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[Fastboot mode] How to write on a locked Fastboot ?

Hi guys, i have a Meizu MX4 device bricked on initial logo. Bootlooped.
I can activate fastboot menu but if i try to flash something i have a "Security Deny..." error
I suppose bootloader il locked.
How to recover my original recovery partition ?

wolfgart said:
Hi guys, i have a Meizu MX4 device bricked on initial logo. Bootlooped.
I can activate fastboot menu but if i try to flash something i have a "Security Deny..." error
I suppose bootloader il locked.
How to recover my original recovery partition ?
Click to expand...
Click to collapse
Usually locked bootloaders allow you to flash signed images (Ones made by the manufacturer) so I would recommend trying that

i have full dump here with me and just tried to flash Stock recovery.img : fastboot flash recovery recovery.img
but same "security Deny ...errors"

wolfgart said:
Hi guys, i have a Meizu MX4 device bricked on initial logo. Bootlooped.
I can activate fastboot menu but if i try to flash something i have a "Security Deny..." error
I suppose bootloader il locked.
How to recover my original recovery partition ?
Click to expand...
Click to collapse
Same with my meizu mx5 ....
Any body can help us ... ?

Fastboot oem unlock will unlock the device bootloader
Sent from my SM-G355H using XDA Free mobile app

droid_god said:
Fastboot oem unlock will unlock the device bootloader
Sent from my SM-G355H using XDA Free mobile app
Click to expand...
Click to collapse
Please inform how to unlock the meizu bootloader,
Already test by ADB,,, Permision Denied by phone..

Then you have t root your device and then flashing the custom recovery. From main android ui itvself
Sent from my SM-G355H using XDA Free mobile app

adb can't detect mx5 locked device...only fastboot are available . i also got pinned here. mx5 got brick after trying fastboot oem unlock... please dont do that if u haven't.
fastboot oem unlock cmd = will brick mx5 device
fastboot flash boot update.zip = will shown error "permission denied"
fastboot update update.zip = will notify of missing android info.txt and android device info.txt
mediatek flash tools = result will not detect device since phone is locked. and only fast boot available (with minimum permission)
im stuck also... have to wait for meizu releasing the official flash tools or unlock. and also u can just send to meizu service.
surely meizu do a poor jobs to their customers right. we own the device..its up to us to unlock or not.

Unable to flash recovery

I was on Ephemeral Mate 8 | International B180 ROM on my NXT-L29, and everything was ok.
But then I made some mistakes trying to flash a B321 ROM from AL00 and after some faillures it seems I got it installed (or sometinhg like it, as seen on screenshot)
However I lost twrp and root, and I am not able to flash twrp again, because when i try do fastboot flash a twrp img i get a failled message (i think it is writing not allowed)
When on bootloader menu I get 2 messages: Phone Unlocked and FPR Lock (or FPK?)
What does it mean? Do I need to unlock bootloader again? How can I get twrp (or other custom recovery) back on phone?
Any hints would be welcomed
Many thanks

i have the same problem with b180.. i just wanted to start a new thread but found yours... i hope someone can help
Sent from my HUAWEI NXT-AL10 using XDA-Developers mobile app

Hi, sorry for you guys.
so first Try to unlock bootloader again

Posted about this on another thread. If you have FRP locked you need to boot the phone, sign out of Huawei ID and Google ID under Accounts. You may get a notification that this will disable device protection features. Also, under Developer Settings, make sure OEM Unlock is checked. Then reboot to fastboot and it should show FRP unlocked.
Sent from my HUAWEI NXT-L29 using XDA-Developers mobile app

I will give you a real solution... First of all save all your data... Do a factory reset.. After that.. Go to menu and activate usb debugging.. Then dial... *#*#2846579#*#*..select usb connection and than manufacturer mode...NOOWWW connect your phone into fastboot... Flash first the insecure boot image b321 via adb... Then recovery.... Excactly this worked for meee... Plz let me know if it worked....
Sent from my HUAWEI NXT-AL10 using XDA-Developers mobile app

Can't flash .img via adb

So i can't flash .img files like recovery etc. via adb. I get this weird message: remote: command not allowed. I tried locking and unlocking the bootloader, but still same error. Strangely, i can flash stuff via flashify(app) without any problems. I also tried it with the honor multitool. I have the long unlock code.
My phone:
H60-l04
Android 5.1.1
Root access granted
Twrp 2.8.7.0
Sent from my H60-L04 using XDA-Developers mobile app

I'm assuming your bootloader is unlocked because you have TWRP recovery.
You don't flash IMG files with ADB but fastboot mode.

Thats what i meant
Sent from my H60-L04 using XDA-Developers mobile app

BLL-L21: unable to " activate OEM unlok"

Hi,
I need some help please . After upgrading my GR5 2017 to BLL-L21C185B342 (nougat emui.5) I found that the option "activate OEM unlock" from developer's options is erased (written but not accessible). So I can't do anything later without unlocking the bootloader..
Please can you give me some ideas

swiloh said:
Hi,
I need some help please . After upgrading my GR5 2017 to BLL-L21C185B342 (nougat emui.5) I found that the option "activate OEM unlock" from developer's options is erased (written but not accessible). So I can't do anything later without unlocking the bootloader..
Please can you give me some ideas
Click to expand...
Click to collapse
It's a bug maybe . Better rollback to MM.

