Database Users

bootloader mode. Vol-, power buttons do not respond

Hey guys,
I have Htc Legend with CM7.
Yesterday I turned off the phone when he was discharged.
Today, the device switches into bootloader mode, but volume and power buttons do not respond.
What should I do?
Please help

any suggestions?

robospot said:
any suggestions?
Click to expand...
Click to collapse
you can try sending adb or fastboot command to reboot device (to cm7) don't know it it's possible so google the different commands you can give
or you can send adb/fastboot command to go to recovery (cwm2/3)
try googeling adb and fastboot commands for android
hope this helps a bit..

Hitmax117, thanks for your answer, but I tried it.
Logo appears after a reboot and nothing happens
Maybe something else?

robospot said:
Hitmax117, thanks for your answer, but I tried it.
Logo appears after a reboot and nothing happens
Maybe something else?
Click to expand...
Click to collapse
maybe you can just take the battery out and wait for a minute...sometimes such easy things can do it...or maybe you should give it a bit more time to boot?

Zuk Z1 Soft Brick

Dear XDA friends,
i always hoped not to be one of those guys, who f****d up their phones to the point of no return. I really screwed up this time. Well, here I'am writing you about my screw up.
I unlocked, rooted, flashed and repaired all kinds of android phones in the past years, never without problems, but I could always fix it somehow. Not so much this time.
Now I'm stuck at Bootscreen with the Zuk logo. I even have problems pinging the phone via ADB.
Sorry for my noobish question guys. Any help would be much appreciated.

triby said:
Dear XDA friends,
i always hoped not to be one of those guys, who f****d up their phones to the point of no return. I really screwed up this time. Well, here I'am writing you about my screw up.
I unlocked, rooted, flashed and repaired all kinds of android phones in the past years, never without problems, but I could always fix it somehow. Not so much this time.
Now I'm stuck at Bootscreen with the Zuk logo. I even have problems pinging the phone via ADB.
Sorry for my noobish question guys. Any help would be much appreciated.
Click to expand...
Click to collapse
I got this translated from a chinese website:
For fastboot mode:
The phone turned off; keep the connection turned off the data cable to the computer, press: [volume down key] [Power Key] waiting to enter the fastboot mode.
For recovery:
Turn off the device
Press and hold Power key
When vibrates Volume UP key + Volume Down key about 10 seconds
Release all key when Android logo appear then you will see Android System Recovery
Use Volume key to select Menu
Use Power key to Confirm
Can you enter any of these 2 modes?

Life Engineer said:
I got this translated from a chinese website:
For fastboot mode:
The phone turned off; keep the connection turned off the data cable to the computer, press: [volume down key] [Power Key] waiting to enter the fastboot mode.
For recovery:
Turn off the device
Press and hold Power key
When vibrates Volume UP key + Volume Down key about 10 seconds
Release all key when Android logo appear then you will see Android System Recovery
Use Volume key to select Menu
Use Power key to Confirm
Can you enter any of these 2 modes?
Click to expand...
Click to collapse
thank you life engineer! No luck . I'll try to send it back. Thanks again for you're help. Much appreciated!

hi xda, i am facing thesame problem with my lenovo zuk z1 phone. its on a bootloop. i can enter the recovery by pressing both up and down vol. keys, i have wiped data/factory reset and wiped cache partition and rebooted but it doesnt fix.. I tried to reboot to bootloader but is stuck on fastboot mode screen. ive tried to search a solution but none have helped. The connection between phone via usb to computer only lasts like 2 secs. during boot then it disconnects again beacuse of the bootloop. Can anyone pls. help.

rusty96379 said:
hi xda, i am facing thesame problem with my lenovo zuk z1 phone. its on a bootloop. i can enter the recovery by pressing both up and down vol. keys, i have wiped data/factory reset and wiped cache partition and rebooted but it doesnt fix.. I tried to reboot to bootloader but is stuck on fastboot mode screen. ive tried to search a solution but none have helped. The connection between phone via usb to computer only lasts like 2 secs. during boot then it disconnects again beacuse of the bootloop. Can anyone pls. help.
Click to expand...
Click to collapse
How does the bootloop look like?

crian said:
How does the bootloop look like?
Click to expand...
Click to collapse
The bootloop is just showing the ''ZUK logo'' in the middle of screen and "'powered by Android logo'' below,and the phone vibrates everytime it flashes these logos. I tried QFIL but it can only detects the unit on the first boot or first flash that is 2 secs. only from the time i press the power button, and then it disconnects and not detect the unit again. Does anyone know where can i find the scatter file , MTK ROM for zuk z1, i would like to try the SP flasher tool. Or if anyone have any idea how to solve this issue on lenovo zuk z1,pls. help.tnx

