Unlock bootloader GT-I8200N - Galaxy S III Mini Q&A, Help & Troubleshooting

Hi,
I am unable to unlock the bootloader of my Samsung Galaxy S3 Mini (GT-I8200N). There is no "advanced reboot" or "OEM unlock" option in developer settings, and running "adb reboot bootloader" just reboots the phone. Any and all help is appreciated.
Thanks in advance

Penglyn said:
Hi,
I am unable to unlock the bootloader of my Samsung Galaxy S3 Mini (GT-I8200N). There is no "advanced reboot" or "OEM unlock" option in developer settings, and running "adb reboot bootloader" just reboots the phone. Any and all help is appreciated.
Thanks in advance
Click to expand...
Click to collapse
Afaik these old devices had no (by Samsung) locked bootloader.
At least mine (up to Note4) were unlocked.
If it was locked from the provider you gotta ask them.

bmwdroid said:
Afaik these old devices had no (by Samsung) locked bootloader.
At least mine (up to Note4) were unlocked.
If it was locked from the provider you gotta ask them.
Click to expand...
Click to collapse
OK, but if its unlocked, how do I get to fastboot?

Penglyn said:
OK, but if its unlocked, how do I get to fastboot?
Click to expand...
Click to collapse
Fastboot doesn't work on Samsungs.
You mean download mode?
You can get there if it's locked or not:
Turn off.
Press pwr+home+vol-down.

Related

[Q] Not able to enter fastboot

Hello,
I am not able to enter fastboot mode on my Xperia SP C5306 12.0.A.2.254. I have it rooted and with CWM. I have USB debugging enabled.
I have tried three methods of attempting to enter fastboot mode. Via the volume up/usb cable option, the .bat option, and using an app. None have worked.
I am running on Windows 7.
Is there anyway to fix this?
Thank you
Forgot to add that in the Service Menu, it says "Bootloader unlock allowed: No".
ogaboga said:
Forgot to add that in the Service Menu, it says "Bootloader unlock allowed: No".
Click to expand...
Click to collapse
Welcome to the world of the ever locked bootloader.
Nothing you can do except try our decent array of LBL roms.
Oblox said:
Welcome to the world of the ever locked bootloader.
Nothing you can do except try our decent array of LBL roms.
Click to expand...
Click to collapse
Maybe it has something to do with my carrier locking the phone?
ogaboga said:
Maybe it has something to do with my carrier locking the phone?
Click to expand...
Click to collapse
That is most likely the case.

