[HELP] Unable to use flashtool and turn it on - Xperia SP Q&A, Help & Troubleshooting

Hi guys. My phone suddenly turn off. im not able to turn it on again.
so i decided to use the hard reset using the back button however it doesn't work at all. So i decide to use the flashtool yet it doesnt work either.
When im trying to connect the phone using volume down + power button then plug in cable it doesn't work. it just virbrate 3 times.
any idea how to fix this?

You only have to push the volume down button and plug in the USB cable.
Don't press the power button!

Gamm86 said:
You only have to push the volume down button and plug in the USB cable.
Don't press the power button!
Click to expand...
Click to collapse
it doesn't work either it only vibrate 3 times

So you can't connect in flash mode, nor in fastboot mode?
Has flashtool worked in the past? If not or if this is the first time you use it, it could be due to missing or wrong drivers.

i used the flashtool before using flashmode however i never tried to use the fastboot.
Will google the tutorial regarding in fastboot and feedback as soon as possible

Press and hold the backside off button till 3 vibrations.
Then try to flash a stock rom with Flashtool. It must work. You can't brick a LBL-ed SP.

air001 said:
Press and hold the backside off button till 3 vibrations.
Then try to flash a stock rom with Flashtool. It must work. You can't brick a LBL-ed SP.
Click to expand...
Click to collapse
i tried that and hole for 10 seconds nothing happen

Where does it even boot up to.. And is there any light when you hold volume down and insert the cable. It Shld be green. There is no need to press the power button at all. Just volume down and plug I'm the cable. Make sure you have to drivers installed.

Fat_boy555 said:
Where does it even boot up to.. And is there any light when you hold volume down and insert the cable. It Shld be green. There is no need to press the power button at all. Just volume down and plug I'm the cable. Make sure you have to drivers installed.
Click to expand...
Click to collapse
i tried all the option that i know. Some people advise to bring it to the nearest sony service center. And also they said maybe the jtag is the last option.

Related

Need some help..phone stuck in recovery mode?

I have the screen where the phone and computer have a ! between...how do I get into download mode from here so I can use Odin??? I've tried the vol up + vol down + power button and also tried using the command 'adb reboot download' and neither of those work......
Try this.
Open Odin
Remove battery/sim/sdcard
Put battery in
Hold only the volume buttons
Plug USB in
If this doesnt work do the process again but only holding up or down, not both at the same time.
flashman2002 said:
Try this.
Open Odin
Remove battery/sim/sdcard
Put battery in
Hold only the volume buttons
Plug USB in
If this doesnt work do the process again but only holding up or down, not both at the same time.
Click to expand...
Click to collapse
Thanks it worked!

[Q] HTC One stuck on bootloop/no hardware keys

Hi, wondering if you guys could help me.
My HTC One is stuck on bootloop. I tried to install a GPE rom with S-ON and now it get's to the first screen of the setup and restarts itself. The problem is the volume keys are defunt therefore I can't get into recovery to flash another rom.
Is there anyway I can force the phone to boot to recovery or to hboot ? I tried to «adb reboot recovery» on boot but with no luck.
Really appriciate any help.
Put it under a light and try to longpress Power and vol-.
HI Guich, thanks for the reply.
I did try what you suggested: shined the flash from another cellphone on the One, at the top where the sensors are, and long pressed power+volume-. If I hold the buttons the phone will just restart endlessly and if I let go of the power button and hold the (defunt) volume- the phone will try to boot as standard.
What would the light do to the phone ? Is it supposed to trigger some of the sensors ?
Thanks!
deerxmoose said:
HI Guich, thanks for the reply.
I did try what you suggested: shined the flash from another cellphone on the One, at the top where the sensors are, and long pressed power+volume-. If I hold the buttons the phone will just restart endlessly and if I let go of the power button and hold the (defunt) volume- the phone will try to boot as standard.
What would the light do to the phone ? Is it supposed to trigger some of the sensors ?
Thanks!
Click to expand...
Click to collapse
His intention was to re-verify whether you were pressing the volume down key and not the volume up key. There are no hidden sensors im aware of. if nobody else can give u a solution, the only choice wud b a motherboard replacement frm HTC itself
deerxmoose said:
HI Guich, thanks for the reply.
I did try what you suggested: shined the flash from another cellphone on the One, at the top where the sensors are, and long pressed power+volume-. If I hold the buttons the phone will just restart endlessly and if I let go of the power button and hold the (defunt) volume- the phone will try to boot as standard.
What would the light do to the phone ? Is it supposed to trigger some of the sensors ?
Thanks!
Click to expand...
Click to collapse
Umh, if you longpress power and vol- it will boot?
Strange.
If you longpress under the light, theoritecally, it have to boot into the bootloader...
raghav kapur that's what I trying to avoid
Guich it boots because the volume button is broken.
I think my only chance is to, some how, force the phone to get into recovery or hboot whilst booting I just don't know how I could do that without the volume buttons.
Just another bit of information.
When I've got the phone connected to the pc, Windows tries to install an MTP device but never gets to finalize the installion because the phone reboots. If I leave the battery flat and then plug it in, with the charging animation on the phone, Windows tries to install an 'unkown device'.
deerxmoose said:
raghav kapur that's what I trying to avoid
Guich it boots because the volume button is broken.
I think my only chance is to, some how, force the phone to get into recovery or hboot whilst booting I just don't know how I could do that without the volume buttons.
Click to expand...
Click to collapse
deerxmoose said:
Just another bit of information.
When I've got the phone connected to the pc, Windows tries to install an MTP device but never gets to finalize the installion because the phone reboots. If I leave the battery flat and then plug it in, with the charging animation on the phone, Windows tries to install an 'unkown device'.
Click to expand...
Click to collapse
Ah, sorry, my mistake.
If you've a broken vol- you don't have a lot of chance...
It's an unknown device because it don't boot.

