[Q] Getting to fastboot without a full boot first - Nexus 5 Q&A, Help & Troubleshooting

Hey guys
This might seem basic. Of course I can use adb or the buttons to get to the bootloader/fastboot. But occasionally when I'm messing with my n5, I do something that forces a reboot, or maybe I accidently hit the wrong key, or don't do the buttons right - now it's booting up, but, as often happens at these times, now you have to wait for the applications to 'optimize'.
That takes a good long while with 200+ apps! I know I can hold the power and force another reboot, but I can never seem to get it to go to the bootloader while forcing a boot by holding the power/vol+/vol- .
Am I missing something, or is there no way to "abort" a boot, and somehow get to fastboot mode ?
On my old phones, I would pull the battery, jumping straight to "power off" mode, then hold the vol and power like usual and be off to the races.

bluenote73 said:
Hey guys
This might seem basic. Of course I can use adb or the buttons to get to the bootloader/fastboot. But occasionally when I'm messing with my n5, I do something that forces a reboot, or maybe I accidently hit the wrong key, or don't do the buttons right - now it's booting up, but, as often happens at these times, now you have to wait for the applications to 'optimize'.
That takes a good long while with 200+ apps! I know I can hold the power and force another reboot, but I can never seem to get it to go to the bootloader while forcing a boot by holding the power/vol+/vol- .
Am I missing something, or is there no way to "abort" a boot, and somehow get to fastboot mode ?
On my old phones, I would pull the battery, jumping straight to "power off" mode, then hold the vol and power like usual and be off to the races.
Click to expand...
Click to collapse
To force a reboot into fastboot mode, hold Power + Vol down. You can do it whenever you want.

That's ^ the procedure... For me the easiest is to hooks power to force reboot once it vibrates and starts to go black let go of power and hold volume down to get into bootloader.

Related

major problem...

So... I've tried to update my rom and I've done it. Didn't like the ROM and tried to change it.
soooo. I messed everything up. My magic can't boot (it stalls on the boot screen showing "HTC Magic") and most important, I can't enter fastboot to restore a working ROM
Any ideas on this one before I go to HTC Support?
regunus said:
So... I've tried to update my rom and I've done it. Didn't like the ROM and tried to change it.
soooo. I messed everything up. My magic can't boot (it stalls on the boot screen showing "HTC Magic") and most important, I can't enter fastboot to restore a working ROM
Any ideas on this one before I go to HTC Support?
Click to expand...
Click to collapse
can you not get to the mode pressing home and power.
from there you should be able to use adb push to send new update to sd card
magpie2000k said:
can you not get to the mode pressing home and power.
from there you should be able to use adb push to send new update to sd card
Click to expand...
Click to collapse
nope. Every key combined with the power button just boots the device and show the "htc magic" logo. nothing more.
I had the same sort of thing once. I removed the battery and before I put it back, I already pressed the home-key as well. Then it went into fastboot mode after I put it back in. With this way I could sent a new update.zip to the phone, flash it and then it was working again
Hope this helps
Machielh said:
I had the same sort of thing once. I removed the battery and before I put it back, I already pressed the home-key as well. Then it went into fastboot mode after I put it back in. With this way I could sent a new update.zip to the phone, flash it and then it was working again
Hope this helps
Click to expand...
Click to collapse
Well, it's not hard to send the update.zip. I can use a microSD 2 USB and copied it that way.
By the way I think it's the "return" key to enter fastboot. Not "home".
Tried the battery-removal trick. Didn't work.
Take out your battery, hold the volume down button and put the battery back in whilst you're holding the volume down. This in theory should bring you to fastboot. Just keep holding the volume down until you reach the fastboot screen. If after you put the battery in, nothing happens, keep holding the volume down and press the power button...
Should work...
TigerTael said:
Take out your battery, hold the volume down button and put the battery back in whilst you're holding the volume down. This in theory should bring you to fastboot. Just keep holding the volume down until you reach the fastboot screen. If after you put the battery in, nothing happens, keep holding the volume down and press the power button...
Should work...
Click to expand...
Click to collapse
didn't work
One other thing to try is to hold the two left most keys on the front of the phone (these are different depending on your phone brand) whilst holding power, this will take you to a recovery screen where perhaps you can do something from there?
I'm assuming you get to see a splash screen first and then you see the HTC Magic logo...
TigerTael said:
One other thing to try is to hold the two left most keys on the front of the phone (these are different depending on your phone brand) whilst holding power, this will take you to a recovery screen where perhaps you can do something from there?
I'm assuming you get to see a splash screen first and then you see the HTC Magic logo...
Click to expand...
Click to collapse
the 2 most left keys are the "answer" and "home" buttons. tried it. still getting the logo.
the phone vibrates and shows the logo...
Turn it in for repairs.
regunus said:
the 2 most left keys are the "answer" and "home" buttons. tried it. still getting the logo.
the phone vibrates and shows the logo...
Click to expand...
Click to collapse
Well, I am exlcuding the green call button and the red end button (which you use to run on your phone), but if it's freezing at the logo where it vibrates, then there is a problem.
I had a similar thing, but I was able to boot my phone into fastboot/recovery with the battery trick.
My two left buttons on my device are the home button and the menu button. Try holding this down when you put the battery back in. Unfortunately, the situation doesn't sound too hopeful.
TigerTael said:
Well, I am exlcuding the green call button and the red end button (which you use to run on your phone), but if it's freezing at the logo where it vibrates, then there is a problem.
I had a similar thing, but I was able to boot my phone into fastboot/recovery with the battery trick.
My two left buttons on my device are the home button and the menu button. Try holding this down when you put the battery back in. Unfortunately, the situation doesn't sound too hopeful.
Click to expand...
Click to collapse
did you try powering on while holding only the home button?

