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[Q] Stuck in boot loop, can't detect in ADB or fastboot

Hey guys, I really need some help here, I'm not good at any of this stuff - my OPO just randomly got stuck on a boot loop, I have never played with the USB debugging or any of that or tried to flash anything else, I was using just stock cyanogen.
I've been reading around and I've downloaded all the drivers but still can't detect the device when I do the Shift + Right Click --> Run CMD "fastboot devices" or "adb devices".
I never enabled options such as the USB debugging or anything else, can someone please help me out? I'm really clueless to all of this stuff.

You must first put your phone in fastboot mode.
To put your phone in fastboot mode, turn it off, and then hold power+volume down until you get a screen with only the cyanogenmod logo. If you get to this screen, you're in fastboot mode. If you have installed the proper drivers in your computer, you should be able to connect to the phone from your computer. Connect your usb cable to the phone and the computer, open a dos box and type "fastboot devices". If you get a series of letters and numbers then you're OK.

jchen221 said:
Hey guys, I really need some help here, I'm not good at any of this stuff - my OPO just randomly got stuck on a boot loop, I have never played with the USB debugging or any of that or tried to flash anything else, I was using just stock cyanogen.
I've been reading around and I've downloaded all the drivers but still can't detect the device when I do the Shift + Right Click --> Run CMD "fastboot devices" or "adb devices".
I never enabled options such as the USB debugging or anything else, can someone please help me out? I'm really clueless to all of this stuff.
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Click to collapse
joanquro said:
You must first put your phone in fastboot mode.
To put your phone in fastboot mode, turn it off, and then hold power+volume down until you get a screen with only the cyanogenmod logo. If you get to this screen, you're in fastboot mode. If you have installed the proper drivers in your computer, you should be able to connect to the phone from your computer. Connect your usb cable to the phone and the computer, open a dos box and type "fastboot devices". If you get a series of letters and numbers then you're OK.
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Click to collapse
This, except that's the wrong button combo (power + volume down is for recovery). Use power + volume up to get to fastboot mode and then try the "fastboot devices" command.

Heisenberg said:
This, except that's the wrong button combo (power + volume down is for recovery). Use power + volume up to get to fastboot mode and then try the "fastboot devices" command.
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Click to collapse
I'm sorry for this mistake.

joanquro said:
You must first put your phone in fastboot mode.
To put your phone in fastboot mode, turn it off, and then hold power+volume down until you get a screen with only the cyanogenmod logo. If you get to this screen, you're in fastboot mode. If you have installed the proper drivers in your computer, you should be able to connect to the phone from your computer. Connect your usb cable to the phone and the computer, open a dos box and type "fastboot devices". If you get a series of letters and numbers then you're OK.
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Click to collapse
Thanks for your advice. This is the big problem I'm having, I've downloaded the SDK slim, and the driver manager and the 15 second installer things and installed all of them but still can't manage to detect my phone on fastboot.

jchen221 said:
Thanks for your advice. This is the big problem I'm having, I've downloaded the SDK slim, and the driver manager and the 15 second installer things and installed all of them but still can't manage to detect my phone on fastboot.
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What command are you using while in fastboot mode?

Heisenberg said:
What command are you using while in fastboot mode?
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Click to collapse
I'm using both
fastboot devices
adb devices
Fastboot devices comes back with nothing in the CMD box, ADB devices gives a message that says 'Devices:' but there are none listed.

jchen221 said:
I'm using both
fastboot devices
adb devices
Fastboot devices comes back with nothing in the CMD box, ADB devices gives a message that says 'Devices:' but there are none listed.
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Click to collapse
There's no point in using adb commands in fastboot because only fastboot commands work. What drivers do you have installed?
XDA Moderator
Transmitted via Bacon

Heisenberg said:
There's no point in using adb commands in fastboot because only fastboot commands work. What drivers do you have installed?
XDA Moderator
Transmitted via Bacon
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I've looked around for all sorts of drivers, I have the universal ADB, android SDK slim or something, is there a specific one I need?

jchen221 said:
I've looked around for all sorts of drivers, I have the universal ADB, android SDK slim or something, is there a specific one I need?
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Click to collapse
Uninstall whatever drivers you have installed, reboot your PC, install these drivers, reboot your PC, connect your phone, test fastboot (fastboot devices).