Can y get to fastboot ?

im facing the same problem after i had the stupid idea to lock the bootloader again, before that i flashed the phone successfully with the cm mod recovery and cm 13.
Has anyone found a solution to this ? or do i have to send it back ?
What i did exactly :
I locked the bootloader again and just to test it i tried flashing the recovery again , ofcourse it didn't work which was what i wanted.
Afterwards i rebootet the bootloader with sudo fastboot -i 0x2b4c reboot
now im stuck in a bootloop that i cant even stop , in other words i cant turn my phone off nor can i access the recovery or fastboot
Im feeling so stupid that i locked it again .... i will try to get into recovery after my phone ran out of battery but so far it looks quite bad...does anyone know if i will get a replacement even though it was my fault ? ( i don't need to say that it was my fault ..and the bootloader is now locked again )
UPDATE::
I found a promising thread about this problem, i will report back here if i was successful.
-> forum.cyanogenmod.org/topic/121913-after-nighty-update-to-20160212-the-zuk-is-bricked-without-salvation/

CPP11 said:
UPDATE::
I found a promising thread about this problem, i will report back here if i was successful.
-> forum.cyanogenmod.org/topic/121913-after-nighty-update-to-20160212-the-zuk-is-bricked-without-salvation/
Click to expand...
Click to collapse
pressing Vol + & Vol - the connecting the USB cable entered bootloader mode. YEAH!!!!

Need some help
And after that what to do I can get it to recovery and the fastboot mod but after that what to do my phone like this for a month now

Any solution?!
did you solve it i have exactly the same problem for a month now as well (Exactly same situation) Please help
---------- Post added at 01:20 AM ---------- Previous post was at 01:08 AM ----------
Amen Ghazy said:
And after that what to do I can get it to recovery and the fastboot mod but after that what to do my phone like this for a month now
Click to expand...
Click to collapse
did you solve it i have exactly the same problem for a month now as well (Exactly same situation) Please help

Please help , same problem
I am facing same issue too from 2 days. I didnt even try to flash custom roms or play with boot loader or recovery or anything. All of a sudden my phone entered boot loop. After two three bootloops phone is entering "12 apps optimized of 230 apps" mode, completing optimizing all apps and then failing to start apps, entering boot loop again.
Effort made so far to fix -
1) Went to recovery and cleared cache - didnt work
2) Went to recovery and did factory reset - factory reset did happen but boot loop didnt stop, I realized that factory reset happened because now its saying optimizing 120 apps instead of my 230 apps during the bootloop.
3) Went to recovery, Entered fast boot mode but not able to connect to PC. Fastboot devices is not showing anything. I made sure proper driver is installed after researching on XDA.
4) Went to recovery, Tried "Install update". Didnt install anything but browsed through folder structure and realized my data is intact
It will be great if someone can help me atleast recover my data before I handover phone to service center for fixing boot loop issue.

Same problem
crian said:
How does the bootloop look like?
Click to expand...
Click to collapse
i have same problwm what to do plz help mme

Abhishekjain31291 said:
i have same problwm what to do plz help mme
Click to expand...
Click to collapse
Explain in detail

errecez1 said:
pressing Vol + & Vol - the connecting the USB cable entered bootloader mode. YEAH!!!!
Click to expand...
Click to collapse
The link is not accessible now. Can you let me know what you have done. My phone is in a boot loop now and showing only Logo and 'powered by Android' message. It keeps turning on and off again and again.

Guys when u are in fast boot mode .. pls install Twrp ... After insatlling that press power button abd vibration comes hold volum doen+volume up button at the same time ..
Then u will be getting recovery Twrp mode .. then connect it to pc and u will see internal srorage in pc...now u have to copy any rom to the phone and install it via Twrp ... Thats all

