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How to unlock your Xperia device bootloader

Hi bro, i just wanna help those people who wanna unlock their phone bootloader. Why you need to unlock your phone bootloader? To install some custom rom like FreeXperia's CyanogenMod 10, or Custom Kernel. First, all you need is :
1. Rooted phone. See my guide here
2. Have the driver, you can install PdaNet from my guide or Sony Companion
3. Install the flashtool from Androxyde github
YOUR PHONE WARRANTY NOW VOID!
THIS PROCEDURE DOES A FACTORY RESET ON YOUR PHONE. YOUR DATA, MESSAGES, CONTACTS, OR ANY APPLICATIONS WILL BE DELETED, AND IT WILL INSTALL A STOCK ROM LIKE THE FIRST DAY YOU BOUGHT YOUR PHONE. PLEASE MAKE A BACKUP FIRST IN CWM, I DONT OWN ANY BLAME
Make sure your phone is allowed to be unlocked. Here is the guide :
Dial *#*#7378423#*#*, then go to Service info > Configuration > Rooting Status. If the Bootloader Unlock Allowed is yes, you can continue If not, please dont ask me. If you want to unlock your phone, go to your service center
THE UNLOCKING STEPS IS :
1. Dial *#06# and takes a note of your IMEI on notepad or anything. This is needed for our next step
2. After install Flashtool, go to Drivers folder and click on Install-Drivers.exe or something like that. In the steps, you need to install your Xperia XXX (XXX is your phone model), Flashboot driver, and flashmode driver. [If your phone is Miro, select the Tipo driver]
[IF YOU ARE ON WIN7 / WIN8, when you're on booting your pc, push the F8 button, and select Disable Digital Signature]
3. Go to Unlock Bootloader website, and enter your phone IMEI here.
If you got a warning like this, then delete your last IMEI character
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"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",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
4. Open up your mail, and then take a note of the unlock key sent by Sony
5. Without shutdown your phone, plug on your phone to your pc. When the pop up is appear, select Tipo for your Miro
6. Click on Plugins > Bootloader Unlock > Run
7. Enter your unlock code sent by Sony
8. NOW, SHUTDOWN YOUR PHONE. Enter the fastboot mode (Press and hold the volume up button, and plug the cable. When the blue led appear, release the volume button)
9. Now, wait until it completed. Cheers, your phone now unlocked! Check it at *#*#7378423#*#*, If bootloader Unlock is yes, then you are successfully unlocking your phone
10. Enter to your CWM, and restore your data here
Thanks, and dont forget to click THANKS button

FajarMF28 said:
Hi bro, i just wanna help those people who wanna unlock their phone bootloader. Why you need to unlock your phone bootloader? To install some custom rom like FreeXperia's CyanogenMod 10, or Custom Kernel. First, all you need is :
1. Rooted phone. See my guide here
2. Have the driver, you can install PdaNet from my guide or Sony Companion
3. Install the flashtool from Androxyde github
YOUR PHONE WARRANTY NOW VOID!
THIS PROCEDURE DOES A FACTORY RESET ON YOUR PHONE. YOUR DATA, MESSAGES, CONTACTS, OR ANY APPLICATIONS WILL BE DELETED, AND IT WILL INSTALL A STOCK ROM LIKE THE FIRST DAY YOU BOUGHT YOUR PHONE. PLEASE MAKE A BACKUP FIRST IN CWM, I DONT OWN ANY BLAME
Make sure your phone is allowed to be unlocked. Here is the guide :
Dial *#*#7378423#*#*, then go to Service info > Configuration > Rooting Status. If the Bootloader Unlock Allowed is yes, you can continue If not, please dont ask me. If you want to unlock your phone, go to your service center
THE UNLOCKING STEPS IS :
1. Dial *#06# and takes a note of your IMEI on notepad or anything. This is needed for our next step
2. After install Flashtool, go to Drivers folder and click on Install-Drivers.exe or something like that. In the steps, you need to install your Xperia XXX (XXX is your phone model), Flashboot driver, and flashmode driver. [If your phone is Miro, select the Tipo driver]
[IF YOU ARE ON WIN7 / WIN8, when you're on booting your pc, push the F8 button, and select Disable Digital Signature]
3. Go to Unlock Bootloader website, and enter your phone IMEI here.
If you got a warning like this, then delete your last IMEI character
4. Open up your mail, and then take a note of the unlock key sent by Sony
5. Without shutdown your phone, plug on your phone to your pc. When the pop up is appear, select Tipo for your Miro
6. Click on Plugins > Bootloader Unlock > Run
7. Enter your unlock code sent by Sony
8. NOW, SHUTDOWN YOUR PHONE. Enter the fastboot mode (Press and hold the volume up button, and plug the cable. When the blue led appear, release the volume button)
9. Now, wait until it completed. Cheers, your phone now unlocked! Check it at *#*#7378423#*#*, If bootloader Unlock is yes, then you are successfully unlocking your phone
10. Enter to your CWM, and restore your data here
Thanks, and dont forget to click THANKS button
Click to expand...
Click to collapse
i do what u said in steps.boot loader is unlock now but i cant understand 10th step. "Enter to your CWM, and restore your data here" can u explain how to enter to CWM?

