answer....dont update!! I mean why bother when there is rarely any need? If the bike works, leave it alone!! Blutooth is a shortrange device to device comms which is rarely or ever used commercially in professional networks and has no IEEE international standard. The biggest risk of it failing midstream has nothing to do with other phone network connections except those that use the same band...2.4ghz.....like wifi....but you can force wifi to use 5ghz on the latest routers....or switch it off. The main risk is interference from other devices using the same bandwidth...usually other blutooth devices......door bells, baby alarms, some trackers, ...even a faulty ( leaking!) microwave. Blutooth is easilly blocked by solid structures especially metal ones so your best bet ( if you absolutely must do an update that offers you no benefit) is to keep your phone as close as possible to your bike controller and as far away as possible from any other blutooth devices ( yours or a neighbours). In a garage is a good location!