HELP, needed so badly, Xperia SP Hard Bricked.... please is there someone give help

nice to meet you guys,
i am new here.
it starts with,
when i want to flash new rom it works perfectly fine.
but after finishing installation of rom it asks for reboot...
after rebooting there is no coming back to nothing in screen
i have serious problem with my Xperia SP
hard brick problem
no vibrate
no light
no chargin sign
flashtool
pc companion
volum up-down with usb cable...an
with power button
nothing working...
please , help
Before My SP has-
DoomKernel V3
CWM - 6.0.3.7
TWRP- 2.0.x.x
ROM-
Existenz v 1.3.7
(camera problem that's why i was tryin to install another rom called Mahdi-v2.0)
Now charging till 3hours.....
but there is absolutly no response from my Phone........
please, somebody help me about my phone......
also i am tryin and serching in xda for something usefull and responsed with my phone.....
thank you very much,
and.
sorry for taking your valuable time
SEUS
Have you tried SEUS for repairing your software? Always works for me
won't help with SUS
Nanostray said:
Have you tried SEUS for repairing your software? Always works for me
Click to expand...
Click to collapse
tried everything include Sony Update Service (SUS)
but.... my problem is
phone get nothin (Vibrate, Light)
if i pressed Volume down with power
or volume down with USB through Flashtool
is there anything could i try??
thanks for helpin, mate!!
Do you unlock your bootloader first?
Sent from My XSP
Solution..
Happened with me when i shifted from normal rom to cm based rom
i just changed kernal by hitting fastboot mode and saved my day...
i have tried the kernal (boot.img) which was inside the 4.4 cm 11
hope u get it!!
Pulsa said:
Do you unlock your bootloader first?
Sent from My XSP
Click to expand...
Click to collapse
thank you for replying...
before bricked my phone i was using a Custom ROM (eXistenZ) with DoomKernel V.03 (cwm/twrp)
but
after bricked
with FlashTools i cant connect my device.
i pressed volume down button and plug in it to my pc USB port.....
but in BLU window's doing nothing.... also in mobile there still no vibration or LED notification at all..
can i remove the battery Cable which is connect to Motherboard?
and then try to reconnect with Flashtools for Relocking my device....
shojeep said:
thank you for replying...
before bricked my phone i was using a Custom ROM (eXistenZ) with DoomKernel V.03 (cwm/twrp)
but
after bricked
with FlashTools i cant connect my device.
i pressed volume down button and plug in it to my pc USB port.....
but in BLU window's doing nothing.... also in mobile there still no vibration or LED notification at all..
can i remove the battery Cable which is connect to Motherboard?
and then try to reconnect with Flashtools for Relocking my device....
Click to expand...
Click to collapse
Isn't Fastboot mode volume +?
sid8840 said:
Happened with me when i shifted from normal rom to cm based rom
i just changed kernal by hitting fastboot mode and saved my day...
i have tried the kernal (boot.img) which was inside the 4.4 cm 11
hope u get it!!
Click to expand...
Click to collapse
Really appriciate for your helping comments....
but.
how do i suppose to do that, where no power no led and no response from FlashTools....?
please give some instruction Step by Step
I already have CM11 (4.4) kitkat with Gapps.
but how to give the kernel for cm11 4.4?
thnks...mate
Hey, first to answer your question, the CM 11 kernel is inside the ROM .zip called "boot.img". So just to understand you, you have had eXistenZ Ultra 1.3.7 (which is in case no ROM but a kind of update) and then you Installed mahdi ROM over it, right? And now your phone is like dropped into a pool. If so the chance to reanimate your phone is unfortunately very low. I heard about a USB-JIG and J-TAG which can help but don't know if that works.
Nevertheless, I hope I could help a little bit and good luck
Sent from my C5303 using xda app-developers app
try while pressing volume up and usb connected press the powrr button for a while
Sent from my C5303 using xda app-developers app
Nanostray said:
Isn't Fastboot mode volume +?
Click to expand...
Click to collapse
yap.... i tried with all the combination..... such as
volume up + power
volume down + power
power + volume down + volume up
back cover opend....and tried
Hard Off (hole) + Power
but no response to my phone...
reallly getting very sad....s ince i bought this phone just few months ago... although in my country zone... i don't have any warrenty issue for any sony device's....
thanks mates, for giving me your valuable times...out there.
keep faith
shojeep said:
yap.... i tried with all the combination..... such as
volume up + power
volume down + power
power + volume down + volume up
back cover opend....and tried
Hard Off (hole) + Power
but no response to my phone...
reallly getting very sad....s ince i bought this phone just few months ago... although in my country zone... i don't have any warrenty issue for any sony device's....
thanks mates, for giving me your valuable times...out there.
Click to expand...
Click to collapse
I'm sorry to hear none of it works, but don't give up yet mate, I'm sure someone here on the forum can help you!
Just to last check...
Press volume up (hold)
Now put ur usb in port of sp