Drivers don't install on win8.
Sent from my C1504 using xda app-developers app

krushn said:
i do what u said in steps.boot loader is unlock now but i cant understand 10th step. "Enter to your CWM, and restore your data here" can u explain how to enter to CWM?
Click to expand...
Click to collapse
Hi, sorry for the late reply. You must have already installed CWM/TWRP (choose one). And how to enter CWM/TWRP? Just restart your phone, when the Sony logo is appearing, try to tap the volume down button repeatedly and fast. If you didnt understand, please search it on this forum
AngelousJi said:
Drivers don't install on win8.
Sent from my C1504 using xda app-developers app
Click to expand...
Click to collapse
When you first boot your pc, suddenly press the F8 button, or you can go to Charm menu -> Settings -> Change PC Settings -> go to General -> Scroll down 'till you find Advanced Startup. Then select the one who have "Disable Digital Signature Check of Driver" or something

Nice, but I think it should be in the development forum, and also add a link to a CWM install tutorial.

i think you need to post more info about this
like Bootloder BackUp / ReLock / is that possible / how to do it
Thank You

Why is rooted phone required???
Thank me if I helped you...

namazso said:
Nice, but I think it should be in the development forum, and also add a link to a CWM install tutorial.
Click to expand...
Click to collapse
Okay, so i posted in the wrong section?
Suxter said:
i think you need to post more info about this
like Bootloder BackUp / ReLock / is that possible / how to do it
Thank You
Click to expand...
Click to collapse
Will add it soon if i can connect to the internet using my pc
mathewsj114 said:
Why is rooted phone required???
Thank me if I helped you...
Click to expand...
Click to collapse
Its not required. Its required when you want to backup your data using CWM. if you dont want to, then skip it

FajarMF28 said:
Will add it soon if i can connect to the internet using my pc
Click to expand...
Click to collapse
why still not ?

Suxter said:
why still not ?
Click to expand...
Click to collapse
Coz im using my phone

