I just took my Maestro off the shelf, where it has been for about 6 months without use in my shack. I have tried it on several batteries and the supplied PSU with the same result.
The Maestro will not power on - no flash on the screen, no boot - nothing. But if I leave it to sit for 2-3 mins the buttons will flicker and illuminate a few times. I've tried long press, short press, 2 min press (why? I don't know) - and nothing.
The Maestro has had little use and was working perfectly the last time I used it before I put it on the shelf - climate controlled room, no moisture - no reason to believe this is environmental.
I've opened a ticket, and appreciate its the weekend (and a long one to boot!) so I am not expecting a response until Tuesday, but was posting here to see if this is something anyone else has experienced - and was a quick fix possible.
Have a great memorial weekend.
Sure enough, both seemed as dead as rocks. I pushed on their power buttons for 10 or 15 seconds and saw no response of any kind. That was two days ago. I left them plugged in to the AC since then.
I just went out to the garage to check on them and lo and behold, after pressing the power button for 30 seconds or less on each one flashed the display back light for 5 or so seconds, I released the button and then they went dark. Just for fun, I pressed the power button again for 5 or 10 seconds each, and they both fired up just fine.
I powered them down for the night and I expect they are both completely healed. I'm leaving them connected to AC power for a few more days to make sure they are fully charged.
I assume the "internal" battery is the one existing in the Dell Venue that is at the heart of the Maestro. I don't know if this is an issue with the external circuitry of the Maestro or the Dell Venue itself. Without divine guidance from Flex I'm only guessing.
Sometime ago I saw Dell discontinued the Venue so I'm sure Flex is looking for or has found other suppliers for the internal tablet. Hopefully this problem will be addressed in the upcoming Maestro 2 and they will have multiple suppliers. Probably not with the same form factor which drives a new Maestro mechanical and some electrical re-design. I went through this a few years ago when the military wanted "COTS" (Commercial Off the Shelf ) PCs for mission equipment. Within 6 months we couldn't buy the same PC equipment with the same form factor or exactly the same electrical interface.
A lesson learned...
Loving the 6700 and the maestro
Just wanted to get clarification.
My maestro tends to be plugged in to power 24/7 somewhere in the house but was advised the internal battery, as in the user removable needs to be removed and recharged by an external charger, hence why I have bought a number of backup batteries (in transit currently) for the unit to quickly chuck in if running totally portable with no accessible power from elsewhere. Now pls remember, my old service manager said there is no such thing as a stupid question but I feel I may be asking one, and we are defence force contractors for a living, so time is always our biggest challenge to keep up with things.
I assume from what I am reading that the maestro has an internal backup battery that much like an icom ic751 etc can lose everything if not used regularly. Design wise, it would good to see a modification a user could do to combat this , especially being over here in Australia. I also would love to hear about thoughts on powering the Maestro from a vehicle and what anyones thoughts are on this area? We would be fitting into anything from civilian cars to armoured vehicles and more nasty tanks etc.
On charging the internal removable battery, does this problem occur if no power is applied to the maestro while changing the rear battery for a new charged one?
And just to clarify, that removable rear battery has no trickle charge of any description being applied to the battery.
Just need a quick bullet point breakdown for a newbie, mainly usage of rear removable batteries, any pitfalls to watch out for, and the above concerns regarding the Maestro falling into being a very unusuable brick. I suppose the other question is, when on rear removable Battery power only, is the internal battery being effectively charged by the rear battery. also a link to the maestro manual as i grabbed this one from a mate on the mainland over in New Zealand. Also a link the 6700 manual would be great, finding almost everything is very intuitive, well with the help of my good aussie mate Tony VK5TT, but to not be bothering him constantly, I want to be active on this forum as well so he can at least sleep some nights without me waking him haha. We have run some encryption software we use commercially with the 6700 and whilst this is proprietary and I cant say much, the 6700 easily adapted to what we use with some very high end Military equipment and this is where we are looking at further applications for the Flex series of products in the Defense industry that puts food on the table this side.
Cheers Brenton vk3cm
Position and Navigation Systems Pty Ltd Australia