OPO can't access fastboot mode - ONE Q&A, Help & Troubleshooting

Hi,
I have a problem with my One Plus One. When I open the phone, there is only the "CYANOGEN RECOVERY" screen that appears.
I can access sideloading using the menu but it is not working. I tried to sideload CM12 and it is looping back to the recovery screen
More over, I cannot access fastboot mode. I tried to use adb to reboot the phone in fastboot mode but adb only sees the phone in sideload mode
The Power + vol up combinaison doesn't work...it will come back to the recovery screen
Any idea ?

gspfranc said:
Hi,
I have a problem with my One Plus One. When I open the phone, there is only the "CYANOGEN RECOVERY" screen that appears.
I can access sideloading using the menu but it is not working. I tried to sideload CM12 and it is looping back to the recovery screen
More over, I cannot access fastboot mode. I tried to use adb to reboot the phone in fastboot mode but adb only sees the phone in sideload mode
The Power + vol up combinaison doesn't work...it will come back to the recovery screen
Any idea ?
Click to expand...
Click to collapse
Are you attempting to boot into fastboot with the cable connected? That's been known to cause issues, so unplug and try again.

Related

[Q] P3100 Unlock Bootloader, FastBoot, Modes

I apologize if I have understood this all incorrectly, but kindly clarify the following for me.
What I have already done:
1. Installed CWM (ClockWorkMod) on the tablet: Galaxy Tab 2 7.0 using Odin
2. Installed the rooting zip file from external sd
3. Made a backup image on an external sd
What I need to do:
1. Flash a custom ROM onto the device from my PC using fastboot
Errors:
1. Fastboot devices returns nothing (absolutely no response... please find the attached pic)
2. Adb reboot bootloader - just reboots the OS (not in fastboot)
3. Fastboot oem unlock says waiting for device endlessly.
My Queries:
1.I have a recovery mode and download mode (aka odin mode). Is either of them the FASTBOOT mode or is fastboot something completely different. If so how to get into FASTBOOT mode??
I read I have to get a USB icon and a Fastboot mode display on screen. I do not.
2. Why is my device not showing under fastboot devices (on download mode, neither show the device.), but adb devices shows the device under recovery mode
3. Is it possible to flash a ROM using fastboot if I have CWM installed. Or does CWM disable fastboot?
4. Also does this device have a Fastboot mode at all? If yes how to get into Fastboot mode??
From what I've read here, there is no fastboot mode on the Tabs.
Balthazar B said:
From what I've read here, there is no fastboot mode on the Tabs.
Click to expand...
Click to collapse
In that case, how do I flash a custom ROM onto the device?
Thanks!
rtindru said:
In that case, how do I flash a custom ROM onto the device?
Thanks!
Click to expand...
Click to collapse
load it on your external sdcard, boot into cwm and do a fullwipe/factory reset then install the zip from sdcard. poof, rom installed
to boot into cwm, turn off the tablet.
press and hold power and volume down (the one closes to power button) once the samsung tablet logo appears let go of power and continue holding vol down until cwm appears (this can take a couple minutes)
Thanks then!
Darunion said:
load it on your external sdcard, boot into cwm and do a fullwipe/factory reset then install the zip from sdcard. poof, rom installed
to boot into cwm, turn off the tablet.
press and hold power and volume down (the one closes to power button) once the samsung tablet logo appears let go of power and continue holding vol down until cwm appears (this can take a couple minutes)
Click to expand...
Click to collapse
Well thanks for the info.