Root for Xperia E3 D2203 with locked BL

Hello everyone!
At the beggining I really would like to give my regards to:
- @mbc07
- @costel90
- @vinay
and other people from topic http://forum.xda-developers.com/xperia-e3/help/root-locked-bootloader-t3038518 for any help and / or ideas;
- @AndroPlus and japanese developer, キューブキューブ @cubeundcube for posting rootkitXperia ( http://forum.xda-developers.com/showthread.php?t=2559009 )
Great job people - I really appreciate your work for entire community.
Remember - don't bother me, if you do anything wrong and brick your device - you are doing this at your own responsibility.
/ -- /
Let's begin rooting our Xperia E3 D2203! I will show you my way to root:
0. Make backup and load up the battery (at least 60%), download and install flashtool ( http://www.flashtool.net/downloads.php ), download and install Sony PC Companion (to provide drivers)
1. Obtain your firmware's FTF file (easiest way is to use XperiFirm)
and this firmware: http://uploaded.net/file/f1wll17r (it's Xperia M2 JellyBean kernel) ,
and copy them to: %userprofile%\.flashtool\firmwares ( for WinXP %userprofile% leads to c:\documents and settings\username; in Win Vista and laters: to C:\Users\username )
2. Turn off the phone
3. Connect it to USB cable with Vol- tapped. Make sure that all drivers have been installed successfully and disconnect USB (this is one-time step, if you have ever flashed your phone you probably don't need to do this again)
4. Run flashtool, click thunder icon, select flashmode, choose 18.5.C.0.19 firmware and click Flash
{
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"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
5. Connect USB with Vol- tapped when asked by flashtool
6. Wait until flashtool ends flashing (you will see messsages like this:
INFO- Ending flash session
INFO- Flashing finished.
INFO- Please unplug and start your phone)
then disconnect phone from usb, power on and wait to boot
7. Go to menu > settings
8. Go to about phone, tap few times on 'compilation number' to enable programmer settings. Go there, enable mock location (may be not nessesary) and USB Debugging
9.Go to security settings, turn ON unknown sources and turn OFF verify apps
10. Plug in USB to ensure that all drivers are installed properly (especially Sony ADB Interface driver)
11. Download giefroot_debug_D2203_modded.zip file ( https://mega.co.nz/#!sscXQKwB!qOIv2a70SH6UAM8vhySQIeEcYXrkkXXfh_X98q5rdDk ) unzip it and run install.bat
12. IMPORTANT STEP - make sure you allowed permanently to debug from your PC, when window appears
13. giefroot will inform you, that rooting has failed - that's OK - it was only to ensure, that your pc is allowed to debug
14. Now we have our phone prepared. Turn it off.
15. In flashtool click thunder icon, select flashmode
16. Select Kernel from Jelly Bean firmware
17. Connect to USB with vol- tapped and wait for flashtool to finish, disconnect USB
18. Power on your phone - you will see Xperia logo for a 1 seconds or 2, but it disappears and you will see only black display - that's ok - it's expected behavior.
19. Wait about 30 seconds and connect USB - make sure that Windows installs driver for ADB Interface Driver (you can ignore MTP driver prompts)
20. Download rootkitXperia ( https://mega.co.nz/#!Mt1zkAyQ!Z2Wg9xQyNCbPt6ksS-Dw76-ifSb_lGvQbFK7zP0yJ9E ), unzip rootkitXperia_20140719.zip and run install.bat
21. Wait for commands: done root command, wait 10 seconds...
22. When you see rebooting message, disconnect from usb, take out back cover, and push off button with needle. After that turn on the phone,at black screen wait 30 seconds and, after that, plug in USB
23. when rootkitXperia ends, you will see message all finished - turn phone off again with button under the back cover (as in step 22)
24. Now we need to restore D2203 kernel
25. Go to flashtool, thunder icon, flashmode, choose firmware from point 4, but BE CAREFUL! - select all things as this is showed on screenshot below: tick OFF wipe cache, data, tick ON exclude bootbundle, partition, ta, fota, baseband, system, elabel - you should see only two files: kernel.sin and loader.sin in content section
26. Now click flash, connect phone to usb with vol-, wait until flashtool finishes, disconnect usb and turn on the phone
27. When phone boots, connect again usb, go to giefroot_debug_D2203_modded.zip content again and run install2.bat
28. When script ends, update su binary with superSu and reboot You have now root access and RW permissions to / and /system

Yop,
Thank you ! ♥ I will try this.

Unfortunately, after doing every step as it is written, after flashing Xperia M2 kernel, phone just won't boot. Sony logo dissapears after 2 seconds and screen is black for long time and it won't boot at all.
I have D2203 with locked bootloader and not allowed to unlock..

atomicr said:
Unfortunately, after doing every step as it is written, after flashing Xperia M2 kernel, phone just won't boot. Sony logo dissapears after 2 seconds and screen is black for long time and it won't boot at all.
I have D2203 with locked bootloader and not allowed to unlock..
Click to expand...
Click to collapse
It's ok - that is normal, that screen goes black. Just connect usb cable and follow next steps.

nortonex said:
It's ok - that is normal,.
Click to expand...
Click to collapse
Does this method work for D2212 for root with 4.4.4 firmware....

imElectronica said:
Does this method work for D2212 for root with 4.4.4 firmware....
Click to expand...
Click to collapse
It may be possible - but you need to risk and try. Just in points: 4 and 25 use your D2212's FTF instead of D2203.

nortonex said:
It may be possible - but you need to risk and try. Just in points: 4 and 25 use your D2212's FTF instead of D2203.
Click to expand...
Click to collapse
also need a jellybean kernel from d2312 or d2302 varriant of xperia m2
edit
maby it work,s cause we don,t have to boot system.
we have to boot kernel and system with black

Success! Hitted THANKS!

OMG ! Thank for this work ! <3 It's work ! At last ! Thank very very much for the root !

Confirmed on my 2203 with lock bootloader.
I confirm the success with getting Ful Root.
Thanks You.

YESSSSS !
Thanks for all who have work to obtain this, my device is root now.

