중고 구입한 제품인데 롬이 ZUX 1.1.350임
이거 아예 글로벌롬 전환 불가능함?

일단 부트로더 언락을 시도해봤는데,
fastboot flashing unlock_critical은 되는데 fastboot flashing unlock은 안됨

C:\Users\jayde>fastboot oem unlock
FAILED (remote: 'oem unlock fail')
fastboot: error: Command failed

C:\Users\jayde>fastboot flashing unlock
FAILED (remote: 'unknown command')
fastboot: error: Command failed

C:\Users\jayde>fastboot flashing unlock_critical
FAILED (remote: '       Device already : unlocked!')
fastboot: error: Command failed

C:\Users\jayde>fastboot oem device-info
(bootloader) Verity mode: true
(bootloader) Device unlocked: false
(bootloader) Device critical unlocked: true
(bootloader) Charger screen enabled: false
OKAY [  0.003s]
Finished. Total time: 0.003s

혹시 이거 글로벌롬 까는 방법 있음?