How To: Quick-N-Dirty Circuit Board Repair: How to Patch Faded or Corroded Traces with Pencil Lead
You may already know that you can build a functional circuit on a sheet of paper with the graphite from a pencil, but you'd probably never think of using it to fix an electronic device. This same principle can be used to bring back a bricked phone, but can also repair a damaged or corroded trace in a printed circuit board. Redditor 404ClueNotFound spilled water on his favorite computer keyboard (like so many of us have done before). The damage was minimal, but after drying it out, one key still wouldn't work. He didn't want to throw out the whole keyboard over one broken key, so he opened it up to find out what was causing the problem.He noticed a small corroded area on the circuit board and tried fixing it with aluminum and a copper wire, but to no avail. Some research suggested that graphite may be a good conductor, in lieu of expensive conductive ink, so he decided to give it a try. The graphite from a regular pencil was enough to bridge the gap in the circuit and get the key working again.The fix is really simple. All you have to do is draw over the corroded area a few times with a pencil. You can see the graphite a little to the right of the pencil lead in the photo below. This trick isn't just good for keyboards—it should fix light damage to the PCB in other electronics like a GPS, game controller, or remote control. Depending on the design, it can also work for a laptop keyboard if the flexible circuit board isn't too hard to get to due to other components. Just keep in mind that the circuit paths may be printed on both sides.Have you ever tried an unconventional fix like this one? Share it with us in the comments below.
Printed circuit image via Shutterstock
Last year, Facebook helpfully introduced a feature that made individual posts searchable, rather than just people and brands. At the time, search was limited to friends. Now, it includes all
Facebook Public Search: How to Opt Out | Time
time.com/4085131/facebook-public-search-hide-posts/
Facebook is making all of the public posts on the social network easily searchable. The idea is to make it easier for people to follow conversations unfolding in real time, like on Twitter. But
Facebook just made all public posts searchable | Macworld
However, if you prefer the light look, the other option for Android 9 and lower is to "Set by Battery Saver." When chosen, your phone will turn on the dark theme on the calculator app when battery saver is enabled. This allows you to use the preferred look but let you stretch the battery a bit when at a lower battery percentage.
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Using your Android phone with your car stereo (How To) The entry in the Bluetooth devices list should read "Connected to phone and media audio." If not, then press and hold on the stereo's
Google Drive: Free Cloud Storage for Personal Use
Arduino sketch:
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Prepare yourself for a trip back to the days when a Sega Genesis was your gateway to premium gaming. The mid-nineties classic, Comix Zone, has been soft-launched in the Philippines, and while it's not officially available for gamers in the states, you can install it right now with a little hackery.
How To: Download & Play SNES Games on Your iPad or iPhone—No
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On your phone or computer, connect to the FreedomPop hotspot using your WiFi settings. Select the "FreedomPop" WiFi connection and enter the password "freedompop." As you can see, you can also view the amount of data you've used thus far as well as the number of devices connected on the homescreen as well.
FREE Hotspot: No Contract Mobile Internet Hotspots - FreedomPop
How To Hack a 6 Volt Lantern Battery! Update: Based on user's feedback, we noticed that the 6V battery hack (with video below) is a hoax. The 12 V battery hack with the link below is possible
Thirty-Two AA Batteries From One 6-Volt Lantern Battery Video
A kernel is essentially the central nervous system of your phone. Whenever anything is done, like turning down your screen brightness or making a call, Android talks to the kernel and then it connects it to the phone's hardware. A custom kernel has been modded with additional features and speed improvements not found on stock versions.
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