I have noticed that the Huawei has GPS signal problem with the new EMUI roms. Some people also reported AGPS issue.
Now I checked the GPS config files, and modified a bit and now it’s faster and more stable. AGPS also works for me and don’t drop GPS signal.
You will need an B5xx/B6xx rom and root access. Then you have these files:
When you downloaded open any root filemanager and copy both into /system/etc (overwrite).
(MOBILE NETWORK MUST BE ACTIVATED!)
May cause battery draining…
GPS satellites signals @my room’s window (stormy weather)