[Q] Stuck on fastboot with broken pwr button

Hi I have the following problem: after I flash Cannibal open touch recovery I could not flash any .zip file so I decided that I go back to CWM touch so I restarted my phone. Phone booted into fastboot mode with the following message no boot or recovery IMG so I decided to flash recovery with fastboot. I opened the folder with fastboot command flash_recovery connect the phone to usb but the command line always showed waiting for device. I unplugged the phone and tried to press the volume keys but nothing happened as if it freezes. I pulled the battery and try it again but no response. I cant connect phone to odin because it has broken power button and after I insert the battery it always turn on itself. Please advise me what to do thank you.
Seems your drivers have gone corrupt. Try a different system and use Nexus Root Toolkit.
I tried this option but without success. Phone does not respond to anything. No volume up or volume down. It´s just stucked on bootloader.
This link says that if you get <waiting for device> , then fastboot is not configured properly. Check out the link over here.
You may also try this command "fastboot boot recovery-clockwork-6.0.4.3-crespo.img" to boot into recovery without installing it.
no hope
The reason you cannot navigate in fastboot/bootloader is that your powerswitch is probably stuck in the "on position"...does your device immediately power on when battery is inserted?
The way i solved this a few months ago was to completly remove my powerswitch from the board power my device on..use quickboot to enter fastboot menu and input commands...
Also completely removing your power button makes powering on your nexus alot more complicated.
what i did was go to download mode (holding vol+ and -) and pluging phone in..this takes you to download mode
then you need to get a copy of a boatloader file to flash via odin which will reset your phone and power it on...pm me if interested i can provide you with files necessary

Htc one a9 can't boot no usb debugging

I really screwed up this time...
I did a factory reset on my phone, which means that the settings are back to default and I don't have USB debugging. Me being careless, I was in download mode and while trying to setup TWRP I typed:
"fastboot flash boot twrp-3.0.0-3-hiae.img"
instead of
"fastboot flash recovery twrp-3.0.0-3-hiae.img"
Now whenever I boot it takes me to my recovery and I can't change the boot image because USB debugging is disabled. I hope my htc isn't done because of my carelessness.
what happens when you tell twrp to reboot to recovery or download mode? I'm guessing that those are still factory, if so, fastboot commands might work in one of those, if you can get into one, to reflash boot.
Recovery mode shows a phone icon, then you need to press and hold power button and tap vol up to go fully into recovery mode.

Lenovo tab 2 A10-70 Boot looped , Unable to get into bootloader or recovery

*accidently put this in the wrong thread, if a mod could move it. thanks*
So I wanted to get rid of the chinese recovery that was on my lenova tablet and messed up along the way.
I first enabled debbuging USB on my tablet and used adb on my pc to boot my tablet into fastboot (I am unable to enter fastboot any other way).
I ran this line: "fastboot oem unlock" and then "fastboot flash recovery twrp.zip".
The TWRP version i flashed onto the recovery was a wrong version causing my tablet to go into a bootloop on restart.
I get no response from vol up+power, vol down + power, vol up+vol down+power.
I had to let my tablet battery run out since the back battery is unremovable.
The tablet shows the splash screen when it boots and restarts after about 5 seconds.
I have no idea on what to do so i turn for help here