Where can I get MM rollback files for BLL-L21.. Please

there's no rollback files for bll-l21 yet

Hi guys!
Any news about BLL-L21 rollback files? @edwardola . @SmartDrevil

Probably when it is hidden it means that the bootloader is already unlocked ,when starting the phone do you have message saying that this phone is not trusted or something like that

Yes okbakaka, there is that message

swiloh said:
Yes okbakaka, there is that message
Click to expand...
Click to collapse
SO ITS ALREADY UNLOCKED ,why are you needing activate OEM unlock since its activated by default in case you have unlocked your bootloader

The problem is that I can't flash recovery (twrp 3.1.0) on the fastboot method whithaout enabling OEM and usb debogage options. When I try, this message appears: "failed: remote command not allowed"

swiloh said:
The problem is that I can't flash recovery (twrp 3.1.0) on the fastboot method whithaout enabling OEM and usb debogage options. When I try, this message appears: "failed: remote command not allowed"
Click to expand...
Click to collapse
Dont use fastboot download chinese english root one click and push recovery instead of flashing their img flash the downloaded twrp

Can you give me the Chinese English link please

swiloh said:
Can you give me the Chinese English link please
Click to expand...
Click to collapse
From here https://forum.xda-developers.com/ho...p3-0-2-emui-4-1-one-click-root-built-t3532737

Thanks..i'm trying

Unfortunately, it doesn't work. The device enter into fastboot mode then it was restarted without any modifications okbakaka

swiloh said:
Unfortunately, it doesn't work. The device enter into fastboot mode then it was restarted without any modifications okbakaka
Click to expand...
Click to collapse
Did you download twrp 3.1.0.1 for emui ? With chinese twrp one click tool you click recovery then when choosing file don't take the files you found first just look for what you ve downloaded

swiloh said:
Hi,
I need some help please . After upgrading my GR5 2017 to BLL-L21C185B342 (nougat emui.5) I found that the option "activate OEM unlock" from developer's options is erased (written but not accessible). So I can't do anything later without unlocking the bootloader..
Please can you give me some ideas
Click to expand...
Click to collapse
Relock bootloader then enable oem unlock, again unlock bootloader.

okbakaka said:
Did you download twrp 3.1.0.1 for emui ? With chinese twrp one click tool you click recovery then when choosing file don't take the files you found first just look for what you ve downloaded
Click to expand...
Click to collapse
Yes, that's exactly what I have been trying.. But no luck

mutahharbashir said:
Relock bootloader then enable oem unlock, again unlock bootloader.
Click to expand...
Click to collapse
How can I do that? Without the fastboot command because I tried it and always the same message:"failed: remote command not allowed"

swiloh said:
How can I do that? Without the fastboot command because I tried it and always the same message:"failed: remote command not allowed"
Click to expand...
Click to collapse
You are on nougat or marshmallow?
If marshmallow, then just re flash firmware to relock bootloader.
If nougat then you need paid method, dc-unlocker to relock bootloader
Sent from my HUAWEI MT7-TL10 using XDA-Developers Legacy app

I am on Nougat and I have not a dc-unlocker count . So I should wait for the final Nougat version to be able to re-lock my bootloader?

Stock themes app is gone after relocking bootloader

Hi, yesterday i unlocked my bootloader and flashed TWRP on my Honor 8 (FRD-L09.) And for some weird reason, my phone was soft bricked. When i tried to boot it, i had to go into fastboot mode, and then reboot it. Because of this, i relocked my bootloader and when i did that, i got an error message saying my system is damaged and should be formatted. So i tried formatting it with eRecovery, and it couldn't download the package info. But when i rebooted my device, everything was factory reset, and everything is as normal except for that the stock themes app is completely gone. Does anyone have a fix for this?
Edit: other EMUI apps are also gone, like the clock and calculator.

How did you go about relocking your bootloader?
Sent from my Honor 8 using XDA Labs

ayush rao said:
How did you go about relocking your bootloader?
Sent from my Honor 8 using XDA Labs
Click to expand...
Click to collapse
I used ADB on my computer and typed "fastboot oem relock (unlocking code)" (without quotes.) I got no error messages, and not even when i flashed TWRP, so it's so weird that this happened.

See, you didn't state this in your other thread. Sorry but what you need to do is flash the OS again. Your device won't function correctly because it was not formatted properly. A format WILL NOT erase OEM apps.

Evzonix said:
I used ADB on my computer and typed "fastboot oem relock (unlocking code)" (without quotes.) I got no error messages, and not even when i flashed TWRP, so it's so weird that this happened.
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Click to collapse
Are you currently running TWRP?
Sent from my Honor 8 using XDA Labs