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how to check bootloder is locked or unlocked?

type this in adb

C:adb>fastboot oem device-info
...
(bootloader)    Device unlocked: true
(bootloader)    Charger screen enabled: false
(bootloader)    Display panel:
OKAY [  0.010s]
finished. total time: 0.010s


if (bootloader)    Device unlocked: true then its unlocked
if(bootloader)    Device unlocked: false then its locked