Thank you for your response, I will try to replace the VREG. Does this mean that if I take TPS62130 away, I can power the board directly using 5V pin (with 5V power source) ? I think that firmware upgrade is ok, but I cannot verify it, because PC cannot communicate with V3 or V5 firmware, only with bootloader. I am using Windows 7, with necessary drivers. Initially I tried to use Windows 8.1, but it does not recognize IOIO, not even in the bootloader mode,
torstai, 21. elokuuta 2014 18.56.53 UTC+3 Ytai kirjoitti: > > The failing of the VREG has nothing to do with firmware. It may be caused > by a momentary reverse voltage or high voltage spike. It may also happen > when connecting to a very beefy power supply of >10V over long wires, which > is apparently not your case. > It is likely that what got damaged is the TPS62130 chip (the little square > one close to the JST connector). It can be replace with some reasonable > soldering skills and equipment. Alternatively you can bypass the regulator > and supply 5V directly to the 5V rail, but make sure to measure resistance > there before doing that to make sure the VREG doesn't short. > > Are you positive that the firmware upgrade worked? You can also try to > install the V3 firmware again and see if this changes anything. > > > > -- You received this message because you are subscribed to the Google Groups "ioio-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/ioio-users. For more options, visit https://groups.google.com/d/optout.
