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[Q] HOX stuck in bootloop with no access to bootloader

Ok.. I'm about to lose hope, please any creative ideas will be much appreciated..
I think i did a big mistake trying to update to the latest nightly release of CM 10.2 using the auto-update feature of cm 10.1...
The end result is a bootloop, gets up to the CM rotating animation for a few seconds and reboots.
on top of that:
unable to get into bootloader using pwr+vol up nor vol down
unable to access device using adb nor fastboot - shows no device connected
the PC does not recognize the device though there are drivers installed, the charging LED lights up but no PC activity
all of the solutions i've seen assume either the recover/bootloader is available or the phone is accessed via fastboot/adb.
in this case neither are correct....
for some time i wanted to upgrade to htc one but not yet....
please help

Press and hold power until the phone shuts off.
Then let go of power and press and hold volume down until bootloader comes up.
Sent from my One X using xda app-developers app

exad said:
Press and hold power until the phone shuts off.
Then let go of power and press and hold volume down until bootloader comes up.
Sent from my One X using xda app-developers app
Click to expand...
Click to collapse
tried it again several time, but as I said it doesn't work.
I get a black screen (not the CM animation) and than reboot all over again.

You could try letting it drain completely. Then charge a bit and try again.
Is your phone plugged in while your trying? My phone will not enter bootloader while its plugged in.
Sent from my One X using xda app-developers app

spitfireatz said:
tried it again several time, but as I said it doesn't work.
I get a black screen (not the CM animation) and than reboot all over again.
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Click to collapse
You are mostly likely not performing the button combo correctly. If there were no bootloader (hboot), the screen would not be coming on at all. Not getting into bootloader is almost always a case of not doing the button combo correctly. The one possible exception, is if your volume rocker has failed (and simply not registering the vol down being pressed).
Make sure you hold vol down, and do not let go until the while bootloader screen comes up.
Recovery is a different story, as you can indeed not have recovery installed, and the phone will still function. But hboot and recovery are 2 different things.

redpoint73 said:
You are mostly likely not performing the button combo correctly. If there were no bootloader (hboot), the screen would not be coming on at all. Not getting into bootloader is almost always a case of not doing the button combo correctly. The one possible exception, is if your volume rocker has failed (and simply not registering the vol down being pressed).
Make sure you hold vol down, and do not let go until the while bootloader screen comes up.
Recovery is a different story, as you can indeed not have recovery installed, and the phone will still function. But hboot and recovery are 2 different things.
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Click to collapse
I wish it was the case,
when i try to go into hboot the device instead of going into another boot until animation cycle, goes into black screen boot cycle. which means most likely that the action (PWR+Vol) does have an effect otherwise it would have continued to go into same boot cycle through the CM animation..
besides there is a recovery installed, or at least was...
is there anyway to re-install the hboot part without the hboot/fastboot availability?

spitfireatz said:
is there anyway to re-install the hboot part without the hboot/fastboot availability?
Click to expand...
Click to collapse
If you are s-off, try running the RUU.

Nexus 5 stuck in boot loop and cant access boot loader

i flashed the latest nightly of AOKP today and then restored all my apps and data with titanium backup. When the restore was complete it prompted me to reboot my device so i did. ever since then i have been unable to reboot my phone as it is stuck on the start up screen. i then tried to restore from a backup of my other rom and then found out that i couldn't boot into the boot loader as when i held down the power and + volume button the startup would begin and then the phone would turn off. any ideas on how to fix this.

What it's happening is your stuck in a boot loop.
When you are holding power and volume down the phone is only interested in the power button part. Which is why it's powering off.
Just keep the buttons held both power and volume down. When it powers off keep them held and you should come into the bootloader
Sent from my Nexus 4 using xda app-developers app

I have tried that but it just goes tocthe Google screen then turns off again

rdodds97 said:
when i held down the power and + volume button the startup would begin and then the phone would turn off. any ideas on how to fix this.
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Click to collapse
Not sure if the quote is a typo or not, but it should be power and - volume. You can also try power and both volume buttons, which will take you to the secondary boot loader.

adrman said:
Not sure if the quote is a typo or not, but it should be power and - volume. You can also try power and both volume buttons, which will take you to the secondary boot loader.
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Click to collapse
If the phone is turned on and you press both volumes and power keys then you get qhusb mode
Sent from my Nexus 5 using xda app-developers app

bitdomo said:
If the phone is turned on and you press both volumes and power keys then you get qhusb mode
Sent from my Nexus 5 using xda app-developers app
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Click to collapse
I assumed the op was able to completely power down by just continuing to hold the power button and possibly had the wrong button combo.

