Database Develop

Unlocking bootloader help

Hello,
I tried to unlock my bootloader several times.I followed every guide and didn't make it.I have LBL xperia sp (Allowed bootloader unlocking :No)But i read i can try it anyway.So the problem here is when i start cmd in abd folder and enter command fastboot -i 0x0fce oem unlock 0xmykey it says waiting for device.I installed drivers from the guide.Because i have windows 10 i disabled driver signature and all driver are installed.I tried all ports on my laptop and volume up,down.It just wont enter fastboot skips to sony logo immediately.Recovery is working fine.
Now i don't know is it because i have (Allowed bootloader unlocking :No) or i am doing something wrong,also i tried with 4.3,4.4 and 5.0 android versions.
I searched for this problem on xda forums but couldn't find any help.
Thanks.

3m1r said:
Hello,
I tried to unlock my bootloader several times.I followed every guide and didn't make it.I have LBL xperia sp (Allowed bootloader unlocking :No)But i read i can try it anyway.So the problem here is when i start cmd in abd folder and enter command fastboot -i 0x0fce oem unlock 0xmykey it says waiting for device.I installed drivers from the guide.Because i have windows 10 i disabled driver signature and all driver are installed.I tried all ports on my laptop and volume up,down.It just wont enter fastboot skips to sony logo immediately.Recovery is working fine.
Now i don't know is it because i have (Allowed bootloader unlocking :No) or i am doing something wrong,also i tried with 4.3,4.4 and 5.0 android versions.
I searched for this problem on xda forums but couldn't find any help.
Thanks.
Click to expand...
Click to collapse
Your unlocking bootloader allow is no.
You cannot unlock your bootloader.

That is sad,thanks anyway.

3m1r said:
That is sad,thanks anyway.
Click to expand...
Click to collapse
Can you check if your bootloader can really be unlocked? Back on stock ROM, open Dialer, then type in *#*#SERVICE#*#* and report your "bootloader unlock allowed" status.

"Allowed bootloader unlocking : No" But i read somewhere i can still try to unlock it.

3m1r said:
"Allowed bootloader unlocking : No" But i read somewhere i can still try to unlock it.
Click to expand...
Click to collapse
Please don't try any methods, for your device's safety.

Xperia Z3+ Dual SIM, can't unlock the bootloader

Hello please can you help me.
I tried to unlock the bootloader from my Xperia Z3+ Dual, but when i run the command "fastboot -i 0x0fce oem unlock "unlock key" i get the message
"Failed (remote: Command not allowed)"
This happens under Ubuntu and under Windows 10 with both Unlock Keys for slot1 IMEI or Slot2 IMEI .

bottloader unlock allowed : change from no to yes
i got the information that on my phone the bootloader unlock has the value no.
Does anyone know how to set the value to yes?

joebusch67 said:
i got the information that on my phone the bootloader unlock has the value no.
Does anyone know how to set the value to yes?
Click to expand...
Click to collapse
It's simple just go into security and disable Xperia Protection and reboot the phone and let it boot. Then try the fastboot thing. Or else use flashtool to clean wipe and flash a stock ROM. Then try the above steps.

Bootloader Unlock
njaya95 said:
It's simple just go into security and disable Xperia Protection and reboot the phone and let it boot. Then try the fastboot thing. Or else use flashtool to clean wipe and flash a stock ROM. Then try the above steps.
Click to expand...
Click to collapse
That worked, thank you very much.

joebusch67 said:
That worked, thank you very much.
Click to expand...
Click to collapse
You're very welcome, glad I could help. :fingers-crossed:

Unable to Relock Bootloader - Please Help!

So recently I tried rooting my xperia xp and it has failed horribly. I managed to unlock my bootloader and install twrp recovery but after doing so my phone could not reboot into system without running into a bootloop. I've tried to perform a software repair on my phone with the xperia companion, but as you know my bootloader is unlocked at the moment so that couldn't help me.
The issue with relocking here is that when I enter "./fastboot oem lock" on my terminal it replies as:
"FAILED (remote: unknown command)"
I really do not want to have to purchase a new phone just because of the bootloader, it'd be so so appreciated if somebody could help me out here

Also
I'd also like point out that I've also tried the other two commands I could find:
"./fastboot oem relock" and "./fastboot flashing lock"

There are two ways to relock bootloader:
1. Restore TA partition
2.Use Flashtool to relock
But if you encounter a bootloop after unlocking bootloader, try flash Magisk first.

