Sunday, 10 July 2016

Sony Xperia Z3C GPS FIX - an Hardware problem



Hi all,
during these months I have had a lot of problems with GPS Fix with my Z3C. These problems occurred after the update to 6.0.1 and I thought that It was a software issue.
In my case, GPS works well after upgrade but It degraded little by little. Applications like GPS Status reported a very very low satellite signal.
Reading every possible forum, I found some guys that explain how to "solve" the problem plugging the usb and powering the phone. An other post specified that the solution was not the "powering" and the fix become better if you lightly pulling the usb connector to you... and It was true! So the problem was not software.

So I opened the phone, disassembled the mainboard from the chassis and tryed to understand what part was involved in the "usb pulling solution".

I found that many connectors (like a little pin) were connected to some particular parts to the chassis (as if it were used as antenna).
In this photo you can see where the mainboard connectors impact on the chassis.
(Sorry the forum prevent me to post link or image)

And this is the specific connector involved in "usb pulling solution"
(Sorry the forum prevent me to post link or image)

It seem that this connector was linked in the edge of connection area, not in the middle as the other connector.
So I gently bent the connector upward and reassembled the phone.
After that, the GPS Status reported a signal very high. Never seen a signal so hight before!
The fix was very fast and the accuracy was constantly under 3mt

I'm not an expert, I'm only a normal user. I hope that this thread can help some other like me that need GPS works very well for run, drive and play.



No comments:

Post a Comment