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Hello,
Ive got a phone from a customer saying it wont boot up, also said he just OTAed, It only enter bootloader mod (stuck on black screen when trying yo enter recovery).
It also says Secure Boot - enable
and I cant flash anything of course , What can I do to boot it up ?
is his bootloader unlocked?
---------- Post added at 01:09 PM ---------- Previous post was at 01:08 PM ----------
try and use this https://developers.google.com/android/nexus/images
---------- Post added at 01:09 PM ---------- Previous post was at 01:09 PM ----------
try and use this https://developers.google.com/android/nexus/images
theyau said:
is his bootloader unlocked?
---------- Post added at 01:09 PM ---------- Previous post was at 01:08 PM ----------
try and use this https://developers.google.com/android/nexus/images
---------- Post added at 01:09 PM ---------- Previous post was at 01:09 PM ----------
try and use this https://developers.google.com/android/nexus/images
Click to expand...
Click to collapse
Its always locked, if I unlock the bootloader its automatically re-locking after reboot
Bump
any one has any idea please ?
deadwolf666 said:
Hello,
Ive got a phone from a customer saying it wont boot up, also said he just OTAed, It only enter bootloader mod (stuck on black screen when trying yo enter recovery).
It also says Secure Boot - enable
and I cant flash anything of course , What can I do to boot it up ?
Click to expand...
Click to collapse
Secure boot is enabled on all Nexus 4's, and you cannot disable it. By the way, Secure boot has nothing to do with the lock state of the bootloader -- it has to do with the secure boot chain of the AQP8064 chipset.
Unlock the booloader using "fastboot oem unlock" and then flash the factory images. See here.
If simply flashing factory images, an unlock should not be necessary. Is customer wanting you to try and preserve data?
efrant said:
Secure boot is enabled on all Nexus 4's, and you cannot disable it. By the way, Secure boot has nothing to do with the lock state of the bootloader -- it has to do with the secure boot chain of the AQP8064 chipset.
Unlock the booloader using "fastboot oem unlock" and then flash the factory images. See here.
Click to expand...
Click to collapse
Thanks for the answer but the wierd problem is that after I unlock the bootloader and try to flash any thing I get":
sending 'bootloader' (2188 KB)... FAILED (command write failed (Unknown error))
Click to expand...
Click to collapse
and after I reboot it shows that the bootloader is locked
I managed to boot into twrp recovery but no screen by "fastboot boot recovery.img" and I get adb access.
ant thing I can do from here ?
deadwolf666 said:
I managed to boot into twrp recovery but no screen by "fastboot boot recovery.img"
Click to expand...
Click to collapse
You are seeing a black screen because you are not using the correct command. It should be: fastboot -c "lge.kcal=0|0|0|x" boot recovery.img
efrant said:
You are seeing a black screen because you are not using the correct command. It should be: fastboot -c "lge.kcal=0|0|0|x" boot recovery.img
Click to expand...
Click to collapse
Thank you it helped abit
now I tryed twrp and it asked me for decryd pass, and cant mount any partition.
cwm can sideload but wipe will give errors (cant mount) and after reboot the bootloader is locked againg and wont boot.
stock just reboots.
can it be HW ? or any other solution ?
btw where did you learend this switch and where can I read about it ? "lge.kcal=0|0|0|x"
Thanks again
deadwolf666 said:
Thank you it helped abit
now I tryed twrp and it asked me for decryd pass, and cant mount any partition.
cwm can sideload but wipe will give errors (cant mount) and after reboot the bootloader is locked againg and wont boot.
stock just reboots.
can it be HW ? or any other solution ?
btw where did you learend this switch and where can I read about it ? "lge.kcal=0|0|0|x"
Thanks again
Click to expand...
Click to collapse
Two options before we decide it's hardware.
Procedure #1:
1) Download the LATEST version of fastboot.exe from here and extract it to C:\android.
2) Download the latest factory image from Google's dev page and verify the checksum with what is posted on the website.
3) Extract all the images from all the .tgz, .tar, .zip files within and put the 6 image files in C:\android
4) Reboot your device into the bootloader and plug into your PC.
