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[Q] Please help my sony won't boot up

I'm using sony xperia V and after flashing a cyanogenmod rom which installed perfectly, until I select reboot and the screen
turns black and no matter which button combination or whatsoever I can't boot up.
The only things that happen is:
if unplugged, pressing the power button will vibrate the phone and green LED flash for a second
if plugged into computer the green LED flashes for a long time. Holding the volume+ button before plugging in will flash a blue LED light for some time
Both plugged and unplugged, the screen shows nothing at all, which means can't enter recovery mode, safe mode or download mode.
Is there anyway I can solve this? Or I can only buy a new phone or act dumb at the sony store.
Thanks in advance and sorry for any trouble
[Edit]I finally found a way to solve this problem after hours of frustration. Thanks to this amazing website which I couldn't post it here due to being a new member, which I could say it's from a website named androidgadgetmatic, really turned a completely useless brick into a perfectly working phone again. The only problem left (which happened before bricked) is that my phone couldn't read or even find SD card, any help in this area guys?

Hard Bricked After TWRP Restore

I was restoring a TWRP restore, and it said completed and whatever, but now the phone won't boot or vibrate at all. I've tried plugging into computer, holding volume buttons, nothing works! The only thing that happens is the led turns red when is plugged into charger and power button is being held, otherwise it blinks red. How do I fix the bad restore?
Sent from my D6616 using Tapatalk

qais9 said:
I was restoring a TWRP restore, and it said completed and whatever, but now the phone won't boot or vibrate at all. I've tried plugging into computer, holding volume buttons, nothing works! The only thing that happens is the led turns red when is plugged into charger and power button is being held, otherwise it blinks red. How do I fix the bad restore?
Sent from my D6616 using Tapatalk
Click to expand...
Click to collapse
Try this...
.
1.Run Companion on you PC
2.Push and hold volume down on phone
3.Connect cable to phone (you will here some kind of sound)
4.Forcing connect phone/tablet on companion
5.Click update or repair phone/tablet
One more thing,just in case install this USB flash drivers (for boot and fastboot) if you can connect to pc companion

gregysk said:
Try this...
.
1.Run Companion on you PC
2.Push and hold volume down on phone
3.Connect cable to phone (you will here some kind of sound)
4.Forcing connect phone/tablet on companion
5.Click update or repair phone/tablet
One more thing,just in case install this USB flash drivers (for boot and fastboot) if you can connect to pc companion
Click to expand...
Click to collapse
just tried that no sound is made when i plugged in

Anyone?
Sent from my D6616 using Tapatalk

Not currently rooted as I see no need (for my usage) on this phone.
Had a similar issue long back with an HTC One X, it first went in to a bootloop one day and then in CWM it showed internal storage as non mountable and finally ended up like yours where it would not turn on. Ended up being a bad NAND I am guessing as they had to replace the motherboard. I think you just had bad luck, just get it replaced.......
However in one last attempt try charging for like a day and try turning it on could even be a bad battery to be honest... though probably you still want to replace it
Option 1:
Plug your phone into your turned on computer with the USB cable and leave it there to charge until the red light comes on (leave for 1-2 hours, more if you feel it necessary), then quickly put it on charge using the wall charger.
Option 2 (not likely to work):
Plug your phone into your wall socket with the USB cable and wall charger and leave it there to charge until the red light comes on (leave for 1-2 hours, more if you feel it necessary), then quickly put it on charge through your turned on computer using the USB cable.
If neither of these work (as dumb as this may sound)turn off your phone and put your phone in the freezer for 15-30 minutes (This is done to discharge the battery, wont break your phone). When you've left it there for your chosen time, try option 1 again. If that doesn't work, turn the phone off again and put it back in the freezer for the same time and try option 2. If they don't work, i'm sorry I don't know how to help you.
Click to expand...
Click to collapse
-Mantenner
http://forum.xda-developers.com/showthread.php?t=2405201
Try the procedure from post #8 from the HTC One X forum above:

Now I have exactly the same problem. Where you able to resolve it?
Edit: There is someone else with the same problem: http://forum.xda-developers.com/z3/help/xperia-z3-dead-wont-charge-blinking-red-t3156982?nocache=1

Power,Volume and camera buttons have all stopped working... and now the phone is off

