Develop Bugs

[Q] Who can help me? My Z1 Compact is unable to unlock, has failed N times!!

Who can help me? I can not unlock z1 Compact, has failed N times! !
I come from China, I can not unlock the phone, looking again at China forum but could not find a solution, so I came to this forum, hope experts can help me.
When I Flashtool64 BLU when the result is always prompt (FAILED <remote: command did not secceed)
My unlock code is acquired at Sony's official website, has confirmed that there are no errors. Android 4.4.3 software version is 757 Chinese edition.
I do not speak English I translated with Google to write posts do not know the translation is correct, I hope you can understand it! Thank you very much!

Type in phone *#*#7378423#*#* and go to Service Info => Configuration. What does it say under Bootloader unlock allowed? Have you tried with this guide: http://forum.xda-developers.com/showthread.php?t=2440597 (start from step 7 if you already have the key)

zxz0O0 said:
Type in phone *#*#7378423#*#* and go to Service Info => Configuration. What does it say under Bootloader unlock allowed? Have you tried with this guide: http://forum.xda-developers.com/showthread.php?t=2440597 (start from step 7 if you already have the key)
Click to expand...
Click to collapse
First of all thank you very much for helping me
My phone has been previously (unlocked → Lock), (unlocked → lock), conducted two such operations.
When I brush back Chinese version of the 757 has been unable to be unlocked when I was using the latest version of the unlocking Flashtool64
Bootloader unlock allowed: Yes
Every time FAILED <remote: command did not secceed>
FAILED <remote: command did not secceed>
FAILED <remote: command did not secceed>
FAILED <remote: command did not secceed>
I'm going crazy

Maybe try on an older firmware. Or try manual fastboot method as I posted.

[Q] boot loader unlock failed

Hi.
I have been having problems trying to unlock the boot loader on my t2 ultra dual.
I followed the instructions provided by Sony to unlock. I had previously unlocked and relocked the device,i also unlocked and relocked in flashtool.
However now when following instructions again in flashtool by adroxyde I am getting this following errors:
FAILED (remote: Command did not succeed)
And after this,
FAILED (remote: Device is already rooted)
Even though it is not and service menu says,
Boot Loader Unlock Allowed: Yes
Any help is appreciated.
Thanks.

help required
I am having the same problem on my T2 ultra dual, is it due to unlocking and re-locking boot loader by flash tool. Is there a solution for this ? Please help.

i am also facing this problem but now I am fix this problem
Sent from my D5322 using Tapatalk

Please let us know how you fixed it

Open setting in your phone
Then
About phone>status>general
You see your phone serial number
Copy your serial number
And open flashtool folder in your pc
In flastool folder open
Custom >mydevices
In my devices create new folder and rename it and paste your serial number
Now open the folder create new text document file and rename it ulcode
Now open it and put the bootloader unlock code in text document and save it.
Now try to unlock bootloader.
I am also uploaded video on YouTube
Sent from my D5322 using Tapatalk

I tried this but it's not working, same response

bootloader unlock
I was experimenting with bootloader and finally got success. The new folder with device no has to be placed in C>users >(computer name)>flashtool>registered devices >..............
This finally unlocked my bootloader

Bootloader HELP

Hi.
Recently I was interested in making a root for my device- LG G4 H815L(Israely version). So i started to explore about the difrences, and some guys told that there is a difference in the bootloader. BUT when I got my phone into bootloader the next massage was written:" *Welcome to Fastboot Mode for bootloader unlock:
Quick Guidance
1) Read Device ID : fastboot oem device-id
2) Write Unlock Key : fastboot flash unlock unlock.bin
3) Check bootloader is unlocked : fastboot getwar unlocked"
As you see this is a guidance how to unlock the bootloader. Now Im in some dilemma because of it.
My questions are:
1. Can I unlock the bootloader?
2. What happens if i get to hard/soft break because of it (and what is the sulution if you know)?

PIXEL : Unlocking bootloader

Hi,
I had an issue with my Pixel that I reported here : https://forum.xda-developers.com/pixel-xl/help/google-pixel-stuck-fastboot-t3725523
I wanted to do a flash stock ROM with “fastboot” following this official tuto : https://developers.google.com/android/images
The unlock bootloader step return an error “FAILED (remote: oem unlock is not allowed)”, I tried many commands with no success, I know that OEM unlocking
and*USB debugging should be enabled first from android settings, but now I have no access to my settings, stuck in my bootloader !
I don’t know if anyone of you have a tuto or a trick to bypass this step or unlock the bootloader
Please share with me your ideas
Thank you All

Just wanted to tell you that I fixed the problem with a “hair dryer”, the volume button down starts working and I could restart the phone normally.
Thank you for you help

Downgrade from Pie to Oreo without Root and unlocked Bootloader?