[Q] Why does OEM unlocking automatically turn itself off -- Verizon

I'm trying to root my Verizon Nexus 6, and for some reason, when I try to toggle OEM unclocking and boot into the bootloader, it says device is locked - status code 2.
Any Verizon owners experience this problem, or know how to fix it? It would certainly be unfortunate if this is how Verizon keeps its customers from modifying their phones.
RootTheWorld said:
I'm trying to root my Verizon Nexus 6, and for some reason, when I try to toggle OEM unclocking and boot into the bootloader, it says device is locked - status code 2.
Any Verizon owners experience this problem, or know how to fix it? It would certainly be unfortunate if this is how Verizon keeps its customers from modifying their phones.
Click to expand...
Click to collapse
The toggle is a new feature of Android 5.0 and up. The toggle does not unlock your bootloader, rather it allows the process to happen. You need to use fastboot to OEM unlock. Click the top link in my signature for more info. Also, I suggest you read the beginners guide in the general forum.
RootTheWorld said:
I'm trying to root my Verizon Nexus 6, and for some reason, when I try to toggle OEM unclocking and boot into the bootloader, it says device is locked - status code 2.
Any Verizon owners experience this problem, or know how to fix it? It would certainly be unfortunate if this is how Verizon keeps its customers from modifying their phones.
Click to expand...
Click to collapse
After you toggle enable OEM unlock you need to reboot into boot loader and run the command "fastboot OEM unlock"
Everything is here
http://forum.xda-developers.com/nexus-6/general/how-to-nexus-6-one-beginners-guide-t2948481
Sent from my Nexus 6 using XDA Premium HD app
RootTheWorld said:
I'm trying to root my Verizon Nexus 6, and for some reason, when I try to toggle OEM unclocking and boot into the bootloader, it says device is locked - status code 2.
Any Verizon owners experience this problem, or know how to fix it? It would certainly be unfortunate if this is how Verizon keeps its customers from modifying their phones.
Click to expand...
Click to collapse
It is a security feature. All "enable oem unlocking" does is allow you to unlock the bootloader by fastboot. It doesnt actually unlock it.
RootTheWorld said:
I'm trying to root my Verizon Nexus 6, and for some reason, when I try to toggle OEM unclocking and boot into the bootloader, it says device is locked - status code 2.
Any Verizon owners experience this problem, or know how to fix it? It would certainly be unfortunate if this is how Verizon keeps its customers from modifying their phones.
Click to expand...
Click to collapse
When you toggle "allow bootloader unlock" in developer options, it does just that; it allows you to unlock the bootloader.
Then you boot to bootloader and type "fastboot OEM unlock".
Assuming you have the android SDK on your PC, and device connected by USB cable. Look in the sticky roll up thread in general section for specific directions.
Intub8 said:
After you toggle enable OEM unlock you need to reboot into boot loader and run the command "fastboot OEM unlock"
Everything is here
http://forum.xda-developers.com/nexus-6/general/how-to-nexus-6-one-beginners-guide-t2948481
Sent from my Nexus 6 using XDA Premium HD app
Click to expand...
Click to collapse
That's what I'm doing. However, the issue is that it relocks itself. Hence the "device is locked - status code 2". You shouldn't unlock the bootloader when it's locked, or else you could cause a bootloop.
RootTheWorld said:
That's what I'm doing. However, the issue is that it relocks itself. Hence the "device is locked - status code 2". You shouldn't unlock the bootloader when it's locked, or else you could cause a bootloop.
Click to expand...
Click to collapse
Are you sure its relocking? Are you sure you're unlocking it?
So you go into settings > developer options
You tick "allow OEM unlock"
You boot into bootloader
Connect USB to computer
Open command prompt
Type "fastboot OEM unlock"
Does it unlock and change to status 3?
When does it change back to 2?
rootSU said:
Are you sure its relocking? Are you sure you're unlocking it?
So you go into settings > developer options
You tick "allow OEM unlock"
You boot into bootloader
Connect USB to computer
Open command prompt
Type "fastboot OEM unlock"
Does it unlock and change to status 3?
When does it change back to 2?
Click to expand...
Click to collapse
Here's my rundown:
So you go into settings > developer options
tick "allow OEM unlock"
boot into bootloader
shows: device is locked - status code 2
boot back into OS
go to settings > developer options
allow OEM unlock is unticked
RootTheWorld said:
Here's my rundown:
So you go into settings > developer options
tick "allow OEM unlock"
boot into bootloader
shows: device is locked - status code 2
boot back into OS
go to settings > developer options
allow OEM unlock is unticked
Click to expand...
Click to collapse
and you misses a step.. You need to get ur ass in dos or terminal and run the fastboot oem unlock command
Robert_W said:
