Related
Hey, I'm pretty new to rooting, but I don't see where I did a mistake here or why this doesn't work.
- So I installed the toolkit, including the adb drivers (an error occured, but beneath it it said that this error means the drivers are installed anyway)
- then I connect my nexus 7 (usb debugging enabled). a long digit/letter code shows next to the device, which I take is the serial code.
- Then I go into backup, nandroid backup, as I want to backup my whole system before rooting. I chose NO in the options as it's the stock ROM.
Then it gets stuck here:
Code:
Booting into fastboot mode
downloading boot.img...
FAILED (remote bootloader is locked.)
Finished. total time: 0.023s
Your tablet will now boot into Android
Waiting for adb Mode
Meanwhile my tablet shows Fastboot mode in red at the top; it shows serial number, mw version, bootloader version, baseband version (N\A), serial number, signed (not defined yet), product name; and "Lock state - locked" in red at the bottom.
This is about all the information there is.
[EDIT]: Ok I found the option to unlock the bootloader in the toolkits... However, this resulted in me losing all my data on the phone. Which means, that in order to save my data I need to go through a process which deletes all my data?? Or maybe I shouldn't have chosen nandroid... Well, anyway. I'm thankful someone programmed this, but if you care for another user's opinion: not enough detailed documentation, at least not in the right order.
Hi guys,
a week ago my ZUK Z1 started to bootloop without any evident reason.
I found it in this state picking it up from my pocket, so I guessed it was due to some random reboot that occasionally happened to it.
So, stating that:
- I'm with original stock CyanogenOS,
- I never rooted, or even accessed to the recovery menu prior to this event,
- I'm perfectly able now to communicate and send commands to device via adb or in fastboot mode,
problem is that I did NOT enable "USB debugging" and I did NOT OEM unlock when I had the chance to reach Developer options menu through the Android GUI (now I'm blocked by bootloop), resulting in an obvious "no unlocked device" error message each time I try to flash or write system partitions.
The output from "fastboot oem get-info" confirms this status.
I'm operating from a shell with adiministrator's grant in Windows 8.
No luck with "fastboot oem unlock", "fastboot flashing unlock_critical" or "adb root".
I used also "-i 0x2b4c" (vendor code) option in my commands.
Then, my question for you:
is there still a way to unlock bootloader in order to recover with CyanogenOS stock image, in this condition?
I saw there's a "debuggable" image on Cyanogen site, but I've no hint on how to use it and if it could help me.
Maybe ZUK has to provide to me an unlock key: I read on this forum that OnePlus and Huawei have similar option.
Thanks a lot in advance for any hint and suggestion you can give to me.
---------- Post added at 05:43 PM ---------- Previous post was at 05:43 PM ----------
[/COLOR]
dalviking said:
Hi guys,
a week ago my ZUK Z1 started to bootloop without any evident reason.
I found it in this state picking it up from my pocket, so I guessed it was due to some random reboot that occasionally happened to it.
So, stating that:
- I'm with original stock CyanogenOS,
- I never rooted, or even accessed to the recovery menu prior to this event,
- I'm perfectly able now to communicate and send commands to device via adb or in fastboot mode,
problem is that I did NOT enable "USB debugging" and I did NOT OEM unlock when I had the chance to reach Developer options menu through the Android GUI (now I'm blocked by bootloop), resulting in an obvious "no unlocked device" error message each time I try to flash or write system partitions.
The output from "fastboot oem get-info" confirms this status.
I'm operating from a shell with adiministrator's grant in Windows 8.
No luck with "fastboot oem unlock", "fastboot flashing unlock_critical" or "adb root".
I used also "-i 0x2b4c" (vendor code) option in my commands.
Then, my question for you:
is there still a way to unlock bootloader in order to recover with CyanogenOS stock image, in this condition?
I saw there's a "debuggable" image on Cyanogen site, but I've no hint on how to use it and if it could help me.
Maybe ZUK has to provide to me an unlock key: I read on this forum that OnePlus and Huawei have similar option.
Thanks a lot in advance for any hint and suggestion you can give to me.
Click to expand...
Click to collapse
Sideload the official stock rom with zuk z1 tool. That s how i managed to un-brick my zuk. Download the stock rom , cm-12.1-YOG4PAS3OH-ham-signed.zip from this page https://cyngn.com/support. Use the toolkit provided here : http://forum.xda-developers.com/zuk-...alpha-t3235964 to sideload the rom. Wait until the phone restarts and thats it. You must also install adb and fastboot and have adb driver installed.I used the shenqi adb composite driver, but i guess the universal adb driver can work too. I had the same problem. Stuck in bootloop with USB debugging not enabled and bootloader locked.
Or you can try to fastboot the stock rom with the command provided in this useful tool.
Extentho said:
---------- Post added at 05:43 PM ---------- Previous post was at 05:43 PM ----------
[/COLOR]
Sideload the official stock rom with zuk z1 tool. That s how i managed to un-brick my zuk. Download the stock rom , cm-12.1-YOG4PAS3OH-ham-signed.zip from this page https://cyngn.com/support. Use the toolkit provided here : http://forum.xda-developers.com/zuk-...alpha-t3235964 to sideload the rom. Wait until the phone restarts and thats it. You must also install adb and fastboot and have adb driver installed.I used the shenqi adb composite driver, but i guess the universal adb driver can work too. I had the same problem. Stuck in bootloop with USB debugging not enabled and bootloader locked.
Or you can try to fastboot the stock rom with the command provided in this useful tool.
Click to expand...
Click to collapse
Thanks a lot Extentho for your feedback.
I've already tried your fair suggestion: unfortunately, I'm stuck at the end of sideloading the signed .zip.
In fact, I see on screen logs that it's applying the update "unconditionally" (that sounds good), but nevertheless, when finished it returns "xfer: 1.00x" on PC shell and in recovery menu, on device.
Now, either if I reboot or power down and boot it again, the result is the same: still bootloop-ing.