The title is pretty self explanatory. Noticed when i woke up that neither the power, volume or the camera buttons work. They still clicked when pushed but no function beyond that. The phone its self still worked before i pressed the yellow reset button next to the sim card slot. when i pressed the yellow reset button the phone vibrated and turned off, never to come back on. When i plug it into a charger it still has the LED light except its off so i cant just press the power button to turn it back on. When plugged into the computer, then computer recognises that a device has been plugged in (makes the dun-duh! sound) but the phone is not recognised by either the PC companion or Sony EMMA. Same deal with pulling it into a mac. The Sony mac companion program pops up automatically , it says it does not have any device connected, despite it popping up when i plug my phone in...Ive put adb on my computer and tried adb reboot but again it does not recognise the phone while its off. Is there anything i can do to fix this phone or at least turn it back on? I've spent enough on getting this phone prepared as it is so a DIY fix would be great.any help at all would be much appreciated, thanks

I too am having issues while restarting my z3 after switching power key does not works.
It boots only when I connect it too my pc (still dead) and then press the yellow button(try the yellow button before connecting the pc too),but all the hardware keys works perfectly except the power which is just functinal.

khanjunaid said:
I too am having issues while restarting my z3 after switching power key does not works.
It boots only when I connect it too my pc (still dead) and then press the yellow button(try the yellow button before connecting the pc too),but all the hardware keys works perfectly except the power which is just functinal.
Click to expand...
Click to collapse
No luck unfortunately. When i plug it into the computer the Sony logo pops up and goes to the charging screen. When i press the yellow button just after plugging it in it just restarts and does the same thing. Thanks anyway

That's exactly what happened to my phone last time,managed to get it started after some random trials ( it started using the normal power key after removing it from pc & letting it rest for some time)
Keep me posted if u manage to solve it.

khanjunaid said:
That's exactly what happened to my phone last time,managed to get it started after some random trials ( it started using the normal power key after removing it from pc & letting it rest for some time)
Keep me posted if u manage to solve it.
Click to expand...
Click to collapse
Will do, I've gotten in contact with the sellers and they are happy to inspect the phone for warranty claims to see if I've done anything to it to trigger the breakage, so ill be sending it off tomorrow . You may not be able to answer this but i might as well ask, I got a whole screen replacement for the phone a few months ago as i had dropped it and the screen had smashed etc. The screen replacement all went well. Do you think the re sellers will know/care that the screen has been replaced? Will it impact upon my warranty claim? I don't plan on telling them I've gotten the screen replaced but I'm just worried they'll find out and say my warranty has been voided.

I replaced my phone's speaker from 3rd party,right after that I am having problem to restart the device.
I think Your warranty is probably gone.
Try to flash Ftf file,i didn't cause I don't wanna loose my root.(changing between roms help a bit)

when you open the phone and remove the battery, you can see like some flat wires. those connect all your buttons, screen, loudspeaker and other things to the motherboard. I'd say that the problem is in this flat wires if the buttons do not work. It can be changed but don't try it if you do not have some practical skill since the z3 is not really an easy phone to repair, it's all glued >.<
ps.
this is what i'm talking about, to be clear: http://www.ebay.it/itm/FLAT-FLEX-TA...008493?hash=item2c9efe04ad:g:4QkAAOSwyQtVt5MY

Cenovo mini pc 2 bios reset

Hello people
I made some settings on cenovo mini pc 2 bios and now i have no video exit on hdmi.
When i turn on, looks like working but nothing on tv
The cenovo support don't answer my email
I need to reset bios to defaults
I disconnect the battery for days but nothing...
any help on this?
thanks

Same thing happened to me. What I did was disconnect the battery. Plug in the power while holding the power button for around 10 seconds (maybe more) until the blue light went off. After taking my finger off the power button, I pressed and held the button until the blue light came on and the sucker booted up. Hope that helps.
MWA.

Anybody know how to set the bios to auto start when I plug in? Without physically pressing the power on button? No normal bios configuration that I can see? Any help greatly appreciated
Nikolarasbig said:
Hello people
I made some settings on cenovo mini pc 2 bios and now i have no video exit on hdmi.
When i turn on, looks like working but nothing on tv
The cenovo support don't answer my email
I need to reset bios to defaults
I disconnect the battery for days but nothing...
any help on this?
thanks
Click to expand...
Click to collapse
manderson38 said:
Same thing happened to me. What I did was disconnect the battery. Plug in the power while holding the power button for around 10 seconds (maybe more) until the blue light went off. After taking my finger off the power button, I pressed and held the button until the blue light came on and the sucker booted up. Hope that helps.
MWA.
Click to expand...
Click to collapse

Nikolarasbig said:
Hello people
I made some settings on cenovo mini pc 2 bios and now i have no video exit on hdmi.
When i turn on, looks like working but nothing on tv
The cenovo support don't answer my email
I need to reset bios to defaults
I disconnect the battery for days but nothing...
any help on this?
thanks
Click to expand...
Click to collapse
I also change som video setting in BIOS and had no video on HDMI output.
It is possible to reset it, but I can not tell yuo how. I already did it two times, but each time after two hours of experimentation. You have to play with power button (long holding and clicking) after unplug and plug again power cable. Getting red light is definitely step towards success. I hold your thumbs.