Sorry For Re-posting Here. This is Solution
Why this is happening ?
Due to Dirty Flash from Zui or from COS/CMOD but suddenly Bootloader gets locked
May be Due to Some Custom Rom which only works with Old Bootloader ( And you are on latest 2.5 Zui QPST Flash)
Reasons are many. I also did same mistake. I flashed ZUI 2.5 using QPST then unlock bootloader using official site installed twrp after wiping cache system and data , Installed Lineage 0S JAN Build then without rebooting installed Lineage Nightly build (Latest) with Gapps After rebooting Phone goes into Restart endless loop on ZUK Logo. Blink and Vibrate .. After 1hr I figured it out but its 5am So slept.
HOW TO FIX ENDLESS REBOOT ON ZUK Logo ?
-> Identity vibrate patterns (Press Power Key I count 6- 7 Vibration pattern ) After long Vibrate immediately remove finger from power key.
->Once its Done (Phone completely off)
Download QPST and Official COS QPST from this Link https://goo.gl/InWQji OR https://goo.gl/iqrnlI (I am personally Very Thankful to D tech Terminal for posting Wonderful video on Youtube https://www.youtube.com/watch?v=4Dl6JkAVpuM
<- please install all drivers and software.->) @ankurpandeyvns Thanks bro.
Main Task is here and Lots of Patience is required and You also need to be very Blazing fast to achieve this.
-Once you download and install Qpst open Qfil
-Now press Volume Up only and connect USB (Just press POWER KEY only for 1 sec It will vibrate and connect)
-Without waiting hit Download button.
-Voila It will start flashing your phone again and Hence Your phone is now Revive..
-Once Revive You can use it to again flash custom Rom or stick to stock Rom if you want.
Keep Flashing !!!
Patience is Key here. And Don't lose hope.
:good:
EDITED:
While connecting to pc and by pressing Volume key you also need to press Power key for 1 sec or 2 sec until it gets detected. Thanks addicted777 (for tip)

rajendra0072 said:
Sorry For Re-posting Here. This is Solution
Why this is happening ?
Due to Dirty Flash from Zui or from COS/CMOD but suddenly Bootloader gets locked
May be Due to Some Custom Rom which only works with Old Bootloader ( And you are on latest 2.5 Zui QPST Flash)
Reasons are many. I also did same mistake. I flashed ZUI 2.5 using QPST then unlock bootloader using official site installed twrp after wiping cache system and data , Installed Lineage 0S JAN Build then without rebooting installed Lineage Nightly build (Latest) with Gapps After rebooting Phone goes into Restart endless loop on ZUK Logo. Blink and Vibrate .. After 1hr I figured it out but its 5am So slept.
HOW TO FIX ENDLESS REBOOT ON ZUK Logo ?
-> Identity vibrate patterns (Press Power Key I count 6- 7 Vibration pattern ) After long Vibrate immediately remove finger from power key.
->Once its Done (Phone completely off)
Download QPST and Official COS QPST from this Link https://goo.gl/InWQji OR https://goo.gl/iqrnlI (I am personally Very Thankful to D tech Terminal for posting Wonderful video on Youtube https://www.youtube.com/watch?v=4Dl6JkAVpuM
<- please install all drivers and software.->) @ankurpandeyvns Thanks bro.
Main Task is here and Lots of Patience is required and You also need to be very Blazing fast to achieve this.
-Once you download and install Qpst open Qfil
-Now press Volume Up only and connect USB (Just press only for 1 sec It will vibrate and connect)
-Without waiting hit Download button.
-Voila It will start flashing your phone again and Hence Your phone is now Revive..
-Once Revive You can use it to again flash custom Rom or stick to stock Rom if you want.
Keep Flashing !!!
Patience is Key here. And Don't lose hope.
:good:
Click to expand...
Click to collapse
I'm happy that my videos were helpful. Enjoy.

keeps vibrating showing logo again and again, neither won't turn off neither turn on till for so many hour until the charge is empty....

how to stop boot loop ??????
can you provide videos how to stop boot loop ??????

OnePlus 2 stuck in reboot screen!!

So, i was following this tutorial on how-to set up TWRP and Root my OP2.
Everything seemed to be going to plan until the final step where i reboot my phone & now its stuck on the little animation screen with the red & two little white dots..
have absolutely no idea how to fix this help? anyone? PLEASE!!!!
ps. tried holding down power & volume down (nothing happens) also tried using the command prompt on windows but its 'Waiting for device' if any of that helps the cause.

eoinkearney95 said:
So, i was following this tutorial on how-to set up TWRP and Root my OP2.
Everything seemed to be going to plan until the final step where i reboot my phone & now its stuck on the little animation screen with the red & two little white dots..
have absolutely no idea how to fix this help? anyone? PLEASE!!!!
ps. tried holding down power & volume down (nothing happens) also tried using the command prompt on windows but its 'Waiting for device' if any of that helps the cause.
Click to expand...
Click to collapse
Try flashing stock rom through fastboot: http://www.androidsage.com/2016/03/12/restore-oneplus-2-full-stock-firmware/
Try Flashing stock rom through TWRP: http://downloads.oneplus.net/oneplus-2/oneplus_2_oxygenos_3.0.2/
You said that you are unable to get to recovery with the volume keys but I think you are doing it wrong. So to get to recovery power off the device by holding the power button. And then keep holding volume down and power button until you see the oneplus logo and feel the vibration. Let go of both of the buttons once the vibration finish's because if do it to early it will not go to twrp. If if does not work try multiple times