Of course, at any other attempts leveraging on administrative privilege, it says that "device is locked", including those done through the shell tool.
Some excerpts from my last launched commands:
c:\_APP\CM>adb devices
List of devices attached
51f8941d sideload
c:\_APP\CM>adb shell
error: closed
c:\_APP\CM>adb kill-server
c:\_APP\CM>adb root
error: closed
c:\_APP\CM>adb kill-server
c:\_APP\CM>adb usb
* daemon not running. starting it now on port 5037 *
* daemon started successfully *
error: closed
c:\_APP\CM>adb kill-server
c:\_APP\CM>adb devices
* daemon not running. starting it now on port 5037 *
* daemon started successfully *
List of devices attached
51f8941d sideload
c:\_APP\CM>adb sideload cm-12.1-YOG4PAS3OH-ham-signed.zip
Total xfer: 1.00x
You must have the phone in sideload mode. There is an option to sideload in recovery menu.
Then use the command to sideload from the toolkit. The stock rom must pe renamed sideload and placed on desktop.
If the phone communicates in any way with pc, there is still hope. When you start the sideload process from pc, the phone should show an animation showing the flashing process. Post some pictures from where you are stuck, so i can make an idea about what is going on
my zuk z1 stuck to bootloop,
and android debugging is disabled.
phone can not detecting in fastboot mode.
please help.
Extentho said:
You must have the phone in sideload mode. There is an option to sideload in recovery menu.
Then use the command to sideload from the toolkit. The stock rom must pe renamed sideload and placed on desktop.
If the phone communicates in any way with pc, there is still hope. When you start the sideload process from pc, the phone should show an animation showing the flashing process. Post some pictures from where you are stuck, so i can make an idea about what is going on
Click to expand...
Click to collapse
I've tried also with the toolkit, but it's heavy bugged (also in 5.4 version) and, after all, it gets the exact same problem like me (not surprising, it launches my same commands ).
There's no useful image or snapshot I can share, because I see the animated green android logo moving its antennas on my device, while logs below saying that it's verifying package and then it's unconditionally overwriting system partition.
It seems all so normal and plain.
At the end of the process, no "installation complete" message, but simply I get back to recovery menu (where I started from).
In other attempts, I also wiped cache and user data, prior to rebooting, just to test if it was going to change something, but no luck.
The phone reboots, the "Cyanogen" logo starts to glow for 7/8 times and then... bzzzz, short vibration and all over again (i.e. bootloop).
I tried with an older official signed .zip from Cyanogen OS (cm-12.1-YOG4PAS3AJ-ham-signed, instead of newer cm-12.1-YOG4PAS3OH-ham-signed), but even worst, it fails at "verify package" step, aborting procedure.
MD5 signatures triple-checked each time versus source.
I saw some threads where it seems possible to change the bit, on system image, controlling developer option, to manually post-enable unlocking, but it's suitable only for Nexus or OnePlus One. No instructions for ZUK Z1.
Or maybe do I need a "donor" sharing a stock .zip with this option yet enabled?
Bootloop would be still there, but I possibly could enable to "flash", "boot" and "shell" vs the device, giving me much more options to try.
One last doubt anyway. If I press "Volume Down" + "Power" button at boot, I get into a menu like this:
http: // postimg.org/image/s5badiefh/ (remove extra spaces).
Viewing other examples posted on forums, I noted that at least the "Factory reset" is missing.
Could it be an hint for anything useful?
dalviking said:
I've tried also with the toolkit, but it's heavy bugged (also in 5.4 version) and, after all, it gets the exact same problem like me (not surprising, it launches my same commands ).
There's no useful image or snapshot I can share, because I see the animated green android logo moving its antennas on my device, while logs below saying that it's verifying package and then it's unconditionally overwriting system partition.
It seems all so normal and plain.
At the end of the process, no "installation complete" message, but simply I get back to recovery menu (where I started from).
In other attempts, I also wiped cache and user data, prior to rebooting, just to test if it was going to change something, but no luck.
The phone reboots, the "Cyanogen" logo starts to glow for 7/8 times and then... bzzzz, short vibration and all over again (i.e. bootloop).
I tried with an older official signed .zip from Cyanogen OS (cm-12.1-YOG4PAS3AJ-ham-signed, instead of newer cm-12.1-YOG4PAS3OH-ham-signed), but even worst, it fails at "verify package" step, aborting procedure.
MD5 signatures triple-checked each time versus source.
I saw some threads where it seems possible to change the bit, on system image, controlling developer option, to manually post-enable unlocking, but it's suitable only for Nexus or OnePlus One. No instructions for ZUK Z1.
Or maybe do I need a "donor" sharing a stock .zip with this option yet enabled?
Bootloop would be still there, but I possibly could enable to "flash", "boot" and "shell" vs the device, giving me much more options to try.
One last doubt anyway. If I press "Volume Down" + "Power" button at boot, I get into a menu like this:
http: // postimg.org/image/s5badiefh/ (remove extra spaces).
Viewing other examples posted on forums, I noted that at least the "Factory reset" is missing.
Could it be an hint for anything useful?
Click to expand...
Click to collapse
For me, this method worked exactly as described, booting into stock rom correctly.
now, if you mentioned it in the picture, there is another option. so, i ve noticed too this menu. There is an app called QPST wich can help you. Follow this thread: http://forum.xda-developers.com/zuk-z1/help/bricked-zuk-z1-t3277257 .
So when you enter in QFIL, connect the phone to computer and boot with volume down+ power into this menu from your picture. The Qfil app should detect some ports. You must choose the 9008 one, from what i have read.
Anyway, for me this method, didn t work because the pc couldn t detect the right port, only the zuk tookit did it for me.
You read the thread i suggested, and try that method, it may work for you.
