Unlock Bootloader without access to phone - Galaxy A3, A5, A7, A8, A9 Q&A, Help & Troubleshoot

Hello Guys,
My phone (Samsung Galaxy A9 2018) isn't starting anymore but it can go into download mode, and is recognized by the PC but as a Samsung Modem.
So I wanted to try and flash TRWP to the phone, sadly the Bootloader is locked.
I have googled many ways, on how to unlock the Bootloader, but none of them could help me.
Have you guys an idea for me how I can unlock the Bootloader without directly accessing the phone? (maybe with Odin)
Thank you very much.

Your question is regarding a Samsung Galaxy A9, so why did you post in the Sony Xperia M section?
Please follow the Forum Rules!
Always post in an existing thread if a topic already exists, before creating a new thread.
Use our search function to find the best forum for your device.
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15. Keep threads / posts on-topic
Whilst a minor amount of off-topic posting may be overlooked, the general rule is that your posts / threads must be relevant to the Forum / thread in which you are posting.
General Forums - For news and announcements relating to your device.
Q&A Help & Troubleshooting Forums - For all question / request threads and posts. If there is no Q&A Help & Troubleshooting forum, use the General Forum of the relevant device
Accessories Forum - For posts related to accessories relevant to the device
Development Forums (ones with the word development in the title) - For Developers to post release threads e.g. ROMs and Kernels including modifications to kernels, bootloaders, ROMs, etc., as well as R&D development discussion threads designed with an end goal
Themes and Apps Forums - For the posting of Themes and / or Apps as well as announcements & discussions including modifications made to Themes and Apps.
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We will move your post to the correct area, but I strongly advise you review the Forum Rules and Member Etiquette linked in my signature.
As for your question, no - unlocking the bootloader is intentionally compromising security features, and as such is meant to only be done deliberately by the user, not remotely.
For instructions on unlocking your bootloader, see the Magisk installation instructions. If the OEM Unlocking toggle is not available, unlocking your bootloader will not be possible.

V0latyle said:
Your question is regarding a Samsung Galaxy A9, so why did you post in the Sony Xperia M section?
Please follow the Forum Rules!
We will move your post to the correct area, but I strongly advise you review the Forum Rules and Member Etiquette linked in my signature.
As for your question, no - unlocking the bootloader is intentionally compromising security features, and as such is meant to only be done deliberately by the user, not remotely.
For instructions on unlocking your bootloader, see the Magisk installation instructions. If the OEM Unlocking toggle is not available, unlocking your bootloader will not be possible.
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Thank you for your Feedback. I wasn't aware that I posted it into the wrong section, sorry!

Related

[Q] my acond is no work

ples help alike too post in forum Arrow
HD2 Android NAND Development bat no work
I GOO IN POST REPLY AND OPEN THIS PEICH
ymeri, you do not have permission to access this page. This could be due to one of several reasons:
Please Read: New members (those with fewer than 10 posts) are not permitted to post to development-related forums. The developer forums are intended for experienced users and developers to discuss ways to improve technical aspects related to ROMs and Software. While you may be an expert, we ask ALL users to avoid posting questions about using or installing ROMs and software in the Development Forums. To encourage this new Users can read but not post in these forums.
To ask Questions about developing your device, installing ROMs, software and themes you must go to the Q&A or General Forum.
Remember, your question has very likely been asked already, so please search before posting.
Your user account may not have sufficient privileges to access this page. Are you trying to edit someone else's post, access administrative features or some other privileged system?
If you are trying to post, the administrator may have disabled your account, or it may be awaiting activation.
1. GET A BETTER TRANSLATOR
2. Probably something to do with translation issues, but you must make 10 posts elsewhere in order to be able to post in the NAND Development section. This is in order to prevent new users to post there without contributing to the forums first.
Nigeldg THENKS BROO

Can use I9505XXUFNA5 rom?