I will be trying this Out the weekend if I get a chance,
Followed the locked bootloader topics for a while but knew someone would eventually get in!
Good job,
I'll post back with how I get on
Doing this with d2203 4.4.4 with a windows 8 laptop
So hopefully that will be OK
Can then clear some space on the damn phone

Now it is time for Cwm to resolve.
Edit: Can bootloader be unlocked with Flashtool BLU option?
In service menu I have: Bootloader unlock allowed: No
Sent from my D2203

Worked!!!
Success! Hitted THANKS!
Confirmed: In service menu I have: Bootloader unlock allowed: No

atomicr said:
Now it is time for Cwm to resolve.
Edit: Can bootloader be unlocked with Flashtool BLU option?
In service menu I have: Bootloader unlock allowed: No
Sent from my D2203
Click to expand...
Click to collapse
No, can't be unlocked with BLU option.

mathei said:
No, can't be unlocked with BLU option.
Click to expand...
Click to collapse
anybody tried cwm for locked bootloader from xperia m2

Success! i'm using d2212... thanks so much

nortonex said:
It may be possible - but you need to risk and try. Just in points: 4 and 25 use your D2212's FTF instead of D2203.
Click to expand...
Click to collapse
Just in points :4 & 25 means ??

Thanks so much for this! When I found out I couldn't unlock my boot loader I thought I was screwed. Worked perfectly, thanks again.

Thank you SO much for this! Followed the solution to the letter and I have successfully rooted my 'Bootloader Locked Vodafone UK D2203'. It works a charm.

Question Read Flash unbrick unlock bypass FRP & More

Hello Everyone.. here is the Instructions for OnePlus Nord CE 2-
Note:
backup Internal storage, contact message etc before process
In case, even after flashing completed successfully but some time device does not boot, only black screen, no charging sign either then don't panic, device has entered into emergency download mode, if you face the same then it's time to flash preloader.bin file.
1. Reading Firmware from Device
we download Require files USBDK Driver, Mediatek Driver & The Program
We Install both USBDK and Mediatek driver on our computer
disable windows defender and extract Program
Run Program
Select 'Firmware reader' Option and Mark The Full Firmware Option and Click 'Start Button'
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"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",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
turn Phone off, Press Volume up and down key and Insert USB
Reading Process Started. it will take around 15Min, once done we collect Firmware in Out Directory (it will Include nvram too)
unlocking bootloader:
there is a fastboot access issue on this device, you can try exploit method which is located Mediatek/service section...
bypass FRP lock:
From the very first Screen we Select FRP bypass Option and click 'START' Button
turn Phone off press volume up and down key and then insert usb
once done we disconnect device
Flashing Firmware:
we Go to Mediatek/Firmware Flashing Option
Select second Method 'write all partition' locate the firmware folder
click 'flash' button
turn phone off Press Volume up & down key and then inset usb
wait until success. done

Sry for the following stupid questions but:
-) How do I start the program in win64?
-) Can I use this to dump the current android rom of my phone and get boot.img+vbmeta.img thus being able to root the phone using magisk?

trohn_javolta said:
Sry for the following stupid questions but:
-) How do I start the program in win64?
-) Can I use this to dump the current android rom of my phone and get boot.img+vbmeta.img thus being able to root the phone using magisk?
Click to expand...
Click to collapse
Extract zip, run rom2box.exe
yes you can dump current ROM, Mediatek/firmware-reader

mark332 said:
Extract zip, run rom2box.exe
yes you can dump current ROM, Mediatek/firmware-reader
Click to expand...
Click to collapse
Turns out my work laptops antivirus instantly removed the .exe

Does the bootloader need to be locked to get into this preload mode and to dump the rom? I already unlocked it before.
Now if I hold up and down volume and plug in the phone Rom2box says "..handshake failed..". Rebooted after installing mediatek and usbdk drivers and I also tried different usb ports.

trohn_javolta said:
Does the bootloader need to be locked to get into this preload mode and to dump the rom? I already unlocked it before.
Now if I hold up and down volume and plug in the phone Rom2box says "..handshake failed..". Rebooted after installing mediatek and usbdk drivers and I also tried different usb ports.
Click to expand...
Click to collapse
The same story for me, the phone can't be put in preload or download mode or whatever they call it. I know one thing it is my last Oneplus phone if they're all going to be pain in the arse like this one. I guess it's back to my old 6t for another while then.

