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Rosin Flux left on after soldering GPIO header

Posted: Tue Dec 06, 2016 7:54 am
by jayt80
I'm just wondering if this will be an issue.

I've soldered on the headers to a pizero there is some rosin flux (hard) left still on the board.

Pi turns on and works but i'm wondering if it will effect it at all. The only thing that doesn't work properly is the wifi dongle which is the RTL8188CUS 802.11n WLAN Adapter. It keeps dropping out but have heard these are problematic dongles.

I'm just wondering if the rosin left on the board could add to the Wifi dongle's problems.

Here's a pic:

Re: Rosin Flux left on after soldering GPIO header

Posted: Tue Dec 06, 2016 9:02 am
by drgeoff
No, the flux residue has no adverse effects on electrical performance and is not the reason for the issue with the Wi-Fi dongle.

If you want to clean the flux off, use some methylated spirits and a cotton bud or old toothbrush.

Re: Rosin Flux left on after soldering GPIO header

Posted: Tue Dec 06, 2016 9:59 am
by jayt80
drgeoff wrote:No, the flux residue has no adverse effects on electrical performance and is not the reason for the issue with the Wi-Fi dongle.

If you want to clean the flux off, use some methylated spirits and a cotton bud or old toothbrush.
thanks for the reply. much appreciated. I'm new to all this, but learning lots.