5) Open a command prompt in that same directory and type the following commands:
Code:
fastboot oem unlock
fastboot reboot-bootloader
fasltboot flash bootloader bootloader-mako-makoz20i.img
fastboot reboot-bootloader
Does that work? If so then continue with flashing the radio, boot, system and recovery images. If not, then go to procedure number 2:
Procedure #2
Follow the instructions in this thread.
deadwolf666 said:
btw where did you learend this switch and where can I read about it ? "lge.kcal=0|0|0|x"
Thanks again
Click to expand...
Click to collapse
Have a look here.
efrant said:
Two options before we decide it's hardware.
Procedure #1:
1) Download the LATEST version of fastboot.exe from here and extract it to C:\android.
2) Download the latest factory image from Google's dev page and verify the checksum with what is posted on the website.
3) Extract all the images from all the .tgz, .tar, .zip files within and put the 6 image files in C:\android
4) Reboot your device into the bootloader and plug into your PC.
5) Open a command prompt in that same directory and type the following commands:
Code:
fastboot oem unlock
fastboot reboot-bootloader
fasltboot flash bootloader bootloader-mako-makoz20i.img
fastboot reboot-bootloader
Does that work? If so then continue with flashing the radio, boot, system and recovery images. If not, then go to procedure number 2:
Procedure #2
Follow the instructions in this thread.
Have a look here.
Click to expand...
Click to collapse
Procedure #1 is not working I get FAILED command write failed unknown error
Procedure #2 I tryed a few times on different pc (also different OS) and never got the software to recognize the phone (any way Ill try again and update)
thanks for the link will read it soon ^^
Cant make the NPST recognize the phone ;\
while booting custom recovery I cant mount any partition and the bootloader remains locked after reboot.
Any thing else to try ?
Hi all,
i've tried to unbrand my P9-Lite changing it's OEMInfos and custom .bin and flashing the lastest stock rom in order to obtain the un branded firmware.
What happened?
After the package upgrade the phone is stuck completely on a black screen , fastboot is reachable and i cannot do anything could you please help me?
I can't enter in recovey...nothing! only fastboot and this beautiful totally black screen (screen-off)
Thanks in advance
xCloudx13 said:
Hi all,
i've tried to unbrand my P9-Lite changing it's OEMInfos and custom .bin and flashing the lastest stock rom in order to obtain the un branded firmware.
What happened?
After the package upgrade the phone is stuck completely on a black screen , fastboot is reachable and i cannot do anything could you please help me?
I can't enter in recovey...nothing! only fastboot and this beautiful totally black screen (screen-off)
Thanks in advance
Click to expand...
Click to collapse
I let my battery drain out when this happened then boot to fastboot once it's dead and on charge
raihanbam said:
I let my battery drain out when this happened then boot to fastboot once it's dead and on charge
Click to expand...
Click to collapse
after how much time did it hut down?
Mine took all day to drain if thats what you mean?
---------- Post added at 07:15 PM ---------- Previous post was at 07:10 PM ----------
In fastboot unlock the bootloader and see what happens?
raihanbam said:
Mine took all day to drain if thats what you mean?
---------- Post added at 07:15 PM ---------- Previous post was at 07:10 PM ----------
In fastboot unlock the bootloader and see what happens?
Click to expand...
Click to collapse
The bootloader is unlocked
Everything i flash is useless, even stock image!
What firmware are you on? If you flash twrp can you boot to it?
---------- Post added at 07:55 PM ---------- Previous post was at 07:54 PM ----------
If not, try flashing meticulous
raihanbam said:
What firmware are you on? If you flash twrp can you boot to it?
---------- Post added at 07:55 PM ---------- Previous post was at 07:54 PM ----------
If not, try flashing meticulous
Click to expand...
Click to collapse
Nope even twrp! or meticulos
Revolution recovery? Does the three buttons method work?
raihanbam said:
Revolution recovery? Does the three buttons method work?
Click to expand...
Click to collapse
No sign of life, only fastboot reachable
well i'll explain better, my screen is totally off, if i plug the device via usb on pc it can be seen via fastboot it's in a kind of limbo?
