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Forum Discussion
Duo v2 will not boot after firmware upgrade
My ReadyNAS Duo v2 (RND2000-200NAS) was working fine prior to the most recent firmware upgrade (5.3.13). I was able to back up files via rsync from PC and laptop. I could browse media files on the ...
kzalewski wrote:Hi Sandshark,
So, to "jumper" the switch, would I simply touch a wire to both solder points of the Backup button?
Yup, but that's easier said than done becase of the location. With a helper, you could probably hold the wires in place and turn the NAS on, but I don't know how long you's have to hold it there. If it works, you'll want to solder the jumper in place. There is wire glue that would probably do the trick if you are not skilled at or have the equipment for electronic soldering.
OK, here's where I stand on this. I used my multimeter to measure voltage. I first measured it across the Power button contacts, for a reference. When the Power button is unpressed, the voltage reads 3.3V. When I press the Power button in, the voltage changes to 0V, as expected.
So, on to the Backup button. The multimeter is reading anywhere between 0.01V and 0.04V when the Backup button is unpressed. When I press the Backup button in, the voltage changes to 0V, as expected. The question is, does such a low "unpressed" voltage make sense?
At one point, the Backup button voltage got as high as 0.11V on one particular power-on, but it generally stayed around 0.03V.
I used a paper clip to jumper the two contacts of the Backup button, but that did not seem to affect the bootup sequence in any manner.
I'm guessing that the voltage going across the Backup button (unpressed = closed circuit = 0.03V) is too low for the mainboard to detect the pressing of the button as the voltage drops to 0V.
Do you know what the expected voltage is for the Backup button? Is it 3.3V?
I've tried wiping down the mainboard and blowing on the button itself. I don't know what else to do.
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