Accessing it by way of Recovery mode is also broken. To try it yourself, boot in to Recovery, connect your phone to your computer with usb-c cable. Multi-tap version number, it will eventually ask you if you want download mode and you click yes. It will attempt reboot into download mode, fail and then will `normal` boot phone.

trohn_javolta said:
Turns out my work laptops antivirus instantly removed the .exe
Click to expand...
Click to collapse
fixed a clean version + code available in public https://forum.xda-developers.com/t/tool-rom2box-all-in-one-frp-flashing-unlocking-tool.4477349/

Hi, I just tried ROM2box 2.5. I got five of these messages then kicked into recovery `Preloader - [LIB]: [31mStatus: Handshake failed, retrying...[0m`

Quaicheist said:
Hi, I just tried ROM2box 2.5. I got five of these messages then kicked into recovery `Preloader - [LIB]: [31mStatus: Handshake failed, retrying...[0m`
Click to expand...
Click to collapse
connect in Proper way= install Latest usbdk and mtk driver, start process turn Phone off press volume up & down key and then Insert USB, once the Phone is detected release keys

Thanks for the info, though I have been doing that setup all along. I dual windoze and Linux. My windows is a custom minimal version of windows 10 with feck all on it. I upgraded this phone to stock 12 beta yesterday and ROM2Box for a wonder is happily doing a dump of that. It should be interesting when I downgrade to stock 11 and try to do a dump of that.

@mark332 thanks for the advice, phone happily did dump with the OxygenOS 12 Open Beta 1 but refused point blank to do a dump with OxygenOS 11 Build number: IV2201_11_A13. Is there any difference in your phone setup to my own - bootloader unlocked?

Quaicheist said:
@mark332 thanks for the advice, phone happily did dump with the OxygenOS 12 Open Beta 1 but refused point blank to do a dump with OxygenOS 11 Build number: IV2201_11_A13. Is there any difference in your phone setup to my own - bootloader unlocked?
Click to expand...
Click to collapse
Nice, May be BROM is disabled on stable version so you are not able to dump OxygenOS 11

mark332 said:
Nice, May be BROM is disabled on stable version so you are not able to dump OxygenOS 11
Click to expand...
Click to collapse
Hi @mark332, sorry I wasn't able to get to you sooner about this. Coredump was only possible with OxygenOS 12.1 beta, BROM was definitely locked down in 11. I succeeded with 12 but 'out' folder looks incomplete, files like ''preloader' which is in the beta package are missing from the dump. I don't think I would be able return to stock with ROM2box, maybe manually with fastboot commands.

Well downgrading this phone from OxygenOS 12 beta 1 to OxygenOS 11 has left it without a working touch screen in the normal mode or recovery so it is now a dust collector unless Oneplus / Oppo are willing to fix it.

Quaicheist said:
Well downgrading this phone from OxygenOS 12 beta 1 to OxygenOS 11 has left it without a working touch screen in the normal mode or recovery so it is now a dust collector unless Oneplus / Oppo are willing to fix it.
Click to expand...
Click to collapse
I'm just curious how did you downgrade?

mark332 said:
Nice, May be BROM is disabled on stable version so you are not able to dump OxygenOS 11
Click to expand...
Click to collapse
Brom is enabled on A11 I've reflashed my device recovery partition when i was stuck

ko_hi said:
I'm just curious how did you downgrade?
Click to expand...
Click to collapse
I guess I used OnePlus's rollback guide once too often besides it is a beta, I was bound to get bitten in the arse evenually; https://community.oneplus.com/thread?id=1110424001643544581

Quaicheist said:
I guess I used OnePlus's rollback guide once too often besides it is a beta, I was bound to get bitten in the arse evenually; https://community.oneplus.com/thread?id=1110424001643544581
Click to expand...
Click to collapse
I guess if BROM mode works, use the bypass method to flash back to A11.v

Ah you see, the fecking phone managed to rollback to 11 but the touch screen driver is broken I guess. Physical buttons work but touch is broken. So I have contacted Oneplus tech support so we'll see what response I get tomorrow.

