ART-L29 huawei id remove not done
 

******* Dongle Info *******
Version : Hydra Tool v 1.2
Serial : 210700015413
Initialize : OKAY
Status : Activated
Life : 0 [0-0-0-0-1]

Searching Device By Fastboot
Device Found...

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Reading Device Information...
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hotainfo......
#hotainfo_len : 0x0000005E
#C_version : C185
#D_version : D000
#PLMN : 41006
#BoardID : 7544
#DeviceName : ARTH-L29
Build number : ARTH-L29 10.1.0.227(C185E2R2P1)
Product Model : ART-L29
hwnff_ver : Ver2.3
key_version : huawei_key_v1
product : kirin710
system_update_state :
vendorcountry : hw/meafnaf
soc_id :
ro_build_fingerprint :
ro_build_version_full :
ro_build_version_qcom :
psid.........
#SN :
#IMEI1 :
#IMEI2 :

Security Info....
#Dongle_info : RSA-2048,0x9001,0x7000,0x6000,0x5100,0x5000
#FB Lock State : UNLOCKED
#USER Lock State : LOCKED

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Huawei Fastboot Service...
Remove Huawei Account....
Processing...Ok

Elapsed Time : 00:00:02

try to lower version of android then try again