See is there is any blue light
sent from my galaxy grand duos
no dude it should work
dont do anything else
just relax and
open the CMD in your computer
type fast boot flashboot boot.img (kernal file inside cm 11 zip file)
cmd windows will say waiting for the phone.
now connect the usb while pressing volume down and hold the power button for two to three seconds.
ther is nothing to hard brick the device.wht ur problem is u have wrong kernal for the rom to boot.(cm11 rom and it has doom kernal, becouse boot.img file from cm11 has not push to the phone correctly when flashing the cm rom.
make sure ur battery is not empty.
Sent from my C5303 using xda app-developers app
sid8840 said:
Just to last check...
Press volume up (hold)
Now put ur usb in port of sp
See is there is any blue light
sent from my galaxy grand duos
Click to expand...
Click to collapse
after charging with wall charger now device showing the red light.......
now what to do?
Press the offbutton behind the backflip until it vibrate 3 times. Then press vol+ and put the usb cabel into phone. Now there is a blue light! You are in fastboot mode and the phone is ready to flash the bootimage. that's all you have to do! Good luck!
Janith Olagama said:
no dude it should work
dont do anything else
just relax and
open the CMD in your computer
type fast boot flashboot boot.img (kernal file inside cm 11 zip file)
cmd windows will say waiting for the phone.
now connect the usb while pressing volume down and hold the power button for two to three seconds.
ther is nothing to hard brick the device.wht ur problem is u have wrong kernal for the rom to boot.(cm11 rom and it has doom kernal, becouse boot.img file from cm11 has not push to the phone correctly when flashing the cm rom.
make sure ur battery is not empty.
Sent from my C5303 using xda app-developers app
Click to expand...
Click to collapse
thnks for replying
but when i open cmd and type
fastboot flash boot boot.img and press enter
<waiting for device>
then while i press volume down either up it's blinkd the red light.....repetadly...
with flashtools i got nothing also...
please, replay
If red light comes after changing... That means your phone is not bricked
sent from my galaxy grand duos
@shojeep, first, calm down! Most of Sony's devices only brick when you try to do something with TA partition...
If you tried to flash a wrong kernel it will only softbrick.
first, breathe a little, keep calm and in hope is gonna work.
Now, with all the calm of the world,try the following: hold the glory hole poweroff button for 10 seconds (located on the back cover of the phone)
next, you will connect usb cable on phone (DONT CONNECT THE OTHER SIDE ON PC, JUST USB ON PHONE)
then, you have to hold just the vol+ button by 10 seconds, and NOW you connect the usb on PC. Phone should be detected by Windows 7.
now you open flashtool, and see if the phone is being detected by FlashTool.
if yes, hold power button until phone vibrates. Now you connect the phone on the pc holding vol- button to enter on flashmode
flash this: 2.254 kernel , and later flash the full ftf 2.254 to the phone.
hope it works.
Salo-S said:
@shojeep, first, calm down! Most of Sony's devices only brick when you try to do something with TA partition...
If you tried to flash a wrong kernel it will only softbrick.
first, breathe a little, keep calm and in hope is gonna work.
Now, with all the calm of the world,try the following: hold the glory hole poweroff button for 10 seconds (located on the back cover of the phone)
next, you will connect usb cable on phone (DONT CONNECT THE OTHER SIDE ON PC, JUST USB ON PHONE)
then, you have to hold just the vol+ button by 10 seconds, and NOW you connect the usb on PC. Phone should be detected by Windows 7.
now you open flashtool, and see if the phone is being detected by FlashTool.
if yes, hold power button until phone vibrates. Now you connect the phone on the pc holding vol- button to enter on flashmode
flash this: 2.254 kernel , and later flash the full ftf 2.254 to the phone.
hope it works.
Click to expand...
Click to collapse
thank you very much for replying
but...still got the problem.....
"hold the glory hole poweroff button for 10 seconds (located on the back cover of the phone)
next, you will connect usb cable on phone (DONT CONNECT THE OTHER SIDE ON PC, JUST USB ON PHONE)
then, you have to hold just the vol+ button by 10 seconds, and NOW you connect the usb on PC. Phone should be detected by Windows 7."
there is nothing appear on my windows screen, device manager, safe remove connectivity (also i have all the drivers installed adb/google-universal/sony pcc/sony update.
everything was closed....
after that....
there is red light appera on my mobile and stand by 2mins
in this 2 mins....i opend as you say-
"and see if the phone is being detected by FlashTool."
but in my flash tool screen i got-
"25/007/2013 00:07:24 - INFO - <- This level is successfully initialized
25/007/2013 00:07:24 - INFO - Flashtool Version 0.9.13.0 built on 2013-06-04 22:50:00
25/007/2013 00:07:28 - INFO - Device disconnected
"
(2 mins finished)
and everything off again......(still connected with USB to PC)
no light .. no vibrate.
what to do now?
please, reply.
thanks for your helping advices and comments.....

