Database Develop

[Q] Bootloop help (cannot access fastboot/adb)

Note: This is a re-post from the Verizon HTC forums (http://forum.xda-developers.com/showthread.php?t=2533042)
I just rooted and S-off my HTC via rumrunner.
No flash roms install or custom recovery installed.
I wanted to see if I still had CWM from my last root (I returned to stock via http://forum.xda-developers.com/show...highlight=s-on.
So I went into the bootloader or fastboot (I don't remember) and hit recovery. This did not send me to a CWM, but it appeared to be the stock version of recovery. The process took too long (I know impatient) so I turned it off via power button + volume down.
Now I come to you in need, my phone is constantly turning off/on only displaying the green htc text, no red text, then pausing for 8 seconds, then off again to black screen. The whole process lasts 12 seconds, and this had been going on for about 10-15 min atm.
Plugging it in, my computer does not have the time to recognize it with adb, or fastboot.
I cannot use the power button + volume down to go into bootloader, and pressing the power button does nothing.
Please help me.
So here's the update.
Screen is now black, meaning the boot up/down process has stopped.
I have tried these:
A. Hold down the volume down + power button for 20+ seconds.
B. Hold down the volume up + volume down + power button for 20+ seconds and let up on the volume up button when screen goes black.
These two methods results in a single boot up to green HTC text then black screen.
I suspect the device has lost most of its power. Tried it for a third time, the device is now unresponsive and remains at black screen.
Now I plugged the usb cable connected to the power adapter.
The device enters the aforementioned continuous boot loop.
I tried method A and B, and there are no results, the boot loop continues. Now the device returns to the low or no powered state.
Now the device is connected to the computer. The same happens as if it were connected to the power adapter.
Method A and B still do not work.
Results: holding down buttons longer do nothing for me. The device seems to have lost power, but when charged, immediately the device enters the boot loop state.
Note: when doing method A and B the trials were done when screen is on and when screen is off, still no results.
Now the screen is off and not connected to anything. The problem still persists.

geeibara said:
Note: This is a re-post from the Verizon HTC forums (http://forum.xda-developers.com/showthread.php?t=2533042)
I just rooted and S-off my HTC via rumrunner.
No flash roms install or custom recovery installed.
I wanted to see if I still had CWM from my last root (I returned to stock via http://forum.xda-developers.com/show...highlight=s-on.
So I went into the bootloader or fastboot (I don't remember) and hit recovery. This did not send me to a CWM, but it appeared to be the stock version of recovery. The process took too long (I know impatient) so I turned it off via power button + volume down.
Now I come to you in need, my phone is constantly turning off/on only displaying the green htc text, no red text, then pausing for 8 seconds, then off again to black screen. The whole process lasts 12 seconds, and this had been going on for about 10-15 min atm.
Plugging it in, my computer does not have the time to recognize it with adb, or fastboot.
I cannot use the power button + volume down to go into bootloader, and pressing the power button does nothing.
Please help me.
So here's the update.
Screen is now black, meaning the boot up/down process has stopped.
I have tried these:
A. Hold down the volume down + power button for 20+ seconds.
B. Hold down the volume up + volume down + power button for 20+ seconds and let up on the volume up button when screen goes black.
These two methods results in a single boot up to green HTC text then black screen.
I suspect the device has lost most of its power. Tried it for a third time, the device is now unresponsive and remains at black screen.
Now I plugged the usb cable connected to the power adapter.
The device enters the aforementioned continuous boot loop.
I tried method A and B, and there are no results, the boot loop continues. Now the device returns to the low or no powered state.
Now the device is connected to the computer. The same happens as if it were connected to the power adapter.
Method A and B still do not work.
Results: holding down buttons longer do nothing for me. The device seems to have lost power, but when charged, immediately the device enters the boot loop state.
Note: when doing method A and B the trials were done when screen is on and when screen is off, still no results.
Now the screen is off and not connected to anything. The problem still persists.
Click to expand...
Click to collapse
If I had to guess I would say your volume down is broken, else it would enter hboot
plug in the power and let it charge all day. then plug it to your pc and try to adb reboot bootloader or adb reboot recovery the instant you here the pc usb ingage.
once you get to the bootloader try and fastboot erase cache followed by fastboot reboot
after your phone boots you should be able to go back to bootloader and reinstall custom recovery

