INE-LX1 8.2.0.134(C185 can i downgrade, it will be safe ?

2019-01-09 16:54:12.992 Erase FRP start
2019-01-09 16:54:13.709 Connecting to server...
2019-01-09 16:54:15.129 Connected!
2019-01-09 16:54:35.815 Reading phone info...
2019-01-09 16:54:46.518 Read phone info success!
Firmware ver.: INE-LX1 8.2.0.134(C185
SN: GVV7N18B14007623


2019-01-09 16:54:46.596 Phone info data backup saved to file D:\NCKDongle\UltimateNCKHuawei_Module_v0.316\Ultim ateNCKHuawei_Module_v0.316\Backup\20190109_165446_ GVV7N18B14007623.BAK

2019-01-09 16:54:46.596 Reading Certify data...
2019-01-09 16:54:47.235 Erase FRP fail!

Fastboot command fail!