What makes Bootloader locked again? - Android Q&A, Help & Troubleshooting

id like to root my phone but i have to pay for the bootloader unlock service as im using huawei devices
so to be precise i dont want to pay again if i somehow locked it again
so i need what causes bootloader to locked again

nabil321 said:
id like to root my phone but i have to pay for the bootloader unlock service as im using huawei devices
so to be precise i dont want to pay again if i somehow locked it again
so i need what causes bootloader to locked again
Click to expand...
Click to collapse
If you're asking whether the bootloader can be automatically or inadvertently locked, the answer is no.
Unlocking and locking the bootloader are intended to be deliberate acts requiring specific commands. Once your bootloader is unlocked, the only way you can lock it is by using fastboot commands, the same way you unlocked it.
Keep in mind that if the software on your device is not absolutely 100% genuine OEM, locking the bootloader will most likely render the device unusable.

nabil321 said:
id like to root my phone but i have to pay for the bootloader unlock service as im using huawei devices
so to be precise i dont want to pay again if i somehow locked it again
so i need what causes bootloader to locked again
Click to expand...
Click to collapse
Hello and good afternoon, @nabil321
Welcome to XDA! I hope you'll alawys get the support your require.
However, prior to your next posting please read the guidances that are stuck on top of every forum like
Note: Questions go in Q&A Forum
If you are posting a Question Thread post it in the Q&A forum. Technical discussion of Android development and hacking. No noobs, please. Device-specific releases should go under the appropriate device forum...
forum.xda-developers.com
and the others. I've moved your thread to Android Q&A.
Thanks for your cooperation!
Regards
Oswald Boelcke
Senior Moderator

nabil321 said:
id like to root my phone but i have to pay for the bootloader unlock service as im using huawei devices
so to be precise i dont want to pay again if i somehow locked it again
so i need what causes bootloader to locked again
Click to expand...
Click to collapse
depending on your device, you do not need unlock service, use hardware testpoint (requires dissassembly the phone)
the software you can use is potatonv

Related

ROOT vs UNLOCK BOOTLOADER - Really Good Discussion

Root vs unlock bootloader - Really Good Discussion
In a wild search on Google I found this interesting Forum Discussion on ROOT and Unlocked Bootloader.
Noobs like me D) should read it to make some basics clear.
http://forums.whirlpool.net.au/archive/2058660
Thanks a lot for reading this post.
edit:
general knowledge thread on xda
I have an Asus Infinity tablet. I rooted as soon as I could, but kept it locked fur a while because of warranty issues. Finally, I bit the bullet and unlocked because I wanted to play with ROM's. I haven't had any problems, and I'll unlock my p769 as soon as available to.
R: ROOT vs UNLOCK BOOTLOADER - Really Good Discussion
Is it possible to unlock bl in new jb rom?
denzel09 said:
Is it possible to unlock bl in new jb rom?
Click to expand...
Click to collapse
If it is we can figure out a way to unlock p769s boot loader without update although I'm hoping we will get an update soon.

Help needed to root Viewsonic VSD243 non-GMS device

Hi all,
I'm hoping one the XDA geniuses can help with a challenge I have!
I have a Viewsonic VSD243 I bought second hand to give to my kids but didn't realize it's a non-GMS device and therefore doesn't support playstore. Most of the apps the kids want need playstore so have been looking for a way to get playstore working without luck. Now I know why it was so cheap!
The bootloader is locked and I haven't been able to get to the bootloader to unlock as there are no physical volume buttons on the device and abd reboot bootloader just restarts the device...fastboot is not finding a device no matter what I try. I've been attempting various other workarounds for weeks with no luck (e.g. methods used for Huawei devices using apps like chat partner, ) but not had any luck
Please could someone recommend a method(s) to unlock the bootloader / root the device given the above (especially with the restriction of not having physical volume keys)? Ideally I'd like to create a dual boot on the device, one with existing ROM and one with custom (e.g. via Magisk) but can't get to root :-(
Your help would be really appreciated
Jaggedboy said:
Hi all,
I'm hoping one the XDA geniuses can help with a challenge I have!
I have a Viewsonic VSD243 I bought second hand to give to my kids but didn't realize it's a non-GMS device and therefore doesn't support playstore. Most of the apps the kids want need playstore so have been looking for a way to get playstore working without luck. Now I know why it was so cheap!
The bootloader is locked and I haven't been able to get to the bootloader to unlock as there are no physical volume buttons on the device and abd reboot bootloader just restarts the device...fastboot is not finding a device no matter what I try. I've been attempting various other workarounds for weeks with no luck (e.g. methods used for Huawei devices using apps like chat partner, ) but not had any luck
Please could someone recommend a method(s) to unlock the bootloader / root the device given the above (especially with the restriction of not having physical volume keys)? Ideally I'd like to create a dual boot on the device, one with existing ROM and one with custom (e.g. via Magisk) but can't get to root :-(
Your help would be really appreciated
Click to expand...
Click to collapse
@Jaggedboy
Welcome to XDA. I hope you'll always get the support you require.
However, prior to your next posting please read the guidances that are stuck on top of every forum like
Note: Questions go in Q&A Forum
If you are posting a Question Thread post it in the Q&A forum. Technical discussion of Android development and hacking. No noobs, please. Device-specific releases should go under the appropriate device forum...
forum.xda-developers.com
and the others. I've moved the thread to Android Q&A.
Thanks for your cooperation.
Regards
Oswald Boelcke
Senior Moderator
I successfully unlocked and rooted a VSD231 with KingoRoot.apk just say no to all the junk it tries to put on it. I am going from memory a long time ago.
thank you for responding and good to know you managed with a viewsonic device. I'll give it a go as don't have many other options...
I spoke to Viewsonic and was told the only way to get playstore was to jailbreak the device and put on an alternate ROM...when I asked how to unlock the bootloader to do it they said they couldn't / wouldn't tell me :-( !!
When I talked to them years ago, they were very surprised that I unlocked and rooted my VSD231.