Sony Xperia XZ Premium (single sim, G8141) owner here.
Is there really no way to relock the bootloader?
I don't have a TA backup. I have flashed a completely stock ROM with flashtool (Emma), I just want to relock a bootloader for a warranty claim (purely hardware, faulty USB connector, took me 20 minutes to get the computer to recognize it, at this point it won't even charge most of the time).
I have tried fastboot oem relock command even with the USB vendor ID that I also had to specify when unlocking it in the first place. New flashtool (Emma) does not seem to have any option to relock (or even unlock) BL, nor does it display any information about it. Old flashtool says TA read fail and that my bootloader cannot be relocked.
The boot screen tells me to please lock my bootloader so I'm assuming there must be a way, I just haven't found it yet.

[Guides]Downgrade from android 11 to 10

Part1:Unlock Bootlaoder
step1: download and install Rescue and Smart Assistant Tool
https://www.motorola.com/us/rescue-and-smart-assistant/p
step2: download and install USB drivers
https://motorola-global-portal.custhelp.com/app/answers/prod_answer_detail/a_id/88481/
step3: download Attachments"cmd-here.zip",unzip to Rescue and Smart Assistant fold
step4:Settings phone: System > Developer Options.
Enable OEM Unlocking and also enable USB Debugging,then switch off your device.
Put device in fastboot mode (power off, then press the power and volume down buttons simultaneously).
Connect phone to PC with USB cable,then waiting PC automaticly install phone driver.
step5:go to Motorola unlock page,then complete thine page steps. Use "cmd-here"open CMD to type command
https://motorola-global-portal.custhelp.com/app/standalone/bootloader/unlock-your-device-a
You will get unlock code in your mailbox finally.
step6:type fastboot oem unlock 'your code'
The process will wipe all the data off your phone and reboot.
Part2:TWRP for Motorola Moto Edge
step7:go to TWRP for Motorola Moto Edge page,choose and download .zip and .img.
https://twrp.me/motorola/motorolamotoedge.html
Please follow "Installation" steps to flash TWRP in this page.
Part3:download Official firmware
step8:Choose the correct android 10 firmware and download
https://mirrors.lolinet.com/firmware/moto/racer/official/
step9:Unzip the file,then step by step to execute these commands：
fastboot oem fb_mode_set
fastboot flash partition gpt.bin
fastboot flash bootloader bootloader.img
fastboot flash vbmeta vbmeta.img
fastboot flash radio radio.img
fastboot flash logo logo.bin
fastboot flash boot boot.img
fastboot flash dtbo dtbo.img
fastboot flash recovery recovery.img
fastboot flash super super.img_sparsechunk.0
fastboot flash super super.img_sparsechunk.1
fastboot flash super super.img_sparsechunk.2
fastboot flash super super.img_sparsechunk.3
fastboot flash super super.img_sparsechunk.4
fastboot flash super super.img_sparsechunk.5
fastboot flash super super.img_sparsechunk.6
fastboot flash super super.img_sparsechunk.7
fastboot flash dsp dspso.bin
fastboot flash erase userdata (I get wrong feedback,but no problem)
fastboot flash erase ddr (I get wrong feedback,but no problem)
fastboot oem fb_mode_clear
step10:Reboot devices(If you get wrong feedback same to me,now you can run factry restore after devices reboot on the screen)
Enjoy! the downgrade procedure was successed!​

good afternoon friend !
I have been trying to unlock the bootloader and without success. is only giving this message!
"Your device does not qualify for bootloader unlocking."
what to do? already tried two sites, American and BR. Any solution? i want to go back android 10 .
Thank you very much in advance