Heisenberg said:
Uninstall whatever drivers you have installed, reboot your PC, install , reboot your PC, connect your phone, test fastboot (fastboot devices).
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I tried that, but again no response in CMD when I type fastboot devices.
Although I just tried and am able to boot into recovery mode, would I be able to do some sort of factory reset there? I've already tried to wipe user data but I'm still getting a bootloop there.

jchen221 said:
I tried that, but again no response in CMD when I type fastboot devices.
Although I just tried and am able to boot into recovery mode, would I be able to do some sort of factory reset there? I've already tried to wipe user data but I'm still getting a bootloop there.
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Click to collapse
I can't remember what capabilities the stock recovery has, but if it's there it's worth trying.

jchen221 said:
I tried that, but again no response in CMD when I type fastboot devices.
Although I just tried and am able to boot into recovery mode, would I be able to do some sort of factory reset there? I've already tried to wipe user data but I'm still getting a bootloop there.
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Click to collapse
Heisenberg said:
I can't remember what capabilities the stock recovery has, but if it's there it's worth trying.
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Click to collapse
I managed to get it to work after resetting a bunch of the options, thanks so much for your help with this (even if I didn't get it to fastboot mode)

I have the same problem.
jchen221 said:
I managed to get it to work after resetting a bunch of the options, thanks so much for your help with this (even if I didn't get it to fastboot mode)
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Hey bro, I have the same problem. Can you please explain me how did you resolve it? This would be of great help. Thanks.

pavanakshay said:
Hey bro, I have the same problem. Can you please explain me how did you resolve it? This would be of great help. Thanks.
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for me too bro same problem please help me
---------- Post added at 08:28 AM ---------- Previous post was at 08:25 AM ----------
Heisenberg said:
Uninstall whatever drivers you have installed, reboot your PC, install these drivers, reboot your PC, connect your phone, test fastboot (fastboot devices).
Click to expand...
Click to collapse
i too having the same problem bro the driver link is not working please send me the link thankyou in advance

i am also facing the same problem that phone loops into fast boot mode whenever turned on i do totally every kind of drivers softwares and etc like tenorshare but all in vain i guess at last that phone must be enabled usb debuging in order to be detected as a active adb device,i pratically do this stuff by using another phone with enabled debuging and it was an active device andd can be processed further but when i disabled the usb debugging of same phone it was not working with adb interface i hope you understand,,,,but a miracle happenend i removed the battery for about a week and suddenly i pluged and try to turn it on hola it starts from roms boot logo

HELP!!!!! Stuck on bootloop and fastboot not working
i was flashing twrp on infinix s4 withfast boot. after flashing the device is stuck on bootloop. the recovery is not accessible (i press the key combo nothing happens) and fastboot combination is also not working. i tried connecting it with adb cmd and ran the command "adb reboot bootloader" but no device is detected.
ps: the link for drivers is broken

LG GPAD 7 stuck on Fast Boot

Purchased an Lg Gpad 7 Wifi tablet (v400) 2 weeks ago. Came with preinstalled Lollipop android so i couldnt install a recovery rom to flash any other custom roms. Downgraded to Kitkat version following the instructions on Xda forums and succesfully installed Twrp. When i installed Cyanogenmod 12.1 through Twrp i got stuck in fastboot screen.
Any suggestions and / or solutions would be greatly appreciated.

I had a similar problem.. Only mine was stuck at the bootloader. Go in TWRP and repair /data and other partitions. My data partition gave me an error since F2FS is a little flaky and some ROMs corrupted it (claimed they supported it). I would recommend erasing the system, cache and data partition if you can't get into TWRP.

The problem is i cant get out of fastboot whatever i try. It says start on bootloader but the tablet just restarts on an empty screen doing nothing.

Hakalai said:
The problem is i cant get out of fastboot whatever i try. It says start on bootloader but the tablet just restarts on an empty screen doing nothing.
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if you have an sd card, try removing that, then reboot.
if that doesnt work, try entering fastboot command, fastboot continue

Tried without sdcard and i get the same fastboot screen.
How can i give any commands? The only options i have are Restart Bootloader / Restart / Power off. Tried restarting bootloader but i get nothing in return tablet just stays on with nothing on screen.

Hakalai said:
Tried without sdcard and i get the same fastboot screen.
How can i give any commands? The only options i have are Restart Bootloader / Restart / Power off. Tried restarting bootloader but i get nothing in return tablet just stays on with nothing on screen.
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you said it was stuck on fastboot, if thats the case, install any needed drivers on your pc, connect device to it, open a terminal in the fastboot dir (after you go get fastboot), then try those commands i gave. you could also try, fastboot reboot dont think i mentioned that before.

bweN diorD said:
you said it was stuck on fastboot, if thats the case, install any needed drivers on your pc, connect device to it, open a terminal in the fastboot dir (after you go get fastboot), then try those commands i gave. you could also try, fastboot reboot dont think i mentioned that before.
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Did as you said but every command i gave gives me an error message in adb terminal. There are new lines in fastboot menu in tablet now. Bottom two are SECURE BOOT - enabled & LOCK STATE - locked.