Can use I9505XXUFNA5 rom in my Tmobile M919 whitout problems whit bootloader and modem?
THX
jmontero1980 said:
Can use I9505XXUFNA5 rom in my Tmobile M919 whitout problems whit bootloader and modem?
THX
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You are allowed to use your ROM only when you'd be able to read with understanding the XDA rules, especially about where to ask the questions.
Second condition is that you'd be able to distinguish the development thread from Q&A.
OP. Please follow the rules and post in the correct sections.
Rules state:
15. Keep threads / posts on-topic
Whilst a minor amount of off-topic posting may be overlooked, the general rule is that your posts / threads must be relevant to the Forum / thread in which you are posting.
General Forums - For news and announcements relating to your device.
Q&A Help & Troubleshooting Forums - For all question / request threads and posts. If there is no Q&A Help & Troubleshooting forum, use the General Forum of the relevant device
Accessories Forum - For posts related to accessories relevant to the device
Development Forums (ones with the word development in the title) - For Developers to post release threads e.g. ROMs and Kernels including modifications to kernels, bootloaders, ROMs, etc.
Themes and Apps Forums - For the posting of Themes and / or Apps as well as announcements & discussions including modifications made to Themes and Apps.
graffixnyc said:
OP. Please follow the rules and post in the correct sections.
Rules state:
15. Keep threads / posts on-topic
Whilst a minor amount of off-topic posting may be overlooked, the general rule is that your posts / threads must be relevant to the Forum / thread in which you are posting.
General Forums - For news and announcements relating to your device.
Q&A Help & Troubleshooting Forums - For all question / request threads and posts. If there is no Q&A Help & Troubleshooting forum, use the General Forum of the relevant device
Accessories Forum - For posts related to accessories relevant to the device
Development Forums (ones with the word development in the title) - For Developers to post release threads e.g. ROMs and Kernels including modifications to kernels, bootloaders, ROMs, etc.
Themes and Apps Forums - For the posting of Themes and / or Apps as well as announcements & discussions including modifications made to Themes and Apps.
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Ok, i understand, sorry.

Any possible way to install TWRP on OOS 11? (OP8P)

Title says it all, I was trying to install TWRP on OOS 11 but it bricked my device , I tried the same way on OOS 10 and it worked perfectly , any idea if it's possible to install TWRP while having OOS 11 (for OP8P)?
No not at this point, it's being worked on
Just check the twrp thread for updates.
Please next time search this has been asked a couple times.
https://forum.xda-developers.com/showpost.php?p=83788819&postcount=37
ilan0098 said:
Title says it all, I was trying to install TWRP on OOS 11 but it bricked my device , I tried the same way on OOS 10 and it worked perfectly , any idea if it's possible to install TWRP while having OOS 11 (for OP8P)?
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@ilan0098 Thread has been closed as duplicate of https://forum.xda-developers.com/oneplus-8-pro/help/to-install-twrp-oos-11-op8p-t4182625, which was initially posted in the development section and has been moved to the Q&A sub-forum.
XDA Forum Rules (excerpt):
...
5. Create a thread topic or post a message only once, this includes external links & streaming media.
As a large forum, we don't need unnecessary clutter. You're free to edit your message as you like, so if you do not receive an answer, revisit your message and see if you can describe your problem better. Not everyone is online at the same time so it might take a while before you receive an answer.
You can bump your unanswered question once every 24 hours
Duplicate threads and posts will be removed
Always post in an existing thread if a topic already exists, before creating a new thread.
Use our search function to find the best forum for your device.
Links to an external source are only allowed if relevant to the topic in hand. A description must be included, no copy & pasting from the original source.
Self-promotion is forbidden, this includes blogs, social media and video channels etc. Random links will be removed.
(...)
15. Keep threads / posts on-topic
Whilst a minor amount of off-topic posting may be overlooked, the general rule is that your posts / threads must be relevant to the Forum / thread in which you are posting.
General Forums - For news and announcements relating to your device.
Q&A Help & Troubleshooting Forums - For all question / request threads and posts. If there is no Q&A Help & Troubleshooting forum, use the General Forum of the relevant device
Accessories Forum - For posts related to accessories relevant to the device
Development Forums (ones with the word development in the title) - For Developers to post release threads e.g. ROMs and Kernels including modifications to kernels, bootloaders, ROMs, etc., as well as R&D development discussion threads designed with an end goal
Themes and Apps Forums - For the posting of Themes and / or Apps as well as announcements & discussions including modifications made to Themes and Apps.
...
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Custom rom