_DuuhPro said:
good afternoon friend !
I have been trying to unlock the bootloader and without success. is only giving this message!
"Your device does not qualify for bootloader unlocking."
what to do? already tried two sites, American and BR. Any solution? i want to go back android 10 .
Thank you very much in advance
Click to expand...
Click to collapse
Which cid and channel does it have?
Code:
fastboot getvar cid
fastboot getvar ro.carrier

sd_shadow said:
Which cid and channel does it have?
Code:
fastboot getvar cid
fastboot getvar ro.carrier
Click to expand...
Click to collapse
good night coming home I will see this friend, tell me something please, the android 10 is much better battery / performance ratio?

sd_shadow said:
Which cid and channel does it have?
Code:
fastboot getvar cid
fastboot getvar ro.carrier
Click to expand...
Click to collapse
Here are the infos you asked for, if I could help I would be very grateful, thank you !!
0000000000000000#30303637343833373031006D6F746F726F6C0000#319265AB6EA044F1802F74495C19E6B6B859F4DB#714CAE65000000000000000000000000
cid: 0x0000
ro.carrier: unknown

sd_shadow said:
Which cid and channel does it have?
Code:
fastboot getvar cid
fastboot getvar ro.carrier
Click to expand...
Click to collapse
Hey brother ?

_DuuhPro said:
good afternoon friend !
I have been trying to unlock the bootloader and without success. is only giving this message!
"Your device does not qualify for bootloader unlocking."
what to do? already tried two sites, American and BR. Any solution? i want to go back android 10 .
Thank you very much in advance
Click to expand...
Click to collapse
check you already turn on OEM unlocking in Developer options

Vger20192019 said:
check you already turn on OEM unlocking in Developer options
Click to expand...
Click to collapse
Yes started !!!
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"lightbox_share": "Share",
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Vger20192019 said:
check you already turn on OEM unlocking in Developer options
Click to expand...
Click to collapse
hey broo!! any tips to help me friend? i'm dying to go back android 10!!!
?

_DuuhPro said:
Here are the infos you asked for, if I could help I would be very grateful, thank you !!
0000000000000000#30303637343833373031006D6F746F726F6C0000#319265AB6EA044F1802F74495C19E6B6B859F4DB#714CAE65000000000000000000000000
cid: 0x0000
ro.carrier: unknown
Click to expand...
Click to collapse
The problem is your device is not providing the correct info, the first part should not be all zeros.
try reflashing firmware with LMSA.

sd_shadow said:
The problem is your device is not providing the correct info, the first part should not be all zeros.
try reflashing firmware with LMSA.
Click to expand...
Click to collapse
good night my friend , the software really had a pending att , I did it through the LMSA , but the same code still remained . what can we be doing?? to give up??
now it is up to date.
RPDS31.Q4U-39-26-14-3
October Security Patch

If Motorola unlock page show "Your device does not qualify for bootloader unlocking",that means you need give up.
By the way if you just downgrade to 10 with official ROM,you just do it！No need unlock phone（in my experience with downgrade huawei P10）

Vger20192019 said:
If Motorola unlock page show "Your device does not qualify for bootloader unlocking",that means you need give up.
By the way if you just downgrade to 10 with official ROM,you just do it！No need unlock phone（in my experience with downgrade huawei P10）
Click to expand...
Click to collapse
No Motorola devices cannot be downgraded from one android version to another.

sd_shadow said:
No Motorola devices cannot be downgraded from one android version to another.
Click to expand...
Click to collapse
You'll have to make my phone aware of this limitation.

Can't downgrade EMUI from 9.1.0 to 8.0.0

Hello,
I got a Honor 9 lite from a relative, it is not relevant but I changed te battery and the screen. This device is slow, therefore I wish to install a custom ROM(as in LineageOS) on it.
The issue is that the first step, from what I understand, is that I need to downgrade it to 8.0.0. The issue is that at each attempt I get a "software update failed", or when the device is plugged to my laptop, it get stuck at 5% before booting back.
Guide don't really lead my anywhere, therefore I need help to figure out :
How to downgrade
How to unlock the bootloader
insstall TWRP (I sould be able to handle it from there)
I tanks you in advance for the help.