Hakalai said:
Did as you said but every command i gave gives me an error message in adb terminal. There are new lines in fastboot menu in tablet now. Bottom two are SECURE BOOT - enabled & LOCK STATE - locked.
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hmm, ok, im guessing it would have said that normally, when not broken. all the command does is try to release it past where its stuck. it doesnt actually flash, lock, unlock, or change anything.
imo, this seems good, because now we know fastboot is working.
i own lg devices, but not your specific device. i would hate to give you some bad advice and make your tablet broken more, but if it were me in this situation, i would try to flash the factory KK firmware you used to downgrade with odin or however you did it. hopefully, that will clean everything up and let it boot properly.
if for whatever reason you cant do that, we could try extracting the factory file, and just flashing recovery and system, those should be the only things that got changed putting on twrp and cm normally.

Sorry, I have the serious proplem wtih my LG pad V400, I rooted it and using <LG Flash Tool 2014> with <V40010c_00.kdz> to downgrate the firmware but their is error then my LG pad stuck in fastboot menu as with just turn off, restart and restart bootloader. if i seclect one one them the tablet just logged again the fastboot menu
it stuck on the fastboot menu and i cannot do nay think with it. I can restart with factory restore mode but when select yes to restore, it will restart and log in fastboot menu again.
I downloaded adb and fastboot program and put in one folder <Minimal ADB and Fastboot> in C:\Program Files (x86)\Minimal ADB and Fastboot
I dont have recovery image so i download file <cm-13.0-20160421-NIGHTLY-v400-recovery.img> form your link to download TWRP file
move it to folder of fastboot programe and changed its name to <recovery.img>
I turn on the tablet and it waited at fastboot menu
when i run the command <fasboot flash recovery recovery.img> and they said some thing wrong like in picture
please help me

OPO won't boot past boot logo, can't reach recovery

Hey guys.
Some issues right now....
I can't get the phone to boot. It gets stuck on boot logo. I can get it into fastboot, but not recovery.
If I try to enter recovery, it shows boot logo, then change brightness level a little bit for some reason, then nothing. Back to boot logo after screen goes black.
So it appears that the TWRP isn't installed correctly, but I've reinstalled it several times, but it never actually seems to work.
I can see the device in fastboot. Bootloader is also unlocked.
So, does anyone have a solution for this issue?

I can get it into fastboot
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This is good news as it means you should be able to just flash the recovery from fastboot.
1. Download the latest TWRP Recovery: http://twrp.me/devices/bacon (I believe this is the link, it's blocked at school )
2. type the command
fastboot flash recovery /location/of/twrp/img
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3. Wait for it to complete and then reboot the device by holding down power and volume down.
4. Then if it boots into TWRP you should be able to mount it on the computer you plug it into and then carry over a ROM and/or GApps files.

I'm in the exact same boat, happened after I tried an OTA update. I can't flash anything into the phone via ADB because my phone isn't recognised. isn't recognised in ADB. This is while I am in Fastboot. I'm on OSX.
Rorys-MBP:~ Rory$ adb devices
List of devices attached
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Click to collapse

MSM didn't work right and now stuck in fastboot loop

I can't get into MSM mode again, and there appears to be nothing else on the phone other than fastboot. I'd really appreciate any help.
https://imgur.com/RLwY0em

Have you tried reinstalling the Qualcomm driver so that you can get back into MSM?

BillGoss said:
Have you tried reinstalling the Qualcomm driver so that you can get back into MSM?
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I did try this, but my problem was the fact that every time I tried to get into edl mode, it opened fastboot instead. The fastboot options were looping around really fast, like a volume key was stuck down.
I eventually got it into edl mode, making sure I held volume up+down for 10 seconds before plugging in to the pc with MSM already started.

Glad to hear you got back into EDL mode.
I've had the quickly changing state in fastboot happen also. I connected the phone to the PC and then used fastboot reboot bootloader to reboot the phone and that stopped the looping.

BillGoss said:
Glad to hear you got back into EDL mode.
I've had the quickly changing state in fastboot happen also. I connected the phone to the PC and then used fastboot reboot bootloader to reboot the phone and that stopped the looping.
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Click to collapse
ah thanks, good to know - i've used adb commands before but I was trying to use adb commands but with the fastboot suffix "fastboot reboot edl" - - rather than "adb reboot edl". From the many variations of this, it seems there isn't a way to get from fastboot to edl directly, which is slightly annoying because it would've saved me.
Hopefully i won't get there again, but maybe the "fastboot reboot bootloader" will help if I do. Cheers!