Extentho said:
For me, this method worked exactly as described, booting into stock rom correctly.
now, if you mentioned it in the picture, there is another option. so, i ve noticed too this menu. There is an app called QPST wich can help you. Follow this thread: http://forum.xda-developers.com/zuk-z1/help/bricked-zuk-z1-t3277257 .
So when you enter in QFIL, connect the phone to computer and boot with volume down+ power into this menu from your picture. The Qfil app should detect some ports. You must choose the 9008 one, from what i have read.
Anyway, for me this method, didn t work because the pc couldn t detect the right port, only the zuk tookit did it for me.
You read the thread i suggested, and try that method, it may work for you.
Click to expand...
Click to collapse
Thanks again Extentho.
I saw QPST trick, but it's not catching right port and/or not getting right permission to stop phone from re-booting.
I think that adb/toolkit method should work also for me. I made attempts with other official ROMs: I noticed that for the older ones, the result is a bit different. They get stuck in a "black screen + notify led lighted in blue" state, rather than bootlooping.
Maybe erasing system partitions is needed, but I'm very reluctant to such dangerous way, without expertised advice.
Weirdest thing is that I did anything to get this situation, I just found my device in this mess.
Of course ZUK official support is well silent at my requests.
dalviking said:
Thanks again Extentho.
I saw QPST trick, but it's not catching right port and/or not getting right permission to stop phone from re-booting.
I think that adb/toolkit method should work also for me. I made attempts with other official ROMs: I noticed that for the older ones, the result is a bit different. They get stuck in a "black screen + notify led lighted in blue" state, rather than bootlooping.
Maybe erasing system partitions is needed, but I'm very reluctant to such dangerous way, without expertised advice.
Weirdest thing is that I did anything to get this situation, I just found my device in this mess.
Of course ZUK official support is well silent at my requests.
Click to expand...
Click to collapse
Try to post some pics about the troubles you encounter. If we receive a solution, this may be helpful for all of us in the future. Now, exactly, what can you acces on phone(recovery, fastboot, )?
Also, check varios threads from other phones with the same problems(one plus one, lg , htc) ,etc. Find a solved situation like yours, and we may adapt that solution to you
Hi guys,
Just to close this topic.
I was finally able to install the ZUI ROM through the QFIL program.
It's a little bit tricky, due to the fact that it is strongly suggested:
- to use a Windows 7 machine started without Signature Enforcement enabled;
- to start QFIL (admin mode) and be prepared with all needed files loaded in its GUI;
- to power off the phone, then, while pressing volume up button, inserting the USB cable, attached (better if) on a 2.0 port to PC;
- to be fast pressing "Download" button on QFIL program.
After that, I unlocked the bootloader and performed a lot of alternative recovery process.
So, I installed on the device:
- ZUI ROM
- Cyanogen OS convert from ZUI ROM
- Cyanogen OS last updated ROM
- CyanogenMod 12.1 last nightly ROM
- CyanogenMod 13.0 last nightly ROM
and the winner is...
...
...
...
... none of the above.
Each time the very same behaviour: bootloop. So, my last conclusion is: hardware failure (I guess wi-fi module).
I give up.
But for anyone searching a safe way to unlock a bootloader without accessing to developer options: the QFIL method works like a charm (once installed properly).
Thanks for support.
Messed my zuk z1
I tried to flash stock room in my zuk z1 , I downloaded Qualcomm file for the ROM and installed the required in my laptop,I wiped all data in my phone using TWRP .though my power button is not working I used tool kit to reboot my phone by connecting into fast boot mode,here comes the prob by mistake I entered the wrong command which locks my bootloader .I don't know what to do...help me.....
I got an update notification. And clicked to update.
When restarted the phone, the phone went to die. I could not start my phone.
I tried these:
1) Kept my fingers on VOL Down and POWER buttons for 2 minutes (even more), but NO USE.
2) Tried to open screws but my screwdrivers could not fit for them.
I bought it 3 months back, but in Flipkat and no service center near me. Any solution for it?
What update did you flash, and what OS were you on?
What device did you have, and was it charged up when you accepted the update?
echo92 said:
What update did you flash, and what OS were you on?
What device did you have, and was it charged up when you accepted the update?
Click to expand...
Click to collapse
* I got June update I guess.
* My device is moto g4 plus 1643 model India variant.
* When I connected charger, LED light blinks that was near Fingerprint zone.
* Tried device manager software, it helped nothing.
* Tried to put my fingers on POWER and VOLUME DOWN buttons, but no use.
Really disappointed as it was a gift from my brother.
TrueUniue said:
* I got June update I guess.
* My device is moto g4 plus 1643 model India variant.
* When I connected charger, LED light blinks that was near Fingerprint zone.
* Tried device manager software, it helped nothing.
* Tried to put my fingers on POWER and VOLUME DOWN buttons, but no use.
Really disappointed as it was a gift from my brother.
Click to expand...
Click to collapse
Just to clarify - you installed the update and then rebooted or just accepted the notification to begin the update (and then rebooted, after which your device failed to boot)?
Did you have TWRP/root and were you on the stock ROM prior to flashing (or a custom stock ROM)?
echo92 said:
Just to clarify - you installed the update and then rebooted or just accepted the notification to begin the update (and then rebooted, after which your device failed to boot)?
Did you have TWRP/root and were you on the stock ROM prior to flashing (or a custom stock ROM)?
Click to expand...
Click to collapse
The update was downloaded, when installing it went blank and never started up.
* I have TWRP custom ROM before it.
TrueUniue said:
The update was downloaded, when installing it went blank and never started up.
* I have TWRP custom ROM before it.
Click to expand...
Click to collapse
Did you flash a stock recovery before attempting to update? Having TWRP might be causing the hang; try these suggestions from abhi212b https://forum.xda-developers.com/mo...date-build-t3584982/post72114657#post72114657
Can I ask which custom ROM you were on? You won't be able to flash stock OTA updates with TWRP/customised stock ROM.
echo92 said:
Did you flash a stock recovery before attempting to update? Having TWRP might be causing the hang; try these suggestions from abhi212b https://forum.xda-developers.com/mo...date-build-t3584982/post72114657#post72114657
Can I ask which custom ROM you were on? You won't be able to flash stock OTA updates with TWRP/customised stock ROM.
