No WiFi connection

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Kurt
Posts: 10
Joined: Sun Oct 27, 2019 8:10 pm

Re: No WiFi connection

Post by Kurt » Wed Nov 06, 2019 12:37 am

In one of the post it is suggested, to use a power source with sufficient amp output, what is the output suggested for this device.

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Ji.zwo
Posts: 160
Joined: Tue May 29, 2018 3:29 am

Re: No WiFi connection

Post by Ji.zwo » Wed Nov 06, 2019 2:13 am

Kurt wrote:
Wed Nov 06, 2019 12:37 am
In one of the post it is suggested, to use a power source with sufficient amp output, what is the output suggested for this device.
W7AY means to power the ASIAIR with enough voltage and current, it should be 5V@3A.
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Kurt
Posts: 10
Joined: Sun Oct 27, 2019 8:10 pm

Re: No WiFi connection

Post by Kurt » Thu Nov 07, 2019 3:25 am

So I picked up a new card reader, and downloaded the SD formatter, put SD card in new reader, formatted, appears the the OS wrote to the card 100%. Hooked up the Air to different power supply, getting WiFi connection, app says license check failed to take a screen shot, and send it to zwo support, hopefully I took screenshot of the right thing, appears that I may be making some progress.

W7AY
Posts: 107
Joined: Fri Jan 25, 2019 3:38 am
Location: Portland, Oregon, USA

Re: No WiFi connection

Post by W7AY » Thu Nov 07, 2019 4:00 am

Great to see the progress, Kurt. I am pretty sure it will all work once ZWO sends you the license file.

However, if you are impatient and still have the image from the original saved file on your computer, you can mount the image file (it mounts as a volume named BOOT) and find a file called zwoair_license (just a text file) in that volume.

If you can see the zwoair_license file, you can copy that file to your new card, and that should allow the ASIAIR OS to boot up completely. While you are at it, save that file somewhere, in case you need it again the the future.

Every ARM chip (like the one used in the Raspberry Pi that forms the hardware component of ASIAIR) has a unique processor ID. Part of that unique ID shows up as the eight hex digit in the ASIAIR serial number. You can see the ARM processor ID by attaching an HDMI display to the Raspberry Pi HDMI port.

From what I can tell, ZWO uses a one-way encryption on that eight hex digits and place the encrypted string into the license file. When the ARM chip boots up, its processor ID is passed through the same one-way encryption algorithm, and the ASIAIR OS compares the result with the string that is in the license file. If the two strings match, the ASIAIR will complete its booting process.

It is the ARM chip's unique processor ID and the license file with the one-way encrypted string that ensures the ASIAIR cannot (practically) be bootlegged.

Chen

Kurt
Posts: 10
Joined: Sun Oct 27, 2019 8:10 pm

Re: No WiFi connection

Post by Kurt » Sat Nov 09, 2019 5:24 am

Thanks for everyone’s help, I appreciate it, was able to get the license installed, and the firmware appears to have updated successfully, now all I have to do is get outside and test it out.

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