'Enable OEM Unlock' not working? - Samsung Galaxy S7 Questions and Answers

This is happening to me on a Samsung s7... I was able to install a form previously, but then I went back to the official version using Odin.
Now when I click the OEM unlock and 'Enable', the button turns itself off Any ideas?

spYagami said:
This is happening to me on a Samsung s7... I was able to install a form previously, but then I went back to the official version using Odin.
Now when I click the OEM unlock and 'Enable', the button turns itself off Any ideas?
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Click to collapse
Since you have unlocked the bootloader, you won't do it again. You have to lock it first, if possible (I have no experience with this model).

ze7zez said:
Since you have unlocked the bootloader, you won't do it again. You have to lock it first, if possible (I have no experience with this model).
Click to expand...
Click to collapse
How should I lock it? Any good tutorials? Apologies, and thank you for your help so far!

Related

(Answered) TWRP installed despite bootloader being locked?

How come this is possible?
New User... Maybe said:
How come this is possible?
Click to expand...
Click to collapse
This is not possible BL must be unlocked for any kind of flashing or installing twrp.
Sent from my Redmi Note 7 Pro using XDA Labs
hackermssharma said:
This is not possible BL must be unlocked for any kind of flashing or installing twrp.
Click to expand...
Click to collapse
I just realized that when I boot up the phone, it shows the "Redmi by Xiaomi" and below it says unlocked, (IDK if it has any relation). But the Developer options say that BL is locked and OEM Unlocking can be enabled. What does this mean?
This is same with me miui 11 stockrom
Magisk flashing creats bootloader locked
If i uninstall magisk it show unlocked again
Even Netflix installation works by this in playstore
New User... Maybe said:
I just realized that when I boot up the phone, it shows the "Redmi by Xiaomi" and below it says unlocked, (IDK if it has any relation). But the Developer options say that BL is locked and OEM Unlocking can be enabled. What does this mean?
Click to expand...
Click to collapse
Well that's cos at one point you had unlocked your bootloader and might have dirty flashed MIUI or used fastboot images, which aren't able to recognise the state. But in reality it remains unlocked and it just shows locked in the settings.
Naveenthemi said:
Well that's cos at one point you had unlocked your bootloader and might have dirty flashed MIUI or used fastboot images, which aren't able to recognise the state. But in reality it remains unlocked and it just shows locked in the settings.
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Click to collapse
Ohhh! Thanks! I'm learning so much.
Naveenthemi said:
Well that's cos at one point you had unlocked your bootloader and might have dirty flashed MIUI or used fastboot images, which aren't able to recognise the state. But in reality it remains unlocked and it just shows locked in the settings.
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Click to collapse
Yes true. It is unlocked. The unlocked message at boot verifies that bl is unlocked.
Sent from my Redmi Note 7 Pro using XDA Labs
hackermssharma said:
Yes true. It is unlocked. The unlocked message at boot verifies that bl is unlocked.
Click to expand...
Click to collapse
I apologize if this is a bit too late, but I have a follow up question. Can I try to unlock the bootloader even if it's really unlocked just to connect my account to my phone or something like that?
New User... Maybe said:
I apologize if this is a bit too late, but I have a follow up question. Can I try to unlock the bootloader even if it's really unlocked just to connect my account to my phone or something like that?
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Click to collapse
If it's unlocked, the Mi account is already linked tho.
Even if you try you won't see a difference, maybe the unlocked symbol might come up.
Naveenthemi said:
If it's unlocked, the Mi account is already linked tho.
Even if you try you won't see a difference, maybe the unlocked symbol might come up.
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Click to collapse
So I won't have any problems doing it? The thing is I bought my phone with the BL already unlocked.
New User... Maybe said:
So I won't have any problems doing it? The thing is I bought my phone with the BL already unlocked.
Click to expand...
Click to collapse
Woah. Unauthorised seller eh. Are you sure you are running the Orginal MIUI? The reason Xioami started locking away the bootloader was cos of these unauthorised sellers, unlocking the device and flashing it with an outdated ROM. You should try, Go to Developer settings, link your current Mi account and then proceed to unlock. Or if it says an acc is already linked, lock the bootloader (only if on MIUI Stock, Custom ROM would lead to a bootloop), and now go link your account. (Do take backups before proceeding)
Naveenthemi said:
Woah. Unauthorised seller eh. Are you sure you are running the Orginal MIUI? The reason Xioami started locking away the bootloader was cos of these unauthorised sellers, unlocking the device and flashing it with an outdated ROM. You should try, Go to Developer settings, link your current Mi account and then proceed to unlock. Or if it says an acc is already linked, lock the bootloader (only if on MIUI Stock, Custom ROM would lead to a bootloop), and now go link your account. (Do take backups before proceeding)
Click to expand...
Click to collapse
Well, I did flash the latest MIUI Indian Global ROM a few weeks back so maybe I am running Original MIUI?
But I'm still gonna try to "unlock" it. And is there an option to keep all data after the unlock?
EDIT: I just read the Mi Unlock Tool's disclaimer and how they say some features won't work after the unlock. I mean, I know mine is unlocked but I think I'll just keep those features.
New User... Maybe said:
Well, I did flash the latest MIUI Indian Global ROM a few weeks back so maybe I am running Original MIUI?
But I'm still gonna try to "unlock" it. And is there an option to keep all data after the unlock?
EDIT: I just read the Mi Unlock Tool's disclaimer and how they say some features won't work after the unlock. I mean, I know mine is unlocked but I think I'll just keep those features.
Click to expand...
Click to collapse
Usually the first time you unlock it wipes your internal storage , but it doesn't wipe it in the subsequent unlocks (as far as I've tried). Yep it doesn't actually affect any system functions.. everything is as smooth as before..Find my device works fine as well..the only risk is that if your device gets stolen they could easily wipe MIUI and bypass that account lock by flashing a custom ROM.

