Spider with 4.1.8.0 sometime boots with white screen

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So once in a while a fez spider with 4.1.8.0. with app deployed boots with a white screen. It doesn’t always happen on the same one, but it occurs on different spiders (we have approx. 150 fez spiders out in the field). After a couple of resets or switch the power off solves the problem and it starts the deployed application.

I can’t imagine this is normal behavior on 4.1.8.0.

All the spiders are powered by a external power source 12v / 1 amp.

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This is normal. Spider display configurations persist but they only change when you add or remove the display in the designer. And they only take effect after the second boot.

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I assume they have a static known application deployed out there and it hasn’t changed of late, and this is just a behaviour you see at random times after many successful restarts, you get this one bad restart?

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That’s exactly what happens, yes.

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which means it’s not the display setup with a new app requiring two reboots to get the settings sorted out…

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Thanks Brett, but is it by design or has someone a clue how to solve this?

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This is a by design.

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@ Gus - I think Patrick is saying this randomly occurs between restarts of the board. And then a subsequent restart revolves the issue.

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Bad cables?

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I don’t think it has to do with bad cables because the spiders are new and I’ve replaced them to be sure. It happens randomly and on different spiders.

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Why not use 4.2? Or at least try it?

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I want to, but till today IFU isn’t available on 4.2. :frowning: The moment IFU is available I’ll switch to 4.2 :slight_smile:

btw: we use the spiders for a RFID based reader (Terminal) And we are currently rolling out our project to 60 different locations (mostly museums) within the Metropolitan Area of Amsterdam in the netherlands.

2 Likes
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@ Patrick - very nice

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Thanks!

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Beer museum is my favorite in Amsterdam. Too bad all restrooms are outside of that one :wink:

Very cool looking terminal!

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some additional pictures. The enclosure is build around a inner module which can be serviced by a technician (IT-Guy)

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Yes, the Heineken Experience is really nice indeed :slight_smile:

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@ Patrick - Very cool! It’s nice to see a commercial project make the forum. We don’t get to see nearly enough of them. Nice enclosure. Good luck!

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@ Patrick - which RFID board did you use?

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Yeah big +1 to the congrats on a cool project that we can all see !