HELP! Bootloader unresponsive!

So, I was trying to flash my NS back to stock from TWRP becuase my power button's broke and I'm sending it in.
Anyways, TWRP crashed during flashing (wow....recovery crashing NOT good), and I cant boot the phone except by plugging it in from being off. However, when I hold vol up and get to bootloader by doing that, the bootloader is completely unresponsive to vol presses, and my comp doesnt see the device.
This is NOT good. But I'm clueless as to how to fix something like a bootloader issue. Anyone?
I would try odin. Search around the Samsung webiste they should have an exe which flashes the phone back to factory default. I've seen one posted around here but it depends which version of the phone you have.
Odin requires very careful use. DO NOT CLEAR YOUR EFS!
It may be your only option though.
If you can jimmy your power button and get into the normal bootloader then follow these steps:
1) install Ubuntu
2) install Android sdk for gb or ics whichever you are using
3) install fastboot (download it from cyanogenmod wiki and copy it to Ubuntu's sbin folder)
4) in bootloader menu, connect USB, then in Ubuntu terminal type fastboot reboot recovery (may be reboot-recovery, can't remember)
You should be able to use your phones capacitive buttons to navigate the menu and install a stock ROM
Sent from above
Yeah. Totally forgot you can do that. Try what he said.
Problem is, fastboot doesn't work. The bootloader is completely unresponsive.
It's like it launches into a crash. I can see the options, but the vol buttons dont do anything. However, those buttons work, otherwise I wouldnt be able to even get THAT far.
I'm trying to get the power button to register a press (it randomly does, but Ive had hours of no luck).
Any other ideas? Why would the bootloader launch into a crash. I wonder if it's because the phone is being turned on via power cable instead of the pwr button, but that seems unlikely.
On a side note, I have my efs backup from when I was using 2.3.7, so I've got it handy if I can ODIN the thing, but I dont know crap about odin.
Read his response again. I don't think you understood what he said. You can initiate those commands through your PC instead of pushing the buttons.
obsanity said:
Read his response again. I don't think you understood what he said. You can initiate those commands through your PC instead of pushing the buttons.
Click to expand...
Click to collapse
Sorry, I should have elaborated more.
I have tried on both my PC and Mac (via terminal app) to see the device under 'fastboot devices' command. No devices show up, so it's not even seeing the thing. Neither computer sees the device as being hooked up, as far as I can tell.
It'll boot into the unresponsive bootloader when I plug the cable in and hold vol up. At that point, nothing else happens. Doesnt show up on fastboot, etc.
sounds like your power button went. thats the #1 complaint i read about the power button going, the unresponsive volume buttons. my power button is gone to(will register a response every once in a while, on its own. my volume buttons dont register either when in the bootloader. but, i can get them to register. what i do is take the battery cover of, and gently flick the phone with my fingers right near the power button, but on the back of the phone. most the time, the power button will register that i pressed reboot bootloader, but, sometimes it allows me to select up or down with the volume keys. if it reboots bootloader, i just try again. ive got it down to an art since im in the bootloader often, it takes me about 20 seconds to get the volume keys going up or down. at first it would take me 3-5 minutes. i hope that helps.
simms22 said:
sounds like your power button went. thats the #1 complaint i read about the power button going, the unresponsive volume buttons. my power button is gone to(will register a response every once in a while, on its own. my volume buttons dont register either when in the bootloader. but, i can get them to register. what i do is take the battery cover of, and gently flick the phone with my fingers right near the power button, but on the back of the phone. most the time, the power button will register that i pressed reboot bootloader, but, sometimes it allows me to select up or down with the volume keys. if it reboots bootloader, i just try again. ive got it down to an art since im in the bootloader often, it takes me about 20 seconds to get the volume keys going up or down. at first it would take me 3-5 minutes. i hope that helps.
Click to expand...
Click to collapse
LOL simms thanks. I had a feeling you might chime in here since I had msg'd you earlier about my pwr button going out.
The thing that sucks is that I was just restoring it to stock in TWRP and it just locked up for some reason. I knew as soon as it happened that I was in trouble. I'll keep messing with it and see if I can get it to register 'Reboot Bootloader'.
I was actually wondering about that earlier. I figured that if the vol keys didnt work, then the pwr button wouldnt either in this situation. I know mine randomly registers presses, but now it's being a *****.
We'll see......
try going into the bootloader and give it a few smack on the back, see if thatll register and "press" reboot bootloader(since its the first option). the first time i went into the boatloader after my power button went, i thought that i was **** out of luck too. but, it turned out fairly very manageable with some practice. i usually flick it very lightly to get the volume buttons to move up and down, to hard and reboot boorloader registers.

[Q] How to boot to Hboot to recover

My HOX is just rebooting over and over I did boot loader unlock with the one all in one app and then flashed a kernel for CM10. I got the boot.img from the zip file as the directions said but now it just boots to HTC screen with red letters then reboots again.
If I could get it to power off and then boot to recovery I could try to flash another ROM or if I could boot to Hboot could try another kernel flash but nothing I do seem to make any difference it just keeps rebooting to HTC screen with red letters saying this is for development purposes.
I tried holding the down volume and power to reset it but does not work tried holding up volume and power to get to Hboot but nothing changes. As long as I hold down the power button it says off but one I let go it comes back on after a few second but volume up does nothing.
Any suggestions?
I got into recovery finally hold down just the volume down with out pressing power
Glad you got it sorted out. For the future, and for benefit of other users, I point out the following: Instances of not being able to get into bootloader are almost always just not knowing the proper button sequence.
If the phone is stuck with screen on, hold and press the power button for 5 seconds or so, until the capacity button flash, then the screen turns off (this should work in virtually all circumstances as long as the screen is on). The moment the screen goes dark, press and hold volume down, and don't let go until the white bootloader screen comes up.
If the phone is "stuck" on, you might be able to press and hold vol down before, or the same time you press power button (then as described above, keep holding vol down until hboot comes up). But if the phone is booted, the timing of this method can be a bit tricky. Press it too soon, and it has the effect of making the volume go down, then to vibrate, instead of the desired effect. Press it too late, and it will probably boot into Safe Mode. But as long as you start holding vol down when the screen is black (before the white HTC boot splash) you should have it right.
If the phone is fully powered off, press volume down, keep holding it. Press the power button for about 3 seconds (don't need to hold it until the capacitive buttons flash). Then release power, don't release vol down yet, until the white bootloader screen comes up. This will only work if "Fast boot" is not selected in Settings>Power.
Many people seem to think you press and release the power button and vol down a the same time, which will only cause you to boot normally, or in Safe Mode, or in your case the boot splash.