Click to expand...
Click to collapse
My phone is in blank screen. NO start up. No fastboot or recovery mode available. Only light blinks when charger is connected. Then how can I do your suggestions? You didn't understand my problem.
TrueUniue said:
My phone is in blank screen. NO start up. No fastboot or recovery mode available. Only light blinks when charger is connected. Then how can I do your suggestions? You didn't understand my problem.
Click to expand...
Click to collapse
My apologies - I looked through your post history and was wondering if the TWRP/rooting performed previously might have prevented your device from booting.
What is your device detected as when you plug it into your computer, is it Moto G4 or is it Qualcomm HS-USB- 9008 (or similar)?
echo92 said:
My apologies - I looked through your post history and was wondering if the TWRP/rooting performed previously might have prevented your device from booting.
What is your device detected as when you plug it into your computer, is it Moto G4 or is it Qualcomm HS-USB- 9008 (or similar)?
Click to expand...
Click to collapse
When I connected to laptop, it took detected and installed port Qualcomm HS-USB- 9008. But I didn't see special drive detecting beside my other drivers.
TrueUniue said:
When I connected to laptop, it took detected and installed port Qualcomm HS-USB- 9008. But I didn't see special drive detecting beside my other drivers.
Click to expand...
Click to collapse
Right, 2 things to try:
1) Try holding the power button down for 2-3 minutes, this may force a hard restart which might break your device out of whatever state it's in.
2)If 1 doesn't work, you may wish to look into trying a blank-flash (here: https://forum.xda-developers.com/moto-g4-plus/help/solved-unbrick-hard-bricked-dead-t3585016 or here: https://forum.xda-developers.com/showpost.php?p=71405834&postcount=23 ) Depending on what happened with the update, you might be lucky. You may wish to have a look at these blank-flashes too, heed the warning: https://forum.xda-developers.com/showpost.php?p=73151763&postcount=6
3)If 1 and 2 don't work, then unfortunately you'll have to locate a repair centre (or try to find a Motorola service centre) that you could send the device to, or ask Flipkart for assistance. Alternatively, save up for another device. Currently, we don't have another option, though it appears that a member is trying to patch a blankflash for the new update: https://forum.xda-developers.com/showpost.php?p=73152979&postcount=21
echo92 said:
Right, 2 things to try:
1) Try holding the power button down for 2-3 minutes, this may force a hard restart which might break your device out of whatever state it's in.
2)If 1 doesn't work, you may wish to look into trying a blank-flash (here: https://forum.xda-developers.com/moto-g4-plus/help/solved-unbrick-hard-bricked-dead-t3585016 or here: https://forum.xda-developers.com/showpost.php?p=71405834&postcount=23 ) Depending on what happened with the update, you might be lucky. You may wish to have a look at these blank-flashes too, heed the warning: https://forum.xda-developers.com/showpost.php?p=73151763&postcount=6
3)If 1 and 2 don't work, then unfortunately you'll have to locate a repair centre (or try to find a Motorola service centre) that you could send the device to, or ask Flipkart for assistance. Alternatively, save up for another device. Currently, we don't have another option, though it appears that a member is trying to patch a blankflash for the new update: https://forum.xda-developers.com/showpost.php?p=73152979&postcount=21
Click to expand...
Click to collapse
I got this when I clicked blankflash:
C:\Users\*****\Downloads\Compressed\blankflash1\blankflash>.\qboot.
exe blank-flash
Motorola qboot utility version 3.40
[ 0.000] Opening device: \\.\COM3
[ 0.002] Detecting device
[ 4.009] ERROR: sahara_greet_device()->change_mode()->do_hello()->IO error
[ 4.009] Check qboot_log.txt for more details
[ 4.010] Total time: 4.010s
FAILED: qb_flash_singleimage()->sahara_greet_device()->change_mode()->do_hello()
->IO error
C:\Users\*****\Downloads\Compressed\blankflash1\blankflash>pause
Press any key to continue . . .
I think, if any one can find new blankflash, I can fix my phone. I think those blankflases are old. I'm on April update, and failed when I tried for June update.
Hello Friends,
I got the bootloop problem on my nexus 6p from the last few days.
I Google it to solve the problem with various methods but I am unable to solve the problem. I tried command fastboot flashing unlock but I am getting remote: device is locked. I am unable to unlock usb debugging and oem through fastboot command prompt. When I write command fastboot devices then I get the serial number and when I write the command adb devices then I failed to get the device. I am also unable to get recovery mode.
here is some details of my nexus 6p
BL: angler-03.68
baseband: angler-03.81
product/variant: ANGLER-ROW-VN1
Serial Number: XXXXXXXXXXX
CPU: MSM8994 0x20001
eMMC: 64GB Samsung
DRAM: 3072MB SAMSUNG LPDDR4
Console: ttyHSL0,115200,n8
Battery ok
Device is LOCKED.
Qfuse status: ENABLED.
off-mode-charge: ENABLED.
Download Mode: DISABLED.
Connect USB Data Cable
can you guys help me to overcome this problem and install the new android os.
Looking for your response.
Thank You guys.
sumitpetal said:
Hello Friends,
I got the bootloop problem on my nexus 6p from the last few days.
I Google it to solve the problem with various methods but I am unable to solve the problem. I tried command fastboot flashing unlock but I am getting remote: device is locked. I am unable to unlock usb debugging and oem through fastboot command prompt. When I write command fastboot devices then I get the serial number and when I write the command adb devices then I failed to get the device. I am also unable to get recovery mode.
here is some details of my nexus 6p
BL: angler-03.68
baseband: angler-03.81
product/variant: ANGLER-ROW-VN1
Serial Number: CVH7N15C14001695
CPU: MSM8994 0x20001
eMMC: 64GB Samsung
DRAM: 3072MB SAMSUNG LPDDR4
Console: ttyHSL0,115200,n8
Battery ok
Device is LOCKED.
