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The antennas problems with Umi is commom to all versions, included GPS, 4G and WI FI. The problem is very simple to solve. The problem is that the WI fi , 4G and GPL antennas are on the internal mother board plastic cover inside Umi.
You need to remove 1st cover, then this cover and you will see pieces of metal that are not enought up to touch the hardware connections of wi fi, 4g and Gps in the mother board, so once you close this cover you will see this pieces of metal dont touch it or stay only very close to it.
With an precision knife like X-act or other you need to pull this pieces of metal a little up on a way that they touch the hardware once you close it.
After this my GPs started worked more faster and accuratly then ever and 4G internet speed and ping goes to the roof . Amazing !
I have here some you tube videos explain how to open this cellphones and solving the antenna problem as well in a Umi model . In the side of the hardware motherboard it is written Gps . . .
https://youtu.be/TugAXj34JNE
And this one to see how to "Teardown" them ;
https://www.youtube.com/watch?v=vvEF9RToYLg |
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