Won't start up anymore - Xperia Z3 Q&A, Help & Troubleshooting

I haven't modded my phone in any way for about half a year, but today it suddenly turned off and won't turn back on again.
Nothing happens when I hold volume up + power button.
When I connect it to my computer through usb, it would connect and disconnect constantly, and the screen will flash the sony logo screen on and off, without successfully booting, while the LED light flashes red.
When I hold volume up while inserting the usb cable, the LED light will turn blue, successfully entering flashboot mode verified through flashtool, but nothing will show up on the screen.
Is there any hope for this phone?
edit: I can access recovery mode (power + volume down), but unless I'm plugged in through usb, the screen will turn black and shut off itself. While plugged in, I can use recovery fine, but if I have to reflash, I'm looking for a way to backup my files first.
edit2: I held volume down + power again and entered something called Team Win Recovery Project (did I access the other recovery screen some other way?) I see I can access a file manager, so I can probably move my files over to a sd card. This mode doesn't turn my screen black while unplugged.

sengakae said:
I haven't modded my phone in any way for about half a year, but today it suddenly turned off and won't turn back on again.
Nothing happens when I hold volume up + power button.
When I connect it to my computer through usb, it would connect and disconnect constantly, and the screen will flash the sony logo screen on and off, without successfully booting, while the LED light flashes red.
When I hold volume up while inserting the usb cable, the LED light will turn blue, successfully entering flashboot mode verified through flashtool, but nothing will show up on the screen.
Is there any hope for this phone?
edit: I can access recovery mode (power + volume down), but unless I'm plugged in through usb, the screen will turn black and shut off itself. While plugged in, I can use recovery fine, but if I have to reflash, I'm looking for a way to backup my files first.
edit2: I held volume down + power again and entered something called Team Win Recovery Project (did I access the other recovery screen some other way?) I see I can access a file manager, so I can probably move my files over to a sd card. This mode doesn't turn my screen black while unplugged.
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then drains flashtool and put the stock firmware usually this problem since it does not there is no sistem inside.

I wiped and flashed a new firmware but the device will still randomly turn off, until now when it won't turn back on again.

Related

Infuse keeps flashing the Samsung Logo

Ok, my phone was working just fine and then it randomly shut down on me and then booted up to the Samsung logo screen. The phone would flash the logo for a few seconds, go black, and then does it again. I've pulled the battery out and once I put the battery back in, the phone automatically turns back on without me having to hold down the power button or anything. I can't seem to be able to enter download mode or be able to reset it either. When I plug it into my computer it does display the battery icon charging which stops the blinking but thats it. Can someone help?
rsxus said:
Ok, my phone was working just fine and then it randomly shut down on me and then booted up to the Samsung logo screen. The phone would flash the logo for a few seconds, go black, and then does it again. I've pulled the battery out and once I put the battery back in, the phone automatically turns back on without me having to hold down the power button or anything. I can't seem to be able to enter download mode or be able to reset it either. When I plug it into my computer it does display the battery icon charging which stops the blinking but thats it. Can someone help?
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Check this out
rsxus said:
Ok, my phone was working just fine and then it randomly shut down on me and then booted up to the Samsung logo screen. The phone would flash the logo for a few seconds, go black, and then does it again. I've pulled the battery out and once I put the battery back in, the phone automatically turns back on without me having to hold down the power button or anything. I can't seem to be able to enter download mode or be able to reset it either. When I plug it into my computer it does display the battery icon charging which stops the blinking but thats it. Can someone help?
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Could be your power button...manual issue...you know like it's stuck down. Go on YouTube they have a dismantling video on cleaning inside of phone buttons etc. Did it myself not hard at all

S7 won't boot, blue LED always on.