and you misses a step.. You need to get ur ass in dos or terminal and run the fastboot oem unlock command
Click to expand...
Click to collapse
I thought I'd put my phone into a bootloop if I did that with a device is locked - status code 2 message.
I'll report back shortly
RootTheWorld said:
Here's my rundown:
So you go into settings > developer options
tick "allow OEM unlock"
boot into bootloader
shows: device is locked - status code 2
boot back into OS
go to settings > developer options
allow OEM unlock is unticked
Click to expand...
Click to collapse
You are not doing it correctly. Go here and follow the directions
http://forum.xda-developers.com/nexus-6/general/how-to-nexus-6-one-beginners-guide-t2948481
cam30era said:
You are not doing it correctly. Go here and follow the directions
http://forum.xda-developers.com/nexus-6/general/how-to-nexus-6-one-beginners-guide-t2948481
Click to expand...
Click to collapse
I was doing everything correctly, but I didn't realize that it was okay to proceed on the "device is locked" message.
One thing that's not covered in the guide however: Is it okay to use the Chainfire root on a 5.1 device? The Chainfire website lists the tool as compatible with 5.0, but could I proceed anyway?
RootTheWorld said:
Here's my rundown:
So you go into settings > developer options
tick "allow OEM unlock"
boot into bootloader
shows: device is locked - status code 2
boot back into OS
go to settings > developer options
allow OEM unlock is unticked
Click to expand...
Click to collapse
As we've said multiple times, ticking the OEM unlock box only allows you to unlock. It doesn't actually unlock. There is only 1 way to unlock and that's with the fastboot commands.
---------- Post added at 03:22 AM ---------- Previous post was at 03:20 AM ----------
RootTheWorld said:
I was doing everything correctly
Click to expand...
Click to collapse
Yes the half of it you did, you did correctly
RootTheWorld said:
I didn't realize that it was okay to proceed on the "device is locked" message.
Click to expand...
Click to collapse
What did you expect it to say? You cant unlock it if its not locked.
rootSU said:
As we've said multiple times, ticking the OEM unlock box only allows you to unlock. It doesn't actually unlock. There is only 1 way to unlock and that's with the fastboot commands.
---------- Post added at 03:22 AM ---------- Previous post was at 03:20 AM ----------
Yes the half of it you did, you did correctly
What did you expect it to say? You cant unlock it if its not locked.
Click to expand...
Click to collapse
Yes, I know. The problem was that the OEM unlock box kept unticking itself, which I had assumed led to the message I saw in the bootloader. Do you understand what I am trying to say? I don't think it was clear.
RootTheWorld said:
Yes, I know. The problem was that the OEM unlock box kept unticking itself, which I had assumed led to the message I saw in the bootloader. Do you understand what I am trying to say? I don't think it was clear.
Click to expand...
Click to collapse
That box un ticks it self on each boot. I also have a Verizon nexus. You check it and USB debugging. Then use wugfresh tool kit to unlock. Or just power down to boot loader mode & use terminal. Its only used to reboot to allow unlock. My phone is a flash whore & that box always off.
RootTheWorld said:
Yes, I know. The problem was that the OEM unlock box kept unticking itself, which I had assumed led to the message I saw in the bootloader. Do you understand what I am trying to say? I don't think it was clear.
Click to expand...
Click to collapse
Yes the box keeps unticking. That's a security feature to stop a thief unlocking your bootloader and using your phone.
i run above method in my lenovo vibe shot z90a40, it gives below error msg: (failed: unknow remote command)
aicts said:
i run above method in my lenovo vibe shot z90a40, it gives below error msg: (failed: unknow remote command)
Click to expand...
Click to collapse
We can't help you. We have nexus 6.
same thing happens with me just mine would untick immediately after i press it oem unlocking in developer settings
Good lord man read the thread.
ON THE NEXT BOOT OF ANDROID, ALLOW OEM UNLOCK IS TICKED BACK OFF AUTOMATICALLY, THIS IS NORMAL AND CORRECT.
The reason it says allow unlock, and not unlock... Is because this command only ALLOWS unlocking to happen.
As a security measure, you need to allow unlock, then immediately do it... YOU CANNOT ENABLED ALLOW OEM UNLOCK FOR USE AT A LATER DATE.
This toggle simply passes the message to your bootloader that you it can be unlocked via the unlock command.
The point is, that if your phone is password protected and locked... No one can flash anything to it. If you could simply boot the phone to bootloader and unlock, it would not be as secure. You need to enter the password to gain access to the running phone, then choose to allow the unlock, then reboot. If you could simply toggle on allow unlock and leave it through reboots it would negate the whole idea that if someone gets your phone they cannot unlock the bootloader with out the phones password.