Qfuse status: ENABLED.
off-mode-charge: ENABLED.
Download Mode: DISABLED.
Connect USB Data Cable
can you guys help me to overcome this problem and install the new android os.
Looking for your response.
Thank You guys.
Click to expand...
Click to collapse
Try the following thread then post after your attempts in there as well:
https://forum.xda-developers.com/showthread.php?t=3640279
Sent from my Nexus 5X using Tapatalk
sumitpetal said:
... can you guys help me to overcome this problem and install the new android os. Looking for your response.
Click to expand...
Click to collapse
Unlocking your device is failing because you haven't ever enabled Allow OEM Unlock or USB Debugging from within the OS. The only way you will be able to unlock the phone is to get it to boot into the OS first, and going into Developer Options to toggle these two settings on. You may be able to use the method linked above to briefly get your phone booted into the OS long enough so you can do this. If you are lucky enough to accomplish this, then you can disable the big cores using a custom kernel.
SlimSnoopOS said:
Try the following thread then post after your attempts in there as well:
https://forum.xda-developers.com/showthread.php?t=3640279
Sent from my Nexus 5X using Tapatalk
Click to expand...
Click to collapse
Hello SlimSnoopOS,
Thanks for giving the link. I checked it but in that links it showing the method to enable OEM and I am totally failed to boot into the OS. I got only Google Logo and it loop again and again. I tried fastboot flashing unlock but It showing me Remote: Device is locked.
Is there any way to installed the New OS or downgrade or repair current version with unlocked OEM Devices?
Looking for your response.
Thank you.
v12xke said:
Unlocking your device is failing because you haven't ever enabled Allow OEM Unlock or USB Debugging from within the OS. The only way you will be able to unlock the phone is to get it to boot into the OS first, and going into Developer Options to toggle these two settings on. You may be able to use the method linked above to briefly get your phone booted into the OS long enough so you can do this. If you are lucky enough to accomplish this, then you can disable the big cores using a custom kernel.
Click to expand...
Click to collapse
Hello v12xke,
Thank you for your response.
I am totally failed to go into the os. I am getting only Google Logo and its looping. so I am unable to go in to setting and enable OEM unlocking option in developer option.
do you have any other option to install, repair current version with Unlocked OEM devices ?
Thank You so much.
sumitpetal said:
Hello SlimSnoopOS,
Thanks for giving the link. I checked it but in that links it showing the method to enable OEM and I am totally failed to boot into the OS. I got only Google Logo and it loop again and again. I tried fastboot flashing unlock but It showing me Remote: Device is locked.
Is there any way to installed the New OS or downgrade or repair current version with unlocked OEM Devices?
Looking for your response.
Thank you.
Click to expand...
Click to collapse
You have to try either of those two methods (extreme heat or extreme cold) to see if you can get it to boot even for a couple minutes. Neither method is quick nor do you have time to mess around once the phone finally boots. You can only upgrade with a locked bootloader. So you are stuck unless you are under warranty or can try the fix.
Sent from my Nexus 5X using Tapatalk
SlimSnoopOS said:
You have to try either of those two methods (extreme heat or extreme cold) to see if you can get it to boot even for a couple minutes. Neither method is quick nor do you have time to mess around once the phone finally boots. You can only upgrade with a locked bootloader. So you are stuck unless you are under warranty or can try the fix.
Sent from my Nexus 5X using Tapatalk
Click to expand...
Click to collapse
Hello SlimSnoopOS,
I found a video on youtube which fix the bootloop by opening the whole phone. can It possible ?
could you please check the video -> https://www.youtube.com/watch?v=-A-FQp1DP7A
can It be possible ?
Thank You.
sumitpetal said:
Hello SlimSnoopOS,
I found a video on youtube which fix the bootloop by opening the whole phone. can It possible ?
could you please check the video -> https://www.youtube.com/watch?v=-A-FQp1DP7A
can It be possible ?
Thank You.
Click to expand...
Click to collapse
I'm at work so I can't watch your video. I don't recommend opening up a device if you aren't technically sound enough to follow whatever the instructions are. So, try at your own risk and loss of warranty.
Sent from my Nexus 5X using Tapatalk
Hey man, here is what I did though my device was rooted/unlocked/custom kernal (EX)
- Put the phone on charge
- Switch on, let it bootloop, eventually it booted [takes a day at times]
- Backup if you need to (eg. ADB pull).
- I have EX manager so I enabled power save mode which disables the 4 big cores. As long as the phone doesn't reboot or die no bootloops.
boeder9 said:
Hey man, here is what I did though my device was rooted/unlocked/custom kernal (EX)
- Put the phone on charge
- Switch on, let it bootloop, eventually it booted [takes a day at times]
- Backup if you need to (eg. ADB pull).
- I have EX manager so I enabled power save mode which disables the 4 big cores. As long as the phone doesn't reboot or die no bootloops.
Click to expand...
Click to collapse
Hello boeder9,
Thanks for reply.
my device is not rooted and unlocked but let me try it, hope it works...!!
Thank you
sumitpetal said:
Hello v12xke, Thank you for your response.
I am totally failed to go into the os. I am getting only Google Logo and its looping. so I am unable to go in to setting and enable OEM unlocking option in developer option.
do you have any other option to install, repair current version with Unlocked OEM devices ? Thank You so much.
Click to expand...
