LibrePilot Forum

General Category => General Discussion => Topic started by: TMGsi on February 01, 2017, 06:16:29 pm

Title: Revo withoud firmware
Post by: TMGsi on February 01, 2017, 06:16:29 pm

Guys, I need help.

I was trying to install BetaFlight 3.1.1 in Revo and did not install it. (betaflight deleted everything and installed nothing)

Now the Revo has only the power light (green) and also the LibrePilot does not recognize the Revo anymore, I can not go back to the original firmware.

Thank You.

Title: Re: Revo withoud firmware
Post by: TheOtherCliff on February 01, 2017, 06:32:05 pm

Read about "Revo Unbricking"
https://forum.librepilot.org/index.php?topic=208.0

Title: Re: Revo withoud firmware
Post by: TheOtherCliff on February 01, 2017, 06:33:52 pm

Better yet, here is a wiki article
https://librepilot.atlassian.net/wiki/display/LPDOC/Recover+board+using+DFU

Title: Re: Revo withoud firmware
Post by: TMGsi on February 01, 2017, 07:04:37 pm

TheOtherCliff you are a genius.

Thank you very much.

Salved my Revo.

again, thanks.!!!

Title: Re: Revo withoud firmware
Post by: TMGsi on February 01, 2017, 08:57:31 pm

I had the problem solved in parts.

the blue light from Revo returned after the procedure, but stil the GCS does not recognize the Revo.

See the photo of my device manager. I think now it's windows driver problem?

Title: Re: Revo withoud firmware
Post by: f5soh on February 01, 2017, 09:10:38 pm

https://librepilot.atlassian.net/wiki/display/LPDOC/Troubleshooting

Be sure you uninstall the right composite device.

Title: Re: Revo withoud firmware
Post by: TMGsi on February 01, 2017, 10:41:51 pm

I uninstalled and the problem continues.

My pc does not have any ports configured for Revo when I plug it into the Pc. See the photo above.

Title: Re: Revo withoud firmware
Post by: TheOtherCliff on February 02, 2017, 04:11:37 am

Once you get the blue LED, the next part of the procedure is to unplug the FC, then press Rescue button, then plug board in, then flash firmware (e.g. Upgrade and Erase).

Title: Re: Revo withoud firmware
Post by: TMGsi on February 02, 2017, 06:30:26 pm

I tried this, it did not work.

When I click on rescue and after that I pugged the fc, the computer emits the sound something was plugged in, but the rescue does not detect that the fc was plugged in.

Title: Re: Revo withoud firmware
Post by: TheOtherCliff on February 02, 2017, 08:02:43 pm

First, be aware that you must unsolder the SBL after flashing the bl (=bootloader) (or ef=entire flash).

Not 100% sure, but it sounds like you need to go back to step one and flash a good bootloader.bin (file name should be bl_revolution.bin), then step 2 should work.  Or you can use ef_revolution.bin.

Title: Re: Revo withoud firmware
Post by: TMGsi on February 02, 2017, 10:15:23 pm

 the small bars Tx/Rx close to the connection button
no light when I plugged the fc
but the computer recognizes by emitting the sound of when you plug something.

Title: Re: Revo withoud firmware
Post by: TMGsi on February 02, 2017, 10:19:05 pm

ports (com at LPt)

there is nothing.

was to have?

Title: Re: Revo withoud firmware
Post by: TheOtherCliff on February 03, 2017, 12:10:43 am

even when there is no firmware on it there is a device
when there is firmware a second device soon takes over on boot up
so saying there is a device doesn't prove a whole lot  ;)

try re-flashing the bl or ef