pra-lx1c432 can't unlock bootloader

I can't unlock the bootloader becouse frp is lock. when I put oem on in development option, frp stay lock. Why Please help me
When I put fastboot oem unlock say remote command not allowed
Wire1122 said:
I can't unlock the bootloader becouse frp is lock. when I put oem on in development option, frp stay lock. Why Please help me
When I put fastboot oem unlock say remote command not allowed
Click to expand...
Click to collapse
The switch "usb debugging on" likes to jump back again. You have to repeat the setting on the screenshot 3 to 4 times if you want to keep debugging.
ChinHon said:
The switch "usb debugging on" likes to jump back again. You have to repeat the setting on the screenshot 3 to 4 times if you want to keep debugging.
Click to expand...
Click to collapse
debugging works. It is oem unlock development that not works in my case
Wire112233 said:
debugging works. It is oem unlock development that not works in my case
Click to expand...
Click to collapse
Remove the google account or make a factoryreset.
Problem still there
Can you help me. Frp still locked. In Huawei support says me that the phone is ok
Wire112233 said:
Can you help me. Frp still locked. In Huawei support says me that the phone is ok
Click to expand...
Click to collapse
You must unlock the phone by huawei unlockcode.
ChinHon said:
You must unlock the phone by huawei unlockcode.
Click to expand...
Click to collapse
ok but command not allowed in fastboot becouse frp still locked
Is the oem now unlocked in developer options?
ChinHon said:
You must unlock the phone by huawei unlockcode.
Click to expand...
Click to collapse
ChinHon said:
Is the oem now unlocked in developer options?
Click to expand...
Click to collapse
yes
Then the unlocking must also work. Restart the pc, take another usb cable, restart the bootloader.
If that doesn't help, go to my root thread and follow the instructions for the UPDATE.APP from the last thread update.
ChinHon said:
Then the unlocking must also work. Restart the pc, take another usb cable, restart the bootloader.
If that doesn't help, go to my root thread and follow the instructions for the UPDATE.APP from the last thread update.
Click to expand...
Click to collapse
I will try
Wire112233 said:
I will try
Click to expand...
Click to collapse
the update is successfull installed but frp still locked such oem development option activated
Wire1122 said:
the update is successfull installed but frp still locked such oem development option activated
Click to expand...
Click to collapse
"Developer options" - "OEM unlocking" must be ON, without this FRP will be locked.
GDStaff said:
"Developer options" - "OEM unlocking" must be ON, without this FRP will be locked.
Click to expand...
Click to collapse
Oem unlocking is on but frp still lock
Problem solved. Disable oem unlock in development option. Factory reset the phone and reanable oem unlock. Now frp is unlocked

LG V405UA SPRINT no fastboot

Hello
After many search on the Web, i have no response to my problem.
My LG V40 sprint refuse to access to fastboot.
Please help me
Mine either, I asked a couple times but no answer. Good luck.:good:
There is no fastboot for Sprint to go to....unless your bootloader is unlocked...
Ainz_Ooal_Gown said:
There is no fastboot for Sprint to go to....unless your bootloader is unlocked...
Click to expand...
Click to collapse
There's your answer
Sent from my LM-V405 using Tapatalk
Thanks at all
Ainz_Ooal_Gown said:
There is no fastboot for Sprint to go to....unless your bootloader is unlocked...
Click to expand...
Click to collapse
Mine is.
Droidman61 said:
Mine is.
Click to expand...
Click to collapse
Then you should be getting the V35 bootloader/Fastboot.....
Ainz_Ooal_Gown said:
Then you should be getting the V35 bootloader/Fastboot.....
Click to expand...
Click to collapse
Nope cant get to it, and my Sprint connection wont work. Out of Service Area Mobile Network is unavailable. If you know a way to get to it that would be great.:good:
I also have a v40 with the bootloader unlocked (can enable USB debugging in Developer tools), but whenever I try to boot to fastboot mode (either from recovery or adb) it just boots back to normal Android OS.
Were you ever able to figure this out?
Ainz_Ooal_Gown said:
There is no fastboot for Sprint to go to....unless your bootloader is unlocked...
Click to expand...
Click to collapse
I have LG V40 Verizon and can i unlock bootloader?
robishavidze said:
I have LG V40 Verizon and can i unlock bootloader?
Click to expand...
Click to collapse
Yes, just not officially
Ainz_Ooal_Gown said:
Yes, just not officially
Click to expand...
Click to collapse
I unlocked it. It unlocked by Vlad
skippybosco said:
I also have a v40 with the bootloader unlocked (can enable USB debugging in Developer tools), but whenever I try to boot to fastboot mode (either from recovery or adb) it just boots back to normal Android OS.
Were you ever able to figure this out?
Click to expand...
Click to collapse
The process to unlock your bootloader is a bit more "involved" than just simply flipping a switch..
Talysdaddy said:
The process to unlock your bootloader is a bit more "involved" than just simply flipping a switch..
Click to expand...
Click to collapse
I've been on Android for 10 years, originally with the Galaxy S1 and many devices across multiple manufacturers.. The ability to "Enable OEM Unlock" at all has been a key indicator of whether the bootloder was unlocked. This was true for all of my devices, up to my LG v30 that I continue use for my daily driver.
The v40 was the first device that allowed me to enable OEM Unlock without the bootloader being unlocked, which is why I was confused.
Thanks for the reply.
I'm having the AT&T version (LM-V405UA), can I unlock its bootloader? I can't seem to be able to boot into fastboot mode though.. Weird.
---------- Post added at 09:50 PM ---------- Previous post was at 09:47 PM ----------
robishavidze said:
I unlocked it. It unlocked by Vlad
Click to expand...
Click to collapse
Hi, how can I contact him?
skippybosco said:
I've been on Android for 10 years, originally with the Galaxy S1 and many devices across multiple manufacturers.. The ability to "Enable OEM Unlock" at all has been a key indicator of whether the bootloder was unlocked. This was true for all of my devices, up to my LG v30 that I continue use for my daily driver.
The v40 was the first device that allowed me to enable OEM Unlock without the bootloader being unlocked, which is why I was confused.
Thanks for the reply.
Click to expand...
Click to collapse
Almost every Android I've had allowed me to enable OEM unlock....since for the most part it needs to be ticked on so that you can unlock it...
Ainz_Ooal_Gown said:
Almost every Android I've had allowed me to enable OEM unlock....since for the most part it needs to be ticked on so that you can unlock it...
Click to expand...
Click to collapse
Right. That was my point as well.
https://en.droidwiki.org/wiki/OEM-Unlock
Enabling OEM Unlock itself does not unlock the bootloader, but you can not unlock the bootloader unless it is unlocked.
This is the first device I've used that allowed me to enable OEM Unlock, but DID NOT allow me to unlock the bootloder. For other devices that had a locked bootloader, the first step of enabling OEM Unlock wasn't even an option, it was either missing altogether, or it was greyed out and unchangeable. That was my confusion.
skippybosco said:
Right. That was my point as well.
https://en.droidwiki.org/wiki/OEM-Unlock
Enabling OEM Unlock itself does not unlock the bootloader, but you can not unlock the bootloader unless it is unlocked.
This is the first device I've used that allowed me to enable OEM Unlock, but DID NOT allow me to unlock the bootloder. For other devices that had a locked bootloader, the first step of enabling OEM Unlock wasn't even an option, it was either missing altogether, or it was greyed out and unchangeable. That was my confusion.
Click to expand...
Click to collapse
With the OG LG Stylo the boost variant was the only one that couldn't be unlocked but OEM unlock was tickable we managed to root it but couldn't use TWRP that was available for the other 2 carrier variants....
Hola como lograste rootear tu lg v40 amigo?
robishavidze said:
I unlocked it. It unlocked by Vlad
Click to expand...
Click to collapse
Hola como lograste rootear tu lg v40 amigo?
You need to wipe your laf partition to get fastboot. Tread lightly, this phone is no fun to mod lol
lmick14000 said:
Hello
After many search on the Web, i have no response to my problem.
My LG V40 sprint refuse to access to fastboot.
Please help
Click to expand...
Click to collapse