Does it show when you type fastboot devices?
I am at the same problem, and yes, it shows in "fastboot devices", though everything besides this is black.. OP; did you manage to fix it?
black scree
xCloudx13 said:
well i'll explain better, my screen is totally off, if i plug the device via usb on pc it can be seen via fastboot it's in a kind of limbo?
Click to expand...
Click to collapse
#
Did you already found a solution to fix it ?
I have same problem only fastboot mode cant fastboot update.zip but seperate images seem to work tho. Any help to bring device back to life with something on screen is helpful
same situation
same Problem
I have try to upgrade my Phone with the stock recovery to emui 5 and after the finish its reboot and the screen keeps black. whats now if i dont fix this Problem... my mum will kill me i try to flash system.img, cust.img, boot.img, cache.img recovery.img, recovery2.img, i think this problem is the bootloader/fastboot/xloader i found in this update.app a xloader.img and a fastboot.img but fastboot cannt flash this "ERROR COMMAND NOT ALLOWED" please help.
fastboot oem check-rootinfo
(bootloader) old_stat: NULL
(bootloader) now_stat: NULL
(bootloader) change_time: NULL
(bootloader) Check System: file count fail
OKAY [ 0.016s]
finished. total time: 0.017s
i have same situation here
any solution to this problem ?
You can try to copy a valid ROM to your SD Card (the file named UPDATE.APP must be stored in a folder named "dload") and to start the phone by pressing Vol+, Vol- and Power simultaneously.
If that does not help, you could still "revive" the phone with DC Phoenix: https://www.dc-unlocker.com/DC-Phoenix-flash-repair-tutorial
The cost is 15 EUR/USD
same issue - VNS-L21C02B128
Hi guys, I ran into the same thing. Please let me know if someone of you manage to get out of the black screen.
I tried also debrand and then write a probably wrong oeminfo and then flashed the firmware for that oeminfo and now it's like dead, only fastboot reachable.
Please share any ideas... I don't want to get to DC-Phoenix or similar.
Thanks!
Sometimes in fastboot say the OEM it's unlocked, but that it's wrong, when you flash a OEM Info, or flash a update.app, OEM gets locked, no matter if fastboot say something else, try unlock your bootloader
Just got my vs995 with 14B. I've tried to access the fastboot to flash twrp with adb fastboot, but fastboot wasn't accessible.
I've tried to downgrade from 14B to 12A using LG UP and successfully done, but the fastboot still inaccessible neither through "adb reboot bootloader" nor "Holding Volume down key and attaching a usb cable" !!
Any suggestion ?
I'm in a real need to root my vs995.
Fastboot was removed. You need to root your phone with dirtysanta. You will then have an engineering aboot that has full fastboot commands...
-- Brian
runningnak3d said:
Fastboot was removed. You need to root your phone with dirtysanta. You will then have an engineering aboot that has full fastboot commands...
-- Brian
Click to expand...
Click to collapse
Can you direct me to the proper link ? Because the link I know uses fastboot !!
There is no fastboot on this phone. Phone has to have unlocked bootloader to get fastboot.
Search dirtysanta root.
it unlocks bootloader and enables fastboot.
---------- Post added at 06:47 AM ---------- Previous post was at 06:44 AM ----------
rayanspawn1 said:
Can you direct me to the proper link ? Because the link I know uses fastboot !!
Click to expand...
Click to collapse
https://forum.xda-developers.com/v2...06-19-2017-t3624326/post72735627#post72735627
Works on 13A. I tested on my phone countless times.
Writer claims it works on 12A.
hi guys can some one help me to recover the device, phone stuck at logo i can acces fastboot but i cant acces recovery mode. I flashed a fastbootm rom i found on the web, now the phone is bricked
Black Shark QNA
Hi, @damond share your mobile device model (is it shark 2 pro or shark) also let me know if these commands are working in your fastboot mode, fastboot devices
fastboot reboot bootloader
fastboot reboot recovery (this will lead you to phone recovery mode try formatting through this, it works always) if it doesn't, confirm.