Combination Firmware for Samsung Galaxy J4 (SM-J400F) - Binary version U9

Hi guys. There seems to be no thread for Galaxy J4 despite requests to put it up so my sincere apologies if I've missed it. Got my sister's J4 on FRP lock. She hadn't enabled USB debugging nor OEM unlock in Developer options. I've watched tons of tutorials on how to unlock but it's dawned on me that none of these methods can work with the bootloader locked. The only way I think I can do that is by flashing the exact combination firmware then enabling USB debugging and OEM unlock then attempting FRP unlock. Problem is, the available combination firmware I've come across are binary versions U1 to U7. This phone is binary version U9. I've scoured the internet for this specific combination firmware to no avail. Anyone knows where I can find it? It's been a long 3 months of searching am almost giving up.
seya90210 said:
Hi guys. There seems to be no thread for Galaxy J4 despite requests to put it up so my sincere apologies if I've missed it. Got my sister's J4 on FRP lock. She hadn't enabled USB debugging nor OEM unlock in Developer options. I've watched tons of tutorials on how to unlock but it's dawned on me that none of these methods can work with the bootloader locked. The only way I think I can do that is by flashing the exact combination firmware then enabling USB debugging and OEM unlock then attempting FRP unlock. Problem is, the available combination firmware I've come across are binary versions U1 to U7. This phone is binary version U9. I've scoured the internet for this specific combination firmware to no avail. Anyone knows where I can find it? It's been a long 3 months of searching am almost giving up.
Click to expand...
Click to collapse
Hello and good afternoon, @seya90210
Welcome to XDA although you're already a long time member. I hope you'll always find and get the support you require.
However, prior to your next posting please read the guidances that are stuck on top of every forum like
Note: Questions go in Q&A Forum
If you are posting a Question Thread post it in the Q&A forum. Technical discussion of Android development and hacking. No noobs, please. Device-specific releases should go under the appropriate device forum...
forum.xda-developers.com
and the others. I've moved the thread to Android Q&A.
Thanks for your cooperation!
Regards
Oswald Boelcke
Senior Moderator
Thanks for that. An oversight on my part.. Will adhere to the guides.

