Can't access bootloader screen - Nexus One Q&A, Help & Troubleshooting

I have been trying to root my nexus one for a while.
However, I can't access bootloader screen.
I've tried holding the trackball and power button already.
Thank you in advance

Power off.
Hold volume down.
Press power while still holding volume down.
Release power after about 3 seconds.
Then release volume down.
You can toggle between boot, recovery, etc, with the menus.
On screen menus will tell you how to navigate.
Get familiar with it, before you try and root, etc.
Sent from my Nexus One using XDA App

Related

[Q] Problem booting into Recovery

So.... Been playing with this for the last two days trying to root this phone.
I've rooted a few other phones, so I do have experience with the overall process, but I am unable to even boot this phone into Recovery. I have tried booting into recovery by holding down both volume buttons + power and from adb terminal "adb reboot recovery."
Neither method works. The phone will boot (or reboot from adb) and brings up the "at&t World Phone" screen and then nothing else appears. The first time I tried this it actually wouldn't boot up even after pulling the battery and trying to start normally, it still sat at the same screen. I let it sit all day today at the screen until the battery died. I was finally able to get it to boot up earlier.
If anyone can help, that'd be greatly appreciated. Let me know what info I need to add.
I usually just press and hold both volume buttons and power then release just the power button and keeping the volume buttons still pushed on the 2nd time the white at&t screen pops up... Works for me every time.
Sent from my SAMSUNG-SGH-I897 using XDA App
hold volume up+down and power key btw this is wrong section to post supposed to be in general
Oh sorry, didn't realize it was supposed to be posted in general.
I've tried the Volume Up/Down + Power and this does not work, as I stated originally.
I've also tried to do it from the adb shell, which also does not work.
Does anyone have any idea why I can't access recovery?
I"m having a similar issue. Holding volume up+down and power and releasing in any combination just boots the phone up. If I just hold volume up+down and power the phone alternates between the AT&T World Phone screen endless.
Yes u have to let go of the pwr button when the phone screen turns on
Sent from my SAMSUNG-SGH-I897 using XDA App
I've tried just about every combination of the Volume Up/Down + Power and no luck.
I've also tried the following ADB commands, with no luck, it just reboots the phone:
adb reboot recovery
adb reboot-boatloader
When I hold Volume Down + Power I get the a Yellow Triangle with a Android guy with a shove with the text "Downloading... Do not turn off Target!!!"
When I hold Volume Up + Power I get an Android guy with the following text: "POWER RESET or UNKNOWN UPLOAD MODE"
For kicks, I tried to to flash a rooted update.zip via the Volume Down + Power way with the Samsung update software, the same way I have done with the Samsung Moment. Wasn't sure if it'd work, but worth a try.
Any one else have any ideas or suggestions?
Phishie, do you have a final release version? Or anything special about the phone you have?
I just press the two volume buttons first (to make sure theyre pressed before you hit power), then press the power button, as soon as the screen turns on, I let go of everything and it works just fine, no need to have ridiculously complicated instructions.
The trick is to make sure both volume buttons are pressed BEFORE you hit power. Then release. Easy as pie
Also, if you guys are having too much trouble, just download the one click root/unroot. It will run, boot your phone into recovery, then all you have to do is scroll to install packages with volume key and hit power. Done.
Trust me, I am making sure I'm pretty the keys completely. I've literally tried it fifty times by now.
And I've also tried the One Click Root. This does not boot the phone into recovery either. It just sits at the AT&T World Phone screen forever and will actually get stuck here and will not boot up normal even by pulling the battery and powering it back up. It'll just get stuck at the for-mentioned screen. I have to connect it to adb and reboot it there to get it out of the loop it's stuck in.
that doesnt sound good. Maybe you need to try a factory reset? are you running stock rom and everything?
When I first got the phone I did a factory reset.
Yea, it's completely stock to my knowledge. But I have a different ROM than the final release version that everyone else has. This is a pre-production device.
same problem
I try all the combos as well, no luck, would the combos be different for 2e vs 3e recovery?
I try combo, it powers on, the same thing happens, the at-t comes up, goes for a second, then screen brightens, wait a bit and then the home row buttons light up, hangs there... doesnt matter which kernel or which rom I flash, same thing, adb and other stuff wont work as they need usb debugging enabled, which mine isn't.
Is there a way to mod the phone files and flash to enable usb debugging? Anyway to remap the buttons to 2 button vs 3 button?
Everyone post your methods for entering recovery please?

