to get my Xperia z2 back?
please consider that because screen is off, I can't do things like turning usb-debugging on in setting.
thanks in advance for any help.
MehrdadSComputer said:
After installing an application, my phones screen turned off and now I can't access any part of my phone. I tried to go to boot loader but bootloader is locked so I can't. usb-debugging is off too. is there any particular way for me to get my Xperia z2 back?
please consider that because screen is off, I can't do things like turning usb-debugging on in setting.
thanks in advance for any help.
Click to expand...
Click to collapse
Try to hold power and volume up buttons for a 10 seconds until phone vibrate(maybe need more than 10 seconds,try about 15 sec to keep them).If your phone vibrate just realse buttons and power him on.
Allek84 said:
Try to hold power and volume up buttons for a 10 seconds until phone vibrate(maybe need more than 10 seconds,try about 15 sec to keep them).If your phone vibrate just realse buttons and power him on.
Click to expand...
Click to collapse
I did this but still nothing happen
I think you don't need usb debugging to re-flash your software via flashtool.
Sent from Xperia Z2
Luckily not from an iPhone = Yesterdays technology at tomorrows prices
mr.loverlover said:
I think you don't need usb debugging to re-flash your software via flashtool.
Sent from Xperia Z2
Luckily not from an iPhone = Yesterdays technology at tomorrows prices
Click to expand...
Click to collapse
what about boot loader? boot loader is locked too.
MehrdadSComputer said:
what about boot loader? boot loader is locked too.
Click to expand...
Click to collapse
Bootloader will allow you to flash stock firmware.
Sent from Xperia Z2
Luckily not from an iPhone = Yesterdays technology at tomorrows prices
I slove this problem, I reset my phone and when I turn on everything was fine... I flashed same ftf as you when I root my phone.
Thank you all for your helps.
I finally solved my problem using PC Companion.
According to new user rules, I can't post tutorial link here because it is outside link. If anyone is not new here and can post outside link, please tell here then I will send link for him/her to post it in this topic

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