TabbyChii said:
Hello,
I got a Honor 9 lite from a relative, it is not relevant but I changed te battery and the screen. This device is slow, therefore I wish to install a custom ROM(as in LineageOS) on it.
The issue is that the first step, from what I understand, is that I need to downgrade it to 8.0.0. The issue is that at each attempt I get a "software update failed", or when the device is plugged to my laptop, it get stuck at 5% before booting back.
Guide don't really lead my anywhere, therefore I need help to figure out :
How to downgrade
How to unlock the bootloader
insstall TWRP (I sould be able to handle it from there)
I tanks you in advance for the help.
Click to expand...
Click to collapse
1. Now, its impossible to downgrade it officially bcoz huawei removed this feature from his hisuite software.
you have to take help from third party developers. But i tried those roms they were not most stable and most of the apps were crashing while changing tasks.
2. If you want to unlock bootloader you need to unlock FRP first. You can do this by short circuiting testpoint and circuit board. Also try to get help from google and youtube.
You will also need software like potato nv for changing bootloader code after unlocking frp and during frp unlock.
3. Using fastboot cmd you can unlock bootloader and flash twrp.
4. If your phone is slow. Then try to install magisk and then overclock your cpu and gpu.
This will help for faster experience
I will sooner upload a video on youtube on which i will explain and demostrate you for this topic
that video will cover all this topic. Including practically

Thanks for the answers, I can't usually trust most of the google front pages.

TabbyChii said:
Thanks for the answers, I can't usually trust most of the google front pages.
Click to expand...
Click to collapse
dont worry i will make video on this topic in 2 to 3 days
and its my honour dont mention.
If you have any query you can directly email me on [email protected]

TabbyChii said:
Hello,
I got a Honor 9 lite from a relative, it is not relevant but I changed te battery and the screen. This device is slow, therefore I wish to install a custom ROM(as in LineageOS) on it.
The issue is that the first step, from what I understand, is that I need to downgrade it to 8.0.0. The issue is that at each attempt I get a "software update failed", or when the device is plugged to my laptop, it get stuck at 5% before booting back.
Guide don't really lead my anywhere, therefore I need help to figure out :
How to downgrade
How to unlock the bootloader
insstall TWRP (I sould be able to handle it from there)
I tanks you in advance for the help.
Click to expand...
Click to collapse
1. You can downgrade to Oreo via HiSuite. If the rollback option is not available with your HiSuite ("switch to the older version" or "Earlier version"), you must downgrade to the lower (first) 9.1.0 build version number doing the dload method (flashing Service ROM ) and try again with HiSuite. sometimes better results are with the Chinese version:
Link
2. A) using HCU-client or DC-unlocker (you have downgrade to Oreo build number with google patch april-june 2018 via dload method)
B) for free (that can be done on 9.1.0 ) using potatonv method, Guide
in both cases, you will get an BL unlock code.
How to unlock:
- In Developer options in your phone enable OEM unlock option (with this setting you will get "FRP unlock" status in fastboot mode, it's very important).
- Connect your phone in fastboot mode to the PC and run command
fastboot oem unlock xxxxYour_Codexxx
fastboot reboot
3) Download TWRP
Link
- in fastboot mode run command
fastboot flash recovery_ramdisk xxTWRP'sNamexx.img
(e.g. fastboot flash recovery_ramdisk TWRP-9.1.img)
fastboot reboot
Done.

kjsays12 said:
Now, its impossible to downgrade it officially bcoz huawei removed this feature from his hisuite software.
Click to expand...
Click to collapse
kjsays12 said:
you want to unlock bootloader you need to unlock FRP first. You can do this by short circuiting testpoint and circuit board. Also try to get help from google and youtube.
Click to expand...
Click to collapse
don't write nonsense bro

-Alf- said:
don't write nonsense bro
Click to expand...
Click to collapse
Exactly.

