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So I'm trying to unlock my bootloader to root my phone with Magisk (which also patches VBmeta, which is important for me to do). Originally the OEM unlock option was not appearing in my phone's settings, but I fixed that with the date hack (set the phone's clock to 2022-05-01 instead of 2022-08-05). But now when I reboot into the first stage of download mode, the option to unlock the bootloader does not show up, it just has the option to reboot, enter download mode, or show the barcode. When I enter download mode, the KB status shows as ACTIVE. The CSC I'm using is BTU and I'm on the latest CVG2 firmware of Android 12 (OneUI 4.1).

Any ideas?
 

Zdrawko0o

Member
Oct 11, 2018
49
6
Samsung Galaxy A52 5G
Make sure that USB debugging in developer options is enabled.
Turn off your device.
Hold volume up and down buttons and keep holding them.
While holding them, connect your smartphone to a PC using USB cable.
There will be a warning message.
"... to continue press volume up ..."
Don't just press volume up button, but keep holding it.
 
Last edited:
Make sure that USB debugging in developer options is enabled.
Turn off your device.
Hold volume up and down buttons and keep holding them.
While holding them, connect your smartphone to a PC using USB cable.
There will be a warning message.
"... to continue press volume up ..."
Don't just press volume up button, but keep holding it.
Yeah I do that and the unlock bootloader option doesn't show up. Pressing and holding volume up goes into download mode, as described in the original post...
 

ShaDisNX255

Senior Member
Apr 3, 2014
2,476
1,449
Matamoros
Samsung Galaxy A52 4G
Is the A526B (Snapdragon) as sold in the UK using BTU as the CSC considered a US device?
I'm assuming this question was asked because you weren't getting the option to unlock the bootloader in download mode. Probably the date code wasn't working properly. What I suggest doing is flashing stock firmware with Odin. Completely wipe the phone. Then when you're setting up the phone for the first time, connect to a WiFi network on the setup screen. I've noticed that sometimes OEM Unlock gets bugged when this is skipped and it seems that topjohnwu also caught on to this because he explicitly includes it in his installation instructions of Magisk

Quote from Magisk Installation on Samsung devices:

  • Go through the initial setup. Skip through all the steps since data will be wiped again in later steps. Connect the device to Internet during the setup.

topjohnwu mentions Internet during the setup but I think it's worked for me better when I connect to a Wi-Fi network.

So after completely wiping the phone with Odin I suggest you connect to WiFi on setup and then check your developer settings again. Hopefully, OEM Unlock will be there without the need to do the date trick.
 
What I suggest doing is flashing stock firmware with Odin. Completely wipe the phone. Then when you're setting up the phone for the first time, connect to a WiFi network on the setup screen.
I actually tried that a while back... Had it connected to the internet using mobile data as well as WiFi, no luck. I'll try again in a few days time once my phone has been repaired by Samsung (warranty).
 

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    Is the A526B (Snapdragon) as sold in the UK using BTU as the CSC considered a US device?
    I'm assuming this question was asked because you weren't getting the option to unlock the bootloader in download mode. Probably the date code wasn't working properly. What I suggest doing is flashing stock firmware with Odin. Completely wipe the phone. Then when you're setting up the phone for the first time, connect to a WiFi network on the setup screen. I've noticed that sometimes OEM Unlock gets bugged when this is skipped and it seems that topjohnwu also caught on to this because he explicitly includes it in his installation instructions of Magisk

    Quote from Magisk Installation on Samsung devices:

    • Go through the initial setup. Skip through all the steps since data will be wiped again in later steps. Connect the device to Internet during the setup.

    topjohnwu mentions Internet during the setup but I think it's worked for me better when I connect to a Wi-Fi network.

    So after completely wiping the phone with Odin I suggest you connect to WiFi on setup and then check your developer settings again. Hopefully, OEM Unlock will be there without the need to do the date trick.