huawei p20 demo mode

any coreect procedure to remove demo mode


SN:UBV7N18307000xxx
IMEI:86712803072xxxx

IMEI1:867128030732xxx

MEID:A000008C368DFE
Build number: :EML-L29 8.1.0.107D(EUC652)
Model: EML-L29
Battery state: 4245mv


br

Device detected:
COM113: HUAWEI USB COM 1.0 (COM113)
BOOTLOADER File to update: Kirin970_T2_A8.1_V5
OEM File to update: EML-L29
2019-02-20 14:35:20 Starting to write device...

Writing bootloader...
Writing Kirin970_T2_A8.1_V5_3.dtwork...
Writing Kirin970_T2_A8.1_V5_4.dtwork...
Writing Kirin970_T2_A8.1_V5_5.dtwork...

Waiting for fastboot device...
Device found: UBV7N18307000514


Looking for a device in fastboot mode
Device found: UBV7N18307000514


Getting IMEI...
Getting build number...
Getting model ...
Getting battery state...
Getting backdoor info...
Getting lock state info...
Getting lock boot info...

SN:UBV7N1830700xxxx
IMEI:86712803072xxxx

IMEI1:86712803073xxxx

MEID:A000008C368DFE
Build number: :EML-L29 8.1.0.107D(EUC652)
Model: EML-L29
Battery state: 4245mv

Writing OEMINFO partition
OEMINFO partition UPDATE ...OK
Software written
2019-02-20 14:35:58 Writing device finished OK