[Q] How to shut this thing off(one S villeC2)?

This might be the stupidest quetsion ever but, I'm totally helpless.
I need to access the recovery, I flashed a rom which stucks at the boot screen, I need to flash another yet I cannot shut this thing of. I keep pressing the power button for 10secs, 3buttons starts to flash and screen goes dark. When I let it go, it restarts.
How can I power of this device without accessing the OS?
Desefun said:
This might be the stupidest quetsion ever but, I'm totally helpless.
I need to access the recovery, I flashed a rom which stucks at the boot screen, I need to flash another yet I cannot shut this thing of. I keep pressing the power button for 10secs, 3buttons starts to flash and screen goes dark. When I let it go, it restarts.
How can I power of this device without accessing the OS?
Click to expand...
Click to collapse
Hold it until the buttons stop flashing, about 20 seconds.
Sent from my Nexus 4 using Tapatalk
I keep pushing the button for way longer than that. Still it reboots.
Take a look
watch?v=EQL-IvTZoUk
Originally Posted by no99sqrd View Post
Little late to the party, but I've found the best way to get into boot loader wiht any consistency is to hold the volume down and power button for five seconds or so, then let go of the power button (while holding volume down), then tapping the power button. Boot loader should pop up
Hope this helps!
Click to expand...
Click to collapse
This solves it all!

Blank Screen Bootloop?

Hi Everyone,
Phone decided to randomly turn off (at around 80% charge) and now won't boot. Have tried all the basic TS guides.
have tried:
-Charging - no on-screen displays
-Holding power button for various intervals
-Button combinations (Power + vol up....etc)
Connecting to PC gives me an indication that it has detected a USB connection, then consistently after ~40s I get the disconnect notification sound. Then off for 20s and the the cycle repeats.
I'm assuming it is stuck in bootloop for some reason but still nothing from the screen.
Phone hasn't been dropped, rooted, is running stock ROM etc...
any ideas?
Assuming the bootloop isn't caused by hardware failure then you can try forcing your phone into its Recovery mode by holding down the power button and volume down button simultaneously. From here, you may be able to roll your phone back or restore a previous backup. However, this often results in data loss, which isn't ideal, so you might have to weigh up your options.
If this doesn't work, you'll need to enter your smartphone's Safe Mode. When your phone is booting, and you see the manufacturer's name appear, press and hold the volume down button to put your device into Safe Mode. Here, you can follow prompts to hopefully remove whatever program, app, or software updates forced your phone into a bootloop.
xXx yYy said:
Assuming the bootloop isn't caused by hardware failure then you can try forcing your phone into its Recovery mode by holding down the power button and volume down button simultaneously. From here, you may be able to roll your phone back or restore a previous backup. However, this often results in data loss, which isn't ideal, so you might have to weigh up your options.
If this doesn't work, you'll need to enter your smartphone's Safe Mode. When your phone is booting, and you see the manufacturer's name appear, press and hold the volume down button to put your device into Safe Mode. Here, you can follow prompts to hopefully remove whatever program, app, or software updates forced your phone into a bootloop.
Click to expand...
Click to collapse
It won't boot at all, the screen doesn't turn on. But surely something like this doesn't just randomly fail
My recommendation: take phone to authorized service center and let them try to fix it.

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