Finding kernel/chipset exploits for android rooting

I've been trying to root my Huawei y6 prime for a while now, and after getting to know that bootloader unlocking is a mandatory intermediary process, which itself requires a code during the unlocking process, thus i had to resort to bruteforcing the code but it just doesn't work properly. After some research, i come to realize that some privilege escalation exploits that affects vulnerabilities at the android kernel or the chipsets i.e. android-dirty-pipe and mtk-su, can be used to gain root privileges instead of the "typical" aforementioned one or ready-made android applications.
The question is -if i'm understanding it correctly- How can i find the respective exploits that works for my phone? Is there an index or a more feasible way of aggregating possible exploits that can work with my phone's kernel/android build/chipset/model?
I was skeptic about the fact that being unable to obtain bootloader unlock token is the end of the road as most previous threads claim!
polendina said:
I've been trying to root my Huawei y6 prime for a while now, and after getting to know that bootloader unlocking is a mandatory intermediary process, which itself requires a code during the unlocking process, thus i had to resort to bruteforcing the code but it just doesn't work properly. After some research, i come to realize that some privilege escalation exploits that affects vulnerabilities at the android kernel or the chipsets i.e. android-dirty-pipe and mtk-su, can be used to gain root privileges instead of the "typical" aforementioned one or ready-made android applications.
The question is -if i'm understanding it correctly- How can i find the respective exploits that works for my phone? Is there an index or a more feasible way of aggregating possible exploits that can work with my phone's kernel/android build/chipset/model?
I was skeptic about the fact that being unable to obtain bootloader unlock token is the end of the road as most previous threads claim!
Click to expand...
Click to collapse
Hello and good morning, @polendina
Welcome to XDA. I hope you'll always find and get the support you require.
However, prior to your next posting please read the guidances that are stuck on top of every forum like
Note: Questions go in Q&A Forum
If you are posting a Question Thread post it in the Q&A forum. Technical discussion of Android development and hacking. No noobs, please. Device-specific releases should go under the appropriate device forum...
forum.xda-developers.com
and the others. I've moved the thread to Android Q&A.
Thanks for your cooperation!
Regards
Oswald Boelcke
Senior Moderator
I'd like to know more about this. In bootloader locked phones, what is keeping it locked? Any way to use hashcat or something to crack the bootloader lol
mnemesis said:
I'd like to know more about this. In bootloader locked phones, what is keeping it locked? Any way to use hashcat or something to crack the bootloader lol
Click to expand...
Click to collapse
I can't tell if you're for real or not, but anyhow i have no clue.

ViVo X Note unlock bootloader???

This is a very simple question, and i have tried scouring the internet for this answer, but to no avail, i havent found anything. Has anyone successfully unlocked the bootloader/rooted/and flash an american OS to the Vivo X Note? I've tried all the conventional ways to unlock the bootloader on this device and nothing works. It's so odd because vivo has OEM unlocking in the dev options, but nothing in ADB works with it and there isnt an OEM tool like Xiaomi's tool that can do it. Every command just does not work with this phone. I hope there is an answer out there cause i would love to be able to remove originOS and put funtouch or something American on it. Thanks!
have you tried below command from fastboot-
fastboot bbk vivo_bsp unlock_vivo
Click to expand...
Click to collapse
I heard it works on some Vivo phone, not on all
criiture said:
This is a very simple question, and i have tried scouring the internet for this answer, but to no avail, i havent found anything. Has anyone successfully unlocked the bootloader/rooted/and flash an american OS to the Vivo X Note? I've tried all the conventional ways to unlock the bootloader on this device and nothing works. It's so odd because vivo has OEM unlocking in the dev options, but nothing in ADB works with it and there isnt an OEM tool like Xiaomi's tool that can do it. Every command just does not work with this phone. I hope there is an answer out there cause i would love to be able to remove originOS and put funtouch or something American on it. Thanks!
Click to expand...
Click to collapse
Hello and good morning, @criiture
Welcome to XDA. I hope you'll always find and get the support you require.
However, prior to your next posting please read the guidances that are stuck on top of every forum like
[Read Before Posting]QUESTIONS DO NOT BELONG IN GENERAL
Hello Everybody, In order to attempt to keep this forum neat and tidy the moderation team is asking you to post your questions into the Questions and Answers (Q&A) forum and not into the General section. You can find the Q&A forum by clicking...
forum.xda-developers.com
and the others. I've moved the thread to Android Q&A.
Thanks for your cooperation!
Regards
Oswald Boelcke
Senior Moderator
Some people reports this guide to work for unlocking Vivo X Note as well
I have a vivo X note and i really want to unlock bootloader. I think i have to downgrade it, but vivo does not help...
ferja5 said:
I have a vivo X note and i really want to unlock bootloader. I think i have to downgrade it, but vivo does not help...
Click to expand...
Click to collapse
criiture said:
This is a very simple question, and i have tried scouring the internet for this answer, but to no avail, i havent found anything. Has anyone successfully unlocked the bootloader/rooted/and flash an american OS to the Vivo X Note? I've tried all the conventional ways to unlock the bootloader on this device and nothing works. It's so odd because vivo has OEM unlocking in the dev options, but nothing in ADB works with it and there isnt an OEM tool like Xiaomi's tool that can do it. Every command just does not work with this phone. I hope there is an answer out there cause i would love to be able to remove originOS and put funtouch or something American on it. Thanks!
Click to expand...
Click to collapse
I know this was quite awhile ago but I can help if you're still interested. This is my current device and I have a pretty good handle on downgrading/rooting. I can also help you get back to the latest OTA. The key is to make sure you have a copy of the OTA.zip or at least the boot.img from that OTA version. I have all of these files backed up and can share them but could also walk you through the process so you're able to do it yourself. Let me know if interested. If there is a demand I may write up a guide. Happy to share any knowledge/data on an individual basis if not

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