The current version of the tag broadcasts weather info on a URL, I got to check that with Chrome on iOS. I am trying to switch the firmware now to Eddystone. I have followed the instructions on the setup page to boot the tag in bootloader but I don’t see any source named “RuuviBoot” to connect to. I have now tried both nRF Connect and nRF Toolbox. I also gave the web tool a try with no success.
I have tried to keep the boot button pressed while tapping the R button. This makes the red LED stay solid for a few seconds, not constantly. If I press only the boot button the green LED lits up for a short time. Any help would be great.
You’re trying to enter the bootloader mode correctly. The red LED will be constantly on in bootloader mode, so for some reason the “B” press has not been registered during reset. Please try again, personally I like to take the RuuviTag out of the enclosure when updating so I can press the buttons.
It should not be possible to have a tag with defective bootloader and yet boot to weather station firmware, as the tag starts at bootloader and verifies the application CRC befor proceeding - this should not be possible if something was wrong with the SW on tag.
Only explanation I can think of is some kind of hardware fault: either the nRF52 is not connected to button or button itself is not properly soldered on board.
If you have access to multimeter, could you please check the voltage across the button? It should read ~3 V when button is not pressed and ~0 V when button is pressed.
If the button itself is faulty, it is possible to enter bootloader mode by shorting the B while pressing reset. I did this by setting my multimeter in current mode, measuring current across button and tapping reset.
We’ll send you a replacement tag if the button is faulty, but sending a new tag is not as fast as working around the problem.
Thank you for reporting the issue, I’m looking forward to hearing if the button was at fault. Once we have determined the cause of the issue we can improve the test process to avoid any more similar problems.
Hi @otso thank you for a detailed reply. I will ofcourse try my best to find a solution and do what you have suggested. Fortunately I do have a multimeter to give this a shot. I will come back to the thread as soon as I get time to do this.
I tried to update the firmware today and faced the exact same symptoms. I think that both the buttons work since pressing only Boot does not light up the red led, only the green one after a small wait. But when I press the R button while pressing the B button it caused the red LED to light up instantly. Unfortunately it turns off in few seconds and the bootloader is never activated.
That is what I tried first. I got the red light on but only for a few seconds.
After that I think I tried every possible combination of holding and tapping the buttons I could think of just in case something worked.