I’ve finally diagnosed all the Pi’s (sort of). I now have them categorised in 4 groups:
- Wont boot
- Working with Damage to USB, SD or GPIO
- Fully working apart from HDMI
- Fully working without Ethernet
As they are all diagnosed – apart from the devices that won’t boot, don’t worry I will be coming back to these. I can now give the numbers on how many are working, repaired or repairable.
|Broken SD card slots||30||0||30|
|Broken USB ports||14||14||0|
|Snapped filter capacitor||10||10||0|
|No HDMI Output||7||0||7|
All of the broken USB ports have been repaired using parts from completely dead boards, whilst I plan on repairing the bulk of the 80 boards that won’t boot at least 20 of them are unrepairable due to board fractures or SOC damage. These have been great for parts although sadly the SD card slots are impossible to remove in one piece.
Re-attaching broken filter capacitors
There was also a fair few boards where the filter capacitor was snapped off the board, although the Pi Model B will function just fine without it I decided to solder them back on.
This is an easy repair although I will reiterate – if this has happened to your Pi and you don’t have any surface mount soldering experience it is not worth the risk of soldering it back on as the Pi will work fine without it.
I am currently waiting on parts to arrive, mainly SD card slots to repair the 30 boards where these are damaged, I expect these to take a few weeks to arrive as they are shipped from China.
The 12 boards with out Ethernet will be picked up in my next post where I will remove the failed Ethernet chips and the ethernet ports essentially turning these into model As. I’m waiting on some solder wick to arrive so it will likely be next weekend when I get the chance to complete this.
I’m not sure what to do with the boards that won’t output to HDMI, due to damaged traces they are not reparable although they function fine headless – maybe I will sell them at a very reduced cost.
Board level repairs will likely start early next month with at least one post per week.
How do I buy one?
As I now have 67 fully working boards you can buy them now although I will only be selling them in pairs. I have a good reason for this, let me explain:
Although I have tested the boards boot and each of the ports work I am conscious that these were at one point customer returns. I will be selling each un-repaired fully working board* along side a repaired board* meaning you should receive two working Pi’s although I’m only going to guarantee that one of them will be fully working.
*The fully working boards passed my diagnostics without any repair needed, they are likely fine and I couldn’t find fault with them but I haven’t tested them for a long period of time.
*The repaired board will have had minimum repairs: USB port, SD card slot or GPIO header replacements.
These are listed on Ebay right now for £15 per pair, I have added worldwide shipping but PLEASE contact me if you are outside of the UK so I can get an accurate shipping cost.
The money from will be donated to the Raspberry Pi foundation once the buyer confirms they are happy with the purchase. This obviously doesn’t include the shipping costs.
I will also send proof of the donation to each buyer.
So if you’ve read the above and you’re happy you can buy two here: