Computer on 2020 Como 5 resets time when turned on/off

[jenfeu]

I've searched the forums for this issue, but either I'm not using the correct terms or others haven't experienced this issue. I apologize if it is mentioned elsewhere and hope someone will direct me to any existing threads.

I've had my Como 5 for 2 years and haven't had any issues until this last charging cycle. I took the battery off to charge. After putting it back on, the computer on the handlebars resets every time I turn the bike off. It still seems to be properly keeping track of the miles, but when I turn the bike on to ride, the time always resets to 12:28 - kind of a strange number! I can use Mission Control to get the time set, but I have to do this every time I turn the bike off and back on again - at least when the bike has been turned off for a while. If I cycle it really quickly (turn it on right after turning it off), it keeps the time set properly.

Is there a separate battery in the bike computer? I've looked through the manuals and there really isn't much info on the computer. I have tried taking the bike battery off and putting it on again because I have had problems with the battery not being fully seated before. Mission Control tells me there is a firmware update that I have to go to the LBS to load (really? Isn't there some way to do this ourselves?) But since I haven't had this issue before, it seems odd that this would be the cause of my computer issues.

Thanks for any help!

Jennifer

 

[kahn]

I believe we are stuck with LBS updates for the firmware on our older models. I think that some of the newer models allow folks to do the update themselves.

I don't know all the in's and out's but on my Creo, there is a very small, hard to remove battery in the top tube display. I never remember the initials for these darn things. You unscrew it and remove it and there's a small battery compartment.

But it seems odd that it does not lose your mileage and only resets the clock. I'd go for the upgrade from the shop

 

[jenfeu]

Thanks! It is odd that the mileage is retained. Oh well. I'll try changing the display battery. But I'll also take it to the LBS to get updated (and drool over the newer Como models).

 

[mschwett]

before taking it to the dealer, i’d change the tcd-w battery. (assuming that’s what your como has)

reports are that it’s a CR-1220

Turbo Connect Display Battery Replacement (TCD Lo Bat)

I must be losing a step on my Google-gu. I'm getting a "Lo Bat" on my 2020 Vado 4.0's TCD but cannot find videos on replacing its 2032 button battery. What am I doing wrong? Looks like it's a hard reset when you swap that battery out: all info and pairing is lost. It's not obvious to me how you...

electricbikereview.com

 

[kahn]

before taking it to the dealer, i’d change the tcd-w battery. (assuming that’s what your como has)

reports are that it’s a CR-1220

Turbo Connect Display Battery Replacement (TCD Lo Bat)

I must be losing a step on my Google-gu. I'm getting a "Lo Bat" on my 2020 Vado 4.0's TCD but cannot find videos on replacing its 2032 button battery. What am I doing wrong? Looks like it's a hard reset when you swap that battery out: all info and pairing is lost. It's not obvious to me how you...

electricbikereview.com

How were you about to extract the battery? I tried four different types of tweezers. I could not get anything to grab that slim, small, dime sized battery.

 

[mschwett]

How were you about to extract the battery? I tried four different types of tweezers. I could not get anything to grab that slim, small, dime sized battery.

the OP’s bike has a TCD-W, not the top tube TCU, so hopefully it isn’t as hard to get the battery out!

i’ve never had to remove the one from my TCU. when the time comes, i’ll probably yell a lot.

 

[jenfeu]

Yes, it was easy to get to the battery - just twist the display 90 degrees and it comes off the bike, then I used a flat screwdriver to pry open the battery access. I replaced the battery and all is well. Thank you all for your help.

I took it in for the firmware update too and they charged me $30! I sure wish we could do this ourselves.

 

[jenfeu]

How were you about to extract the battery? I tried four different types of tweezers. I could not get anything to grab that slim, small, dime sized battery.

I was able to pry the battery out with a small flat screwdriver. The battery went flying though!

 

[jenfeu]

Some photos of twisting the display and removing the battery. I see a USB-B micro port in there. I wonder what that is for.

 

[kahn]

Some photos of twisting the display and removing the battery. I see a USB-B micro port in there. I wonder what that is for.

Ah, yes, that battery is easy (kind of).

It is the other battery in the unit I posted pictures of that is nearly impossible to access. While they show tweezers grabbing it. There is no room to insert the tweezers and I tried the very thin ones on my Swiss Army Knife. It is about the size of a dime.