Huawei ANE-LX1 After Changing Emmc Network Problem on LTE..

[LoveLess]

hi guys and supporters..

i changed the emmc but device has 4G/LTE network pb.. a few times or randomly 4G/LTE working after a few minutes it is not working anyore.. no calling or no incoming call..

but if i choose the 3G it is working great..there is no network pb..

i used DC-Phoenix Board Software and NV file but still same;

ANE-Full-Repair-NV-included-Board-A039-8.0.0.dgtks
ANE-LX1 NV Partitions Backup File.dgtks

and i used working device all backups which taken by Sigma but still same;

oeminfo
calibration
cert

and another option is used octoplus huawei backup but still same;

fastboot erase modem_secure
fastboot erase modemnvm_factory
fastboot erase modemnvm_img
fastboot erase modemnvm_system

fastboot flash modem_secure modem_secure
fastboot flash modemnvm_factory modemnvm_factory
fastboot flash modemnvm_img modemnvm_img
fastboot flash modemnvm_system modemnvm_system

and finalley i changed the emmc second time.. but nothing changed..

what am i missing.?

btw; i used the "P20 lite_ANE-LX3" dump file for recover emmc on the support...