Also, share the your device origin (like it was on global rom or CN rom) and if bootloader is unlocked or not.
If required, will create a fastboot rom for your device.
Thanks
---------- Post added at 10:07 AM ---------- Previous post was at 09:55 AM ----------
damond said:
hi guys can some one help me to recover the device, phone stuck at logo i can acces fastboot but i cant acces recovery mode. I flashed a fastbootm rom i found on the web, now the phone is bricked
Click to expand...
Click to collapse
Hi, @damond share your mobile device model (is it shark 2 pro or shark) also let me know if these commands are working in your fastboot mode, fastboot devices
fastboot reboot bootloader
fastboot reboot recovery (this will lead you to phone recovery mode try formatting through this, it works always) if it doesn't, confirm.
Also, share the your device origin (like it was on global rom or CN rom) and if bootloader is unlocked or not.
If required, will create a fastboot rom for your device.
Thanks
Shubhendu Shubham Sharma said:
Hi, @damond share your mobile device model (is it shark 2 pro or shark) also let me know if these commands are working in your fastboot mode, fastboot devices
fastboot reboot bootloader
fastboot reboot recovery (this will lead you to phone recovery mode try formatting through this, it works always) if it doesn't, confirm.
Also, share the your device origin (like it was on global rom or CN rom) and if bootloader is unlocked or not.
If required, will create a fastboot rom for your device.
Thanks
---------- Post added at 10:07 AM ---------- Previous post was at 09:55 AM ----------
Hi, @damond share your mobile device model (is it shark 2 pro or shark) also let me know if these commands are working in your fastboot mode, fastboot devices
fastboot reboot bootloader
fastboot reboot recovery (this will lead you to phone recovery mode try formatting through this, it works always) if it doesn't, confirm.
Also, share the your device origin (like it was on global rom or CN rom) and if bootloader is unlocked or not.
If required, will create a fastboot rom for your device.
Thanks
Click to expand...
Click to collapse
hi thanks for answering the model is black shark 2, skw-a0, i dont know if its posiblle to flash a global rom. Thanks in advance.
damond said:
hi thanks for answering the model is black shark 2, skw-a0, i dont know if its posiblle to flash a global rom. Thanks in advance.
Click to expand...
Click to collapse
Have you tried running fastboot commands( just copy paste the commands as it is in fast boot mode one by one
1. Fastboot reboot bootloader
2. Fastboot reboot recovery (use it to format your phone)
3. Fastboot erase userdata
Shubhendu Shubham Sharma said:
Have you tried running fastboot commands( just copy paste the commands as it is in fast boot mode one by one
1. Fastboot reboot bootloader
2. Fastboot reboot recovery (use it to format your phone)
3. Fastboot erase userdata
Click to expand...
Click to collapse
no i have not tried those commands, but i will as soon as a i get back home.
Shubhendu Shubham Sharma said:
Have you tried running fastboot commands( just copy paste the commands as it is in fast boot mode one by one
1. Fastboot reboot bootloader
2. Fastboot reboot recovery (use it to format your phone)
3. Fastboot erase userdata
Click to expand...
Click to collapse
Fastboot reboot bootloader, Fastboot erase userdata was succesfully, but Fastboot erase userdata gives error. And it still stuck at logo
damond said:
Fastboot reboot bootloader, Fastboot erase userdata was succesfully, but Fastboot erase userdata gives error. And it still stuck at logo
Click to expand...
Click to collapse
You ran twice same commands. One time it was successful and the other time it failed can you share the error.
Also, try this command (just copy paste it)
Fastboot devices
Fastboot reboot recovery.
Then try wiping out the phone.
C:\adb>Fastboot reboot recovery.
fastboot: usage: unknown reboot target recovery.
C:\adb>Fastboot reboot recovery
Rebooting into recovery OKAY [ 0.000s]
Finished. Total time: 0.000s
C:\adb>
But the phone does not enter recovery mode, it goes black and then black shark logo, it looks like there is no recovery partition.
