Develop Bugs

fastboot never start after update to android 6

Hy
I had an unlocked bootloader phone. Yesterday I flashed the new Android 6, Europe version from the Huawei blog forum, no beta, on my Huawei GX8. I used the method, dload on SD card, Phone off an the press Volume down+volume up+Power button.The flashing was normaly.
Now the phone starts normaly but I can´t start fastboot. When the phone is off and i press Vol down + Power the phone start the android system and the Huawei logo is coming not the fastboot Modus. I can see my phone and the order under Windows but i can not control my phone with the fastboot command. (example: fastboot device. the answere ist searching devices, but it comes no resolution) I loaded the last version of Fastboot, but the problem is the same.
Please can you help me. What can i do? Many thanks for your help!

Should be connect the charger cable to the phone.
charger or computer
excuse me for bad english

No i use a data cable, debugging is on. I can copy data from my phone to PC or from PC to phone, but fastboot does not found my device.

bertl237 said:
No i use a data cable, debugging is on. I can copy data from my phone to PC or from PC to phone, but fastboot does not found my device.
Click to expand...
Click to collapse
And when you use adb to reboot to bootloader, what happen? Do you have "Minimal adb and fastboot tool" installed?

krispin said:
And when you use adb to reboot to bootloader, what happen? Do you have "Minimal adb and fastboot tool" installed?
Click to expand...
Click to collapse
Sorry for my question, what´s the differents about adb and fastboot tool? I have install the last version of minimal adb and the fastboot tool, also the Windows driver for the phone. Debugging is on. I try to connect my phone about the fastboot terminal. When i try to set the phone into the bootloader mod with the fastboot terminal and the equivalent command, fastboot say´s "searching phone". My phone does not react.

bertl237 said:
Sorry for my question, what´s the differents about adb and fastboot tool? I have install the last version of minimal adb and the fastboot tool, also the Windows driver for the phone. Debugging is on. I try to connect my phone about the fastboot terminal. When i try to set the phone into the bootloader mod with the fastboot terminal and the equivalent command, fastboot say´s "searching phone". My phone does not react.
Click to expand...
Click to collapse
So, you connect your phone, open minimal adb and fastboot too, run "adb devices", you see device id? If yes, run "adb reboot bootloader" . Phone shoult reboot to fastboot mode. Then run "fastboot devices" to see if it is connected properely.

i did it, like you described, but i see not my device id. Only the note "seach device"
Is it possible that TWRP is defect on my device? Is TWRP necessary for fastboot or only for root?

bertl237 said:
i did it, like you described, but i see not my device id. Only the note "seach device"
Is it possible that TWRP is defect on my device? Is TWRP necessary for fastboot or only for root?
Click to expand...
Click to collapse
No, you should be able to use adb and fastboot with stock recovery.
After first adb command you shoult approve authorization on your phone.

Here is screenshot from minimal adb...
Phone must be in MTP mode.

And here is phone in fastboot

Many thanks for your help, now I m in my bootloader.
2 problems i had.
1. My daemon was not started correctly, i have not seen my device.
2. I used the wrong command. I started with fastboot, not with the command adb device. I tap „fastboot reboot-bootloader“,but the correct command is “adb reboot-bootlader“
Now i have seen my phone is unlocked, i hope i can root my android 6.

bertl237 said:
Many thanks for your help, now I m in my bootloader.
2 problems i had.
1. My daemon was not started correctly, i have not seen my device.
2. I used the wrong command. I started with fastboot, not with the command adb device. I tap „fastboot reboot-bootloader“,but the correct command is “adb reboot-bootlader“
Now i have seen my phone is unlocked, i hope i can root my android 6.
Click to expand...
Click to collapse
Just reboot to fastboot and flash surdu-petru version of TWRP recovery 3.0.2 with command "fastboot flash recovery xxxxx.img". And than reboot to recovery and flash supersu zip.

