Troubleshooting • Re: Arduino Pro Mini/Pi Zero UART communication +...
When working with subsystems being powered off you need to ensure - never apply external voltage to a GPIO of an unpowered system. Meaning your arduino is not allowed to send serial data to your...
View ArticleTroubleshooting • Re: Knocked off R10 resistor from RPI 3B
The missing component is a 240R 1% 0402 resistorStatistics: Posted by RGJ-PI — Tue Sep 29, 2026 2:31 pm
View ArticleTroubleshooting • Knocked off R10 resistor from RPI 3B
Hi!I found an RPI 3B with a knocked off R10 resistor. I was wondering if anybody knows its value. I'm attaching a picture for reference. https://imgur.com/GqfkGARThanks for your help!Statistics:...
View ArticleTroubleshooting • Arduino Pro Mini/Pi Zero UART communication +...
Hello. I’m somewhat of a beginner Raspberry Pi user and am developing an autonomous underwater camera system for coral reef research. The system uses an Arduino Pro Mini as the main controller and an...
View ArticleTroubleshooting • Re: Raspberry Pi 5 FAN PWM stopped working after replacing...
you might check the plug on the PI board, i have seen some report a "bent pin"Statistics: Posted by terribleted — Mon Sep 28, 2026 1:46 pm
View ArticleTroubleshooting • Re: Pi 4 Model B can't connect to WiFi (Zero 2 W can)
Some more info, in case it helps helping me...Raspberry Pi 4 Model B:Code: > iw devphy#0 Unnamed/non-netdev interface wdev 0x2 addr xx:xx:xx:xx:xx:xx type P2P-device txpower 31.00 dBm Interface...
View ArticleTroubleshooting • Re: HDMI related issues
Yet another test :I swapped my SSD inside my USB enclosure for another drive with a fresh install. My main drive is a NVMe drive and my spare drive is a SATA drive (both M.2). The rest of the setup is...
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Troubleshooting • Raspberry Pi 5 FAN PWM stopped working after replacing...
Hi,I'm having a strange problem with the fan connector on my Raspberry Pi 5.I had been using an active cooler for some time and the fan control worked normally. I powered the Pi off, moved it to...
View ArticleTroubleshooting • Fresh install of RPi OS: HDMI No Sound
Sound indicator on top panel is active, but it only selects AV output.AV is untested by me.Code: dragonserw@raspberrypi:~ $ speaker-test -c 2 -t wavspeaker-test 1.2.14Playback device is defaultStream...
View ArticleTroubleshooting • Re: One-off freeze and sudden restart on Pi 400 with many...
You have probably the virus "sys-agent". It sets your screen on black, disable control of keyboard and mouse. Then it restarts to download other malicious stuff. Probably works with the system that it...
View ArticleTroubleshooting • Re: Yet another Raspberry Pi 4 problem with an SSD...
This is the case: https://thepihut.com/products/aluminium ... wer-coolerBoot order is correct - try USB first (SATA adapter is linked by back to back USB connector - then try SD card.Disk loaded using...
View ArticleTroubleshooting • Re: Slow file transfers with scp and rsync
I have since come a lot closer to a solution. I found out the rpi5 is choking if the TCP window grows bigger. By default, TCP window scaling is enabled, and the window sizes are (min/default/max):...
View ArticleTroubleshooting • Re: Wifi stopped working suddenly
I would recommend to start by checking whether the Pi is actually seeing the Wi-Fi adapter. Run `iwconfig` or `nmcli device` and see if the wireless interface is still present. Then check dmesg for...
View ArticleTroubleshooting • Re: Knocked components off Pi 5 8GB
The first image (near TP46) is a 4u7 6V3 X5R 20% 0402 Capacitor. Source: viewtopic.php?p=2365706&hilit=PI+5+Component#p2352563The second image (near TP2) is an 18K 0201 Resistor. Source:...
View ArticleTroubleshooting • Re: Random high load on Pi 4 model B; device locking up
If you're running RPiOS Trixie start by changing the logging to persistant via raspi-config.Next look in the systemd journal not just /var/logI'd also leave a login open running top.Statistics: Posted...
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Troubleshooting • Random high load on Pi 4 model B; device locking up
Hello,Long-time Raspberry Pi user, second-time forum poster...About a week ago my (headless) Raspberry Pi 4 model B started showing extremely high loads at random moments:The Pi then gets so busy...
View ArticleTroubleshooting • Pi 4 Model B can't connect to WiFi (Zero 2 W can)
Hello,Long-time Raspberry Pi user, first-time forum user/poster...This week I happened to discover that my Raspberry Pi 4 Model B, which is connected via an Ethernet cable to my router, is no longer...
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Troubleshooting • Knocked components off Pi 5 8GB
Unfortunately slipped while mounting to a display and knocked 2 components off, 1 cap and 1 resistor. Was hoping somebody knew the values. ThanksStatistics: Posted by Bali95 — Sat Sep 26, 2026 11:55 am
View ArticleTroubleshooting • Slow file transfers with scp and rsync
Hi!A few days ago I replaced my trusty RPi4b LibreELEC device, with a RPi5. Basically I pulled the cables from the back of the RPi4, and plugged them into the RPi5 (except the power lead, I use the...
View ArticleTroubleshooting • Re: Raspberry Pi 3 Model B+ missing SMD component near PoE...
FYI imgur is not available in the UK so your images will not be visible for a large part of the Pi community.Try to attach (reduced) images to your post or select a different image sharing site(See...
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