Shimano EW-WU111 (Di2 Bluetooth module) firmware failure & dumb luck resolution

Identical subject right here – half manner via putting in updates on a newly put in EW-WU111 and my Di2 all of a sudden appears to be like fully lifeless.

I acquired this far down the thread – and no pleasure. Unplugged every little thing, even went so far as putting in bootcamp on my mac, so I may join the E-Tube PC software program. The PC app related superb, noticed every little thing and loaded all of it up, however could not proceed as a result of the EW-WU111 hadn’t disconnected from Bluetooth LE.

However maintain studying, as I feel I’ve figured it out.

I am 99.9% sure the cell app subject with the EW-WU111 module is a bug that locks it out of motion, as a result of it hasn’t been disconnected from the app Bluetooth LE connection (LE simply means Bluetooth Low Vitality – nothing to see right here, simply consider it as Bluetooth.)

After crapping out on replace set up (normally round 11%, in line with all the anecdotes on the net), it then locks itself in a loop in which you’ll be able to’t disconnect it from Bluetooth and begin once more.

The rationale the Di2 seems lifeless after the replace failure is as a result of you must disconnect Bluetooth LE from throughout the app earlier than closing it down, to wake the Di2 up. However the app’s crapped out and also you’re locked in a loop.

So when you’ve acquired this far with the varied solutions and you are still scratching your head, strive the next:

1) Delete the E-TUBE app out of your telephone.

2) Go into Bluetooth settings in your telephone, discover the EW-WU111 and inform your telephone to overlook this machine.

3) Reinstall the E-TUBE app. Hooray – it now works and it is prepared to start out putting in once more.

4) This time, maintain your telephone awake whereas it installs the updates – I think the 11% determine is in line with telephones going to sleep throughout set up and the app crapping out because of this.

5) On the finish of the set up, disconnect Bluetooth LE from throughout the E-TUBE app. That is essential – your Di2 will seem fully lifeless in any other case.

5) Think about by no means shopping for Shimano once more – the software program dev, lack of Mac entry and the cell app are merely disgraceful.

6) Go and trip – your bike works once more.