Click to collapse
You will need to get into the OS somehow to toggle the dev settings. Otherwise you will not be able to unlock the bootloader. You will not be able to apply the fix (flash custom kernel) with a locked bootloader, and there is no way to unlock it unless your phone can boot. There are a few "tricks" to use with the heatgun/hairdryer that force the phone into limp mode so it will boot into the OS. Others have claimed that once booted, they have enabled "power savings" under settings>>battery and that prevents the phone from going back into the looping. Keep trying, and good luck with the hairdryer!
v12xke said:
You will need to get into the OS somehow to toggle the dev settings. Otherwise you will not be able to unlock the bootloader. You will not be able to apply the fix (flash custom kernel) with a locked bootloader, and there is no way to unlock it unless your phone can boot. There are a few "tricks" to use with the heatgun/hairdryer that force the phone into limp mode so it will boot into the OS. Others have claimed that once booted, they have enabled "power savings" under settings>>battery and that prevents the phone from going back into the looping. Keep trying, and good luck with the hairdryer!
Click to expand...
Click to collapse
Hi v12xke,
Thanks for the details, Let me try with hairdryer. Hope it works...!!!
Thank You so much once again.
SlimSnoopOS said:
Try the following thread then post after your attempts in there as well:
https://forum.xda-developers.com/showthread.php?t=3640279
Sent from my Nexus 5X using Tapatalk
Click to expand...
Click to collapse
Same problem... , i tried several flashes ... nothing!
but seems to me it's a fault on the software ... a bug or a glitch, because it came at the end of february! or a malware of some kind!
moshu_fc said:
Same problem... , i tried several flashes ... nothing!
but seems to me it's a fault on the software ... a bug or a glitch, because it came at the end of february! or a malware of some kind!
Click to expand...
Click to collapse
If it's a software issue best thing to do is completely wipe your phone. Easiest way is to install Twrp and wipe all incuding internal then flashing fresh stock image. I'm sure there is fastboot commands also to erase (or some other way if can't do neither.) This will remove every last thing from your phone so make sure if you are able to back up pics,docs,downloads,music etc. Last thing though don't think it's causes issues make sure your flashing the right version of February stock image Google finally labled them. Or March if it's out.
sumitpetal said:
Hello Friends,
I got the bootloop problem on my nexus 6p from the last few days.
I Google it to solve the problem with various methods but I am unable to solve the problem. I tried command fastboot flashing unlock but I am getting remote: device is locked. I am unable to unlock usb debugging and oem through fastboot command prompt. When I write command fastboot devices then I get the serial number and when I write the command adb devices then I failed to get the device. I am also unable to get recovery mode.
here is some details of my nexus 6p
BL: angler-03.68
baseband: angler-03.81
product/variant: ANGLER-ROW-VN1
Serial Number: XXXXXXXXXXX
CPU: MSM8994 0x20001
eMMC: 64GB Samsung
DRAM: 3072MB SAMSUNG LPDDR4
Console: ttyHSL0,115200,n8
Battery ok
Device is LOCKED.
Qfuse status: ENABLED.
off-mode-charge: ENABLED.
Download Mode: DISABLED.
Connect USB Data Cable
can you guys help me to overcome this problem and install the new android os.
Looking for your response.
Thank You guys.
Click to expand...
Click to collapse
Hello, you describe a cluster A57 failure, to fix it you need to boot into your phone enough time to enable USB debugging and OEM unlock then flash a modified kernel or a modified ramdisk
See this thread : https://forum.xda-developers.com/nexus-6p/general/guide-fix-nexus-6p-bootloop-death-blod-t3640279/
To boot into your device you need to overheat the CPU so the software will shutdown the faulty A57 clusters to cool down the device as soon as it boot up enable USB debugging and OEM unlock before the A57 clusters goes online (because it will shutdown your device) once you succeed enable USB debugging and OEM unlock flash modified files and enjoy your working (but slower) N6P
I had that problem too, but wasn't able to live thinking that my phone was working with CPU issues, so I bought an other Nexus 6P from a guy on the internet, he was selling it because the screen was broken, I got it for real cheap ! I swapped the screen of my BLOD N6P to the one from the guy, it cost me 60$ to completely fix my phone (way less than buying a new phone or buying a new microprocessor)
Exodusche said:
If it's a software issue best thing to do is completely wipe your phone. Easiest way is to install Twrp and wipe all incuding internal then flashing fresh stock image. I'm sure there is fastboot commands also to erase (or some other way if can't do neither.) This will remove every last thing from your phone so make sure if you are able to back up pics,docs,downloads,music etc. Last thing though don't think it's causes issues make sure your flashing the right version of February stock image Google finally labled them. Or March if it's out.
Click to expand...
Click to collapse
Hy!
Already done that... Today It comes back from service, they told me they replaced the PCB ... so... it could be a hardware problem or a malware of some kind that ruins the memory... that's what i think about those problem, but i suspect google has something to do whit it!
So... i'll get back to you when I will have IT! :fingers-crossed:
bootloop can't unlock device
I have had exactly the same problem. I tried in vain using heat or cold to get the thing to boot, but independently found the method of leaving it on charge for a few days, occasionally it will get into the O/S.
So while in the O/S I enabled developer options and adb too (the second time) and unlocked the bootloader.
However it still claims to be "device is LOCKED" in recovery mode. This is really weird. I have also factory reset the phone but that hasn't helped.
Luckily I have read the other posts about power saving mode so I'll try that next, it will save having to flash a non-stock OS.
When people ask why unlocking the bootloader is important to me, this specific situation comes to mind. If you had unlocked your device you could have fixed this easily, mind you you would lose 4 cores.
Nexus 6P Huawei H1511 Bootlooping fix with OEM Unlock off
sumitpetal said:
Hello Friends,
I got the bootloop problem on my nexus 6p from the last few days.
I Google it to solve the problem with various methods but I am unable to solve the problem. I tried command fastboot flashing unlock but I am getting remote: device is locked. I am unable to unlock usb debugging and oem through fastboot command prompt. When I write command fastboot devices then I get the serial number and when I write the command adb devices then I failed to get the device. I am also unable to get recovery mode.
here is some details of my nexus 6P.
Can you guys help me to overcome this problem and install the new android os.
Looking for your response.
Thank You guys.
Click to expand...