[Q] Did I just brick my Xperia TL?

So I did a stupid thing and didn't do my homework. I flashed CM 10.2 for Xperia T (Mint) on my rooted Xperia TL but didn't unlock the bootloader first. The phone won't boot. Just a black screen. If I hold the power button, it vibrates once, but nothing comes up on the screen. No LED light indicating charging while plugged in.
Have I just destroyed the phone?
lhamilton1807 said:
So I did a stupid thing and didn't do my homework. I flashed CM 10.2 for Xperia T (Mint) on my rooted Xperia TL but didn't unlock the bootloader first. The phone won't boot. Just a black screen. If I hold the power button, it vibrates once, but nothing comes up on the screen. No LED light indicating charging while plugged in.
Have I just destroyed the phone?
Click to expand...
Click to collapse
No. A custom kernel won't work on a locked bootloader, so that is essentially your problem. Just put your phone in flash mode and use flashtool to flash a stock FTF and it should boot up just fine.
Antiga Prime said:
No. A custom kernel won't work on a locked bootloader, so that is essentially your problem. Just put your phone in flash mode and use flashtool to flash a stock FTF and it should boot up just fine.
Click to expand...
Click to collapse
Flashtool says my phone is locked and can't be updated.
lhamilton1807 said:
Flashtool says my phone is locked and can't be updated.
Click to expand...
Click to collapse
Then maybe put your phone in fastboot mode and flash the kernel first... IDK, I did that once and I'm pretty sure that's how I fixed it. With 7zip you can extract the "kernel.sin" file from the FTF, and use Flashtool in Fastboot mode to flash that kernel.
Thanks. I've been trying to put it into fastboot and can't get it to work. From what I have read, I need to hold power+volDown, right? I've held power + volUp to get it to vibrate three times, then connected it with the power & volDown buttons held and nothing - no blue light for fastboot mode. I've currently got it plugged in (using the oem Sony cable) with a rubber band around the power & volDown buttons. Maybe that'll work... I dunno. The led is just staying red, and I can't see it listed as a fastboot devices by typing "fastboot devcies" when cmd is open in the correct folder in the sdk... Any ideas on how to get this done?
Thanks for your help, everyone.
lhamilton1807 said:
Thanks. I've been trying to put it into fastboot and can't get it to work. From what I have read, I need to hold power+volDown, right? I've held power + volUp to get it to vibrate three times, then connected it with the power & volDown buttons held and nothing - no blue light for fastboot mode. I've currently got it plugged in (using the oem Sony cable) with a rubber band around the power & volDown buttons. Maybe that'll work... I dunno. The led is just staying red, and I can't see it listed as a fastboot devices by typing "fastboot devcies" when cmd is open in the correct folder in the sdk... Any ideas on how to get this done?
Thanks for your help, everyone.
Click to expand...
Click to collapse
It's a bit hard to understand what you're trying to do
Fastboot mode = just press vol.up, keep on pressing, connect USB, when you get a blue light release the vol. button
Flash mode = just press vol.down, keep on pressing, connect USB when Flashtool is ready to flash the FTF, when you get a green light release the vol. button
As you can see, you don't have to press the PWR button (only pwr + vol.up to reset, but you already know it).
Usually it's enough to flash a new FTF... I don't know why you get that error: maybe a wrong button combination or maybe you didn't install the drivers needed for flashtool.
If your battery is almost discharged, the fastboot method is good to flash only the kernel in order to recharge the battery and then flash an entire FTF.
I guess your device is ok.
Anyway, have you already seen this guide?
I'll give it a shot. I can't seem to get it into flash mode or fastboot mode, though. When I hold down the Volume up or volume down button and try to plug it in, the light stays red and the computer makes a "connect" sound (Windows 7 - rising tones), then multiple "disconnect" sounds (falling tones). The light stays red and the phone is not connected.
I'm downloading a stock firmware and flashtool and will report back when I've tried it some more.
lhamilton1807 said:
I'll give it a shot. I can't seem to get it into flash mode or fastboot mode, though. When I hold down the Volume up or volume down button and try to plug it in, the light stays red and the computer makes a "connect" sound (Windows 7 - rising tones), then multiple "disconnect" sounds (falling tones). The light stays red and the phone is not connected.
I'm downloading a stock firmware and flashtool and will report back when I've tried it some more.
Click to expand...
Click to collapse
I suggest removing the battery, if you have the chance.
Keep the battery removed and press and hold power and volume up buttons simultaneously. Then plug the phone to your computer and you'll enter fastboot mode.
I revived my XV with the same red led that way.
Had to remove the battery before it would work, tho.
Good luck bro!
Sorry it took so long to get to this. I've just been using my backup in the meantime.
I took the battery out and plugged it in like you suggested. Worked like a charm! I've got it flashed and running now. Thanks!

