• Introducing XDA Computing: Discussion zones for Hardware, Software, and more!    Check it out!

Is my bootloader properly unlocked?

Search This thread


Mar 9, 2017

Following the Magisk installation guide here (and cross checking with other source), once I have unlocked the Bootloader via OEM unlocking in the developer options, I still need to restart the device in download mode and long hold the volume up key. Looking at some bootloader another Samsung bootloader unlocking guide, it seems that there should be a warning screen where I can press volume up to "Continue" (into download mode), long press volume up for "Device unlock mode" (i.e. unlock bootloader) or volume down to cancel and restart the phone.

However, in my case, there is no long press volume up options, and if I try to long press, it would just register the volume up press and directly send me to download mode.

Perhaps as a result, the OEM unlocking option is never "Greyed out" (it does say Bootloader is already unlocked though).

Is this normal on the Tab S4? Does the VaultKeeper service exist in the Tab S4?

(I am on Android 10, March 2021 security update)