[GUIDE] [TA-1032] How to unlock bootloader, install TWRP and Magisk

Code:
TRY THIS AT YOUR OWN RISK! This could brick your phone. It shouldn't but it can. If you brick your phone, or anything stops working on your phone, YOU are responsible.
Reboot combinations:
Fastboot: Shutdown and with USB cable hold power and volume down until it says FASTBOOT MODE at the bottom
Recovery: Shutdown and with USB cable hold power and volume down until the
Code:
Please release key to power off *
dissapears.
Unlocking Bootloader
Code:
Note: This will delete all user data! Backup all your data before doing this!
This part of the guide is part of the tutorial made by @Arin59 at https://forum.xda-developers.com/nokia-3/how-to/method-to-unlock-bootloader-nokia-3-pie-t4012285
First of all convert your serial number (should look like NE1*************) to MD5 Hash and enable OEM Unlock in developer options.
Then reboot to fastboot and type
Code:
fastboot oem key {HASH}
then type
Code:
fastboot flashing unlock
.
To reboot to Android, run fastboot reboot.
Installing TWRP
Code:
This will delete your user data, but it should be already deleted.
You can use any TWRP image made for this device but I had the most success with https://forum.xda-developers.com/nokia-3/development/twrp-teamwin-recovery-nokia-3-t3762512 .
Flash your TWRP Image chosen with
Code:
fastboot flash recovery your-recovery-image.img
and then reboot to recovery.
In TWRP go to Wipe and then Format Data and type yes.
Install Magisk
Install Magisk normally.
< waiting for device >
I put the phone in fastboot mode and ran fastboot with the oem key md5 hash command but it just said "< waiting for device >". I think it might be because I forgot to install the Nokia 3 USB drivers. I'm using a linux computer, do I need to find OS specific drivers?
edit: And now my phone is stuck in fastboot mode and for some reason will not shutdown no matter how long I hold down the power button for.
Totalitor said:
I put the phone in fastboot mode and ran fastboot with the oem key md5 hash command but it just said "< waiting for device >". I think it might be because I forgot to install the Nokia 3 USB drivers. I'm using a linux computer, do I need to find OS specific drivers?
edit: And now my phone is stuck in fastboot mode and for some reason will not shutdown no matter how long I hold down the power button for.
Click to expand...
Click to collapse
If you're using a linux computer, you should try running the command with sudo.
If it doesn't work, try with another cable (or computer if it doesn't work) and try again.
#AC said:
If you're using a linux computer, you should try running the command with sudo.
If it doesn't work, try with another cable (or computer if it doesn't work) and try again.
Click to expand...
Click to collapse
Thanks. I've since got it working. For some reason I had to use the -i argument (the interface argument) along with the code for the device (0x2e04) "fastboot -i 0x2e04 <command>".
However, I've recently bypassed the "NO COMMAND" screen and gained access to TWRP custom recovery but in trying to shut down the phone, it shuts down fine but only boots up in fastboot mode. Even using the fastboot reboot command from adb tools boots it up in fastboot mode. This is a problem as I need to boot it in its normal mode so I can download the magisk.zip file required for installing magisk but I seem to be unable to do so.
Totalitor said:
Thanks. I've since got it working. For some reason I had to use the -i argument (the interface argument) along with the code for the device (0x2e04) "fastboot -i 0x2e04 <command>".
However, I've recently bypassed the "NO COMMAND" screen and gained access to TWRP custom recovery but in trying to shut down the phone, it shuts down fine but only boots up in fastboot mode. Even using the fastboot reboot command from adb tools boots it up in fastboot mode. This is a problem as I need to boot it in its normal mode so I can download the magisk.zip file required for installing magisk but I seem to be unable to do so.
Click to expand...
Click to collapse
Try holding volume up and down at the same time while holding the power button.
#AC said:
Try holding volume up and down at the same time while holding the power button.
Click to expand...
Click to collapse
Thanks, it worked.
Though I tried wiping, but it didn't solve the booting issue. Unsure how to proceed at this point. I feel like I've tried everything. Actually, I just checked my /boot folder and it's empty...is that why it's always booting into fastboot?
I tried using adb to sideload the magisk.zip file but then the phone rebooted into stock recovery??
Any and all guides on this say to download the magisk.apk either into the SD card or internal storage, but I don't have a micro SD card and I can't access the normal mode of the phone to download anything.
What can I do?
I've flashed TWRP successfully but forgot to download the magisk.apk. Now whenever I boot up my phone, it boots into stock recovery mode automatically, even if I tell TWRP to reboot into system it reboots into Stock Android recovery. I can still access TWRP by holding down the up + power buttons on boot though, but I can't access the normal mode of the phone anymore.
I tried using TWRP's sideload feature with ADB tools to sideload Magisk.zip and it said it succeeded but in using TWRP's install feature to find the zip file, it wasn't in /sideload/ or /storage/ as both were empty.
How can I temporarily restore normal functionality so I can simply download the Magisk manager.apk?

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