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Troubleshooting • Another knocked off component
Can anyone tell me what it is? I'd be very very appreciative.Statistics: Posted by jaxxfrost — Fri Oct 02, 2026 9:56 pm
View ArticleTroubleshooting • Re: 3B+ won't boot, solid red light, tried everything in...
Do you have a volt meter or multimeter capable of measuring DC volts?If so, measure the voltage between pin 1 (be very careful not to touch any other pins!) on the GPIO header and any ground point...
View ArticleTroubleshooting • 3B+ won't boot, solid red light, tried everything in the...
I have read The Boot Problems Sticky!I have a 3B+ that has been in my closet for some time and I recently pulled it out to tinker. It won't boot, it's just a solid red PWR light. Not even a flash of...
View ArticleTroubleshooting • Bluetooth not working
I'm running the latest version of pios on a pi 3b. I've been trying to connect to a computer using bluetooth and then simulate mouse and/or keyboard inputs as a way to convert a wired device to...
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Troubleshooting • Pi 5 with NVMe SSD over PCIe lagging
I have the following setup. Raspberry Pi5, fresh OS installation, this PoE + M.2 NVMe Hat: https://wiki.52pi.com/index.php?title=EP-0241, with this SSD: https://www.sandisk.com/en-ie/products/ ......
View ArticleTroubleshooting • Re: 6.12.87 upgrade broke my external SATA HDD
Hi,I experienced exactly the same thing as several others in this thread. The overlay line did solve the access problem to my RAID disks, but it wasn't all that was faulty with the new kernel. It...
View ArticleTroubleshooting • Assessing the Severity of the "Undervolt" Problem...
Here's an interesting spin on the good old "Undervolting Power Supply Problem..." - and I'd be grateful for any thoughts, suggestions, or feedback. I have just recently relocated 6 of my Pi4Bs in to a...
View ArticleTroubleshooting • 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...
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