Cool, give me a day or two, will create and share the fastboot rom to flash.
thanks ill be wating
MP6_Pie-ROM_Black_Shark_2_Pro
damond said:
thanks ill be wating
Click to expand...
Click to collapse
Hi, steps to flash this rom.
1. Download files from the Link (cannot post the link due to XDA Restriction)
2. Once download is completed, extract the zip file.
3. Run the Flash_All as administrator.
4. Allow the process to complete.
Once done, enjoy your phone
If this works do give me a thumbs up. If you face any issue let me know.
Share an email id of place where I can share the link.
Thanks.
hi bro i send you a pm with email
h, can you send me the link please?
Update On Issue
damond said:
h, can you send me the link please?
Click to expand...
Click to collapse
As per our discussion over the email. I hope your issue is resolved. If not let me know.
Thanks
Shubhendu Shubham Sharma said:
Bro plz help me.
I've flashed cn beta on global bs2 and now i can't receive ota.
I want joy ui cn with working ota on my device.
*Sry 4 my bad English.
Click to expand...
Click to collapse
Mohit 22 said:
Shubhendu Shubham Sharma said:
Bro plz help me.
I've flashed cn beta on global bs2 and now i can't receive ota.
I want joy ui cn with working ota on my device.
*Sry 4 my bad English.
Click to expand...
Click to collapse
Hi Mohit, is your bootloader still unlocked. Confirm
Click to expand...
Click to collapse
Shubhendu Shubham Sharma said:
Hi, @damond share your mobile device model (is it shark 2 pro or shark) also let me know if these commands are working in your fastboot mode, fastboot devices
fastboot reboot bootloader
fastboot reboot recovery (this will lead you to phone recovery mode try formatting through this, it works always) if it doesn't, confirm.
Also, share the your device origin (like it was on global rom or CN rom) and if bootloader is unlocked or not.
If required, will create a fastboot rom for your device.
Thanks
---------- Post added at 10:07 AM ---------- Previous post was at 09:55 AM ----------
Hi, @damond share your mobile device model (is it shark 2 pro or shark) also let me know if these commands are working in your fastboot mode, fastboot devices
fastboot reboot bootloader
fastboot reboot recovery (this will lead you to phone recovery mode try formatting through this, it works always) if it doesn't, confirm.
Also, share the your device origin (like it was on global rom or CN rom) and if bootloader is unlocked or not.
If required, will create a fastboot rom for your device.
Thanks
Click to expand...
Click to collapse
Sorrys I work for 16h. My model is BS2, no PRO.
now I am going to test the commands that you have recommended me to use. Thanks, when I try them I comment on the result ^^
sorry i got confused from post.
yesterday I started a topic with a similar problem and I thought it was my post. I think some moderator deleted it because I can't find it. I just created another post with my case
Dude what issue you are facing please explain in detail. I am here to help .
damond said:
C:\adb>Fastboot reboot recovery.
fastboot: usage: unknown reboot target recovery.
C:\adb>Fastboot reboot recovery
Rebooting into recovery OKAY [ 0.000s]
Finished. Total time: 0.000s
C:\adb>
But the phone does not enter recovery mode, it goes black and then black shark logo, it looks like there is no recovery partition.
Click to expand...
Click to collapse
it happens the same to me. it does not restart me in recoveri mode.
Yesterday I don't remember how, but I managed to get into recovery mode. I only had 3 options. I remember making wipes and deleting the data but the mobile remained the same
Deke79 said:
it happens the same to me. it does not restart me in recoveri mode.
Yesterday I don't remember how, but I managed to get into recovery mode. I only had 3 options. I remember making wipes and deleting the data but the mobile remained the same
Click to expand...
Click to collapse
Hi deke what issue are you facing. Please help me with that, will try to resolve.
hi, I'm trying to root my p9 lite to use it to run a 3d printing server ( https://github.com/d4rk50ul1/klipper-on-android )
I tried some rooting apps but it was unsuccesful.
after researching I used potatoNV to change the bootloader code
and SKR Tools to unlock bootloader and install twrp but i couldn't acces twrp via the phone. i locked back the bootloader with skr tools and now i can't get back to android, the phone is stuck on the " your device has been unlocked and can't be trusted. your device is booting now... " page, i left it like this for the nignt and it's not booting. I can't turn it off, My pc is not seeing it when pluged and I unpluged the battery for ten minutes but it's doing the same after replugging it .
what can i do to repair, root and use it ?