Trouble Unlocking Bootloader

I am having hard time unlocking my Poco F1's bootloader, to start installing custom ROMs.
The phone's responding and is compatible with adb commands, in stock ROM and as well as in recovery. But in fastboot mode, it's having issues.
When phone is in fastboot mode and connected with the PC, it recognises the device and has a phone serial number in place when running the fastboot devices command. Just after 2-3 seconds of connection, the fastboot devices command holds for a while and returns multiple question marks(???????) in the place of device serial number.
I have tried switching PCs and changing USB cable and still same error. I am yet to try in on Windows 7, but have tried it on Windows 10 and 11. All gave same issues. Some PC don't even detect the device and the phone charges only. I have made sure the correct bootloader drivers are installed in Device Manager every time too.
The Mi Unlock tool says there is no device connected due to this. It is annoying me to the point that I have even tried using a 2.0 USB extension cable to see if it works. I would have tried with a USB 2.0 hub but I sadly don't own one and I don't want to buy it just for this.
Any insights or help will be of great help, thanks in advance.

If you think you have followed all the steps correctly, I suggest you read this article that I read yesterday. I had read that some models, including the Pocophone f1, use a special security.
Xiaomi's Anti-Rollback Protection Explained: How to avoid bricking your phone
All Xiaomi smartphones and tablets will have anti-rollback protection enabled. What is it and how do you avoid bricking your device because of it?
www.xda-developers.com
If the problem you are experiencing is not caused by what is described in this article, I suggest that you double-check the steps you have followed.I had a similar problem before and solved the problem using the driver installation option in the mi flash application.

canero said:
If you think you have followed all the steps correctly, I suggest you read this article that I read yesterday. I had read that some models, including the Pocophone f1, use a special security.
Xiaomi's Anti-Rollback Protection Explained: How to avoid bricking your phone
All Xiaomi smartphones and tablets will have anti-rollback protection enabled. What is it and how do you avoid bricking your device because of it?
www.xda-developers.com
If the problem you are experiencing is not caused by what is described in this article, I suggest that you double-check the steps you have followed.I had a similar problem before and solved the problem using the driver installation option in the mi flash application.
Click to expand...
Click to collapse
Thanks for responding, I will take a look at the article once.
I have made sure that all steps were followed correctly and I think everything was in order. I have already made sure correct drivers were installed multiple times.
What's weird with my device is that, unlike other Poco F1 devices this one in particular does not have any OTG option in settings, I don't know if it's a software or a hardware issue. The device is on MIUI 12.0.3 Stable(QEJMIXM).

OTG option? OTG is not the traditional adapter that we use to insert a usb stick into the phone? are there some parts that I know are missing, please inform me

Bhavik479 said:
I am having hard time unlocking my Poco F1's bootloader, to start installing custom ROMs.
The phone's responding and is compatible with adb commands, in stock ROM and as well as in recovery. But in fastboot mode, it's having issues.
When phone is in fastboot mode and connected with the PC, it recognises the device and has a phone serial number in place when running the fastboot devices command. Just after 2-3 seconds of connection, the fastboot devices command holds for a while and returns multiple question marks(???????) in the place of device serial number.
I have tried switching PCs and changing USB cable and still same error. I am yet to try in on Windows 7, but have tried it on Windows 10 and 11. All gave same issues. Some PC don't even detect the device and the phone charges only. I have made sure the correct bootloader drivers are installed in Device Manager every time too.
The Mi Unlock tool says there is no device connected due to this. It is annoying me to the point that I have even tried using a 2.0 USB extension cable to see if it works. I would have tried with a USB 2.0 hub but I sadly don't own one and I don't want to buy it just for this.
Any insights or help will be of great help, thanks in advance.
Click to expand...
Click to collapse
I read the article again and I want to ask a part that stuck in my mind. Do you not use the unlock software to unlock the bootloader? As far as I know, it is not possible to perform this operation with ADB commands.

canero said:
I read the article again and I want to ask a part that stuck in my mind. Do you not use the unlock software to unlock the bootloader? As far as I know, it is not possible to perform this operation with ADB commands.
Click to expand...
Click to collapse
Kindly read my original post again, I do use the Mi Unlock tool and do connect the phone via Fastboot/Bootloader mode.

I think we can solve this problem, only my ability to speak English makes it difficult for me sometimes. If you want, let's try again step by step, you can call me on Instagram for this? my instagram account name: canerorak_

