Cannot connect to Puck.js after updating Firmware to v1.99 with Windows 10

[espruino-discuss]

Posted at 2018-08-22 by MobiTech

I have a problem to connect to Puck.js after updating the firmware to 1.99. I tried to connect to the bluetooth device via bluetooth device manager on windows. But I always get an error that I should try it again. When I try to connect to beacon using the NRF connect App it works well.

Do you have any idea? Before the update it worked without any problem.

[espruino-discuss]

Posted at 2018-08-22 by Robin

Wed 2018.08.22

Have you attempted to flash using a previous version? If so, did full functionality return?

Try this first though:

Was the Puck connected to another BT device? I believe that step of unpairing has to occur, before re-establishing BT after update. Searching for documentation. . . .

**EDIT**

Ahhh . . . Here it is:

Inside:

http://www.espruino.com/Puck.js#troubleshooting

see: 'Troubleshooting' find:

http://www.espruino.com/Troubleshooting+BLE

beneath the heading: 'I can't see my device any more'

Espruino BLE devices can only accept one incoming connection at a time. When a device is connected to it, it stops advertising and so cannot be connected to until the first device disconnects.

[espruino-discuss]

Posted at 2018-08-23 by MobiTech

Got it by doing a reset after downgrading the firmware and then upgrading it again.

[gfwilliams]

Posted at 2018-08-23 by @gfwilliams

Glad it's sorted - did you do a reset after upgrading by long-pressing the button when powering it on? That can sometimes help.

[espruino-discuss]

Posted at 2018-08-23 by MobiTech

Yes, I did. But I did that already before downgrading and it did not work. The only solution was to downgrading to V1.95, doing a reset, upgrading to V1.99 and doing a reset again. Might be a problem that I upgraded from V1.88.

[espruino-discuss]

Posted at 2019-06-24 by user101316

Thanks Mobitech. works great.
From 1.88 to 2.03 is not possible. You need to first upgrade to 1.95 and then 2.03.

[espruino-discuss]

Posted at 2019-06-24 by @allObjects

From 1.88 to 2.03 is not possible. You need to first upgrade to 1.95 and then 2.03.

...surprise to me... I see nothing mentioned in http://www.espruino.com/Puck.js#firmware-updates

So it must be that before attempting to update directly to 2.03 from 1.88, some application residuals have been left over... Did you do a reset(1) before attempting? But I'm almost certain that not even that is needed.