Dead oneplus2.
Hi guys and thanks to all xda community for helping us. I tried to upgrade from 2.0.2 to 3.0.2. But after the instalation my oneplus2 stucks into bootlogo(powered by android). Before i try to upgrade i forgot to enable on system oem unlocking. Now i'm not having access to recovery option,when i try to press volume- +power the op2 vibrate and flashes the screen till i stop pressing the power button,and when i try to enable oem via fastboot always get this message: <remote oem unlock is disabled>. I tried so many option but always getting this message: remote oem unlock is disabled. Please help me...

eoinkearney95 said:
So, i was following this tutorial on how-to set up TWRP and Root my OP2.
/QUOTE]
@eoinkearney95 did you installed the proper version of Supersu..?
Click to expand...
Click to collapse

Bibin John said:
eoinkearney95 said:
So, i was following this tutorial on how-to set up TWRP and Root my OP2.
/QUOTE]
@eoinkearney95 did you installed the proper version of Supersu..?
Click to expand...
Click to collapse
I dont know. i tried to instal the 3.0.2 sending the firmware to the folder downloads and then i restarted the op2 in recovery mode and the choosed the option to instal from the internal storage.
Click to expand...
Click to collapse

ciroportugues said:
Hi guys and thanks to all xda community for helping us. I tried to upgrade from 2.0.2 to 3.0.2. But after the instalation my oneplus2 stucks into bootlogo(powered by android). Before i try to upgrade i forgot to enable on system oem unlocking. Now i'm not having access to recovery option,when i try to press volume- +power the op2 vibrate and flashes the screen till i stop pressing the power button,and when i try to enable oem via fastboot always get this message: <remote oem unlock is disabled>. I tried so many option but always getting this message: remote oem unlock is disabled. Please help me...
Click to expand...
Click to collapse
Try this mega unbrick guide and try all the methods if the other ones do not work: https://forums.oneplus.net/threads/...ck-guide-for-a-hard-bricked-oneplus-2.347607/

Full brick lg k8 k350n 2016

Hello, as the title says I have a full brick, I have tried to testpoint without results, when connecting to the pc install drivers and disconnected after 3 seconds, lgup does not recognize the model, the problem was when installing a custom rom that said the web that was for my cell phone lg k8, I lost the guarantee, what can I do ?.
I've tried everything already and on google I find nothing. Thank you.

I have already researched a bit and the boot.img is the kernel is what I installed, is there no economic way to repair the kernel? a software?

tattoosmistery said:
I have already researched a bit and the boot.img is the kernel is what I installed, is there no economic way to repair the kernel? a software?
Click to expand...
Click to collapse
Well when you install/flash wrong kernel things can get very ugly, or it can refuse to flash in your case it seems like a hard bricked. Did you tried guides for unbricking from this and K10’s forum? Can you access fastboot?

I've been 10 days
Professor Woland said:
Well when you install/flash wrong kernel things can get very ugly, or it can refuse to flash in your case it seems like a hard bricked. Did you tried guides for unbricking from this and K10’s forum? Can you access fastboot?
Click to expand...
Click to collapse
I've been 10 days and all day, I read all the tutorials but all say that I enter fastboot or download mode my cell phone k8 does not react to enter those modes I have tried everything and by software is impossible at least for me , voya try to create a jib usb with 990k resistors that I saw a video on YouTube that explained how to do it if it does not work I will try to talk to a friend who has the octopus to see if it can be fixed since it has support for my model, thanks and Anything that can help me to repair it would be very grateful.

tattoosmistery said:
I've been 10 days and all day, I read all the tutorials but all say that I enter fastboot or download mode my cell phone k8 does not react to enter those modes I have tried everything and by software is impossible at least for me , voya try to create a jib usb with 990k resistors that I saw a video on YouTube that explained how to do it if it does not work I will try to talk to a friend who has the octopus to see if it can be fixed since it has support for my model, thanks and Anything that can help me to repair it would be very grateful.
Click to expand...
Click to collapse
I'm not sure what are talking about here. However can you enter fastboot, how do you mean phone doesn't react?