F311D0WN said:
ah thanks, good to know - i've used adb commands before but I was trying to use adb commands but with the fastboot suffix "fastboot reboot edl" - - rather than "adb reboot edl". From the many variations of this, it seems there isn't a way to get from fastboot to edl directly, which is slightly annoying because it would've saved me.
Hopefully i won't get there again, but maybe the "fastboot reboot bootloader" will help if I do. Cheers!
Click to expand...
Click to collapse
Yes, there's no simple way to get into EDL from fastboot.
The other way that works for me from bootloader is:
- start MSM tool
- connect phone to PC
- hold Power+Vol Up+Vol Down until it connects to MSM
Easy!

[SOLVED] I need an urgent help!

Hello. I have a Poco X3 NFC and this is my problem:
I had OrangeFox recovery on it. I wanted to install another rom (from Arow OS because it wasn't work well), and one of the requirements was a decrypted device. I've flashed a file which is said it can decrypt it (and it did). After the flash, I rebooted my phone and everything was fine until I rebooted my phone again. Now the recovery bootlooped, the phone can't boot the system and adb doesn't recognize my phone in fastboot mode. It's weird that when the phone stucks at OrangeFox logo, adb recognizes my device (as in recovery mode). So I type the command "adb reboot fastboot" and it loops at the recovery again. I can go fastboot mode but fastboot doesn't recognize my phone, so I can't flash anything either. It's 4:20 a.m. in here and I can't sleep because of this.

Can u restore a backup?

Arealhooman said:
Can u restore a backup?
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Click to collapse
No. I can't reach anything in my phone. Currently I am waiting for the battery run out maybe something would change

Can you access orange fox itself?

Your battery can take weeks to run out. But try it.

Arealhooman said:
Do you have stock recovery?
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Click to collapse
No. I think it's not impossible to find in somewhere but my main problem is my PC won't recognize my phone in the fastboot mode. If it would, I can flash twrp or anything.

You need fastboot to access fastbootd right?

Arealhooman said:
You need fastboot to access fastbootd right?
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Click to collapse
I do not understand what you mean but I can go into the fastboot mode in my phone, the problem is adb doesn't recognize my phone.

Your PC sees your device though?

Arealhooman said:
Your PC sees your device though?
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Click to collapse
When I plug in my cable, I can hear that "something is plugged in" voice in my pc. When I look device manager, it shows the phone as "Android Composite ADB Interface". When it stucks in recovery, it doesn't quickly boot so I can see my device in adb:
List of devices attached
940ab842 recovery
this is showed in adb when my phone stucks at recovery, but I can give commands like "reboot".
But when I type " reboot system", it doesn't reboot it system and just tries to open recovery mode, and recovery mode doesn't open, just loops.
I type ''reboot fastboot", but it still tries to open recovery and again, it loops.
I type "reboot bootloader", at this time, it can boot to the fastboot mode, there is an orange "fastboot" word at the middle. When I go back to adb and type "adb devices", it shows nothing.

Arealhooman said:
Can you access orange fox itself?
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Click to collapse
No, I cannot. It is looped. This is the another problem prevents me to recover my phone.

Arealhooman said:
Can u restore a backup?
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Click to collapse
I think Arrow OS files still in my phone but somehow it pretends like it can't detect them. And it wants to boot directly to the recovery mode but the another problem is recovery mode stuck in loop. When I want to flash a new recovery, this time I can't connect my phone to my pc when it's in the fastboot mode. It's like a problems chain and I couldn't find any exit.

sorry, no idea

Arealhooman said:
sorry, no idea
Click to expand...
Click to collapse
Guess so, I'll go to a phone repair shop to see if they can do something about it (maybe their pc can detect my phone and they can flash another recovery), and if not then I am ****ed.

Arealhooman said:
sorry, no idea
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Click to collapse
DUDE I ****ING SOLVED IT!
FIRSTLY, **** ORANGEFOX, if anybody see this do not use orangefox.
Secondly, actually I still have the same problem. TWRP is also stucks at the loop, but there is an interesting difference that TWRP tries to loop one time and after the fail, it suddenly boots the system.
And since I can flash something with fastboot, now I think i can save my phone. Now I'm trying to install stock rom, i'll update after.

How I solved:
Installing the Google Universal USB Drivers. It has a weird method to install, and I wasn't know you can install a driver even the phone is in the fastboot mode. So thanks to that I was able to install usb drivers and finally I could get fastboot to recognize my device. The first thing I did was installing TWRP.
My problem was not solved even I installed TWRP because TWRP was doing the same thing, but one thing was different: TWRP was trying to boot recovery, it couldn't and after it was booting to the system. So I've realized how amazing TWRP is. But it wasn't solved my problem completely though, I think its problem is related to that decryption file.
Currently, I've managed to install stock rom and I haven't encountered any problem.
And I'm happy because my mother won't beat me with her slippers.