Need Help For switching rom from china to global

hi devs
i flashed accidentially Chinese recovery rom on my whyred now i m unable to switch from Chinese to global version as i tried every method fastboot,recovery,qfil,mi flash and edl mode i mean every possible way but all in vain as every method ended with error and my fastboot command is locked.
so what can i do please suggest me
it's Chinese miui 11

guys please help me i m frustrated tried every available method on internet downloaded tons of file.

aliasgertaj said:
guys please help me i m frustrated tried every available method on internet downloaded tons of file.
Click to expand...
Click to collapse
What you are trying to do? Just switch from Chinese to Global? or your device is bricked now?
What did happen after that you flashed the Chinese recovery ROM?
What modes do you have available?
Did you unlock bootloader previously?

SubwayChamp said:
What you are trying to do? Just switch from Chinese to Global? or your device is bricked now?
What did happen after that you flashed the Chinese recovery ROM?
What modes do you have available?
Did you unlock bootloader previously?
Click to expand...
Click to collapse
i m not bricked as my device is working fine
but now no fastboot command working i m not able to flash custom recovery
i tried fastboot method , used miflash method every miflash from old to newest , qfil edl mode method with miflash and qualcomm flash tool
i m just able to switch between china stable n developer rom
if i m able to unlock ma fastboot command then i can flash atleast custom recovery .
kindly help me as all method ended up every time with diffrent error.

aliasgertaj said:
i m not bricked as my device is working fine
but now no fastboot command working i m not able to flash custom recovery
i tried fastboot method , used miflash method every miflash from old to newest , qfil edl mode method with miflash and qualcomm flash tool
i m just able to switch between china stable n developer rom
if i m able to unlock ma fastboot command then i can flash atleast custom recovery .
kindly help me as all method ended up every time with diffrent error.
Click to expand...
Click to collapse
Fastboot flashing commands won't work if you have bootloader locked.
Did you unlock bootloader previously and probably get locked again?
Did you enable all the proper options on Developer section, i.e. USB debugging and check if device is recogniced on adb commands?
What do you get with "fastboot getvar all"?

subwaychamp said:
fastboot flashing commands won't work if you have bootloader locked.
Did you unlock bootloader previously and probably get locked again?
Did you enable all the proper options on developer section, i.e. Usb debugging and check if device is recogniced on adb commands?
What do you get with "fastboot getvar all"?
Click to expand...
Click to collapse
thanks a lot dude i m on unlock boot loader .
But bootloader some time works means sometimes it shows my device name after available device command it shows only ???????? Fastboot devices
i tried all way possible but none of them worked.
And i m unable to switch from china to global.
Only i can do is switch between china stable to developer.

i tried getvar command but it gave me this
PS C:\adb> adb reboot bootloader
error: device '(null)' not found
PS C:\adb> fastboot getvar all
getvar:all FAILED (command write failed (Unknown error))
finished. total time: 5.007s
PS C:\adb>

aliasgertaj said:
i tried getvar command but it gave me this
PS C:\adb> adb reboot bootloader
error: device '(null)' not found
PS C:\adb> fastboot getvar all
getvar:all FAILED (command write failed (Unknown error))
finished. total time: 5.007s
PS C:\adb>
Click to expand...
Click to collapse
And you said you enabled USB debuging?!? you didn't. First enable it under development tools.
MAKE SURE YOUR USING RIGHT ADB/FASTBOOT TOOLS AND DRIVERS.
After 'adb reboot bootloader' use 'fastboot devices'. You can change usb cable and if you still get errors try using usb hub.
If all above fails than try it on WIN7 PC.

aliasgertaj said:
thanks a lot dude i m on unlock boot loader .
But bootloader some time works means sometimes it shows my device name after available device command it shows only ???????? Fastboot devices
i tried all way possible but none of them worked.
And i m unable to switch from china to global.
Only i can do is switch between china stable to developer.
Click to expand...
Click to collapse
aliasgertaj said:
i tried getvar command but it gave me this
PS C:\adb> adb reboot bootloader
error: device '(null)' not found
PS C:\adb> fastboot getvar all
getvar:all FAILED (command write failed (Unknown error))
finished. total time: 5.007s
PS C:\adb>
Click to expand...
Click to collapse
I think you are not properly booted to the proper state while you're trying certain commands. Just to be clear; adb works while your device is power on and fastboot commands will work only while your device is in fastboot mode not while on adb mode. A way to be sure that you are doing properly is enabling USB debugging first but while connected device with PC, a prompt will appear from device screen and then tap on "always allow", then you have to type "adb devices" and follow step by step, if device is recognized you can go to the next step with "adb reboot bootloader" then in fastboot you have to see the bunny otherwise is not properly in fastboot mode, then you can follow with "fastboot devices" and so on, keep in mind that any command will work until device is properly recognized.