SM-S205DL (Straight Talk Model)

Hi all,
I have a Straight Talk Galaxy A20, model SM-S205DL. Will root instructions work for this model? I don't notice an OEM unlock option in the Developer Mode menu, but I can boot in download mode. Thoughts? It's been a while since I tried to install custom firmware.
justlance said:
Hi all,
I have a Straight Talk Galaxy A20, model SM-S205DL. Will root instructions work for this model? I don't notice an OEM unlock option in the Developer Mode menu, but I can boot in download mode. Thoughts? It's been a while since I tried to install custom firmware.
Click to expand...
Click to collapse
You need to unlock OEM for it to work
physwizz said:
You need to unlock OEM for it to work
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Click to collapse
Okay. Is there a way to do that other than the developer options menu? If the OEM unlock option isn't there, is there some other method?
justlance said:
Okay. Is there a way to do that other than the developer options menu? If the OEM unlock option isn't there, is there some other method?
Click to expand...
Click to collapse
There is a trick where you change the date to some weeks in the future.
im having the same issue
yea the dev options to show OEM Unlock seems to be gone from Straighttalk/tracfone versions, its even Gone from Download Mode (you dont even SEE the option for long-press vol+ to unlock bootloader)
is there a way to root
Corelua01 said:
is there a way to root
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Click to collapse
Some places claim to be able to change the CID of the phone. Would that help? I imagine once able to load different non-TFN BS firmware on the phone that magic developer option may appear. Or is it a hardware thing and the exynos chip has something to do with it? Not sure how it all works yet. Anyone know what the unlocked us retail model contains?
I'm not smart enough to find out so hopefully someone is and reads this and can chime in regarding all the points...
Me and my arrow...

Any issues with Google pay for unlocked bootloader?

I have Tmobile Oneplus 8. I haven't unlocked the bootloader yet. Will I have any issues with Google pay with unlocked bootloader if I'm going to unlock it?
I'm using company secure email app on my phone as well. If I have any issues, will I be able to lock the bootloader?
I don't know about tmobile version. But i have unlocked bootloader + root on oos11 and google pay is working fine here
I'm trying stock with locked bootloader and no root for the first time in maybe 8 years, but I've always got everything to work. You tried hiding it in Magisk?
KLit75 said:
I'm trying stock with locked bootloader and no root for the first time in maybe 8 years, but I've always got everything to work. You tried hiding it in Magisk?
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Click to collapse
Thanks. I haven't rooted it yet.
KLit75 said:
I'm trying stock with locked bootloader and no root for the first time in maybe 8 years, but I've always got everything to work. You tried hiding it in Magisk?
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Click to collapse
luscharsch said:
I don't know about tmobile version. But i have unlocked bootloader + root on oos11 and google pay is working fine here
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Click to collapse
do you know if we can lock bootloader after unlocking it?
zrzhu said:
do you know if we can lock bootloader after unlocking it?
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Click to collapse
You can, with msm tool, it relocks bootloader and factory resets everything to stock.

Question How to unlock bootloader?

