basmntdweller wrote: 2-Stroke Freak wrote:
basmntdweller wrote:Running battery low doesn't make sense. I have a lipo in my DX-7 and I take it out to charge, sometimes overnight. I have never lost memory. I'd be looking for another problem.
It's not a No Power issue, its a Low Power issue.
How can low power affect something that no power doesn't? That doesn't make sense to me. What is lower power than none?
The way it was explained to me was that the DX7 does a save to memory on a normal shutdown that keeps the firmware intact. If you have an extremely low battery the save does not take place correctly and you get corrupted firmware - if your battery goes completely dead while the power switch is on, you lose the firmware because no save takes place. This could be a simplified explanation, but is what was told to me by one of their techs. Either way, the only fix is to send it back to Horizon to have the firmware reset. I'm not 100% privy to the technical aspects of Spektrum's memory configuration, but there are threads all over RC sites about this happening and the only fix has been to send it back to Horizon.
You can remove your battery and change it out without corrupting the firmware because I believe they use NVM memory (like Gus said, a flash memory version) - power is not required to store the firmware once a successful shutdown and save have been completed - the key phrase being successful shutdown and save.
I know this is an issue with the old version DX7 at least, but not sure about all the Spektrum radios.
I did have an issue myself where I had a bad plug on my DX8 battery and power was lost to the radio while the switch was still on. I did not lose my firmware, but lost all binds to my aircraft and had to rebind each one, so I don't know what the difference with the radio designs are other than the DX8 being a newer generation radio - maybe something they fixed?
I'm not an asshole....I'm just "give-a-shit" challenged.
Quote from gard72977..."It's great to get away to Nashbro...you know, when you're tired of hanging around normal people."