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Unlock Device App does not unlock bootloader

virus42425
Star I
Model: ZC550KL(Max)
RAM: 3G
Firmware/APP Version: WW-13.8.26.98/9.0.0.3
Frequency of Occurrence: Always
Rooted: No
APP Name: Unlock Device App

Last edited by virus42425 on 2019/5/26 17:34 The program does not unlock the bootloader, writes (An unknown error occurs, which may be a network connection issue. please wait and try again later) I have tried: Reboot phone Tried the next day Chance network Facroty reset Update firmware USB debugging enable What am I to do?
5 REPLIES 5

Christine_ASUS
Community Legend II
Hi kieuquanghuy1999
For ZD551KL, there will no longer have any maintenance. Sorry for any inconvenience this may cause. Thank you for your understanding and support.