Just some minutes ago my S7 froze because of Focus Gallery App. I don't exactly know what it did but the phone did not respond any more.
So pressing the power button did not bring back the phone either. After searching for a bit I found a way to simulate a bettery disconnect by pressing Volume Down + Power Button.
The Phone came back up and displayed the initial boot logo. Also the blue LED is on. But nothing happens from here on. I do not come to the "Samsung" boot animation and the phone simply
does nothing. Retriying Volume Down + Power Button doesn't seem to help too. I tryed all button combinations but nothing brings the phone back.
I also cannot enter the recovery menu. So no chance to reset to default settings.
I am running a stock Android on the phone. Nothing was done by me. No custom ROM, no root, just plain Samsung Android.
Is there sill something I can do?
Edit: I just got into whats seems to be ODIN Mode??? Can I do something from here?
Oddly this happened to me last night although I may have inadvertently done it. But the only way I was able to get my phone functioning again was reflashing the OS to the phone.
How did you manage to get the phone into Odin mode? I'm having the same issue with the phone being totally unresponsive but the blue LED on.
if you can reboot your phone with the VOL Down/Power, when the screen goes black, quickly press and hold VOL Up, Home and Power. it should enter recovery. or hold Vol down, Home and Power to enter the download screen.
I have the S7 Edge (rooted, custom ROM) and it's running fine. My girlfriend's regular S7 is having the same issue though.
When she plugged it in to charge last night, she checked it a few minutes later at which point the phone had (started to) reboot. The blue notification LED was on and the screen had frozen at the 'SA' from the 'SAMSUNG' startup logo. Forced a reboot with down+power, resulting in just the blue LED (no logo this time). Phone was unresponsive (couldn't force a reboot again) so left the battery to drain overnight. The phone is completely dead today even after charging - no LED, no boot, no anything.
I'm not sure if she had the phone scheduled to perform an update overnight and it froze halfway through, but that would be my first guess. So far, no fix.

R7F cant even boot (enough battery, was trying to boot into recovery mode)

Hi I need help urgently. I wanted to boot my phone into recovery mode so i after i switched the phone off, i pressed the power button + volume up. My phone was connected to pc all along. problem is, i removed both my fingers off the power and volume up the moment i saw the "OPPO" boot logo, and realizing that the screen is blank, i removed the power cable connecting my phone to the pc. Now, my r7f refuses to boot.
Weird thing is when i connect my phone to the pc, sometimes the pc recognizes an unknown device thats "malfunctioned". This is called 'bricked'? How do i solve this?
I cant even switch on my phone or remove the battery due to its built-in battery. had 70+% battery at the point of occurence.
My R7f goes into the fastboot mode when i hold the power and volume+ . I usually enter to the recovery mode by holding the power and volume -
You have to hold the buttons for more than 2-3 seconds even the boot logo is shown keep holding them.

D2206 bootloop, side buttons doesn't work

D2206. Got into a bootloop (the phone only shows the Sony and Xperia logo but ain't starting the system and just restarting forever doing it again and again). Can't get into Fastboot mode because volume buttons and power button isn't reacting at all. The only solution to force it to show some traces of life is plug him to PC or to a charging device but nothing happens except the charging lightning animation appears. And after connecting to PC, it seems like Flashtool recognize him, but nothing can be done because of the periodic 5-7 second interval disconnects.
Any solutions or tips?
You need to power off before connecting. Here's how.
I don't know if you figured this out or still need the help now, but I'm answering because it's the one thing here that I do know the answer to.
From your description, it sounds like you are trying to connect your phone to PC while the phone is still in boot loop. This will not work. You need to power it off first. Since your power and volume buttons won't respond during boot loop, you will need to use the hardware override that is provided.
Under the back panel of your phone, between the SIM2 and microSD slots, you will see a small punch-hole about 2 mm in diameter and labelled "OFF." Use a pen or precision screwdriver to gently press the off switch located inside this punch-hole for about 1 sec. Phone should switch off.
Wait about 15 sec before connecting to PC in Flash (Vol Up pressed down) or Fastboot (Vol Down pressed down) mode until the LED flashes the respective colour and then you can follow whatever instructions you are following.

Honor 8 boot loop - no fastboot no erecovery no dload - is it dead?

I think my phone has gone forever, but I'd like to check here if someone can save it.
I've been using this phone for 3 years, no changes besides OTA updates. Suddenly, screen froze and I held POWER button until it turned off. Then it rebooted and showed honor powered by android in blue background. It shows only that screen for a minute or so and then reboot again. If I hold POWER button, it'll reboot again (it won't turn off). The only combination of keys that produces different result is combo of VOL UP + VOL DOWN + POWER, which will turn screen black, then vibrate and then turn off (if I release keys before it vibrates, it'll start over).
I tried to put dload\UPDATE.APP in sdcard and nothing happened. I also tried all combinations described in a post I found in modaco forum (www[dot]modaco[dot]com/forums/topic/377629-honor-8-button-combinations-clarified/) and I don't get any other result besides what I described before.
Is there any way to fix it??
Did you try to press power and vol- ? When it boot, release power and keep your finger on vol- while connecting to a computer using USB. Normally, you should access to fastboot
EDIT: Oh sorry, in hurry I have not pay attention to the website you quote :'(

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