hello my friend. I solved this problem for you personally. Follow the steps in screenshots
After step 2, I restart the phone without disconnecting the usb.Then I activate usb debugging mode.After entering fastboot mode, I open the mi unlock application and repeat the step in the images.If you encounter the warning I mentioned in step 2 again, press and hold the volume down + power button for 10 seconds and enter fast mode again. That's all.The unlock button has become active. Now the system recognizes my device because I have installed the drivers required for fastboot
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"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",
"lightbox_toggle_sidebar": "Toggle sidebar"
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canero said:
hello my friend. I solved this problem for you personally. Follow the steps in screenshots
After step 2, I restart the phone without disconnecting the usb.Then I activate usb debugging mode.After entering fastboot mode, I open the mi unlock application and repeat the step in the images.If you encounter the warning I mentioned in step 2 again, press and hold the volume down + power button for 10 seconds and enter fast mode again. That's all.The unlock button has become active. Now the system recognizes my device because I have installed the drivers required for fastboot
View attachment 5752897View attachment 5752899View attachment 5752901
Click to expand...
Click to collapse
Thanks for your time and effort in finding a potential solution for me.
But I hate to say that I have already tried installing Mi drivers through Mi Unlock Tool like you have suggested here. That is not the problem.

Bhavik479 said:
Thanks for your time and effort in finding a potential solution for me.
But I hate to say that I have already tried installing Mi drivers through Mi Unlock Tool like you have suggested here. That is not the problem.
Click to expand...
Click to collapse
I understand you.just clicking the install drivers button, wait for the confirmation screen and restart the phone by pressing the power button for 7 seconds without disconnecting the device from the usb.After the device is turned on, turn the usb debugging mode off and on again, and without disconnecting the usb, press and hold the volume down + power key for 7 seconds and log in to fastboot again.Close and open the mi unlock tool and apply the driver update option again. To get the correct result, use usb 2.0 port and windows 10. Even adding a new user on your computer and applying these steps from the new user account will give the correct result.

Some sentences may be wrong because I wrote with google translate. I'm doing this job, I could help you if you called me on Instagram. I don't have any free time now, take care of yourself, I hope you solve the problem

canero said:
I understand you.just clicking the install drivers button, wait for the confirmation screen and restart the phone by pressing the power button for 7 seconds without disconnecting the device from the usb.After the device is turned on, turn the usb debugging mode off and on again, and without disconnecting the usb, press and hold the volume down + power key for 7 seconds and log in to fastboot again.Close and open the mi unlock tool and apply the driver update option again. To get the correct result, use usb 2.0 port and windows 10. Even adding a new user on your computer and applying these steps from the new user account will give the correct result.
Click to expand...
Click to collapse
As far as I understood, start from fastboot connected state, check for drivers button, the dialogue will ask to reconnect, but do not reconnect. Restart phone by long pressing power button, toggle off and on USB debugging option, restart to Bootloader while still staying connected by pressing Power + Volume Down button. Fastboot shows up and it shows 'Mi Drive Installed' dialogue on screen. Re launch Mi Unlock Tool and hit Unlock option.
If this was the procedure you wanted to convey, I will say sadly it did not work. I successfully got Mi Drive Installed dialogue without disconnecting USB, but still Mi Unlock Tool shows No Device Connected upon relaunching it.

Bhavik479 said:
Anladığım kadarıyla, fastboot bağlı durumundan başlayın, sürücüleri kontrol edin buton, diyalog yeniden bağlanmayı isteyecek, ancak yeniden bağlanmayın. Güç düğmesine uzun basarak telefonu yeniden başlatın, USB hata ayıklama seçeneğini kapatıp açın, Güç + Sesi Kısma düğmesine basarak bağlı kalırken Bootloader'a yeniden başlayın. Fastboot belirir ve ekranda 'Mi Drive Yüklendi' diyaloğunu gösterir. Mi Unlock Tool'u yeniden başlatın ve Unlock seçeneğine basın.
İletmek istediğiniz prosedür buysa, ne yazık ki işe yaramadığını söyleyeceğim. USB bağlantısını kesmeden başarılı bir şekilde Mi Drive Yüklendi diyaloğunu aldım, ancak Mi Unlock Tool, yeniden başlatıldığında hala Cihaz Bağlı Değil gösteriyor.
Click to expand...
Click to collapse
Do not close the mi unlock app after you see the warning that the driver is installed.restart the fastboot mode. When doing this, remember that the usb debugging mode is turned off and the phone is connected to the computer.

Finally, reset your phone and computer and try everything from the beginning. I'm sorry if it's not solved despite everything. This problem is very annoying, don't forget to tell me if you solve it one day. Good luck

Question [BOOTLOADER] [OEM-LOCK] Poco x3 Pro [vayu] - I locked the bootloader... am I dumb?