I need a custom rom for oppo f1s is there anyone who can help me out plz
@Jasmeet0071 THREAD CLOSED as duplicate of
Custom rom
I need a capable person to make a custom rom for oppo f1s a1601. Please i need a custom rom if anyone can help me i will be very thankfull to that person😏
forum.xda-developers.com
This thread has also been moved to Q&A section as it doesn't qualify for development. Please urgently read the sticked Guide to Oppo Device Forums (Please Read before posting)!
XDA Forum Rules (excerpt):
...
5. Create a thread topic or post a message only once, this includes external links & streaming media.
As a large forum, we don't need unnecessary clutter. You're free to edit your message as you like, so if you do not receive an answer, revisit your message and see if you can describe your problem better. Not everyone is online at the same time so it might take a while before you receive an answer.
You can bump your unanswered question once every 24 hours
Duplicate threads and posts will be removed
Always post in an existing thread if a topic already exists, before creating a new thread.
Use our search function to find the best forum for your device.
Links to an external source are only allowed if relevant to the topic in hand. A description must be included, no copy & pasting from the original source.
Self-promotion is forbidden, this includes blogs, social media and video channels etc. Random links will be removed.
(...)
15. Keep threads / posts on-topic
Whilst a minor amount of off-topic posting may be overlooked, the general rule is that your posts / threads must be relevant to the Forum / thread in which you are posting.
General Forums - For news and announcements relating to your device.
Q&A Help & Troubleshooting Forums - For all question / request threads and posts. If there is no Q&A Help & Troubleshooting forum, use the General Forum of the relevant device
Accessories Forum - For posts related to accessories relevant to the device
Development Forums (ones with the word development in the title) - For Developers to post release threads e.g. ROMs and Kernels including modifications to kernels, bootloaders, ROMs, etc., as well as R&D development discussion threads designed with an end goal
Themes and Apps Forums - For the posting of Themes and / or Apps as well as announcements & discussions including modifications made to Themes and Apps.
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[QUESTION] Bootloop after flashing TWRP over LinageOS Recovery

After the official linage Recovery didn't accept lineageOS20 Rom because of signature verification problems I flashed TWRP via adb sideload. Now the Rom can be installed without any issues, but I cant see the result. Booting the system isn't possible and brings me back to TWRP automatically. It seems the device tries to boot, fails and start the recovery. Device is Samsung Tab S5e (gts4lv).
Strange is that the device put in "Download mode" cant be recognized by "adb devices" any more.
Odin sees the divices indicating it with the green COM indicator but cant transfer any data on the device.
Is there any way to rescue my device?
Please remember to search before posting to ensure you're posting in the right section for your device:
1. Search before posting.
Use one of our search functions before posting or creating a new thread. Whether you have a question or just something new to share, it's very likely that someone has already asked that question or shared that news.
Click to expand...
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15. Keep threads / posts on-topic
Whilst a minor amount of off-topic posting may be overlooked, the general rule is that your posts / threads must be relevant to the Forum / thread in which you are posting.
General Forums - For news and announcements relating to your device.
Q&A Help & Troubleshooting Forums - For all question / request threads and posts. If there is no Q&A Help & Troubleshooting forum, use the General Forum of the relevant device
Accessories Forum - For posts related to accessories relevant to the device
Development Forums (ones with the word development in the title) - For Developers to post release threads e.g. ROMs and Kernels including modifications to kernels, bootloaders, ROMs, etc., as well as R&D development discussion threads designed with an end goal
Themes and Apps Forums - For the posting of Themes and / or Apps as well as announcements & discussions including modifications made to Themes and Apps.
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As a courtesy, we have moved your thread to the Galaxy Tab S5e Questions and Answers section.
I've put that topic in the general forum because I think this is not a specific problem of the device but of the Lineage/TWRP Issue. Anyway, if it helps, thank you for moving this to the subforum.

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