I just received my Flip3 (SM-F711U1) and would like to unlock my bootloader. However developer options is missing the OEM Unlock option. It's completely missing not just grayed out. I read a few articles about needed to change the system date but none of those guides changed anything. Can someone help?
Also, I attempted to call *#*#7378423*#*# to double checked that it wasn't already unlocked and I got a popup saying "Unabled to process the request."
Thank you.
- Hit settings
- about phone
- software information
- build number 5 times
- profit
I have no issue unlocking developer options. As my first post said the OEM Unlock option is missing from dev options.
RedHatter271 said:
I have no issue unlocking developer options. As my first post said the OEM Unlock option is missing from dev options.
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Click to collapse
Have you tried through fastboot? (fastboot oem unlock)
Oh, got you. Sorry!
As far as I'm aware samsung devices don't support fastboot. I did attempt to connect it in case I was wrong but was not able to get fastboot to recognize the device.
RedHatter271 said:
I just received my Flip3 (SM-F711U1) and would like to unlock my bootloader. However developer options is missing the OEM Unlock option. It's completely missing not just grayed out. I read a few articles about needed to change the system date but none of those guides changed anything. Can someone help?
Also, I attempted to call *#*#7378423*#*# to double checked that it wasn't already unlocked and I got a popup saying "Unabled to process the request."
Thank you.
Click to expand...
Click to collapse
You can try directly unlock without ticking the oem unlock. By boot into download mode. The other thing is your device or carrier or country wont allow your flip 3 to be unlock. There last step you can try is clean flash via odin with your latest firmware.
darkidz555 said:
You can try directly unlock without ticking the oem unlock. By boot into download mode. The other thing is your device or carrier or country wont allow your flip 3 to be unlock. There last step you can try is clean flash via odin with your latest firmware.
Click to expand...
Click to collapse
I can get into download mode fine but don't know how to use that to unlock directly. Can you give more details?
I tried a clean flach with my latest firmware but it didn't change anything.
It's a US carrier unlocked version I bought directly from Samsung. CSC of XAA. Currently using a T-Mobile SIM.
RedHatter271 said:
I can get into download mode fine but don't know how to use that to unlock directly. Can you give more details?
I tried a clean flach with my latest firmware but it didn't change anything.
It's a US carrier unlocked version I bought directly from Samsung. CSC of XAA. Currently using a T-Mobile SIM.
Click to expand...
Click to collapse
Did your Developer Options come already unlocked after setting it up?
twistedumbrella said:
Did your Developer Options come already unlocked after setting it up?
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Click to collapse
If you had them enabled on your last phone and you restored from your Google backup, developer options will be enabled. Has happened on all of my phones since Android 9
luigi90210 said:
If you had them enabled on your last phone and you restored from your Google backup, developer options will be enabled. Has happened on all of my phones since Android 9
Click to expand...
Click to collapse
Thanks, but I was asking @RedHatter271 to see if the restore data might have corrupted the options.
twistedumbrella said:
Thanks, but I was asking @RedHatter271 to see if the restore data might have corrupted the options.
Click to expand...
Click to collapse
My option is missing as well but I have the T-Mobile model that I have sim unlocked. As far as I knew all us models of Samsung phones did not support bootloader unlocking
luigi90210 said:
My option is missing as well but I have the T-Mobile model that I have sim unlocked. As far as I knew all us models of Samsung phones did not support bootloader unlocking
Click to expand...
Click to collapse
They support it.
RedHatter271 said:
I can get into download mode fine but don't know how to use that to unlock directly. Can you give more details?
I tried a clean flach with my latest firmware but it didn't change anything.
It's a US carrier unlocked version I bought directly from Samsung. CSC of XAA. Currently using a T-Mobile SIM.
Click to expand...
Click to collapse
If you can boot into download mode there is an instruction just press vol up button and it will prompt do you want to unlock bootloader mine is like that. Im not sure yours since mine is korea version.
luigi90210 said:
My option is missing as well but I have the T-Mobile model that I have sim unlocked. As far as I knew all us models of Samsung phones did not support bootloader .
Click to expand...
Click to collapse
They support bootloader unlock. samsung dont support using fastboot unlock or command at all
if you're in North America, Canada etc Qualcomm chips there do not support bootloader unlocking, at least the Samsung one's don't, not sure about other OEMs.
darkidz555 said:
They support bootloader unlock. samsung dont support using fastboot unlock or command at all
Click to expand...
Click to collapse
They used to, so there was always a possibility it returned.
I recently read this article on XDA about unlocking the boot loader on the Fold 3 which results in Samsung disabling the camera (WTH?), Is this a thing on the Flip3 too?
My device is rooted. I have always been able to find the OEM unlock option under developer options without any constraints.
My camera is NOT affected. I can still use it without any issues.
I have an European device (SM-F711B).
Hope this helps some of you to track down whether this is a location or carrier based problem.
Hey Redhatter,
Out of topic question, but are you getting Tmobile 5G just fine?
RedHatter271 said:
I just received my Flip3 (SM-F711U1) and would like to unlock my bootloader. However developer options is missing the OEM Unlock option. It's completely missing not just grayed out. I read a few articles about needed to change the system date but none of those guides changed anything. Can someone help?
Also, I attempted to call *#*#7378423*#*# to double checked that it wasn't already unlocked and I got a popup saying "Unabled to process the request."
Thank you.
Click to expand...
Click to collapse

