# Scroll pHat not working

**URL:** <https://forums.pimoroni.com/t/scroll-phat-not-working/2509>\
**Category:** Support\
**Created:** [June 16, 2016, 7:11pm UTC](https://forums.pimoroni.com/t/scroll-phat-not-working/2509 "2016-06-16T19:11:00Z")\
**Posts on this page:** 14\
**Page:** 1

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**Author:** ![terrific](https://avatars.discourse-cdn.com/v4/letter/t/e8c25b/32.png) [@terrific](https://forums.pimoroni.com/u/terrific)\
**Post date:** [June 16, 2016, 7:11pm UTC](https://forums.pimoroni.com/t/scroll-phat-not-working/2509/1 "2016-06-16T19:11:00Z")

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Hi,

My scroll pi seems not to be working - anyone have any ideas?  
I went to the github page and followed the install instructions but when trying to run any of the examples I’m receiving this error msg:  
[![](https://cdck-file-uploads-us1.s3.dualstack.us-west-2.amazonaws.com/flex016/uploads/pimoroni/original/2X/c/c7fa24e9792f2d623579354cb48434610bd4f701.jpg)](http://s1070.photobucket.com/user/cobra541/media/1_zpswmnsudgj.jpg.html)

I have been over again with a soldering iron and _think_ all my connections look OK - however on closer inspection the board I received does seem to have tarnished connections - I only soldered some of the pins so the others can be seen:

Any ideas anyone?

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**Author:** ![terrific](https://avatars.discourse-cdn.com/v4/letter/t/e8c25b/32.png) [@terrific](https://forums.pimoroni.com/u/terrific)\
**Post date:** [June 16, 2016, 7:11pm UTC](https://forums.pimoroni.com/t/scroll-phat-not-working/2509/2 "2016-06-16T19:11:32Z")

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Here’s my second img as the first was blocked due to being a new user  
[![](https://cdck-file-uploads-us1.s3.dualstack.us-west-2.amazonaws.com/flex016/uploads/pimoroni/original/2X/8/86d9d925d5961ff7523c6070a35645643dc447bd.jpg)](http://s1070.photobucket.com/user/cobra541/media/2_zps9avyrum1.jpg.html)

ps - it’s fitted to a B+

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**Author:** ![RogueM](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/roguem/32/311_2.png) [@RogueM](https://forums.pimoroni.com/u/RogueM)\
**Post date:** [June 16, 2016, 9:07pm UTC](https://forums.pimoroni.com/t/scroll-phat-not-working/2509/3 "2016-06-16T21:07:51Z")

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Your soldering looks good to me, though I can’t see the state of pin 1&2.

and going by the location of the script it looks like you ran the one-line installer. Did you restart the Pi since (you should have got a prompt to do so) to make the enabling of i2c effective?

you could also try to install python-smbus manually just in case there was a glitch:

```
sudo apt-get install python-smbus python3-smbus
```

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<div class="post-metadata">

**Author:** ![RogueM](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/roguem/32/311_2.png) [@RogueM](https://forums.pimoroni.com/u/RogueM)\
**Post date:** [June 16, 2016, 9:11pm UTC](https://forums.pimoroni.com/t/scroll-phat-not-working/2509/4 "2016-06-16T21:11:03Z")

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actually, on close up I’d say pin 5 (third from left, bottom row) could do with a more generous supply of solder, could be the problem?

Try to get the same finish as you have on pin 3-4, with all the copper engulfed in solder, without overdoing it (i.e making a blob).

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**Author:** ![terrific](https://avatars.discourse-cdn.com/v4/letter/t/e8c25b/32.png) [@terrific](https://forums.pimoroni.com/u/terrific)\
**Post date:** [June 17, 2016, 6:26am UTC](https://forums.pimoroni.com/t/scroll-phat-not-working/2509/5 "2016-06-17T06:26:55Z")

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hi RogueM,

Thanks very much for your posts,

Ok I followed your advice and ran;  
`sudo apt-get install python-smbus python3-smbus`  
And received the message the packages were already installed (have rebooted a couple of times too), then I went back and checked the solder joints and did add a little more solder to a couple, but on trying again I get the same error.

Any other ideas?  
Thanks!

