Sphere not powering on

Any possible clues? I still have really no idea what could have gone wrong or how to get out of this situation. As far as I can tell I did nothing special to have end up in this situation... Is there any kind of reset possibilities are does no led == dead forever?

Thomas

Are you saying that the green power LED is also off?

I'd suggest close Visual Studio for now, and do a quick check of the status of your starter kit, as follows:

1) Check that the VBAT jumper is still in place on J9 pins 1 and 2 !!!

J9 is located in center of the board, see the yellow box in the image below...

2) Do the relevant ports show-up in Windows Device Manager when you connect the board to your development PC?
(ie. three COM ports plus TAP-V9 virtual ethernet adapter) - a simplified view shown here...

3) What is the board's status from the azsphere command-line interface?

Enter the following commands:

azsphere device show-attached

azsphere device capability show-attached

The "Enable App Development" capability should list in response to this command...

If this capability is not listed (typically as result of the Sphere OS having updated), re-enter the prep-debug command:

azsphere device prep-debug

-Peter

PS: Review again the checklist at the "Troubleshooting installation and setup" page:

https://docs.microsoft.com/en-us/azure-sphere/install/troubleshoot-installation

Hey thanks for the suggestions. I had already checked those articles. And yep Jumper position was OK, didn't touch that one as well, but yes it's OK. Green powerled = dead.

The weird thing: after removing the jumper and putting it back in the same place I could have sworn the leds worked for a few seconds. E.g. green and some orange ones. But then they faded again. I've tried different cables, different USB ports, different computer.... Bah no idea what I've done to make it useless

Thomas

To eliminate the computer for a moment from your debugging, try plugging-in a regular +5V phone charger (ie. one with a microUSB connector)

If the green Power LED does not illuminate, I'd suspect a possible hardware fault with the DC/DC regulator on your board

More likely though, is your USB cable. The power management circuitry on the Starter Kit includes under-voltage detection

A marginal USB power connection can cause an excessive voltage drop that will result in no 3V3 output, and that LED not being illuminated

PS: The full schematic is available for you to download at:
AES-MS-MT3620-SK-G_SCH_2019-07-03

-Peter

I actually have the same problem!!! The board worked fine last night; woke up this morning to a brick! I've tried the same USB cables that I used with my computer (over the last 2 weeks) and a separate USB connect to 5V and a 5V battery (that I use with my iPhone). Similar to Thomas, I swore that I saw an orange LED flicker (this happened when I attempted to connect 5V directly using the +5V- pins).

Any suggestions on how to fix, reset... or even replace my board? I've got $50 of sensor boards coming towards the end of the week, and no device to connect them to!

It looks to be a general problem with this kit. Mine stopped working 3 days ago (reported in Recent Feedback & Support Discussions).

I considered that having hand-touched the back side of the module was the cause. Now it seams it bricks-out by itself.

All mentioned reviving solutions were tested: at no avail. Fortunately it was a free kit.

Maybe next version will be more reliable!

What the FREAK!

I just brought it for Rs.318 and my wallet became blank!

AND WHAT I GOT A DEAD AZURE SPHERE! (Maybe they produced 20,000 defect azure spheres and then thought of putting them  for a giveaway!)

I cant stop thinking about my first development board dead before even doing my first project!

Now I cant even get another board until I start earning on my own!

Check the VBAT jumper is in place on J9 pins 1 and 2

(J9 is located in center of the board)

YES SIR! Its in place but no change I use a USB power from my laptop!