SubwayChamp said:
I think you are not properly booted to the proper state while you're trying certain commands. Just to be clear; adb works while your device is power on and fastboot commands will work only while your device is in fastboot mode not while on adb mode. A way to be sure that you are doing properly is enabling USB debugging first but while connected device with PC, a prompt will appear from device screen and then tap on "always allow", then you have to type "adb devices" and follow step by step, if device is recognized you can go to the next step with "adb reboot bootloader" then in fastboot you have to see the bunny otherwise is not properly in fastboot mode, then you can follow with "fastboot devices" and so on, keep in mind that any command will work until device is properly recognized.
Click to expand...
Click to collapse
thanks bro
yesterday i used xiaomitool v2 as it reboot automatically device in fastboot mode but as i said after in fastboot mode it doesn't boot in adb mode.
and what is proper method to open fastboot mode i m doing it by holding power and volume down button.

drnightshadow said:
And you said you enabled USB debuging?!? you didn't. First enable it under development tools.
MAKE SURE YOUR USING RIGHT ADB/FASTBOOT TOOLS AND DRIVERS.
After 'adb reboot bootloader' use 'fastboot devices'. You can change usb cable and if you still get errors try using usb hub.
If all above fails than try it on WIN7 PC.
Click to expand...
Click to collapse
thanks for response bro
i did it under developer option and trusted my computer connection also and install adb fastboot devices many time changed cable and port but nothing happen. i tried fastboot files of china stable rom but it also doesn't worked

aliasgertaj said:
thanks bro
yesterday i used xiaomitool v2 as it reboot automatically device in fastboot mode but as i said after in fastboot mode it doesn't boot in adb mode.
and what is proper method to open fastboot mode i m doing it by holding power and volume down button.
Click to expand...
Click to collapse
Just trying to determine what your words exactly mean when you say "after in fastboot mode it doesn't boot in adb mode." ... without entering in more technical insights adb works when device is on, no sense to boot to fastboot to try to boot to adb after that (?)
If you can boot to fastboot what you have to try firstly is unlock bootloader or be sure that is already unlocked using
Code:
fastboot oem device-info
if your device is or get unlocked then you can try to flash or just boot to a custom recovery but if you can't determine until now if your device is really unlocked then you couldn't go further.
The hardware method to enter to fastboot is from a device off; pressing both pwr and vol down buttons but if the bunny is not displayed probably you didn't really get fastboot mode.

SubwayChamp said:
Just trying to determine what your words exactly mean when you say "after in fastboot mode it doesn't boot in adb mode." ... without entering in more technical insights adb works when device is on, no sense to boot to fastboot to try to boot to adb after that (?)
If you can boot to fastboot what you have to try firstly is unlock bootloader or be sure that is already unlocked using
Code:
fastboot oem device-info
if your device is or get unlocked then you can try to flash or just boot to a custom recovery but if you can't determine until now if your device is really unlocked then you couldn't go further.
The hardware method to enter to fastboot is from a device off; pressing both pwr and vol down buttons but if the bunny is not displayed probably you didn't really get fastboot mode.
Click to expand...
Click to collapse
i m frustrated now tried all the thing tried official flash tool official build but even official build by miflash official latest tool unable to flash image

i bought my device to official xiaomi service center they told it will be done in an hour but after couple of hour they returned my phone that it cant be updated.??????
shame on xiaomi that they implemented a method that they themselves also don't know how to revert it.

aliasgertaj said:
i bought my device to official xiaomi service center they told it will be done in an hour but after couple of hour they returned my phone that it cant be updated.??????
shame on xiaomi that they implemented a method that they themselves also don't know how to revert it.
Click to expand...
Click to collapse
Do yo use WIN10? Find PC with Win7... and install adb/fastboot app and drivers. Than try..
Is your system working now?
Just unlock your bootloader and install OrangeFox recovery than you can flash whatever you need.
Problem solved.