Hi.
So, I was playing a game like everyday with my phone and then it suddenly stopped working and rebooted. After the reboot it got stuck on a boot-loop and wasn't unable to boot normally again. I got into the recovery and after many tries I was able to reinstall the ROM (PixelExperience 12-Plus) but after a few minutes it stopped working again and got into the boot-loop... again. I tried to reinstall the ROM again but I wasn't able to, so I decided to try with another recovery, I was using OrangeFox and after that I tried with TWRP. I got it to work with TWRP but then it crashed again but before doing it I got this screen:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"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",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
It never happened before and I was scared, "Did I just broke my phone?" I thought. So I asked a friend for help and he told me to try with Fastboot, he sent me a few command lines to try and... I ****ed up. The first line that I wrote was "fastboot oem lock" and the phone rebooted with this screen:
I literally locked the bootloader and now I'm unable to flash any ROM or even unlock it with MI-Unlocker 'cause I didn't have any MI account on the phone. I still can get into the fastboot but no more than that.
Is there anything that I can do? Or I should just send it to repair? Or buy a new brain for myself?​

SalmonellaREAL said:
Hi.
So, I was playing a game like everyday with my phone and then it suddenly stopped working and rebooted. After the reboot it got stuck on a boot-loop and wasn't unable to boot normally again. I got into the recovery and after many tries I was able to reinstall the ROM (PixelExperience 12-Plus) but after a few minutes it stopped working again and got into the boot-loop... again. I tried to reinstall the ROM again but I wasn't able to, so I decided to try with another recovery, I was using OrangeFox and after that I tried with TWRP. I got it to work with TWRP but then it crashed again but before doing it I got this screen:
View attachment 5941189
It never happened before and I was scared, "Did I just broke my phone?" I thought. So I asked a friend for help and he told me to try with Fastboot, he sent me a few command lines to try and... I ****ed up. The first line that I wrote was "fastboot oem lock" and the phone rebooted with this screen:
View attachment 5941187
I literally locked the bootloader and now I'm unable to flash any ROM or even unlock it with MI-Unlocker 'cause I didn't have any MI account on the phone. I still can get into the fastboot but no more than that.
Is there anything that I can do? Or I should just send it to repair? Or buy a new brain for myself?​
Click to expand...
Click to collapse
Lesson #1: Never do something when you don't know what the outcome will be, unless you're able to accept negative consequences. You should NEVER EVER lock the bootloader on custom firmware unless a custom root of trust has been installed, as with CalyxOS/GrapheneOS/etc.
Try to unlock the bootloader using fastboot flashing unlock or fastboot oem unlock
If those don't work, your phone is bricked, and you're going to have to either have it repaired or replace it, both of which will be expensive.

V0latyle said:
Try to unlock the bootloader using fastboot flashing unlock or fastboot oem unlock
Click to expand...
Click to collapse
That won't work, to unlock this phone you must use the Xiaomi official tool: https://en.miui.com/unlock/download_en.html
@SalmonellaREAL now you must pay to unlock it with an official Xiaomi account for EDL or you must go to an official repair center. I recommend you the second option, I never tried first.
Never lock bootloader unless the ROM has a self signed certifcates, in vayu there aren't any ROM with this.

V0latyle said:
Try to unlock the bootloader using fastboot flashing unlock or fastboot oem unlock
Click to expand...
Click to collapse
fastboot flashing unlock - Result: . . . FAILED (remote: unknown command)
fastboot oem unlock - Result: . . . FAILED (remote: Token Verify Failed, Reboot the device)
They didn't work, I'll try to send it to repair then. Thanks for replying!

swer45 said:
That won't work, to unlock this phone you must use the Xiaomi official tool: https://en.miui.com/unlock/download_en.html
@SalmonellaREAL now you must pay to unlock it with an official Xiaomi account for EDL or you must go to an official repair center. I recommend you the second option, I never tried first.
Never lock bootloader unless the ROM has a self signed certifcates, in vayu there aren't any ROM with this.
Click to expand...
Click to collapse
I believe you can still use ADB as long as you use the correct token for the unlock. I'm not very familiar with Xiaomi phones though so I'm not sure what the correct syntax would be.
I did find this:
GitHub - Canny1913/miunlock: A program that can be used to retrieve the bootloader unlock token for Xiaomi devices. (and unlock the bootloader)
A program that can be used to retrieve the bootloader unlock token for Xiaomi devices. (and unlock the bootloader) - GitHub - Canny1913/miunlock: A program that can be used to retrieve the bootload...
github.com
Description says it can retrieve the bootloader unlock token and unlock the device.