clsA said:
If I had to guess I would say your volume down is broken, else it would enter hboot
plug in the power and let it charge all day. then plug it to your pc and try to adb reboot bootloader or adb reboot recovery the instant you here the pc usb ingage.
once you get to the bootloader try and fastboot erase cache followed by fastboot reboot
after your phone boots you should be able to go back to bootloader and reinstall custom recovery
Click to expand...
Click to collapse
I have a few questions/concerns to this.
1. When I charge it, I can't stop the phone from the continuous boot. I'm afraid that doing this all day might hurt the phone more.
2. Currently I have been charging it via computer (still boot loop), and the computer does not recognize it at all. I think there is really not enough time because the loop duration is only a few seconds.
3. Since the phone is connected to the computer, the commands adb reboot bootloader and adb reboot recovery does not work. Error: device not found.

geeibara said:
I have a few questions/concerns to this.
1. When I charge it, I can't stop the phone from the continuous boot. I'm afraid that doing this all day might hurt the phone more.
2. Currently I have been charging it via computer (still boot loop), and the computer does not recognize it at all. I think there is really not enough time because the loop duration is only a few seconds.
3. Since the phone is connected to the computer, the commands adb reboot bootloader and adb reboot recovery does not work. Error: device not found.
Click to expand...
Click to collapse
well have you held the phone under a bright light and held just the power down for 15 seconds and let go when the phone go's off ?

clsA said:
well have you held the phone under a bright light and held just the power down for 15 seconds and let go when the phone go's off ?
Click to expand...
Click to collapse
So what is this method supposed to accomplish?
I did this and the phone stopped the continous boot. However when I tried to go to hboot it went back into the loop. I did this twice, and I'm able to stop the loop with the bright light method, but I don't know what to do from here.
Note: when plugging phone into computer, the loop starts again.

geeibara said:
So what is this method supposed to accomplish?
I did this and the phone stopped the continous boot. However when I tried to go to hboot it went back into the loop. I did this twice, and I'm able to stop the loop with the bright light method, but I don't know what to do from here.
Note: when plugging phone into computer, the loop starts again.
Click to expand...
Click to collapse
will the phone charge when in the off state / not from PC ?

clsA said:
will the phone charge when in the off state / not from PC ?
Click to expand...
Click to collapse
Plugging the phone into the adapter, the phone charges, but the boot loop occurs again.

geeibara said:
Plugging the phone into the adapter, the phone charges, but the boot loop occurs again.
Click to expand...
Click to collapse
the phone should not bootup with the power cord plugged in from an off state (are you turning the phone back on ?)
turn off phone by holding power 15 seconds under a bright light
plug phone into outlet (not PC) let charge till green light comes on (not Red)
hold volume down and power for 10 seconds ( you should be in hboot)
plug phone to PC choose fastboot hit power
your now in fastboot usb
from here you reflash recovery
fastboot erase cache and reboot recovery
if your still in bootloop I'm at a loss, and seems your hboot is corrupted I think you have to return your phone to Verizon or HTC.

clsA said:
the phone should not bootup with the power cord plugged in from an off state (are you turning the phone back on ?)
turn off phone by holding power 15 seconds under a bright light
plug phone into outlet (not PC) let charge till green light comes on (not Red)
hold volume down and power for 10 seconds ( you should be in hboot)
plug phone to PC choose fastboot hit power
your now in fastboot usb
from here you reflash recovery
fastboot erase cache and reboot recovery
if your still in bootloop I'm at a loss, and seems your hboot is corrupted I think you have to return your phone to Verizon or HTC.
Click to expand...
Click to collapse
Well I don't know if it is truly off, I'm just assuming it is.
But yes as soon as I plug the phone into the power adapter the red led flashes on, and the htc logo appears, then the loop continues.
I'll probably take it into Verizon tomorrow and update on what happens.