Also need to reset my bios, since my unit is not booting properly, blue led keeps blinking.
Any suggestion?

No boot cenovo minipc blinking led
geoair said:
Also need to reset my bios, since my unit is not booting properly, blue led keeps blinking.
Any suggestion?
Click to expand...
Click to collapse
Hello.
I am the same prblem. No boot, no signal, no bios.
I press 3s and it blinks blue.
I support about 8s that goes off.
i can do nothing more ...

vernvex said:
Hello.
I am the same prblem. No boot, no signal, no bios.
I press 3s and it blinks blue.
I support about 8s that goes off.
i can do nothing more ...
Click to expand...
Click to collapse
Did you solve your problem?

geoair said:
Did you solve your problem?
Click to expand...
Click to collapse
Hello. The pc has restarted. I left it unplugged at night, and in the morning I turned it on and it worked.

vernvex said:
Hello. The pc has restarted. I left it unplugged at night, and in the morning I turned it on and it worked.
Click to expand...
Click to collapse
Have to try that, mine has been unplugged for several weeks now

Hi guys, made a similar mistake apparently.
Story:
Tried to reuse that Cenovo Mini PC II as ioBroker server for smart home.
Installed CentOS 7 onto it, install went fine, first boot = Kernel issue.
Installed Ubuntu 18.04 live server, all went through, first boot = Errors a la "Cannot enable port 1. Maybe the USB cable is bad".
Now i have no USB enabed and therefor i cant use a keyboard and do nothing.
Tried a BIOS setting found in a launchpad, now apparently the system boots very well in Ubuntu till Login screen = but no USB keyboard. Cannot do anything, as SSHD isnt running yet.
xHCI handoff - Disabled
EHCI handoff - Disabled
Click to expand...
Click to collapse
Apparently i disabled something i shouldnt have done.
The tips on resetting the BIOS in this thread here didnt helped yet.
Did anyone come across the actual repeatable way of resetting the BIOS on that Cenovo?

Unfortunately, I’m in the same situation. Does some of you maybe have some tips how to reset the cmos? Already tried by holding the powerbutton & pressing some times, but without success. Hope somebody had a magic tip for me.
Thank your very much!
Regards, Tom

G Pro 2 ... Wrong Flashing. Pls Help.

I have a Lg G Pro 2. Few days back it got bricked by its own( a crazy fact). That time it was showing QHSUSB_BULK. I figured it out as 9006. Took the phone to a local service shop. Today I got it back and found that nothing had happened to the phone, except worse. Now it is not detected by PC, only green light blinks for some time if tried to power on. And then everything is black and cold as death.
I think it have been flashed with wrong ROM. Anybody here can guide me with the test points of Lg G Pro 2 (D838 F350) ? So that I can force it to QHSUSB_BULK ? Or any step by step advice to get it up ?
I am in real need of assistance, and thanks in advance for any sort of help. Best Regards.

I would like to mention that the phone indicator blinks for sometime if I try to power it on, as it does on boot, but nothing else is there. No recognition by PC, no presence in Device Manager. Blinks for sometime, stops, again starts blinking... and this goes on at regular short intervals. The area around the camera gets warm after sometime. Everything loops till I pull off battery.
Now, am I missing something ? Is the problem not as deadly as I am thinking ? Is it soft bricked ?

Hi, I not sure how it got bricked I never brick LG device.
Normally if anything happen we try pull battery out and put it back in, try then to turn the phone on.
Have you try connect to to pc with USB cable, one end of USB connnect to pc and other end connect to the phone. Then try press Power + Volume Up or Power + Volume down, this is to try to get into phone download mode. If you can get into download mode you can flash the kdz file to make it useable again.
Or without the USB cable we want to get to factory reset mode by use hardware method try press:
- Power + Volume Up or Power + Volume down
- If you see LG logo come up release the buttons you press above 1-2 second
- Press again Power + Volume Up or Power + Volume down
- Until it show and ask to use volume up/down button to select choice, say yes
Caution factory reset will delete all data on the phone and reset it as when you bought it new.
- Again it will ask for factory reset, use Volume up/down to choose and select yes for factory reset

turn on the phone and when light is blink press volume up or down button for some time and see if it it is detected as usbhulq?