Click to collapse
*** I ran into a similar catch-22 issue on my 6P (H1511) the dreaded bootlooping with OEM Unlock turned OFF. ***
*** Couldn't flash the phone because OEM Unlock was off, and couldn't turn OEM Unlock on because it was bootlooping. ***
*** You MUST be able to fix the bootlooping/freezing at least temporarily, in order to turn on OEM Unlock in Developer Options ***
I have tried the "squeezing" method to no avail.
Then tried the heating method, which worked to a point where it has reached the color circles while booting, but then it started looping again.
I figured there's nothing to loose, so I cranked up the heat on the digital heating plate to exactly 140 Celsius for about 10 minutes covered with a paper towel, with only the upper half of the phone's back touching the heating plate (no need to "cook" the lower part with the battery).
It was still looping after the circles appeared, BUT by leaving it to cool off for about an hour, it has finally booted up into the setup page, so I quickly went to Settings > About/Phone/Software Info > clicked the "Build" line 7 times to enable Developer Options, under which I enabled OEM Unlock and ADB Debug.
If it's still bootlooping, you may try to "freezing" method where you would put the phone into the deep freezer for about an hour.
However, heating has worked for me.
Following that, in FastBoot mode I entered the following 3 versions of the flash unlock commands (only one will work out of the 3 which is fine):
fastboot oem unlock
fastboot flashing unlock
fastboot flashing unlock_critical
Downloaded the latest full stock firmware directly from Google.
https://dl.google.com/dl/android/aosp/angler-opm6.171019.030.b1-factory-ab13a98b.zip
Unzip it, and run flash-all.bat
Once the flashing has finished, DO NOT let it boot up, instead hold down the Volume Down as it's about to reboot, which will kick it into bootloader/fastboot mode.
I have tried flashing the Osmosis zip to patch the boot but it didn't work, it was still bootlooping.
So I have flashed a pre-patched 4-Core Boot kernel to fix the bootlooping issue permanently.
For Android 8.1 OPM6.171019.030 flash this 4-Core Boot with the commands below:
https://androidfilehost.com/?fid=13356325061477269711
fastboot flash boot Huawei_H1511_6P_OPM6.171019.030_Boot_4Core.IMG
fastboot reboot-bootloader
At this point flash a 4-Cores patched TWRP, go into TWRP recovery (hold down Volume Down + Power for 10 seconds, Volume Down to "Recovery", Power) and first "format" Data, then "wipe" Cache, Dalvik-Cache, and Data.
Note, all information on your phone will be lost by the above format/wipe operation.
All done, hope this method may help some of you.
And here are some interesting FastBoot commands I've come across....
C:\ADB>fastboot flashing get_unlock_ability
(bootloader) 1
OKAY [ 0.018s]
Finished. Total time: 0.019s
C:\ADB>fastboot getvar all
(bootloader) version:0.01
(bootloader) unlocked:yes
(bootloader) hardware-revision:ANGLER-VN2
(bootloader) version-baseband:angler-03.87
(bootloader) version-bootloader:angler-03.79
(bootloader) display-panel:
(bootloader) charger-screen-enabled:0
(bootloader) max-download-size: 0x1d800000
(bootloader) partition-type:cache:ext4
(bootloader) partition-size:cache: 0x6400000
(bootloader) partition-type:userdata:ext4
(bootloader) partition-size:userdata: 0xdaa17ee00
(bootloader) partition-type:system:ext4
(bootloader) partition-size:system: 0xc0000000
(bootloader) serialno:8XV5T15C11000453
(bootloader) kernel:lk
(bootloader) product:angler
all:
Finished. Total time: 0.172s
Instead of "fastboot getvar all", you can also use "fastboot getvar <variable>" (without the quotes and <>)
Any <variable> from the log above, between "(bootloader)" and the second ":"
For example:
fastboot getvar serialno
Enjoy!
My nexus 6P recently went through this bootloop,
Google screen coming up and stuck there, for 5 days, i was going through many possible solutions throughout the web, but they all said it must boot to OS to be able to unlock oem bootloader,
Finally stuck at extreme heat or cold, extreme heat did'nt work for me, but YES extreme cold did actually work, i kept it in the deep freezer for about half an hour, and then waited 2 min, and plugged the charging cable and powered ON the phone, to my astonishment, it did start and i was able to use the phone.
I have rebooted several times since then, it works fine for certain time, and then crashes and restarts all the time, i can still use th phone but its uncertain when it will restart again.
I tried to install new custom rom, but it still says DEVICE IS LOCKED and i cannot do anything else.
This will the Ultimate Guide to Unlock Bootloader. Install TWRP and Root.
Unlock Bootloader
Requirements:
• Mobile
• PC
• USB Cable
• Internet connection
Procedure:
• Setup your MIUI account by going to Settings -> Mi Account
• Apply for permission here (Use MIUI browser on the phone-Mandatory) (http://en.miui.com/unlock/download_en.html)
• Use your phone number with your country prefix to log in (ex. +91 Mobile number, is for India. Ex +91 99999999)
• Write why you want to unlock the device in 2-3 sentences (it may take a few days, Be patient. You will receive SMS confirmation if approved)
• Download Mi Unlocker from here (http://en.miui.com/unlock/download_en.html)
• Enable developer options by going to Settings -> About phone and tap 7 times on MIUI version
• Go to Settings -> Additional Settings -> Developer Settings and tick OEM Unlocking and USB debugging
• Go to Settings -> Additional Settings -> Developer Settings -> Mi Unlock Status and press Unlock
• Turn your Mobile data, Sync , WiFi and GPS on and wait for 5 minutes and don't turn them off afterwards
• Go to Mi Cloud by clicking here (https://i.mi.com/)
• Login with your phone number
• Click on Find device and locate your phone
• In the folder where you've extracted the Mi Unlock tool, you will find a program called MiUsbDriver, open it and press Install
• Log in to Mi Unlock by opening miflash_unlock on PC with the same phone number you used in obtaining the unlock permission
• Switch off your phone and go into Fastboot by pressing Volume down and Power simultaneously and connect your phone to the PC
• Once it shows a handset in Mi Unlock click on Unlock button
• Wait for a minute and you are done
• Your phone's bootloader is now UNLOCKED
NOTE: if you are stuck anywhere during this procedure, please start from step 1.