-Alf- said:
1. You can downgrade to Oreo via HiSuite. If the rollback option is not available with your HiSuite ("switch to the older version" or "Earlier version"), you must downgrade to the lower (first) 9.1.0 build version number doing the dload method (flashing Service ROM ) and try again with HiSuite. sometimes better results are with the Chinese version:
Link
2. A) using HCU-client or DC-unlocker (you have downgrade to Oreo build number with google patch april-june 2018 via dload method)
B) for free (that can be done on 9.1.0 ) using potatonv method, Guide
in both cases, you will get an BL unlock code.
How to unlock:
- In Developer options in your phone enable OEM unlock option (with this setting you will get "FRP unlock" status in fastboot mode, it's very important).
- Connect your phone in fastboot mode to the PC and run command
fastboot oem unlock xxxxYour_Codexxx
fastboot reboot
3) Download TWRP
Link
- in fastboot mode run command
fastboot flash recovery_ramdisk xxTWRP'sNamexx.img
(e.g. fastboot flash recovery_ramdisk TWRP-9.1.img)
fastboot reboot
Done.
Click to expand...
Click to collapse
HiShuit does not recogise my device (LLD-L31), EMUI is still 9.1.0.
But I can try to dload with the chinese ersion you provided because I can't do so with the EU version. I will try this out now to see if ti work.

TabbyChii said:
HiShuit does not recogise my device
Click to expand...
Click to collapse
Then there is some problem with the phone or you are doing something wrong.

-Alf- said:
Then there is some problem with the phone or you are doing something wrong.
Click to expand...
Click to collapse
Maybe a missing driver
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"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
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TabbyChii said:
Maybe a missing driverView attachment 5863687
Click to expand...
Click to collapse
this error appears on Windows 11, afaik. Sometimes it helps to install the full Microsoft Visual C++ (2005-2022) package.

-Alf- said:
this error appears on Windows 11, afaik. Sometimes it helps to install the full Microsoft Visual C++ (2005-2022) package.
Click to expand...
Click to collapse
No success.
Is there a precise version of 9.1.0 I need to dload? Or any of them good?

TabbyChii said:
No success.
Is there a precise version of 9.1.0 I need to dload? Or any of them good?
Click to expand...
Click to collapse
What is your region? (Cxxx in build number). Do you mean the version to downgrade via HiSuite?

nah, downgrade to 9.1.0 from the sd card.
Build number is : 9.1.0.149(C432E6RR1P4)

TabbyChii said:
nah, downgrade to 9.1.0
Click to expand...
Click to collapse
I don't understand what you want...

-Alf- said:
I don't understand what you want...
Click to expand...
Click to collapse
~~I am bad at this~~
I am trying to use the forced update method by putting the dload folder in an SD card to downgrade EMUI.
From what I understand downgrading the firmware is the first step.

TabbyChii said:
~~I am bad at this~~
I am trying to use the forced update method by putting the dload folder in an SD card to downgrade EMUI.
From what I understand downgrading the firmware is the first step.
Click to expand...
Click to collapse
Already able to connect to HiSuite? That's the first step.
The lowest free FW version is .140
Link

I will need to first downgrade to this thdn. Hopefully HiSuite will cooperate.
Also weird is that HiSuite has no issues detecting my Samsung phone.
Maybe I need to install something on the LLD-L31

TabbyChii said:
I will need to first downgrade to this thdn. Hopefully HiSuite will cooperate.
Also weird is that HiSuite has no issues detecting my Samsung phone.
Maybe I need to install something on the LLD-L31
Click to expand...
Click to collapse
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.

fastboot oem get-build-number
Code:
(bootloader) :LLD-L31 9.1.0.149(C432E6R1P4)
fastboot oem get-product-model
Code:
(bootloader) LLD-L31
fastboot getvar vendorcountry
Code:
vendorcountry: hw/eu
fastboot oem oeminforead-CUSTOM_VERSION
Code:
(bootloader) :LLD-L31-CUST 9.1.0.8(C432)
fastboot oem oeminforead-SYSTEM_VERSION
Code:
(bootloader) :LLD-L31 9.1.0.117(C432E4R1P3)