REV3 Dish - Rebooting constantly

[nokodanox]

Hi everyone;

First of all, I'm new here and I would really want to appreciate all the effort, work and reverse engineering that Oleg is doing to the Starlink system.

I need some help with my REV 3 (Gen 2 motorized Dish). To be as short as possible;

- The antenna stopped working properly, it keeps rebooting all the time, uptime less than 3 minutes and always the same "booting" message.
- No physical issues observed.
 - I changed the cable and cleaned the SPX port.
 - I opened the antenna carefully to check if there was some humidity or something, everything seem to be fine in a visual inspection.
 - The antenna is not moving or stow properly. You send the order and sometimes it make it, sometimes not... So I disconnected the motors from the board to make the measurements and tests.
__________

- I'm following the troubleshooting steps that are mentioned in the blog.
 - Installed the "Star Debug" app and checked the state. Always says it's on "BOOTING" condition and it keeps restarting suddenly. Uptime is never 3 minutes up.
 - Checked POE input voltage and the regulator. Both 48v and 12v seem to be good.
 - Checked all the 5 MP8795 voltages and while booting seem to be in good condition 1v and 1.8v.

From this step, I'm a bit lost. Not an engineer and I don't have to much knowledge on electronics so everything I'm doing is following steps and advices. I can make the "POE Injector RJ-45 modification" but I ordered meanwhile the  cable side ZDPR-10V-S so I don't want to be too much intrusive in the motor and SPX (USB).

I wonder if there's a reversible way to open the SPX port (USB) to check the continuity and good status. Seem to be in good condition since in the "Star Debug" app the Ethernet speed it's on 1000Mbps and the POE voltages inside the antenna looks good.

Maybe a failed update or a corrupt software version? Is there a way to inject a clean software from the computer or something? Any advice on what could be happening?

UPDATE:

Uploading resources for more help:
Star Debug - Dish Issue.
https://www.youtube.com/shorts/5qwHaVz580w

Star Debug - Logs
https://mega.nz/file/fgMUlTbT#35G_sloKdqwNel6PesqO318-7zeB1j1kyM4HP5xETag

UPDATE 1:

Upload PDF with all the measures taken from the MP8795 voltages (1,8v and 1,0v). Please, zoom in to check the annotations.

https://mega.nz/file/3x0CUKIA#jNXnBIx10XCAzEqAvDOiA9JT4_UkO0C7GP1EpQaFMJ4

Thank you so much all!

Very best regards.

[Oleg Kutkov]

Hello!

Could you share screenshots from the Star Debug (Dish page) or the debug data file?
(When Starlink is under the clear sky and running about one minute)

[nokodanox]

Hi friend, thanks for your reply on this forum as well as on Reddit and sorry for . I uploaded a video in Youtube and will share the ".json" file from the Star Debug app.

https://mega.nz/file/fgMUlTbT#35G_sloKdqwNel6PesqO318-7zeB1j1kyM4HP5xETag

Hope this helps find what could be happening with this antenna or whatever is causing the Starlink to constantly reboot itself.

Just as little clue if serves; I'm unable to "stow" or "unstow" the antenna, it doesn't moves itself when booting... I had tried to connect without the motors plugged in but it seem to have same issue. Sometimes I managed to "unstow" it but helping it with my hand, but it doesn't rotate or moves without some help.

Could it be the SPX even injecting an stable 48v and saying that the ethernet speed is 1000mb? Tried with a new cable.

Very best regards

[Oleg Kutkov]

Hello.

Your cable and primary power are good, but here is the problem:


The antenna array fails to start. There might be a power failure on some of the MP8895.




Please check that all 1V and 1.8V are present. Some short circuits might be due to physical damage, moisture, or a faulted voltage regulator.

Has your antenna experienced any mechanical overload, or has water probably found a way inside?

[nokodanox]

Surelly it has experienced a mechanical overload taking note that the motors are not working well or without some help...

I will check all these voltages and modules so I will let you know if I find something relevant.

This information is really useful. You are so kind, my friend.

If I manage to solve it thanks to this information I will be glad to make a donation to you.

Very best regards.

[nokodanox]

Hi again Oleg!
Glad to know that your forum is working once again!

I will upload a ".PDF" file with the measures taken from the board following the antenna array. Hope this help us find what could be happening cause it's getting me crazy.   

Very best regards.

https://mega.nz/file/3x0CUKIA#jNXnBIx10XCAzEqAvDOiA9JT4_UkO0C7GP1EpQaFMJ4

[Oleg Kutkov]

Hello!

All voltages and power rails are OK. The SoC or some of the DBFs might have a soldering problem (due to mechanical stress).
You need to remove the black radiator and evenly heat the CPU with a heat air gun set to 390 C.
Move the air gun around the CPU, but don't touch it. Do this procedure for 1-2 minutes. Then, wait until it cools down and check if it works.