Welcome to Justanswer.com, my name is ***** ***** I will do my best to assist you.
Lets try resetting the device. To do so,
User ResetWhen the unit is turned off, keep the POWER and QUIT keys pressed until you see it ask you to reset all user data.
Choose yes, and let it reset. Once complete. Unplug it from the charger, and try to turn it on.
Dustin S.Senior Technician and Network Switching Systems Operator / Maintainer.
Lets try this self test next
Self TestWhen the unit is turned off, keep the POWER and ENTER/MARK keys pressed until a test page is displayed:
On the left, for vbattery, battary capacity and battery charge, what does it say?
Also on the right did any of the tests fail?
The Vbattery reading gives us a clue as to what the problem is.. Thats your batteries voltage. It should be putting out a mostly solid and steady 8.36 volts.. Some variance there isnt bad, if its .5 volt + or Minus. But dropping all t he way to zero?
That tells us one of three things.
1. The battery is defective.
2. The battery isnt connected properly to the mainboard. ( you could open it and check the clip, make sure its fastened snugly
3. The voltage regulator on the mainboard has burnt out. The main board will need to be replaced.
It should be easy enough to eliminate 1 or 2 as the cause. if you still have the old battery, open the device. remove the battery connector and reconnect it and then check the Vbattery setting again. If it stilll fluctuates to zero. Try the older battery. If the older battery doesnt fluctuate to zero t hen the newer battery is faulty and needs to be replaced. If it also fluctuates, and you double check the battery connection.
You may want to consider replacing the main board, which is extremely difficult to say the least. Probably the largest challenge you would face with replacing the main / logic board. Is finding it for sale!. Used 296 units, even non working used 296 units still sell for upwards of 200$. To replace the unit with an exact model would cost around 600 http://www.ebay.com/itm/Garmin-GPSMAP-296-Bundle-with-ALL-CURRENT-Aviation-Terrain-Obstacle-Databases-/171906929358?hash=item28067392ce
You may be better served with investing in a somewhat newer model ( If it comes down to having to replace the logic board.)
For example, this is a newer model ( compared to the 296 ) and a solid choice. http://amzn.to/1MTVMnL
If you do decide to go for a newer model. Here is what I suggest. List your current not fully functional device on ebay for 400$.. Show that it can boot up, explain that it is for parts, and that it wont run off the battery. If you look at this page and scroll down, you will see that broken units that can still boot up, sell for upwards of 500$ still!
If you take a few pictures showing that the device can boot, you should be able to get 400$ out of it rather easily.
That would cut the cost down on the Aera 500 or purchasing a new Aviation GPS , significantly.
I do hope that youre able to repair t he unit. Maybe its a faulty battery, or the battery connection wasnt solid. If you have further questions or concerns, let me know.
I strive to provide great service, and greatly appreciate a rating of excellent ( 5 stars ) selected and submitted below this answer or at the top right of the screen. I always answer follow up questions.Dustin S.Senior Technician and Network Switching Systems Operator / Maintainer.
Thats actually a good sign.. Did you say you received the battery from Garmin?
Looks to me like the battery was faulted. Maybe consider another battery and contact garmin to let them know the battery was no good.
Heres an alternate battery. http://amzn.to/1i1TTsq
Its third party, and its cheap. Im hesitant to recommend a full cost battery because there is still a chance that theres a fault with the logic board. I would definitely message garmin and get a return or replacement for the battery they sent though. That should more t hen cover the cost of the replacement battery.
My apologies about the note on the clips. I confused which model we were working with.
INstead of the clip, focus on the battery at hand. It has three copper electrical contacts on the bottom of it.
Those contacts line up with contacts inside the battery compartment on the garmin. Try cleaning those contacts with a pencil eraser. And some rubbing alcohol..
That may help it read and use the battery properly.
My apologies for the delay. My shift ended a while back and Ive been at dinner, plus running a few errands.
I wanted to get a reply to you before morning. To be honest, Im not certain what voltage you should be reading from the charging terminals. I dont have a service manual or breakdown in front of me.
At the same time, lets consider trying this master reset..
When the unit is turned off, keep the POWER and OUT, QUIT, NAV/MOB keys pressed for 10 – 12 seconds.
Most likely the same outcome will happen. But its worth a shot just in case this is a fault in the software thats not allowing it to run off battery power.
Hello again, its been a few days since I heard from you.
You never got back to me to let me know if the last reset we tried helped? If it did, please remember to click and submit a rating as this question still shows as unsolved in my work history.
Not a problem Mike. Thats the great thing about email based tech support. You dont have to wait on hold for hours~
I will look for a reply from you this weekend, or when your able to get back to the issue.
If you bought the battery from garmin. And it wont work without AC power after the master reset.
Im afraid at this point its clear you have a lemon battery.. And it needs to be replaced.
Wish I could do more Mike.
This link may be of interest to you. http://ww2.justanswer.com/help/how-can-i-request-refund