General re-locking bootloader problem

I tried for my first time to unlock my phone's bootloader and thought it was something really easy to customize the
phone firmware on the other hand was not what I thought and I don't know much about computer science or customizing a firmware;
and then without being able to install a root or any modification I decided to re-lock the bootloader (because i dont want it anymore) only that I did not succeed with various tutorials and I did not find any for the samsung galaxy a12. I just unlocked the bootloader from developer options settings and ran what the tutorial said on how to activate it without installing a root or customization of anything.
can someone please help me.
bootloader problem said:
I tried for my first time to unlock my phone's bootloader and thought it was something really easy to customize the
phone firmware on the other hand was not what I thought and I don't know much about computer science or customizing a firmware;
and then without being able to install a root or any modification I decided to re-lock the bootloader (because i dont want it anymore) only that I did not succeed with various tutorials and I did not find any for the samsung galaxy a12. I just unlocked the bootloader from developer options settings and ran what the tutorial said on how to activate it without installing a root or customization of anything.
can someone please help me.
Click to expand...
Click to collapse
Which model are you using?
Allehandro said:
Which model are you using?
Click to expand...
Click to collapse
You mean the model code?
bootloader problem said:
You mean the model code?
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Click to collapse
Yeah which A12 model number do you have?
Allehandro said:
Yeah which A12 model number do you have?
Click to expand...
Click to collapse
SM-A127F/DSN
bootloader problem said:
SM-A127F/DSN
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Click to collapse
Well it shouldn't be hard really. How did you unlock it in the first place?
Wait, is it really so hard to lock the bootloader on Samsung devices? Makes me think twice about buying one now if I can't simply lock it with a command like fastboot oem lock.
eclipsek20 said:
Wait, is it really so hard to lock the bootloader on Samsung devices? Makes me think twice about buying one now if I can't simply lock it with a command like fastboot oem lock.
Click to expand...
Click to collapse
It's not hard to relock as its not hard to unlock it.
If you've followed any unlocking bootloader tutorial, after enabling OEM unlock option, you have to enter downlod mode and long press the volume up to enter unlock mode and then procedd to actually unlocking it.
For relocking it, just go to the download mode again, then long press the volume up and you'll have the option to re-lock it.
eclipsek20 said:
Wait, is it really so hard to lock the bootloader on Samsung devices? Makes me think twice about buying one now if I can't simply lock it with a command like fastboot oem lock.
Click to expand...
Click to collapse
Samsung phones have a download mode instead of a fastboot mode, so you can't use commands like fastboot oem unlock
Allehandro said:
Well it shouldn't be hard really. How did you unlock it in the first place?
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Click to collapse
Allehandro said:
Well it shouldn't be hard really. How did you unlock it in the first place?
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Click to collapse
with developer options i activated the OEM unlock option then i turned off my phone and i held the volume up and down with a cable connected to the pc, i went to download mode i held down the volume up and asked me to activate the bootloader and I confirmed by clicking the volume up
bootloader problem said:
with developer options i activated the OEM unlock option then i turned off my phone and i held the volume up and down with a cable connected to the pc, i went to download mode i held down the volume up and asked me to activate the bootloader and I confirmed by clicking the volume up
Click to expand...
Click to collapse
Now go to download mode again and hold down volume up, you'll see option to lock it again
Allehandro said:
Now go to download mode again and hold down volume up, you'll see option to lock it again
Click to expand...
Click to collapse
it worked thank you so much!
bootloader problem said:
it worked thank you so much!
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Click to collapse
No problem. Happy to help

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