Without knowing what exactly the damage is, I can't tell you what caused it.
My suggestion is to send it in and let us figure out if we can what happened. http://www.elinux.org/Beagleboard:BeagleBoneBlack Gerald On Thu, Sep 3, 2015 at 6:14 AM, <matthiasschneide...@gmail.com> wrote: > Hi, > > apparently I must have somehow damaged my Beagle Bone Black Rev C. > At the time the device was damaged, only GND, VDD_3V3B, VDD_5V > and Ethernet were connected, so I am sure it was not overvoltage at > one of the GPIO/AIN pins (got my experiences with that already). > The current state of the device is that the power LED turns and stays on > when connected via VDD_5V, but the device does not boot or turn on > the VDD_3V3B rail. When connected to a USB power supply, > the power LED flashes only once. My power supply providing the > 5V DC is based on the TPS5430/31EVM-173 3A Regulator Evaluation > Module BY Texas Instruments, which has worked nicely so far. > > There is some (currently unused) circuitry connected to VDD_3V3B. > Any ideas what could have caused the damage? I had stumbled over > the problem with unreliable start ups with long VDD_5V rise times > previously (although I have not seen it for some time), but I was under > the impression that this was a non-permanent issue that could be > resolved by repowering the board. Is there something that might > permanently damage the BBB when simply powering up and down? > > Thank you in advance, > > regards, > > Matthias > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to beagleboard+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- Gerald ger...@beagleboard.org http://beagleboard.org/ -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