drnightshadow said:
Do yo use WIN10? Find PC with Win7... and install adb/fastboot app and drivers. Than try..
Is your system working now?
Just unlock your bootloader and install OrangeFox recovery than you can flash whatever you need.
Problem solved.
Click to expand...
Click to collapse
ok bro i will try today with another pc and update you

aliasgertaj said:
ok bro i will try today with another pc and update you
Click to expand...
Click to collapse
thanks installed twrp on other pc running on windows 7 but now internal storage goes 0mb unable to mount system

aliasgertaj said:
thanks installed twrp on other pc running on windows 7 but now internal storage goes 0mb unable to mount system
Click to expand...
Click to collapse
Wtf .. what's wrong with you.. you did everything we said wrong... Where and when did I told you to install TWRP????
I'm done with you...
Good luck with china ROM.
Ignorance is a bliss.

drnightshadow said:
Wtf .. what's wrong with you.. you did everything we said wrong... Where and when did I told you to install TWRP????
I'm done with you...
Good luck with china ROM.
Ignorance is a bliss.
Click to expand...
Click to collapse
thanks dude i installed twrp wipe my internal storage there is some error then some tricks goes perfect as i supposed and woohaa i installed masik port edition and now my phone works fine.

aliasgertaj said:
thanks dude i installed twrp wipe my internal storage there is some error then some tricks goes perfect as i supposed and woohaa i installed masik port edition and now my phone works fine.
Click to expand...
Click to collapse
TWRP can't bypass encryption, when you have no access to read data (0mb) then you have to format it, to avoid that is always recommended use OrangeFox, just for future reference, if you understand that you can flash OrangeFox through TWRP for better experience.
Also you can use this tool to help you to automate some stuff https://github.com/Szaki/XiaomiADBFastbootTools

No bootable a/b slot

Hi all,
I have a T-Mobile Revvlry that I’ve been trying to flash lineage os to. It was unlocked and now after so many tries, it is oem locked
I went through all the unlock bootloader process before and was able to flash but always no os installed are you sure you want to proceed.
Slots a and b were confusing and so I changed the slot to a for flashing but this time the bootloader screen changed along with the serial number and now it is oem locked and can do nothing now .
I tried to boot twrp but no success. How can I oem unlock?? I tried the command fastboot oem unlock and fastboot flash etc but it is denied and that I need a code. Which I do have but don’t know how to use it now.

glossallalia said:
Hi all,
I have a T-Mobile Revvlry that I’ve been trying to flash lineage os to. It was unlocked and now after so many tries, it is oem locked
I went through all the unlock bootloader process before and was able to flash but always no os installed are you sure you want to proceed.
Slots a and b were confusing and so I changed the slot to a for flashing but this time the bootloader screen changed along with the serial number and now it is oem locked and can do nothing now .
I tried to boot twrp but no success. How can I oem unlock?? I tried the command fastboot oem unlock and fastboot flash etc but it is denied and that I need a code. Which I do have but don’t know how to use it now.
Click to expand...
Click to collapse
Did you follow the preinstall instruction and use copy-partitions-20210323_1922.zip?
if not that's what caused the problem.
You will need to use a blankflash to fix
Search for Channel blankflash there are some here
lolinet mirrors - firmware, software, iso etc.
lolinet mirrors - powered by h5ai
mirrors.lolinet.com
but you may need a newer one
The device will need to be in Emergence Download Mode (EDL Mode)
Use
Code:
fastboot oem blankflash
or
boot twrp (use full twrp file name)
Code:
fastboot boot twrp.img
and use
Code:
adb reboot edl
EDL Mode is just a black screen, and
Windows device manager will see it as a Qualcomm device (attached)
If it says ..._bulk... you need the Qualcomm drivers

Thank you! Yes I did follow the preinstall instruction and used copy-partitions-20210323_1922.zip several times. But obviously messed it up somehow.
I was missing some of the things you mentioned so I’ll work on that and thanks again!