[Q] Moto X doesn't power on, just green led on when charging

Hi, first i'd like to say sorry for my bad english, i'm from Argentina and I talk spanish. Well, I just flashed 4.4.2 to Moto X and everything went nice, with the Bootloader unlocked, the 4.4.4 OTA arrived, i click "upgrade" and the phone download the ROM, when i click on "install" the phone just die. Now it doesn't turns on, just a green led comes over when I plug it to the charger. I need help please....
Did you have low battery when you upgraded
aliyangohar4 said:
Did you have low battery when you upgraded
Click to expand...
Click to collapse
I was ugrading with 63% of battery
Try holding the power down and volume down buttons and see if that does anything
aliyangohar4 said:
Try holding the power down and volume down buttons and see if that does anything
Click to expand...
Click to collapse
No, it doesn't. Nothing happens.
connect device to pc and press windows+R and type devmgmt.msc and look for "QHSUSB_DLOAD"
miju12 said:
connect device to pc and press windows+R and type devmgmt.msc and look for "QHSUSB_DLOAD"
Click to expand...
Click to collapse
Nothing appears.
DaftAns said:
Nothing appears.
Click to expand...
Click to collapse
Do you have Motorola Device Manager on your PC? If not, install it.
With your phone plugged into the wall, press and hold the power button to see if you can get any response. If not, press and hold the volume down for about 3 seconds, then without releasing the volume down, press and hold the power button. Keep both buttons pressed together for about 3 seconds and release. If nothing happens, press volume up and see if you can get into bootloader mode.
Had you downgraded to 4.4.2 from 4.4.4?
If you can't get into bootloader mode, your only hope other than paying for a repair is this thread here:
http://forum.xda-developers.com/moto-x/general/how-to-resurrecting-bricked-moto-x-t2629057
DaftAns said:
Nothing appears.
Click to expand...
Click to collapse
when you connect it to pc do you heard the connecting disconnecting sound? try pressing power button while connected to pc. you can also follow the thread given by @JulesJam
JulesJam said:
Do you have Motorola Device Manager on your PC? If not, install it.
With your phone plugged into the wall, press and hold the power button to see if you can get any response. If not, press and hold the volume down for about 3 seconds, then without releasing the volume down, press and hold the power button. Keep both buttons pressed together for about 3 seconds and release. If nothing happens, press volume up and see if you can get into bootloader mode.
Had you downgraded to 4.4.2 from 4.4.4?
If you can't get into bootloader mode, your only hope other than paying for a repair is this thread here:
http://forum.xda-developers.com/moto-x/general/how-to-resurrecting-bricked-moto-x-t2629057
Click to expand...
Click to collapse
I tried everything you said, and nothing works :c, checking the link that you gave me, thanks!
miju12 said:
when you connect it to pc do you heard the connecting disconnecting sound? try pressing power button while connected to pc. you can also follow the thread given by @JulesJam
Click to expand...
Click to collapse
Yes, when I connect it to my laptot the "connected-device" sounds, and after seven seconds, comes the "disconnected-device" sound.
JulesJam said:
Do you have Motorola Device Manager on your PC? If not, install it.
