error to reset FRP Y7

problem to reset FRP Y7
LDN-LX2

Code:

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SigmaKey v.2.29.16
623222774 Sigma dongle 2.29, Initializing...OK
Pack 1: Not activated
Pack 2: Activated
Pack 3: Activated
--------- 2019-01-22 11:36:53 ---------
SigmaKey 2.29.16 HiSi: Remove FRP / Huawei ID
Phone model: LDN-LX2
Version: LDN-LX2 8.0.0.150(C636)
Preparing...Data retention error

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