EML-L29 how to remove FRP with Sigma

Getting this error when removing the FRP on this model:

SigmaKey v.2.28.03 build 01
285488850 Sigma dongle 2.28, Initializing...OK
Pack 1: Activated
Pack 2: Activated
Pack 3: Activated
--------- 2018-07-11 17:23:42 ---------
SigmaKey 2.28.03b1 HiSi: Remove FRP / Huawei ID
Phone model: EML-L29
Version: :EML-L29 8.1.0.106(C432)
Internal error 0666