With your phone plugged into the wall, press and hold the power button to see if you can get any response. If not, press and hold the volume down for about 3 seconds, then without releasing the volume down, press and hold the power button. Keep both buttons pressed together for about 3 seconds and release. If nothing happens, press volume up and see if you can get into bootloader mode.
Had you downgraded to 4.4.2 from 4.4.4?
If you can't get into bootloader mode, your only hope other than paying for a repair is this thread here:
http://forum.xda-developers.com/moto-x/general/how-to-resurrecting-bricked-moto-x-t2629057
Click to expand...
Click to collapse
Hi, some of the download links in the URL you gave me are dead.
DaftAns said:
Hi, some of the download links in the URL you gave me are dead.
Click to expand...
Click to collapse
which ones?
DaftAns said:
Yes, when I connect it to my laptot the "connected-device" sounds, and after seven seconds, comes the "disconnected-device" sound.
Click to expand...
Click to collapse
http://forum.xda-developers.com/moto-x/orig-development/bootloader-tool-motoflasher-t2959081. do check any changes in the device manager when your phone gets connected. Any exclamation mark in the device manager while you connect it under usb ports? try changing usb cable and pc and ports.
If it "died" right after you hit install and still connects to PC I doubt it's dead. Try pressing Volume Down and then Power Key, hold both for more than 2 Minutes (yes, more than 120 seconds!) then release both and see if it reboots (which it should if your problem is what I suspect) or you can turn it on again or enter bootloader.
Was the 4.4.2 you tried to upgrade to 4.4.4 modified in any way? SuperSU installed or any changes to system files?
miju12 said:
http://forum.xda-developers.com/moto-x/orig-development/bootloader-tool-motoflasher-t2959081. do check any changes in the device manager when your phone gets connected. Any exclamation mark in the device manager while you connect it under usb ports? try changing usb cable and pc and ports.
Click to expand...
Click to collapse
I can't see any changes in the device manager because 5 seconds after i plug in the phone, it "disconnects" so i have no time to check.
Hardmood said:
If it "died" right after you hit install and still connects to PC I doubt it's dead. Try pressing Volume Down and then Power Key, hold both for more than 2 Minutes (yes, more than 120 seconds!) then release both and see if it reboots (which it should if your problem is what I suspect) or you can turn it on again or enter bootloader.
Was the 4.4.2 you tried to upgrade to 4.4.4 modified in any way? SuperSU installed or any changes to system files?
Click to expand...
Click to collapse
No. It was a stock rom, with Usa retail i think
DaftAns said:
I can't see any changes in the device manager because 5 seconds after i plug in the phone, it "disconnects" so i have no time to check.
Click to expand...
Click to collapse
Open device manager than connect the device. Which os you are using?
miju12 said:
Open device manager than connect the device. Which os you are using?
Click to expand...
Click to collapse
Windows 8.1 Pro. But when I connect my phone de device manager seems to refresh all the device, then my phone disconnects.
DaftAns said:
Windows 8.1 Pro. But when I connect my phone de device manager seems to refresh all the device, then my phone disconnects.
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i also get problems with windows 8.1 pro try windows 7 or xp

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