Replaced ear speaker and battery, now wifi is weak? - Xperia Z5 Compact Q&A, Help & Troubleshooting

Gday all,
My ear speaker died a few weeks ago so I decided to replaced it and put a new battery in while I had the back open. It all went well and the ear speaker is working now. But since I pulled it apart, wifi strength is terrible. I get 1 bar where I used to get 5. The wifi antenna in printed onto the plastic frame that sits around the battery. I realised that when I replaced the battery a broke off a small component:
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It was one of these:
Any ideas on what the component is and/or what it does? The two sets of aerial contacts on both sides of the phone just under these two components seem fine. So I'm a bit stumped.
Any ideas would be appreciated.
Cheers.

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Help identifying component on HTC Mozart

Hi all!
Recently my girlfriend dropped her HTC Mozart and it landed on the edge with the power/sleep button.
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Thanks!
See this thread for slightly better images:
http://www.instructables.com/community/Help-identifying-component-on-HTC-Mozart/
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http://www.handy-ersatzteil-service.de/produkte/Schalter.html
maybe this helps, the buttons are for nokia and siemens phones but they are just smd-buttons so they should probably work if the sizes match

DIY Fix Back Cover Creak

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Hopefully it worked for you, if you have any questions i will do my best to answer them.

[GO] Problem to replace internal speaker

Hi!
Anyone's tryied to unmount and replace the internal speaker of this smartphone?
Last day I had to replace the broken lcd+glass of my sony xperia go, I moved this piece
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from the old glass to the new, I didn't find any kind of cable or connection fort the speaker!
And now the display/lcd works but not so the internal speaker!
I don't know what's wrong and what piece I need to replace, I wouldn't wonder that I've forgot to make some strange connection.
Anyone who had the same problem and who can help me?
Try rotating it by 180° -- I'm not sure about the Go, but the one for the U (which looks the same) it has 2 metal tabs biased to one side...
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Now it's just a matter of ordering new cells, wiring it into the charging board and I should be ok ...
I guess the new cells would have their own charging board, but shouldn't
hurt anything to wire them into the one I salvaged from the unit.
This battery should do, I'll just order 2 of them:
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Defective brick or cable? Use the one that works.
The Samsung 25w brick/cable are cheap and long lived. Using them makes troubleshooting much easier... I have three, the oldest is will be 4yo in October, still A-OK.
When It happened on my device it was because some dirt or fluff got lodged in. I used straw, in absence of canned air, to blow it out

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