Update: Welp, I gave up. I'm going to get my replacement soon and I'll be turning it into Verizon. Really it's not that bad of a loss since I just wiped the phone, only thing is I lost my screen protector and carbon skin

geeibara said:
Update: Welp, I gave up. I'm going to get my replacement soon and I'll be turning it into Verizon. Really it's not that bad of a loss since I just wiped the phone, only thing is I lost my screen protector and carbon skin
Click to expand...
Click to collapse
sorry to hear that mate!!!

[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!

Z1 bricked after trying to reboot into recovery

Hello,
I wanted to flash TWRP into my Z1 C6903 so I downloaded latest TWRP img with official TWRP app and tried flashing it with RASH - Flash tool for Android. The tool stated that the flash was successful so I proceeded to reboot into recovery with the same app. The phone immediately shut down and wouldn't boot back up to neither Android or recovery. It would vibrate once when holding the power button, holding power + volume up would do nothing and phone would not be recognized by PC and even plunging it into wall would do nothing. I tried disconnecting the batter, plunging it to wall and connecting the battery back on which only made LED blink red and device still be not recognized by PC. Can someone help me how to unbrick my phone?
Thank you.

UnsuccessfulScreenRepair said:
Hello,
I wanted to flash TWRP into my Z1 C6903 so I downloaded latest TWRP img with official TWRP app and tried flashing it with RASH - Flash tool for Android. The tool stated that the flash was successful so I proceeded to reboot into recovery with the same app. The phone immediately shut down and wouldn't boot back up to neither Android or recovery. It would vibrate once when holding the power button, holding power + volume up would do nothing and phone would not be recognized by PC and even plunging it into wall would do nothing. I tried disconnecting the batter, plunging it to wall and connecting the battery back on which only made LED blink red and device still be not recognized by PC. Can someone help me how to unbrick my phone?
Thank you.
Click to expand...
Click to collapse
Magic keys for booting to recovery are either:
Hold Vol down and power
release Power when device vibrates, keep holding Vol down
hold Vol down until in recovery
Or:
Power on
if LED blinks press Vol up
If that shouldn't work there's fastboot (only with bootloader unlocked before) or sony flashtool. Just flash latest sony firmware and you should be fine.
There are enough threads concerning this

115ek said:
Magic keys for booting to recovery are either:
Hold Vol down and power
release Power when device vibrates, keep holding Vol down
hold Vol down until in recovery
Or:
Power on
if LED blinks press Vol up
If that shouldn't work there's fastboot (only with bootloader unlocked before) or sony flashtool. Just flash latest sony firmware and you should be fine.
There are enough threads concerning this
Click to expand...
Click to collapse
That doesn't work, the phone doesn't respond to any inputs from buttons.

UnsuccessfulScreenRepair said:
That doesn't work, the phone doesn't respond to any inputs from buttons.
Click to expand...
Click to collapse
Then Flashtool is your friend. You have to reflash the Sony Software.
https://developer.sony.com/develop/open-devices/get-started/flash-tool/

Anyone knows how to repair hard bricked phone?

I was flashing my phone and half way through my computer lost power. Now the phone does not start. I can't get it into fastboot, or flash mode.
Pressing 'vol up' + 'power' doesn't work either. Anyone knows how to repair a hard brick?

boringpie said:
I was flashing my phone and half way through my computer lost power. Now the phone does not start. I can't get it into fastboot, or flash mode.
Pressing 'vol up' + 'power' doesn't work either. Anyone knows how to repair a hard brick?
Click to expand...
Click to collapse
Does vol down + power work?
Does the charging animation show up?
Does the led emits a light?
At least you could say the support that your device turned of while applying a firmware update and that they need to give you a new device :silly:

MartinX3 said:
Does vol down + power work?
Does the charging animation show up?
Does the led emits a light?
At least you could say the support that your device turned of while applying a firmware update and that they need to give you a new device :silly:
Click to expand...
Click to collapse
No charging animation.
if I press vol up + power longer enough the red light will turn on, but it still can't be detected by the computer.....
btw, yesterday I updated my phone to firmware 52.0.A.8.25_R5B and install the new twrp but it was stuck in a boot loop, so I repeat this process four times and still no luck, until the fifth time my PC died on me bricking my phone........

boringpie said:
No charging animation.
if I press vol up + power longer enough the red light will turn on, but it still can't be detected by the computer.....
btw, yesterday I updated my phone to firmware 52.0.A.8.25_R5B and install the new twrp but it was stuck in a boot loop, so I repeat this process four times and still no luck, until the fifth time my PC died on me bricking my phone........
Click to expand...
Click to collapse
Did you "fastboot boot twrp" or "fastboot flash boot twrp"?
Weird, I hope the IT guys can help you.

same problem? you have solution?