Question Bootloader relocking

Hello everyone, I recently got a Pixel 7!
I have yet to unlock my pixel, but I was wondering if relocking the bootloader would be as it was never unlocked.
Assuming that, possibly, I restore the stock rom and relock the bootloader will my pixel show the bootloader unlocked warning at boot?
Most importantly, the "OEM Unlock" settings under "Developer options" will be greyed out or forced on? Will it show something like "bootloader already unlocked"?
Or would it be exactly as if I never unlocked it?
Thanks for your replies
philosoraptor7 said:
Hello everyone, I recently got a Pixel 7!
I have yet to unlock my pixel, but I was wondering if relocking the bootloader would be as it was never unlocked.
Click to expand...
Click to collapse
Essentially yes
philosoraptor7 said:
Assuming that, possibly, I restore the stock rom and relock the bootloader will my pixel show the bootloader unlocked warning at boot?
Click to expand...
Click to collapse
No, this screen only displays if the bootloader is unlocked
philosoraptor7 said:
Most importantly, the "OEM Unlock" settings under "Developer options" will be greyed out or forced on? Will it show something like "bootloader already unlocked"?
Click to expand...
Click to collapse
If you relock the bootloader, data will be wiped, which means that the OEM Unlock toggle is reset to Off.
philosoraptor7 said:
Or would it be exactly as if I never unlocked it?
Click to expand...
Click to collapse
Don't need to ask the same question twice
philosoraptor7 said:
Thanks for your replies
Click to expand...
Click to collapse
Happy to help
If you want to restore your device to stock and relock the bootloader in one go, use the Android Flash Tool
I did it when I was returning the first Pixel 7. No problem
Thanksss

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