SD Card access is intermittent

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    User avatar
    Simcheck
    Posts: 5
    Joined: Mon Sep 11, 2017 4:01 pm

    Wed Oct 04, 2017 4:17 pm

    First our application. We are using a 4G/64G LattePanda to control a small telescope mount and camera for portable operation in remote locations. So far we are able to connect everything and run through the various processes EXCEPT that the SD card we use for storing images and other data is very unreliable in terms of it being available during a session.

    The config:
    4G/64gb S70CR200 3.05 LP running Win 10 Ent (not LTSB) Build 1703
    BIOS - Core 5.011 UEFI 2.4 3/23/17

    The problem:

    SD card is inconsistently available. Sometimes on launch of Win 10 it shows up as available drive. Other times it doesn't. Even when it does show up it often mysteriously disappears in the middle of a session.

    What we have tried:

    The initial LP was purchased with LTSB 1607 - We upgraded to full Ent 1703 but problem persists.
    We tried multiple brands and sizes of SD card. Same problem.
    There are no error messages in Device manager for Storage devices. Attempting to update driver gives routine already have latest driver.
    We have reviewed other forum posts and have not seen anything we haven't tried already with the exception of updating the BIOS.

    We have a commitment for this rig at a remote location in two weeks. If we cannot get this to run reliably we will have to resort to returning to a full size laptop.

    Any help or suggestions would be greatly appreciated.

    Bob

    User avatar
    ED209
    Posts: 222
    Joined: Tue Apr 19, 2016 3:31 pm

    Sat Oct 07, 2017 3:52 pm

    I think it sounds like the bios driver problem. I didn't put the enterprise on my panda yet. Did you get the LattePanda official enterprise 4G board? Or you get the un-activated version and upgrade the system ourself?
    A simple alternative solution will be use a MicroSD to USB converter to drive the MicroSD via USB3.0, which will be faster I think!

    User avatar
    LattePanda
    Site Admin
    Posts: 2570
    Joined: Wed Jan 20, 2016 9:09 am

    Mon Oct 09, 2017 9:48 am

    Hi,
    How is everything going? :)
    Enjoy Tinkering with LattePanda ! :lol:

    User avatar
    Simcheck
    Posts: 5
    Joined: Mon Sep 11, 2017 4:01 pm

    Mon Oct 09, 2017 2:53 pm

    Thanks for the responses. I think we have it resolved. Hesitated to reply until we had used it for several days since the problem had been intermittent.

    First yes this is the 4G enterprise board with Enterprised LTSB preinstalled. We had the problem with that initial config. It was recommended we upgrade to build 1703 which we did but the problem persisted. Late last week we reinstalled all the drivers which I assume have been updated since the original release. At any rate since then and with multiple on / off cycles the SD card has been rock solid. So unless it mysteriously starts occurring again I think the problem is solved.

    This week will be the crucial test as we do the final configuration of equipment with LP. And a few dry runs here locally.

    Thanks for the help,

    Bob

    User avatar
    LattePanda
    Site Admin
    Posts: 2570
    Joined: Wed Jan 20, 2016 9:09 am

    Tue Oct 10, 2017 2:53 am

    Simcheck wrote:
    Mon Oct 09, 2017 2:53 pm
    Thanks for the responses. I think we have it resolved. Hesitated to reply until we had used it for several days since the problem had been intermittent.

    First yes this is the 4G enterprise board with Enterprised LTSB preinstalled. We had the problem with that initial config. It was recommended we upgrade to build 1703 which we did but the problem persisted. Late last week we reinstalled all the drivers which I assume have been updated since the original release. At any rate since then and with multiple on / off cycles the SD card has been rock solid. So unless it mysteriously starts occurring again I think the problem is solved.

    This week will be the crucial test as we do the final configuration of equipment with LP. And a few dry runs here locally.

    Thanks for the help,

    Bob
    Hi Bob, nice to know that you have solved the problem.
    hope the next test could be fine. Good Luck. :)
    Enjoy Tinkering with LattePanda ! :lol:

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