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VascoFerraz
Posts: 80
Joined: Thu Aug 30, 2012 11:54 am

RPi1 with bad contact on the SD card port

Fri Mar 15, 2019 5:27 pm

Hello,

I have one RPi1 which as a bad contact on the SD card port .

That is, If I press the SD card down the RPi1 boots normally.

If I don't press the SD card down the RPi won't boot.

So, before starting re-soldering the SD card port pins, bending contacts... I want to know if this is a know issue and how to correct it.

Thanks.
Vasco Ferraz

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karrika
Posts: 1072
Joined: Mon Oct 19, 2015 6:21 am
Location: Finland

Re: RPi1 with bad contact on the SD card port

Fri Mar 15, 2019 8:52 pm

I broke my Pi Zero SD connector. One way to fix this is to buy a micro SD cart that comes with an adapter. The adapter can be soldered to the board and the microSD cart can be inserted and removed from the adapter. Not the most stylish design but cheap :)
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drgeoff
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Joined: Wed Jan 25, 2012 6:39 pm

Re: RPi1 with bad contact on the SD card port

Fri Mar 15, 2019 9:25 pm

VascoFerraz wrote:
Fri Mar 15, 2019 5:27 pm
Hello,

I have one RPi1 which as a bad contact on the SD card port .

That is, If I press the SD card down the RPi1 boots normally.

If I don't press the SD card down the RPi won't boot.

So, before starting re-soldering the SD card port pins, bending contacts... I want to know if this is a know issue and how to correct it.

Thanks.
Yes, it is a known issue with the full size SD card socket on the early model RPi. Some people reported success with using a thin piece of card as a shim. Others used a clothes peg.

Often the card itself is the reason. Some tend to develop a curve.

If the cause really is a "low" contact in the socket you may be able to bend it back up with careful use of an appropriate implement.

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FTrevorGowen
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Re: RPi1 with bad contact on the SD card port

Fri Mar 15, 2019 11:29 pm

drgeoff wrote:
Fri Mar 15, 2019 9:25 pm
VascoFerraz wrote:
Fri Mar 15, 2019 5:27 pm
Hello,

I have one RPi1 which as a bad contact on the SD card port .

That is, If I press the SD card down the RPi1 boots normally.

If I don't press the SD card down the RPi won't boot.

So, before starting re-soldering the SD card port pins, bending contacts... I want to know if this is a know issue and how to correct it.

Thanks.
Yes, it is a known issue with the full size SD card socket on the early model RPi. Some people reported success with using a thin piece of card as a shim. Others used a clothes peg.

Often the card itself is the reason. Some tend to develop a curve.

If the cause really is a "low" contact in the socket you may be able to bend it back up with careful use of an appropriate implement.
+1 and, there was also this "known failure mode/repair thereof" : http://www.cpmspectrepi.uk/raspberry_pi ... ilure.html which, IIRC, "bad contact" symptoms were an "early sign" of possible/eventual occurrence. (IIRC, the type/make of socket was changed until the new B+ "came along")
Trev.
Still running Raspbian Jessie or Stretch on some older Pi's (an A, B1, B2, B+, P2B, 3xP0, P0W, 2xP3A+, P3B+, P3B, B+, A+ and a B2) but Buster on the P4B's. See: https://www.cpmspectrepi.uk/raspberry_pi/raspiidx.htm

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VascoFerraz
Posts: 80
Joined: Thu Aug 30, 2012 11:54 am

Re: RPi1 with bad contact on the SD card port

Sat Mar 16, 2019 1:14 pm

You all are right.

The SD is a little bit bended.

I gently removed the curvature of the SD and pried up the contacts.

Now it is working again without the need of an extra finger pressure :)

I think this is the reason why this particular Pi1 corrupted frequently the OS. I only own one Pi1.

The other I own is a Pi3 which never corrupted the OS.

Maybe this it is time to replace this Pi1 with a newer Pi3.

Thank you so much all.
Vasco Ferraz

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