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<div class="post-metadata">

**Author:** ![terrific](https://avatars.discourse-cdn.com/v4/letter/t/e8c25b/32.png) [@terrific](https://forums.pimoroni.com/u/terrific)\
**Post date:** [June 17, 2016, 6:38am UTC](https://forums.pimoroni.com/t/scroll-phat-not-working/2509/6 "2016-06-17T06:38:28Z")

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Here’s an updated picture

##[http://s1070.photobucket.com/user/cobra541/media/3\_zps7swyrj3v.jpg.html##](http://s1070.photobucket.com/user/cobra541/media/3_zps7swyrj3v.jpg.html##)

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**Author:** ![RogueM](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/roguem/32/311_2.png) [@RogueM](https://forums.pimoroni.com/u/RogueM)\
**Post date:** [June 17, 2016, 8:49am UTC](https://forums.pimoroni.com/t/scroll-phat-not-working/2509/7 "2016-06-17T08:49:41Z")

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soldering is fine but I kind of can make out the tarnishing you mentioned now… how bad would you say it it? Did you purchase it directly from us and did it come packaged in an anti-static bag?

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**Author:** ![terrific](https://avatars.discourse-cdn.com/v4/letter/t/e8c25b/32.png) [@terrific](https://forums.pimoroni.com/u/terrific)\
**Post date:** [June 17, 2016, 9:29am UTC](https://forums.pimoroni.com/t/scroll-phat-not-working/2509/8 "2016-06-17T09:29:55Z")

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Hi RogueM  
It is tarnished or perhaps on further inspection, its like the gold(?) plating didn’t stick?  
Here’s a close -up  
[![](https://cdck-file-uploads-us1.s3.dualstack.us-west-2.amazonaws.com/flex016/uploads/pimoroni/original/2X/c/c9c5eecbd5ee08c08396d8301a4f71012ca355e7.jpg)](http://s1070.photobucket.com/user/cobra541/media/4_zpsigpz1oab.jpg.html)

I purchased it from ThePiHut, delivered in a sealed anti static bag (still have it) - arrived this week

thanks!

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<div class="post-metadata">

**Author:** ![RogueM](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/roguem/32/311_2.png) [@RogueM](https://forums.pimoroni.com/u/RogueM)\
**Post date:** [June 17, 2016, 9:52am UTC](https://forums.pimoroni.com/t/scroll-phat-not-working/2509/9 "2016-06-17T09:52:15Z")

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Honestly the copper layer seems badly damaged… not sure how that could happen or pass QA (it wouldn’t have, so degradation would have happened later).

I’m very sure that’s a DOA, sorry about that. Can you pop an email to [support@pimoroni.com](mailto:support@pimoroni.com) and request a RMA… I’d like to get the board back for inspection if that’s OK as that’s quite an unusual scenario, they’ll sort out a new one for you though.

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<div class="post-metadata">

**Author:** ![terrific](https://avatars.discourse-cdn.com/v4/letter/t/e8c25b/32.png) [@terrific](https://forums.pimoroni.com/u/terrific)\
**Post date:** [June 17, 2016, 2:01pm UTC](https://forums.pimoroni.com/t/scroll-phat-not-working/2509/10 "2016-06-17T14:01:29Z")

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Thanks for your message, OK just emailed support.  
Should I mark for your attention?

Thanks again,

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<div class="post-metadata">

**Author:** ![RogueM](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/roguem/32/311_2.png) [@RogueM](https://forums.pimoroni.com/u/RogueM)\
**Post date:** [June 17, 2016, 2:02pm UTC](https://forums.pimoroni.com/t/scroll-phat-not-working/2509/11 "2016-06-17T14:02:31Z")

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mark it attn Gee, please!

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<div class="post-metadata">

**Author:** ![terrific](https://avatars.discourse-cdn.com/v4/letter/t/e8c25b/32.png) [@terrific](https://forums.pimoroni.com/u/terrific)\
**Post date:** [June 30, 2016, 6:10pm UTC](https://forums.pimoroni.com/t/scroll-phat-not-working/2509/12 "2016-06-30T18:10:19Z")

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Hi Gee, have you received the faulty hat?  
I sent it 12 days ago, I’ve emailed support but haven’t had a reply?

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<div class="post-metadata">

**Author:** ![RogueM](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/roguem/32/311_2.png) [@RogueM](https://forums.pimoroni.com/u/RogueM)\
**Post date:** [July 4, 2016, 1:41pm UTC](https://forums.pimoroni.com/t/scroll-phat-not-working/2509/13 "2016-07-04T13:41:53Z")

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I need to check with Gee (I’m not him ha!), but regardless you should have received a replacement unit by now, is that not the case? Have you received any comm at all in respect to the return?

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<div class="post-metadata">

**Author:** ![terrific](https://avatars.discourse-cdn.com/v4/letter/t/e8c25b/32.png) [@terrific](https://forums.pimoroni.com/u/terrific)\
**Post date:** [July 4, 2016, 5:25pm UTC](https://forums.pimoroni.com/t/scroll-phat-not-working/2509/14 "2016-07-04T17:25:45Z")

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Hi rogueM Thanks, yes I’ve had a confirmation email and notification the replacement was sent out today,  
Best regards