What do you mean by start up screen?
You see the screen tells you "Google" and it stays there?
Sent from my Nexus 5 using xda app-developers app

bitdomo said:
What do you mean by start up screen?
You see the screen tells you "Google" and it stays there?
Sent from my Nexus 5 using xda app-developers app
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Click to collapse
Yes but then it goes to the 4 coloured circles which move around and it stays there

rdodds97 said:
Yes but then it goes to the 4 coloured circles which move around and it stays there
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Hold your power button down for 30 to 60 seconds. You should be powered down. Then try to get into the boot loader. Vol down + power. Dues it get into bootloader?

adrman said:
Not sure if the quote is a typo or not, but it should be power and - volume. You can also try power and both volume buttons, which will take you to the secondary boot loader.
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Click to collapse
I can now access recovery mode which is all I need. I have always thoight it was power and volume + but I must have been confused with my tablet z. Thank you all anyway for helping me

rdodds97 said:
I can now access recovery mode which is all I need. I have always thoight it was power and volume + but I must have been confused with my tablet z. Thank you all anyway for helping me
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Click to collapse
Great news!
Sent from my Nexus 5 using Tapatalk

Hi guys.
Sorry for bumping but I have the same issue and for me it wasn't fixed by going in recovery mode. I already tried deleting cash, and even tried getting back to factory settings. But still, when i restart the phone, the same loop keeps occuring.
At first it always just went to 'google' and then rebooted and rebooted. Now it just keeps stuck with the google logo (the 4 colour image).
Could someone help me possibly?
Thanks in advance
Kevin

cryptail said:
Hi guys.
Sorry for bumping but I have the same issue and for me it wasn't fixed by going in recovery mode. I already tried deleting cash, and even tried getting back to factory settings. But still, when i restart the phone, the same loop keeps occuring.
At first it always just went to 'google' and then rebooted and rebooted. Now it just keeps stuck with the google logo (the 4 colour image).
Could someone help me possibly?
Thanks in advance
Kevin
Click to expand...
Click to collapse
Hi Kevin,
Try LG flashtool. Link in my signature. If you have the 32GB version of the american nexus 5 (D820) you can use the converted firmware without any problem. It was tested numerous time.
You can also try to reflash stock google rom in fastboot mode http://forum.xda-developers.com/google-nexus-5/general/tutorial-how-to-flash-factory-image-t2513701
If you are using LG flashtool and you get error about cant format userdata and/or cache or by checking the flashing log you see timeout errors then your phone have a fauilty emmc. If you are using the fastboot method and you see "remote: flash write failure" text in the CMD window then you have fauilty emmc. Your only option is to rma your phone if bought from google or claim your warranty from LG if your phone is not from Google and you have the receipt of your phone.

Can the nexus 5 turn on without a power button?

I have access to the phone for now, but I'm worried if it ever dies, I won't be able to boot because the power button is shot.
Is there any way to boot my phone from it being in a completely shut off state? Thanks.

BigJeff said:
I have access to the phone for now, but I'm worried if it ever dies, I won't be able to boot because the power button is shot.
Is there any way to boot my phone from it being in a completely shut off state? Thanks.
Click to expand...
Click to collapse
No , but even the scrawnies mobile shop/service can replace that button for less than 15 $ .

Niflheimer said:
No , but even the scrawnies mobile shop/service can replace that button for less than 15 $ .
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Click to collapse
BigJeff said:
I have access to the phone for now, but I'm worried if it ever dies, I won't be able to boot because the power button is shot.
Is there any way to boot my phone from it being in a completely shut off state? Thanks.
Click to expand...
Click to collapse
@Niflheimer is wrong. If you want to boot without a power button simply hold down the "volume down" button. and plug your phone into a power source. It will go straight into fastboot mode. You will need android SDK installed on your computer here, then load your nexus 5 into fastboot mode (like mentioned previously) and type "fastboot reboot" you device will power on.
no power button needed

Sorry , I thought he meant without external devices.
Sent from my Nexus 5 using XDA Free mobile app

Yea he's wrong

drago10029 said:
@Niflheimer is wrong. If you want to boot without a power button simply hold down the "volume down" button. and plug your phone into a power source. It will go straight into fastboot mode. You will need android SDK installed on your computer here, then load your nexus 5 into fastboot mode (like mentioned previously) and type "fastboot reboot" you device will power on.
no power button needed
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This is exactly what I was looking for, you saved my phone!
Thanks!

Ive tried what was mentionned but no way to select the start option on the menu because there is no power button. Any other way to bypass this without the actual power button?

Pastelbaou said:
Ive tried what was mentionned but no way to select the start option on the menu because there is no power button. Any other way to bypass this without the actual power button?
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Click to collapse
you don't need the power button, just boot into fastboot as said above and, if you got fastboot working on your pc, send "fastboot reboot" and it will boot into the system

[Resolved] [Q] Asus Zenfone 5 stuck at boot screen (soft brick maybe)

Hey guys...
My Zenfone 5 won't boot up. It just stops at the android screen and doesn't go any further.
I can't remove the battery as i don't have the proper tools.
how it got bricked:
I powered off my phone by pressing power button and shutdown, it was connected to my pc at the moment. i didnt wait for the charging symbol(the green battery with a lightning symbol in center) to show up, but i tried to boot into bootloader before the charging symbol showed. when i got the android screen i didnt let go the power button, so my device switched off again. once more i tried into bootloader, i didnt let go the power button, again switched off. now i hold both power and volume up to go into bootloader, and i let go power button, but it is stuck at the same screen and wont go any further.
i tried adb reboot but adb doesnt recognize my device.
Please help.
Device runs android 4.4.2 and is rooted.

Never mind...
I got it working after i hold the power button for 8 seconds and then rebooting again.
A good bit of advice: don't be hasty when ur modifying your phone. I should have thought twice before starting this thread.

Do u know how to unlock the Asus Boot loader and lock the boot loader back.
Sent from my SM-N9005 using XDA Free mobile app

Predator Aaron said:
Do u know how to unlock the Asus Boot loader and lock the boot loader back.
Sent from my SM-N9005 using XDA Free mobile app
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Click to collapse
The asus bootloader is already unlocked, to the best of my knowledge. (when i tried power button+ volume up while switched off, and released ONLY the power button when the "in search of incredible" screen showd up, i got into the stock bootloader direclty, which should be droidboot.)

Nexus 5 won't boot, not even into recovery mode

I don't think it's the "boot loop" problem. My issue is that when I hold the power button, the google logo comes up, but just stays there indefinitely. From there, holding the power button again will turn it off, but then back to the google logo. I can get into the fastboot menu by holding the vol-down button on the restart, and here's what the fastboot mode options do:
start - boots and freezes at the google logo
restart bootloader - turns off then returns to fastboot mode
recovery mode - screen turns dark, but still on, in which case I can't do anything but hold the power button
power off - turns the phone off
I cannot figure this problem out. I have read many forums and none seem to help. The phone is completely stock and the bootloader is not unlocked. I did not update anything right before this issue, nor have I ever unlocked the bootloader or flashed anything else etc. If it is not possible to get this phone to work again, I would at least like to be able to recover the data on it. I am hoping this is possible. When the phone is in fastboot mode, and I plug it into my windows computer, the device shows up in devices and printers, but I cannot get the files from windows explorer. If there is any other information I can provide, please ask. Thank you all so much.

When you're in recovery mode does anything happen when you simultaneously press and release the power and vol up buttons?
Sent from my [device_name] using XDA-Developers Legacy app

When I pressed recovery mode and it goes to the dark screen, I pressed vol up and power at the same time and nothing happened; it stayed on the dark screen. This dark screen is not off, the screen is still on but it is black.

I'm not sure what to tell you. I was hoping that even though the screen was dark you'd be able to get into recovery. If you can get into recovery it might be possible to use adb to pull files. But you'd need usb debugging enabled and even then it's a pita.
Sent from my [device_name] using XDA-Developers Legacy app

Even if there is no way to get the phone working again, is there any way of recovering the data? Can I plug it into my linux machine perhaps and rip the data that way?

I'm not very familiar with linux so I'm not sure. But you'd have to have USB debugging enabled and in recovery. You can't from the bootloader. But since it appears you can get into the bootloader, before I'd give up I'd try flashing the system and boot images from the factory image with fastboot. And then cache and vendor images.
Sent from my [device_name] using XDA-Developers Legacy app

I'm having the exact same problem though I can access ROM. Screen stays dark when I enter recovery mode. Rebooting to recovery from ROM shows google splash screen and immediately goes into fastboot mode. What's worse for me is that USB port is damaged, so I cannot access fastboot or adb

When I try to flash the images, it tells me it fails because it's not supported in locked devices. I suspect it is because I have not ever unlocked the bootloader. However, doing so wipes the data, correct? Is it time to give up on the local data?

forgetswift said:
When I try to flash the images, it tells me it fails because it's not supported in locked devices. I suspect it is because I have not ever unlocked the bootloader. However, doing so wipes the data, correct? Is it time to give up on the local data?
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Click to collapse
Did you enable developer options in settings and then enable oem unlock? You need to do that before you can unlock the bootloader. And, yes, unlocking the bootloader does for the device.
Sent from my [device_name] using XDA-Developers Legacy app

Okay, I have given up on the data on the device, now I just want it to work. I used the command "fastboot oem unlock" which took me to the "are you sure" screen on the phone, and when I said yes, it goes to the fastboot page and says "erasing..." on the bottom but gets stuck there. Anything I can do?

How long does it say "erasing data" after selecting "Yes" to unlock the bootloader? It should not take more than 15 minutes.