Professor Woland said:
I'm not sure what are talking about here. However can you enter fastboot, how do you mean phone doesn't react?
Click to expand...
Click to collapse
The mobile does not go in any way with any combination of possible keys, I do not know where the testpoint is, it does not go into the download mode and it does not even leave the logo of lg.
Sorry for my english I use the google translator.

tattoosmistery said:
The mobile does not go in any way with any combination of possible keys, I do not know where the testpoint is, it does not go into the download mode and it does not even leave the logo of lg.
Sorry for my english I use the google translator.
Click to expand...
Click to collapse
So the LG logo appears?
We'll try this :
Press the power key until it gives you vibrate or any sign that phone is going to power on, the press and hold volume down it should give you all black screen with text on bottom saying fastboot mode. If it doesn't try all this but with volume up instead of volume down. I'm not even sure how to enter fastboot since I usually do it from ADB.

Professor Woland said:
So the LG logo appears?
We'll try this :
Press the power key until it gives you vibrate or any sign that phone is going to power on, the press and hold volume down it should give you all black screen with text on bottom saying fastboot mode. If it doesn't try all this but with volume up instead of volume down. I'm not even sure how to enter fastboot since I usually do it from ADB.
Click to expand...
Click to collapse
I already tried all the key combinations and it does not react.Thanks

tattoosmistery said:
I already tried all the key combinations and it does not react.Thanks
Click to expand...
Click to collapse
Well if it's not recognized in any way when turning on then it's hard brick sorry

Is there no program to launch it fastboot directly?

Mine was bricked.
My solution was to enter in download mode, because other modes just rebooted the phone.
So follow this, and luck:
1-you need a PC turned on and the USB cable plugged already
2-quit the battery of the phone
3-now the phone is obviously off, you have to put the battery in WHILE holding volumen up button and then plug the USB still holding that button
It will enter download mode.
If step 3 doesn't work, try the same but with power button held too, with volume up.
Follow this then:
https://www.mylgphones.com/how-to-unbrick-lg-k8-k350-phone-with-lg-up.html

carwave said:
Mine was bricked.
My solution was to enter in download mode, because other modes just rebooted the phone.
So follow this, and luck:
1-you need a PC turned on and the USB cable plugged already
2-quit the battery of the phone
3-now the phone is obviously off, you have to put the battery in WHILE holding volumen up button and then plug the USB still holding that button
It will enter download mode.
If step 3 doesn't work, try the same but with power button held too, with volume up.
Follow this then:
https://www.mylgphones.com/how-to-unbrick-lg-k8-k350-phone-with-lg-up.html
Click to expand...
Click to collapse
It does not Word.

OnePlus 6T - Stuck in "unlocked boot loader" screen - cannot go to fastboot mode

So I was trying to flash a rom on this phone for the first time, I failed miserably...
Was following instructions from this thread: [ROM][OFFICIAL] Omnirom Q for OnePlus6T [Every Sunday]
After flashing the omnirom.zip I immediately tried to reboot in recovery and ended-up in a boot loop (see attached image).
I tried multiple times to go back to fastboot mode with vol-up-power combination, it did'nt worked. Always boot back to that screen.
I tried all imaginable combinations of buttons and timing but always ened-up on that screen... exept just one time where I finally ended-up in fast boot.
I dont know how I did it!
So then I pushed TWRP, I saw that the ROM's files were in both partitions, wiped the data and rebooted and returned to that same "unlocked boot loader" screen.
I've been stuck here for 3 days now, I want to go back to fastboot mode so I can push TWRP and restore my nandroid backup.
Anybody knows how I can do this?

Try holding power, volume up and down all at the same time without any cable plugged in to shut it down then while holding the volume up button plug the USB cable that's connected to your computer in. It should boot to bootloader screen.

DrAgNbOi said:
Try holding power, volume up and down all at the same time without any cable plugged in to shut it down then while holding the volume up button plug the USB cable that's connected to your computer in. It should boot to bootloader screen.
Click to expand...
Click to collapse
Thanks for your reply.
Thank you so much. I had'nt tried this specific combination. It worked.

ebab said:
Thanks for your reply.
Thank you so much. I had'nt tried this specific combination. It worked.
Click to expand...
Click to collapse
No worries. Glad it works as I was in the same situation before myself.

Well I'm grateful that I was able to get the device shut down without a hot dead battery. I wasn't able to get it into fastboot by the volume up and plug in. I'm thankful it's off. Do you have any other ideas Im not concerned about data at all. I just would like to get my device back up and running..
Please help me out! Thanks