If you have difficulties to get in recovery/download mode

Hit volume up and keep pressing. Add startbutton and keep pressing and for last add powerbutton and keep pressing.
Keep pressed all 3 buttons until the phone shuts down and startup again (don't stop pressing in between). Recovery screen will show up.
If you do it this way, no need to pull out your battery first.
For me it works all the time.
To go in download mode just change volume up to volume down.
Sent from my GT-N7000 using xda premium

Reset when stuck

Hello is there any way to reset the phone (like when you take out the battery) on the htc one? I was installing a rom and it got stuck
Just keep holding the power button for about 10 seconds and it will act as a battery pull.
If that way doesn't work, for whatever reason, hold power button + volume down so you can get to HBOOT and select recovery. You can then reboot from there.
Sent from my HTC One via XDA Premium
Holding down the power button didnt work so i was trying out other combinations and pressing the power button twice then holding it down for 10 seconds seemed to work

[Q] Flashed Rom. Now touch screen wont respond

I flashed this rom ( Sprint_HTC_One_1.31.651.2_Stock_Rooted ) . Phone booted and touch screen stopped working. I'm in a rough situation because the phone also will not reboot. I've tried holding all buttons, just the power button, the power and volume down button. No resolve. Anyone have any suggestions on how to make this phone reboot (besides waiting for battery to drain lol )so I can try to install another rom and see if touch screen comes back. Thanks
You need the newest firmware it sounds like
Sent from my HTCONE using Tapatalk
I cant do anything with the phone though because its stuck on the lock screen. Cant touch anything and cant get it to reboot
Oh and I accidently posted in the wrong section... wasn't sure if I should just leave it up or delete it
Just ask the dev to move it....hold the power button and volume down then release power after about 7 secs and press it again but keep volume pressed the whole time to get to boot loader then go to recovery from there
Sent from my HTCONE using Tapatalk
that would work great if the phone was off...but the phone is on the lock screen... When I hold the buttons It counts down 3....2.....1 then hangs at 1.. Ive held the buttons for over a minute no dice..... It seems the only way to reboot is through ADB but I cant allow my computer to connect to the phone because of the screen being locked... wish there was another way to reboot this phone without waiting for the battery to die
KoolAidBigMan said:
that would work great if the phone was off...but the phone is on the lock screen... When I hold the buttons It counts down 3....2.....1 then hangs at 1.. Ive held the buttons for over a minute no dice..... It seems the only way to reboot is through ADB but I cant allow my computer to connect to the phone because of the screen being locked... wish there was another way to reboot this phone without waiting for the battery to die
Click to expand...
Click to collapse
Hold the power button until the home/recent apps buttons at the bottom stop blinking...if it reboots let go of the power and hold vol down this will get you to the bootloader
If it does not reboot press the power and let it start to reboot and hold vol down
The buttons just continue to blink.. no reboot just stuck at lock screen
KoolAidBigMan said:
The buttons just continue to blink.. no reboot just stuck at lock screen
Click to expand...
Click to collapse
If you hold the power button down long enough it will power down or reboot
I held the power button down for over 2 minutes... should I hold it longer? Here's what happens, after holding the power button... on about 5 seconds in a message pops up and says continue holding power button for reboot. I continue to hold it and a count down starts.... goes from 3 to 2 to 1.... the phone just stays at one no matter how long I hold the power button in for
KoolAidBigMan said:
I held the power button down for over 2 minutes... should I hold it longer? Here's what happens, after holding the power button... on about 5 seconds in a message pops up and says continue holding power button for reboot. I continue to hold it and a count down starts.... goes from 3 to 2 to 1.... the phone just stays at one no matter how long I hold the power button in for
Click to expand...