sd_shadow said:
Did you follow the preinstall instruction and use copy-partitions-20210323_1922.zip?
if not that's what caused the problem.
You will need to use a blankflash to fix
Search for Channel blankflash there are some here
lolinet mirrors - firmware, software, iso etc.
lolinet mirrors - powered by h5ai
mirrors.lolinet.com
but you may need a newer one
The device will need to be in Emergence Download Mode (EDL Mode)
Use
Code:
fastboot oem blankflash
or
boot twrp (use full twrp file name)
Code:
fastboot boot twrp.img
and use
Code:
adb reboot edl
EDL Mode is just a black screen, and
Windows device manager will see it as a Qualcomm device (attached)
If it says ..._bulk... you need the Qualcomm drivers
Click to expand...
Click to collapse
Blankflash did work to blank the screen. But <adb reboot edl > came back with ‘no devices/emulators found’.
I do have the Qualcomm drivers

glossallalia said:
Blankflash did work to blank the screen. But <adb reboot edl > came back with ‘no devices/emulators found’.
I do have the Qualcomm drivers
Click to expand...
Click to collapse
No, you only use "adb reboot edl" if "fastboot oem blankflash" didn't work.
Now use the blankflash file.

sd_shadow said:
No, you only use "adb reboot edl" if "fastboot oem blankflash" didn't work.
Now use the blankflash file.
Click to expand...
Click to collapse
Ok, when I do the blankflash, there is the blank screen, however I can't communicate with the device after that and if I have lineage.zip or copy-partitions-etc...zip, how could I flash it or what is the next step? I'm new at this - I started this a year ago, after, gave up for a while.
Thanks!

glossallalia said:
Ok, when I do the blankflash, there is the blank screen, however I can't communicate with the device after that and if I have lineage.zip or copy-partitions-etc...zip, how could I flash it or what is the next step? I'm new at this - I started this a year ago, after, gave up for a while.
Thanks!
Click to expand...
Click to collapse
If you have run the blank-flash.bat and it worked the device will reboot to bootloader.
If the device remains in EDL Mode, the blankflash failed, you may need a newer version.
You may need to do some searching in the forums for a newer version.

sd_shadow said:
If you have run the blank-flash.bat and it worked the device will reboot to bootloader.
If the device remains in EDL Mode, the blankflash failed, you may need a newer version.
You may need to do some searching in the forums for a newer version.
Click to expand...
Click to collapse
thanks - blank-flash.bat worked and i'm back to flashing again - I sideload copy-partitions-etc.zip and the lineage.zip and there is 'no os installed...' this happens every time, and before as well. When I 'start' from the fastboot flash mode, it starts to draw the lineage symbol, then goes back to bootloader.

glossallalia said:
thanks - blank-flash.bat worked and i'm back to flashing again - I sideload copy-partitions-etc.zip and the lineage.zip and there is 'no os installed...' this happens every time, and before as well. When I 'start' from the fastboot flash mode, it starts to draw the lineage symbol, then goes back to bootloader.
Click to expand...
Click to collapse
what is the file name of lineage.zip?

sd_shadow said:
what is the file name of lineage.zip?
Click to expand...
Click to collapse
LineageOS17.1Modified.img.xz
I went to Motorola website and flashed the firmware to restore the phone to its original state. I'll try lineage again in future and thank you!

Unable to flash TWRP

I am trying to flash the LineageOS on my Redmi Note 5 Pro (whyred). Initially, I used Windows 10 for the Xiaomi Unlock Tool. However, the Xiaomi Unlock Tool did not detect my device. So, I used this tool https://www.xiaomitool.com/V2/ to unlock my bootloader and it unlocked instantly. Now, I am using Ubuntu 21.04 (I am more comfortable using the command line here) (with android-tools-adb and android-tools-fastboot packages installed) to try to flash TWRP first.
When I connect my device, adb devices can recognise it. Then I use adb reboot bootloader to enter into fastboot. Now, fastboot devices can recognise it too. The screen of the phone shows the fastboot icon.
But, the problem comes here. I use fastboot flash recovery twrp.img and I get this error
FAILED (Write to device failed (No such device))
Click to expand...
Click to collapse
Now, when I use fastboot devices again. I don't see my device. Another change I see is press any key to shutdown written on the top left corner of the screen of my phone.
USB debugging, USB debugging security, OEM debugging are all enabled. Bootloader is unlocked (as I see in the settings). The phone is updated to latest MIUI version supported officially. And I used the same laptop and method to flash TWRP in a Redmi 3S (land) some time back.
(Posted the same question on android.stackexchange.com also) (https://android.stackexchange.com/questions/238996/redmi-note-5-pro-unable-to-flash-twrp)

Something else I experienced is that after randomly trying to get this right again and again, the command fastboot flash recovery twrp.img did not terminate or fail and got stuck.

So, this was a duplicate. I used the 5th method here and it worked for me. https://forum.xda-developers.com/t/everything-about-anti-roll-back-whyred.3816219/

Bootloop issue with boot reason

hello there, I'm currently using one plus 7 T, I don't know why , but after updating the last software update my device stuck in Boot loop, i can't able to turn it on, The boot reason says that : Init_user0_Failed . Unable to parse kernel log.Could you please help me to get out from this issue. As i'm outstation from the city, so i can't able to reach the service center. I need my data so i'm trusting you that you guys will sort out the issue, Thank you so much for reading this.

"fastboot set_active other" to switch slot

I'm facing the same problem. Please find a workable solution asap. I'll thank endlessly.

HueyT said:
"fastboot set_active other" to switch slot
Click to expand...
Click to collapse
How and where do I do this?

kiranlalge said:
How and where do I do this?
Click to expand...
Click to collapse
In bootloader mode (check YouTube for how to boot into bootloader or fastboot mode for OnePlus 7t)

HueyT said:
In bootloader mode (check YouTube for how to boot into bootloader or fastboot mode for OnePlus 7t)
Click to expand...
Click to collapse
"fastboot set_active other" to switch slot
It looks like the above needs to be typed in somewhere. Because I do not see any typing option on any of the screens the device shows in this situation.
Please help further. I'm not sure if the developer of the given ROM is reading my posts. I'm very hopeful on him to resolve my issue. Fingers crossed.

kiranlalge said:
"fastboot set_active other" to switch slot
It looks like the above needs to be typed in somewhere. Because I do not see any typing option on any of the screens the device shows in this situation.
Please help further. I'm not sure if the developer of the given ROM is reading my posts. I'm very hopeful on him to resolve my issue. Fingers crossed.
Click to expand...
Click to collapse
Plug phone into windows laptop with adb installed on laptop:
[Download] ADB Installer v1.4.3 - Drivers, ADB and Fastboot Tools
Install drivers, ADB and fastboot tools with one single installer.Advertisement What’s ADB Installer v1.4.3 This package includes all required drivers for Android: ADB drivers (Android Debug Bridge), Fastboot and Google USB-drivers. Very easy to install. Features: Small size. Fast installation...
xiaomifirmware.com

I installed the ADB driver , now what ?? Will this erase my phone's data ?

Hi:
I'm with the same problem here, and i'm trying the "fastboot set_active other" command, but it returns me: "waiting for any device".
How can I proceed to make the phone recognized by the PC?

Zesotar said:
Hi:
I'm with the same problem here, and i'm trying the "fastboot set_active other" command, but it returns me: "waiting for any device".
How can I proceed to make the phone recognized by the PC?
Click to expand...
Click to collapse
15 min adb fastboot drivers, OnePlus USB drivers, Qualcomm USB 9008 drivers (msmtool)

ashuetrx said:
I installed the ADB driver , now what ?? Will this erase my phone's data ?
Click to expand...
Click to collapse
Enable "USB debugging" in Dev.Options, Boot into fastboot mode on phone, type "fastboot devices" and it should give you a code--then your phone is ready for fastboot flashing files

Tried in another computer with Windows 10. It returns: "Slot change is not allowed in Lock State"
I get the a code with the fastboot devices, so it seems the phone is ready.

Finally used MSM tool. I lost all my photoss but I recovered the phone.
Thanks for all the help!

Zesotar said:
Finally used MSM tool. I lost all my photoss but I recovered the phone.
Thanks for all the help!
Click to expand...
Click to collapse
how exactly did you do it with MSM tool?

cromedo7 said:
how exactly did you do it with MSM tool?
Click to expand...
Click to collapse
5 seconds with Google.
Fastboot method is much easier and without data loss.
Download
https://forum.xda-developers.com/t/tool-minimal-adb-and-fastboot-2-9-18.2317790/
Reboot to fastboot mode
Start minimal ADB and fastboot
Type: fastboot devices
If you see device and something like that:1S67gz everything's ok.
Now type: fastboot set_active other
Type reboot.
Done