Does holding volume down + power while plugging the phone into a computer show a green light?

how to repair hard bricked phone?
SOMC Flash Device show only
my Phone Model SOV37 Japan Au
i am try to Global Rom Flash Done
H8216_Customized IL_52.0.A.11.3-R2B
Sony Xperia XZ2 (SOV37 Convert To H8216 )
Bootloader Unlock Done TWRP Root Done
Phone Normally Open Global
2nd time try to Flash this file SOV37_KDDI JP_52.0.C.5.295-R13B
Flash Done but my phone hard bricked show only SOMC Flash Device.
No charging & if I press vol up + power longer enough the red light will turn on, but it still show only SOMC Flash Device. computer.
i need help Sir

Cant't boot to fastboot mode

I'm trying to install a custom ROM onto my Xperia XZ1 Compact but I got stuck in the beginning. The first step would be to unlock the bootloader. I followed multiple tutorials but none of them worked for me, because I can't get my phone to reboot into fastboot mode. I tried two ways basically:
1. Turn off device, hold Volume down button for 2 secs, plug USB while holding the button. Nope, nothing happens, the only thing I get is the green led is on, I guess indicating that the phone is being charged.
2. Turn off device, plug USB and launch the command adb reboot fastboot (My computer is running Linux but I think it doesn't matter). The phone turns off but does not restart. If I just do adb reboot it reboots in normal mode. I also tried adb reboot bootloader but it just turns off the phone.
Any ideas what I'm doing wrong? Thanks

neils_f said:
I'm trying to install a custom ROM onto my Xperia XZ1 Compact but I got stuck in the beginning. The first step would be to unlock the bootloader. I followed multiple tutorials but none of them worked for me, because I can't get my phone to reboot into fastboot mode. I tried two ways basically:
1. Turn off device, hold Volume down button for 2 secs, plug USB while holding the button. Nope, nothing happens, the only thing I get is the green led is on, I guess indicating that the phone is being charged.
2. Turn off device, plug USB and launch the command adb reboot fastboot (My computer is running Linux but I think it doesn't matter). The phone turns off but does not restart. If I just do adb reboot it reboots in normal mode. I also tried adb reboot bootloader but it just turns off the phone.
Any ideas what I'm doing wrong? Thanks
Click to expand...
Click to collapse
It seems that this issue is now solved. Black screen with green led on means that your phone is in fastboot mode. Do not expect any feedback on the screen.

neils_f said:
It seems that this issue is now solved. Black screen with green led on means that your phone is in fastboot mode. Do not expect any feedback on the screen.
Click to expand...
Click to collapse
Green = Flash mode, Blue = Fastboot mode.

SXUsr said:
Green = Flash mode, Blue = Fastboot mode.
Click to expand...
Click to collapse
I see, thanks. Anyway something is going really bad here, I wish I had never started this. I have managed to unlock the bootloader but the phone does not work now. It hangs at the XPERIA logo and does not respond to power button. It only responds to power + vol up + vol down which restarts the system and hangs again at logo

neils_f said:
I see, thanks. Anyway something is going really bad here, I wish I had never started this. I have managed to unlock the bootloader but the phone does not work now. It hangs at the XPERIA logo and does not respond to power button. It only responds to power + vol up + vol down which restarts the system and hangs again at logo
Click to expand...
Click to collapse
Restore your phone with THIS. Which guide did you follow to unlock your boot loader? https://developer.sony.com/develop/...d/unlock-bootloader/how-to-unlock-bootloader/

SXUsr said:
Restore your phone with THIS. Which guide did you follow to unlock your boot loader? https://developer.sony.com/develop/...d/unlock-bootloader/how-to-unlock-bootloader/
Click to expand...
Click to collapse
I'm restoring the phone right now, thanks for the tip. Fingers crossed. Yes, I followed the guide you linked above.