Yes, it can get fried if you don't press the power button and allow the PMIC to shut down the power rails in order..
Gerald On Mon, Jul 7, 2014 at 9:05 AM, Will Kostelecky <will.kostele...@gmail.com> wrote: > Gerald, who responded to my message, will likely respond to you as well. > The BBB is a great board but it does seem to be very susceptible to getting > fried. I have had two visit the Beagle Hospital. I can only suggest that > posting here in hopes that Gerald gets back to you... > > Regards, > Will > > > On Mon, Jul 7, 2014 at 10:55 AM, <venkat....@gmail.com> wrote: > >> Hey Will, >> I too face same problem on my BBB. Can you please tell me how you solved >> the issue? RMA on beagleboard.org isn't responding, whom should I >> aproach? >> >> On Thursday, 15 August 2013 13:56:41 UTC+5:30, Will Kostelecky wrote: >>> >>> Gerald: >>> >>> Is there any chance that future hardware will include a poly fuse or two >>> to protect the processor or other key circuitry (similar to the Raspberry >>> Pi)? I know that I may have been careless but a board that could get used >>> like an Arduino (which is very very robust) seems like it needs more >>> protection than the BBB has at the moment. >>> >>> In any case, further on the story of a BBB with a blown processor. I >>> am in the UK and have bought my boards from Element 14. You mentioned that >>> you thought they would be able to send a BBB in for repair but when I >>> talked to them they did not think they had this capability. >>> >>> I now have two boards that I have managed to fry. The most recent one >>> as a result of a lead dragging across the battery on a Real Time Clock >>> module with all other power being off. If they can be repaired for less >>> than the cost of a new board I would be glad to pay. I can get the boards >>> to the US as I suspect that will be easier. Can you let me know if they >>> can be repaired at reasonable cost? If so I will request RMAs. >>> >>> Thanks, >>> Will >>> >>> On Thursday, 4 July 2013 15:38:46 UTC+1, Gerald wrote: >>>> >>>> You have blown the processor. Request an RMA. >>>> >>>> beagleboard.org/support/rma >>>> >>>> No fuses on the board. Plugging in the USB and DC supply is totally >>>> acceptable and supported. >>>> >>>> Gerald >>>> >>>> >>>> >>>> On Thu, Jul 4, 2013 at 3:21 AM, Will Kostelecky <will.ko...@gmail.com> >>>> wrote: >>>> >>>>> Help! >>>>> >>>>> My BBB was working fine, great in fact, but not so much at the >>>>> moment. When I plug it into a power source, be it a known good 5v supply >>>>> that I have been using with it for weeks, or into either of two computers >>>>> via USB, I get one dim little flash from the power LED and then NOTHING >>>>> else. No other lights flash. If I hold down the power switch I will >>>>> get >>>>> another brief and dim flash after a couple of seconds. Again, no other >>>>> LEDs light and nothing else happens. >>>>> >>>>> This started to happen when I plugged the BBB into a computer using a >>>>> USB cable while it was still plugged into the 5V power source. Could this >>>>> have fried something? Are there any poly fuses that might come back to >>>>> life after a rest? >>>>> >>>>> Frustrating as I was making such good progress on my project! >>>>> >>>>> Will >>>>> >>>>> >>>>> On Tuesday, 30 April 2013 15:23:23 UTC+1, Gerald wrote: >>>>> >>>>>> You are a pioneer! Columbus was not looking for America. But you are >>>>>> now the Columbus of the power button! >>>>>> >>>>>> I am trying convince the SW folks to add support for the power button >>>>>> but it is down the list somewhere. >>>>>> >>>>>> Gerald >>>>>> >>>>>> On Tuesday, April 30, 2013, Jason Stapels wrote: >>>>>> >>>>>>> An update for the curious. After some prodding from the >>>>>>> all-power-Gerald, I was able to bring the board back to life again by... >>>>>>> are you ready... holding down the POWER button. Which means I'm probably >>>>>>> the biggest idiot ever!? I guess I expected the PWR led to be lit any >>>>>>> time >>>>>>> 5V was feeding the board, regardless of it's On/Off state. >>>>>>> >>>>>>> Certainly, in the dozen or so previous times I plugged the board in, >>>>>>> just giving it power caused it to power on, so the idea of the POWER >>>>>>> button >>>>>>> actually being used to turn it on never occurred to me. If I could save >>>>>>> face just a little here, I did actually press it a couple times before >>>>>>> throwing in the towel, I just didn't consider holding it down for a few >>>>>>> seconds. >>>>>>> >>>>>>> In embarrassed shame, >>>>>>> ~ Jason >>>>>>> >>>>>>> On Tuesday, April 30, 2013 8:19:57 AM UTC-4, Jason Stapels wrote: >>>>>>>> >>>>>>>> Hi all, >>>>>>>> >>>>>>>> Just wanted to share my experience with my dead BBB. It's my first >>>>>>>> experience with the Beagle line so it's possible I did something wrong >>>>>>>> somewhere so I thought it would be a good idea to share my experiences >>>>>>>> in >>>>>>>> case other newb's read this. Feel free to skip to the bottom for the >>>>>>>> symptoms. >>>>>>>> >>>>>>>> -- Begin Background Info -- >>>>>>>> >>>>>>>> I was lucky enough to get my BBB almost right away from Digikey. I >>>>>>>> immediately installed the drivers on my Mac and started playing around >>>>>>>> with >>>>>>>> it the first night. Unfortunately, the second night I couldn't get my >>>>>>>> Mac >>>>>>>> to allocate an IP address through the USB to talk to it so I thought >>>>>>>> maybe >>>>>>>> I shouldn't have skipped that "update software" step. So next I >>>>>>>> downloaded >>>>>>>> the latest "flash eMMC" image, wrote it to an SD card and then went >>>>>>>> through >>>>>>>> the upgrade process. >>>>>>>> >>>>>>>> Here's where things went a little South. After the first attempt >>>>>>>> the USR lights eventually went solid (presumably indicating the >>>>>>>> flashing >>>>>>>> process was finished) but when I rebooted it without the SD card, the >>>>>>>> power >>>>>>>> light would come on but it wouldn't boot. After a couple repower >>>>>>>> attempts I >>>>>>>> decided to flash it again. This time, at some point during the flash >>>>>>>> process, the board seemed to just lose power (all the LEDs were off). >>>>>>>> Attempts to power the board resulted in the same as before, power light >>>>>>>> comes on but no booting. >>>>>>>> >>>>>>>> So, my assumption was I messed up the SD card image. I >>>>>>>> downloaded/reimaged the SD card again, went through the flash process >>>>>>>> and >>>>>>>> this time it seemed to finish. Now when I powered on the board it >>>>>>>> appeared >>>>>>>> to boot up. However, I still couldn't get it to pick up an IP address >>>>>>>> from >>>>>>>> the Mac (after reinstalling both drivers and a couple reboots). I read >>>>>>>> somewhere that someone had a similar issue and an update to Angstrom >>>>>>>> solved >>>>>>>> it. >>>>>>>> >>>>>>>> This time I plugged the board into my linux box and I was able to >>>>>>>> access the running linux image (yay!). I immediately SSH'd in, and went >>>>>>>> through the Angstrom upgrade (opkg update; opkg upgrade). The upgrade >>>>>>>> took >>>>>>>> awhile and seemed to have a few issues with the new kernel modules >>>>>>>> (/lib/modules/blah didn't exist). I figured it was just a warning and >>>>>>>> after >>>>>>>> the upgrade finished I unplugged the board and plugged it back into my >>>>>>>> Mac... >>>>>>>> >>>>>>>> -- End Background Info -- >>>>>>>> >>>>>>>> The power light came on... the USR lights all went solid for a >>>>>>>> couple seconds... and then the board died. I can no longer seem to >>>>>>>> power >>>>>>>> the board up at all. I've tried multiple USB cables, multiple USB >>>>>>>> ports on >>>>>>>> multiple machines, and even tried the DC jack with a 5v/2.2A supply. >>>>>>>> :( I >>>>>>>> submitted an RMA (although my board doesn't seem to have a serial >>>>>>>> number) >>>>>>>> because I don't think I did anything wrong, but I'm a very sad panda >>>>>>>> regardless. >>>>>>>> >>>>>>>> Any ideas? Anything I should check? >>>>>>>> >>>>>>>> ~ Jason >>>>>>>> >>>>>>> -- >>>>>>> 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/groups/opt_out. >>>>>>> >>>>>>> >>>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> Gerald >>>>>> >>>>>> ger...@beagleboard.org >>>>>> g-co...@ti.com >>>>>> http://beagleboard.org/ >>>>>> http://circuitco.com/support/ >>>>>> >>>>>> -- >>>>> 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...@googlegroups.com. >>>>> For more options, visit https://groups.google.com/groups/opt_out. >>>>> >>>>> >>>>> >>>> >>>> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to a topic in the >> Google Groups "BeagleBoard" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/beagleboard/FGeL6jzOcB0/unsubscribe. >> To unsubscribe from this group and all its topics, send an email to >> beagleboard+unsubscr...@googlegroups.com. >> >> For more options, visit https://groups.google.com/d/optout. >> > > -- > 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. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. 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