Hey guys,
can someone tell me if it's possible to downgrade the stock android pie version to stock oreo without rooting my device or unlock the bootloader?
I read some threads and posts but i'm not sure, because the information is disputed.
So can i flash the old stock android without getting a brick or getting stuck in edl-mode?
Thank you for your answers

Mansil234 said:
Hey guys,
can someone tell me if it's possible to downgrade the stock android pie version to stock oreo without rooting my device or unlock the bootloader?
I read some threads and posts but i'm not sure, because the information is disputed.
So can i flash the old stock android without getting a brick or getting stuck in edl-mode?
Thank you for your answers
Click to expand...
Click to collapse
Hello,
I think that it's not possible without unlocking bootloader. The unique solution is to enter in edl-mode but this is more dangerous than unlock the bootloader. Unlock bootloader is very simple and not dangerous, you are just going to loose all of your data but with a backup this is not a problem.
Root is not necessary for that, if you need help to do your downgrade with bootloader unlocking tell me !
I'm here if you have any question or if you need help !
Pierre

Flashing via EDL Mode only works with unlocked bootloader!
Unlock Bootloader will erasing all data (reset system)!

Pierre_C said:
Hello,
I think that it's not possible without unlocking bootloader. The unique solution is to enter in edl-mode but this is more dangerous than unlock the bootloader. Unlock bootloader is very simple and not dangerous, you are just going to loose all of your data but with a backup this is not a problem.
Root is not necessary for that, if you need help to do your downgrade with bootloader unlocking tell me !
I'm here if you have any question or if you need help !
Pierre
Click to expand...
Click to collapse
Can you send me the links for unlock bootloader and oreo firmware? I can't find them

ᵀᴴᴱK!D ᴼᴿᴵᴳᴵᴻᴬᴸ ツ™ said:
Can you send me the links for unlock bootloader and oreo firmware? I can't find them
Click to expand...
Click to collapse
I don't now the link but I can explain you the process.
/!\ This will erase all of your data !!
1) Enable developer options by going to Settings > About Phone, scroll down to Build number and tap 5-7 times to enable developer option.
2) Once you enabled the Developer Options. Returned back to Settings > Developer Options > USB Debugging and OEM Unlock. Just Enable there options.
At that time you have 2 option, official option and non-official version.
- Official Version,
This method require some days because you have to ask xiaomi to send you an unlock code.
You need Windows it doesn't work on Linux.
1) Go to http://en.miui.com/unlock, click on Unlock button on the webpage now you have to login and then proceed to tap on Download Mi Unlock from the resulting page.
2) Now, proceed to put your Xiaomi Mi A2 Lite into Fastboot mode by powering it on while holding Volume Down and Power buttons simultaneously. Hold until you see your phone is booted into Fastboot mode.
3) After the successful login, the validation process will start on your phone, and for the first time, you will get a message that “You don’t have the permission to Unlock the device”
4) Now click on the “Go” button or use Go to MIUI Unlock page to receive the unlocking permission.
5) Now click on the Unlock Now and log in with your Mi account details and fill all details.
6) You will get OTP for confirmation use it to complete the process.
7) Now wait until your application gets approved, you will receive the OTP password on your phone number once it’s approved.
8) Now Open the Mi Flash tool click on unlock and pass the two pop-up. Your device will be unlocked
Non-Official but simple version :
1) Proceed to put your Xiaomi Mi A2 Lite into Fastboot mode by powering it on while holding Volume Down and Power buttons simultaneously. Hold until you see your phone is booted into Fastboot
mode.
4) Download Miniamal ADB and fastboot in you are on windows, https://forum.xda-developers.com/showthread.php?t=2317790
If you are on linux use
Code:
sudo apt-get install fastboot
Code:
sudo apt-get install adb
3) On Windows in Minimal ADB and fastboot or on Linux on the terminal enter this command
Code:
fastboot oem unlock
4) Your phone will reboot, it's unlock !
PS: Sorry for my bad English
Pierre

PC295 said:
Flashing via EDL Mode only works with unlocked bootloader!
Unlock Bootloader will erasing all data (reset system)!
Click to expand...
Click to collapse
Actually you could avoid the erasing data
When you get in to fastboot mode
hold to volume down button before and write "fastboot oem unlock" code
dont release until phone shows mi logo at the startup