Click to collapse
hmmmm never seen that before, try holding power and vol down see if it gets you to bootloader
Yeah tried that... pretty much tried all button combinations for all amounts of length....this is how stumped I am. I've been a member on this site for years and I think this is the first time I ever had to post a question about a phone. I seem to always find an answer but this time I just couldn't I'm baffled as to what can be happening and why this phone wont reset.
Yeah I mentioned that in an earlier post. I cant adb because I cant unlock the phone to allow the computer to be trusted by the phone... I have the phone sitting on the table with a piece of tape holding the power button in causing the screen to stay on and keep the endless countdown going... hoping that kills it quick..... I guess that's the solution to this problem if anyone else may happen to come across the same thing lol
KoolAidBigMan said:
Yeah tried that... pretty much tried all button combinations for all amounts of length....this is how stumped I am. I've been a member on this site for years and I think this is the first time I ever had to post a question about a phone. I seem to always find an answer but this time I just couldn't I'm baffled as to what can be happening and why this phone wont reset.
Click to expand...
Click to collapse
Do it under a lamp or brightly lit room.
Sent from my One using Tapatalk
that's what I did lol ! looks to be down to about 25%!!
Plug in a USB otg cable and a USB mouse.
Light a fire for a man and you`ll warm him for a few hours...Light a man on fire and you`ll warm him for the rest of his life
???
How did you get yourself into that situation, lol. This is why I slightly perfer the Galaxy's because you can just pop the battery off. I get a HTC and just try and do as little as possible, and quad check everything.
Did you get it done atleast?
KoolAidBigMan said:
I held the power button down for over 2 minutes... should I hold it longer? Here's what happens, after holding the power button... on about 5 seconds in a message pops up and says continue holding power button for reboot. I continue to hold it and a count down starts.... goes from 3 to 2 to 1.... the phone just stays at one no matter how long I hold the power button in for
Click to expand...
Click to collapse
When you are holding the power button down and it starts to count down shine a flashlight at the light sensor to the left of the speaker on the top (or hold it under a bright light). I had this happen to me before where it wouldn't simulate the battery pull. Just sat there. Apparently the phone has a built in defense to not reset in low light situations in case you accidentally hit the power button while the phone is in your pocket. The flashlight on the sensor trick works. http://forum.xda-developers.com/showthread.php?t=2314952

Can't get the recovery menu to work after update

For the most part, I haven't had any issues with my phone after lollipop. I'm liking the new features and the new pull down quick access buttons. For some reason though, when I boot into recovery mode, I can't seem to get the menu to pop up. I've tried every combination I can think off with the power button and volume buttons but nothing seems to work. Any ideas?
I've recently had to wipe the cache on my Turbo and the recovery mode does seem to have changed. With the phone powered off, hold the power button and volume down button until you get to the bootloader. Use the volume keys to navigate the menu and press the power button to select. Select recovery and you should see the Android icon laying down. Hold the power button FIRST for about two seconds and then tap the volume up button.
Yes, if you're wiping the cache it will take a long time. Do not freak out! :good: The ETA should be about 20+ minutes.
I've done it before on kitkat and know that it takes forever. The first time I did it though I was flipping out cause I thought it was deleting everything haha.
I did finally get it to come up using that method, and your right it has changed. You have to be really accurate when holding the power button and using the vol up arrow because I was trying that before and never could get it to come up.
Anyway thanks for the help.
After lolipop update it is reversed. Hold power button and tap on up volume... For sure
Sent from my XT1254 using Tapatalk

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