The main advantage of this procedure is that you don't need Developer ROM, it will work on Official builds as well.
Flashing TWRP
Requirement
ADB
TWRP for Redmi 5A (Riva) (https://forum.xda-developers.com/android/development/recovery-twrp-3-1-1-0-xiaomi-redmi-5a-t3712243)
LazyFlasher zip https://androidfilehost.com/?fid=673368273298947108
Procedure:
1. Reboot to Fastboot mode by pressing and holding Volume down + power button
2. Connect the phone to the computer with the original usb cable.
3. On your computer download the recovery from the link below and move it to the ADB folder.
4. Now in the adb folder, press shift and right click, select “open command prompt here”
5. Type the following
fastboot devices (to check if the computer recognizes the phone)
fastboot flash recovery twrp-3.2.1-0-riva.img (Flashes the TWRP to the phone)
6. Reboot the device to recovery. DO NOT BOOT TO SYSTEM YET Use Volume Up + Power to boot to recovery.
7. Flash Lazyflasher to disable dm-verity & forced encryption on MIUI.
8. Reboot to system
Now you have TWRP and MIUI.
Cheers.
If you've visited the MIUI forums, you'll be seeing complaints everywhere about the unsuccessful account binding that shows error code: 86023 hardwareId abnormal (<- Chinese fonts), and it has to do with Indonesian Xiaomi products. I'm certain Indian devices are all good to go for unlocking. But other devices are having a hard time. Trust me I've done you're guide before, with the same procedures, I've even tried other guides, but it's the same results. If you want to see my logcat, I'll upload one for you.
TAM warranty problem
I think it is related with this issue for Indonesian Mi user. http://en.miui.com/thread-719126-1-1.html
ezrawk said:
If you've visited the MIUI forums, you'll be seeing complaints everywhere about the unsuccessful account binding that shows error code: 86023 hardwareId abnormal (<- Chinese fonts), and it has to do with Indonesian Xiaomi products. I'm certain Indian devices are all good to go for unlocking. But other devices are having a hard time. Trust me I've done you're guide before, with the same procedures, I've even tried other guides, but it's the same results. If you want to see my logcat, I'll upload one for you.
Click to expand...
Click to collapse
That's a server issue
Gowtham55 said:
That's a server issue
Click to expand...
Click to collapse
Which has been fixed since like a week ago. Yeah that's what they say. Server issue. For Indian user's yeah it was a server issue, but for Indo users nope, we had to totally go crazy on social media and forums until they enabled UBL (ENABLED UBL?).
Let me get this straight, I asked several local Xiaomi authorized service centers and even TAM service centers, I emailed local Xiaomi CS, even did an online chat with them. What did all of them say? They all said the same thing: that UBL has been disabled for Indonesian Xiaomi devices under TAM warranty. Do you have proof that it was a server issue for TAM devices? If you do please post it. Please if it was a server issue, why the heck did the replies of Xiaomi CS Indonesia emails to me all said the same things: "UBL has been disabled for devices under TAM warranty."
I had to wait for a total of 3 months and several days (plus an extra 15 days after binding account, which right now I'm in my 9th day of waiting). I needed my 5A to be unlocked and rooted from day 1. Why? Because my old phone died out, I needed my 5A to be my daily driver. I needed it for work, for communication, for projects. I was willing to wait for 15 days prior binding, but it didn't get resolved for 3 bloody damn months. Would Xiaomi compensate my loses? Nope. So please if it was really a server issue, bring me proof, because I am already totally disappointed in Xiaomi.
360 hours mi flash unlock wait
Today I unlocked my bootloader finally after 360 hours of waiting
Thanks for guide its very helpfull
Thanks for the post. It'd be so cool if there was an alternate method than the legit one... I've request it to be unlocked 15 days ago, maybe more, and still havn't gotten any news...
parpagnas said:
Thanks for the post. It'd be so cool if there was an alternate method than the legit one... I've request it to be unlocked 15 days ago, maybe more, and still havn't gotten any news...
Click to expand...
Click to collapse
If you are not afraid of voiding the warranty, you could try this method: https://forum.xda-developers.com/android/general/bypass-bootloader-lock-redmi-5ariva-t3772381
After the 6th step, I got stuck in the mi logo... any solution?
will this unlock procedure wipe /data?
No
guys I'm getting 86006 error? anyone knows how to proceed?
If I unlock my bootloader, will I be able to user other sim card provider as well?
Thans dev. all went very smoothly.
Mi Unlock Status : Unlock, Bootloader still locked
I do have the following issue: My "Mi Unlock Status" is already Unlock. When I use fasboot to get "oem device-info" it says device isn't unlocked. Unfortunately I cannot bind a new Mi-Account to the device, to follow the procedure. Anybody has an idea?
grandpianisto said:
I do have the following issue: My "Mi Unlock Status" is already Unlock. When I use fasboot to get "oem device-info" it says device isn't unlocked. Unfortunately I cannot bind a new Mi-Account to the device, to follow the procedure. Anybody has an idea?
Click to expand...
Click to collapse
Problem solved, had a unofficial global miui rom installed on my (originally) chinese device. After flashing chinese dev rom via EDL (tespoint) y I able to unlock the device in the normal way.
I am getting error current account can not unlock this device. Been trying for over 2 months now. Someone plz help me.
adityam0338 said:
I am getting error current account can not unlock this device. Been trying for over 2 months now. Someone plz help me.
Click to expand...
Click to collapse
Maybe someone will help, if you give detailed information about what you have tried, and what exactly went wrong with description of errors and maybe screenshots