KilianBLRD said:
i locked back the bootloader with skr tools and now i can't get back to android,
Click to expand...
Click to collapse
you can relock bootloader only on clean stock firmware. If you did this on a modded system (TWRP installed etc.) you probably bricked the phone.
-Alf- said:
you can relock bootloader only on clean stock firmware. If you did this on a modded system (TWRP installed etc.) you probably bricked the phone.
Click to expand...
Click to collapse
what does this mean and what can i do ?
KilianBLRD said:
what does this mean and what can i do ?
Click to expand...
Click to collapse
A. Try your luck with testpoint & board software (check unfamiliar terminology by google or xda.
The instructions do not perform, if you do not know what you're doing.)
B. Use "DC-Phoenix" (paid service) .
-Alf- said:
A. Try your luck with testpoint & board software (check unfamiliar terminology by google or xda.
The instructions do not perform, if you do not know what you're doing.)
B. Use "DC-Phoenix" (paid service) .
Click to expand...
Click to collapse
I'm new to that, can you eplain a bit more please ?
Try to connect phone to PC in fastboot mode, run commands:
in fastboot mode run commands :
fastboot oem get-build-number
fastboot oem get-product-model
fastboot getvar vendorcountry
fastboot oem oeminforead-CUSTOM_VERSION
fastboot oem oeminforead-SYSTEM_VERSION
and post the results.
Some might fail, so don't worry about it.
-Alf- said:
Try to connect phone to PC in fastboot mode, run commands:
in fastboot mode run commands :
fastboot oem get-build-number
fastboot oem get-product-model
fastboot getvar vendorcountry
fastboot oem oeminforead-CUSTOM_VERSION
fastboot oem oeminforead-SYSTEM_VERSION
and post the results.
Some might fail, so don't worry about it.
Click to expand...
Click to collapse
my pc is not seeing the phone
Maybe it's brick when you try to relock but it's still bootloader unlocked Don't worry
You can fix it with 4 method
1. Flashing with board firmware
2.fastboot flashing method
3.sd card upgrade method
4.usb upgrade method
KilianBLRD said:
my pc is not seeing the phone
Click to expand...
Click to collapse
i know but try the following:
press and hold the Power + Vol Down buttons for at least 10 sec and when the screen turns off, connect the USB cable to the phone.
-Alf- said:
i know but try the following:
press and hold the Power + Vol Down buttons for at least 10 sec and when the screen turns off, connect the USB cable to the phone.
Click to expand...
Click to collapse
What should I do next ?
KilianBLRD said:
What should I do next ?
Click to expand...
Click to collapse
https://forum.xda-developers.com/t/need-help-to-root.4571641/post-88366105
-Alf- said:
https://forum.xda-developers.com/t/need-help-to-root.4571641/post-88366105
Click to expand...
Click to collapse
But fastboot mode is not working
KilianBLRD said:
But fastboot mode is not working
Click to expand...
Click to collapse
Do I really have to repeat everything twice???
https://forum.xda-developers.com/t/need-help-to-root.4571641/post-88366083
Good luck!
-Alf- said:
Try to connect phone to PC in fastboot mode, run commands:
in fastboot mode run commands :
fastboot oem get-build-number
fastboot oem get-product-model
fastboot getvar vendorcountry
fastboot oem oeminforead-CUSTOM_VERSION
fastboot oem oeminforead-SYSTEM_VERSION
and post the results.
Some might fail, so don't worry about it.
Click to expand...
Click to collapse
it says waiting for device and nothing happen
KilianBLRD said:
it says waiting for device and nothing happen
Click to expand...
Click to collapse
to check that the connection to the computer in fastboot mode is established normally, type the command
fastboot devices
,the serial number of the phone should be displayed.
If not, you're not in fastboot mode.