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Raspberry Pi 3 microSD card slot - spring ejection?

Posted: Fri Mar 18, 2016 4:24 am
by ghostm42
Quick question. I just got the RPi3 and notice that it doesn't eject my microSD card when I press into it. All my RPi2's have a spring ejection of the microSD card (as does all my microSD slots I've ever come across). Just wanted to make sure it wasn't a change in hardware. It works just fine, but makes it terribly hard to get the microSD card out when the RPi3 is in a case.

EDIT: I just noticed that the microSD card slot is different from those on my RPi2. Can anyone confirm whether their microSD card slot on their RPi3 is spring loaded?

Re: Raspberry Pi 3 microSD card slot - spring ejection?

Posted: Fri Mar 18, 2016 4:39 am
by Douglas6
The SD card holders on the Pi3 are friction fit. The push-push type on the Pi2 suffered frequent problems.

Re: Raspberry Pi 3 microSD card slot - spring ejection?

Posted: Fri Mar 18, 2016 4:41 am
by ghostm42
Thanks for the response. I actually did find the answer online as well just as you posted.

From:
http://www.theinquirer.net/inquirer/rev ... iew/page/2

"The micro SD slot that provides the storage and boot media for the Raspberry Pi now appears to have changed from a click-in and click-out design to one where the card just pushes in and is held in place by friction."

That's a shame. I eject the microSD card out fairly frequently when I test different installations. In the case, the edge of the microSD card is just flush with the case surface. In RPi2, by ejecting the microSD, it pops out and makes it easy to grab. With the RPi3, I have to fish it out with my fingernails. Oh well. I'll live.

Re: Raspberry Pi 3 microSD card slot - spring ejection?

Posted: Fri Mar 18, 2016 9:37 am
by edo1
I had a lot of issues with B+/2B card slot - unintentional card touch results in a system failure. So I welcome this decision.
Indeed I like SD slot of first RPI. I don't see any advantage of microSD for RPI's.

Re: Raspberry Pi 3 microSD card slot - spring ejection?

Posted: Fri Mar 18, 2016 9:53 am
by jamesh
ghostm42 wrote:Thanks for the response. I actually did find the answer online as well just as you posted.

From:
http://www.theinquirer.net/inquirer/rev ... iew/page/2

"The micro SD slot that provides the storage and boot media for the Raspberry Pi now appears to have changed from a click-in and click-out design to one where the card just pushes in and is held in place by friction."

That's a shame. I eject the microSD card out fairly frequently when I test different installations. In the case, the edge of the microSD card is just flush with the case surface. In RPi2, by ejecting the microSD, it pops out and makes it easy to grab. With the RPi3, I have to fish it out with my fingernails. Oh well. I'll live.
Put a bit of tape on uSD, to give something to hold on to.

Re: Raspberry Pi 3 microSD card slot - spring ejection?

Posted: Tue Mar 29, 2016 1:41 pm
by injurer
That's so simple and so practical. Great advice, jamesh!

Re: Raspberry Pi 3 microSD card slot - spring ejection?

Posted: Wed Apr 20, 2016 10:27 pm
by spidergeuse
I think it's a bit backward to switch from the spring slog type. I currently have the RPI 7" screen which connects to the pi via DSI ribbon cable, which happens to be just over the micro sd slot. Now with everything bolted, it's so fiddly hard to take out sd card, and i do switch cards quite frequently.

Re: Raspberry Pi 3 microSD card slot - spring ejection?

Posted: Thu Apr 21, 2016 12:27 pm
by DougieLawson
spidergeuse wrote:I think it's a bit backward to switch from the spring slog type. I currently have the RPI 7" screen which connects to the pi via DSI ribbon cable, which happens to be just over the micro sd slot. Now with everything bolted, it's so fiddly hard to take out sd card, and i do switch cards quite frequently.
When you've crashed your B+, your A+ and your 2B one time too many by leaning on the SDCard and having it pop out. Then you'll think differently. The SDCard comes out easily (if I need to pull it) with tweezers or with a bit of tape on my 3B and my Zero.

The RPF folks made the right decision.

Re: Raspberry Pi 3 microSD card slot - spring ejection?

Posted: Thu Apr 28, 2016 7:38 pm
by zeth
spidergeuse wrote:I think it's a bit backward to switch from the spring slog type. I currently have the RPI 7" screen which connects to the pi via DSI ribbon cable, which happens to be just over the micro sd slot. Now with everything bolted, it's so fiddly hard to take out sd card, and i do switch cards quite frequently.
I have the screen also (but leaving my Pi2 inside), I keep meaning to get a slightly longer cable (or maybe the existing one will work) and reroute it around the slot. If you look how they made the Astro Pi cases, the cables can be folded:

Image

Re: Raspberry Pi 3 microSD card slot - spring ejection?

Posted: Wed Mar 01, 2017 5:11 am
by Aahicnow
I saw some one suggested using tweezers to remove the micro sdcard I would advise against that as I have destroyed one card already with that advise.

Re: Raspberry Pi 3 microSD card slot - spring ejection?

Posted: Sat Jun 02, 2018 9:35 pm
by pithhelmet
Tried the tape 'hack' to aid in the friction of the MSD card. Still fails with rainbow screen.

Took the same MSD, placed it in the PI2 (with spring ejection) booted right up.

Created a new NOOB distro on two new 8GB sandisk MSD, both failed to load on the PI3, but loaded just fine on the PI2.
I even tried using my MSD card from the SWITCH (they are a little thicker, about .002) but still failed.

i have tried adding pressure on the back and end of the MSD card to see if it just was not seating right, but no worky worky.

I have asked for an RMA to see if maybe i just got a bad board, so we will see.

Re: Raspberry Pi 3 microSD card slot - spring ejection?

Posted: Mon Nov 05, 2018 8:40 am
by TheIconoclast
Indeed it is a big step backward to switch from the spring slog type to the friction. I already broke a microSD card that way. I was not even being negligent. Once inside most Raspberry Pi cases, removing an SD card becomes almost impossible. It didn't break or anything, but once inside an SD card slot, it started melting due the pressure that had previously been applied to it, which was not even anything out of the ordinary. Regardless the microSD card had shorted.

Re: Raspberry Pi 3 microSD card slot - spring ejection?

Posted: Mon Nov 05, 2018 12:31 pm
by hippy
TheIconoclast wrote:
Mon Nov 05, 2018 8:40 am
Indeed it is a big step backward to switch from the spring slog type to the friction.
There is no absolute better or worse though there may be some consensus on which is deemed most desirable for the majority. It really depends on preference and use case.

I prefer spring-loaded push-push over friction push-pull. I have struggled removing push-pull SD Cards, have had to dismantle cases to extract then, and sometimes with great difficulty because I did not want to break the card in the process. But I have also inadvertently caused push-push SD Cards to pop out when not intended.

Luckily I haven't suffered any damage, but both choices can have failures, and both can lead to damage. I personally have had fewer issues with push-push than push-pull but others report differently.

I don't know if failure modes or which is most likely to have problems has ever actually been quantified but pushing a push-pull to remove an SD Card should be less likely to cause damage than pulling a push-push. That is the most common damage I have seen done to push-push sockets.

I would therefore suggest push-push is the best choice only when it can be guaranteed that a pull attempt cannot be made, a push-pull best when it cannot. In that respect the friction fit push-pull choice would seem right for a Pi.

Re: Raspberry Pi 3 microSD card slot - spring ejection?

Posted: Mon Nov 05, 2018 1:06 pm
by aBUGSworstnightmare
If you prefer a push-push type uSD card socket why not simply use one of these https://shop.pimoroni.com/products/micr ... sion-cable

Also 'protects' your RPi's socket from wear-out in case you have to remove the card quite often.Durability of a uSD card socket is in a range of 10k cycles