LTWOO V1.0 Rear Derailleur-- bad. Any ideas

[vito117]

Looks like the motor gone bad.
Green light is good. Charges good, Front derailleur works fine.
App shows both components. Pressing the button on the derailleur for debugging does not move anything.
Bad motor component is my guess.

I emailed LTWOO direct. Nothing back.
Any other options ?
I'd hate to have to shell out another $600.00 for a whole new V3.0 group set when I all need is damned rear D.
AliEx doesn't seem to sell previous version of parts.

[jonathanf2]

Looks like the motor gone bad.
Green light is good. Charges good, Front derailleur works fine.
App shows both components. Pressing the button on the derailleur for debugging does not move anything.
Bad motor component is my guess.

I emailed LTWOO direct. Nothing back.
Any other options ?
I'd hate to have to shell out another $600.00 for a whole new V3.0 group set when I all need is damned rear D.
AliEx doesn't seem to sell previous version of parts.

Long press the RD button several times over. Also reset everything back to factory settings in the app (write down your fine tune settings). Also try re-pairing your shifters and RD several times over. Also try charging the battery in a separate charger if possible. Double check that your shifter battery is still good and check if the RD shifts via the app.

[vito117]

Swapped in new coin battery's for both shifters to rule that out.
Reset app setting to factory.
Left shifter is working the FD fine.
Went into the app and I'm able to work the FD fine. Also in the app I switched the "handing" of operation and the right shifter will work the FD if done so.
Still cant operate the RD from the app or on shifter. A quick red light will flash on the RD if I try.
I'm narrowing this down to motor failure. Since the RD does show on the app?

[Unknownftp]

I'm narrowing this down to motor failure. Since the RD does show on the app?

Same thing happened to me with my v1. It started acting up randomly at first, shifting 5 cogs at once, stayed in the charging status even when not plugged in, went back to normal then started acting up again. Then it finally crapped out and wont shift. Still gonna try some different batteries, but got a steal deal (360usd) on a complete er7 groupo so just going to move to that.

Still trying to trouble shoot the og one just to have a spare but hopes aren't high.

[vito117]

I was able to snag one off DJC Bikes.
https://djcbikes.com/products/l-twoo-er9-electric-rear-derailleur-10-12-speed-32t-aluminium-ltwoo-bike-rear-derailleur
I'm paying $150.00 shipped so not that bad.
It's the version V1 I need too. I had the guy at DJC send me a pic of the derailleur to be sure.

[vito117]

Well, me being the kinda guy who fucking hates a mystery decided to pull the motor as they say.
Looked over the mechanics. No signs of water intrusion however the motor housing seems to lack any O-ring or gasket seal . WTF LTWOO? So they saved a few shekels not waterproofing the most important part of the damn system??..LOL. These things will get wet on occasion. Being such low voltages its impossible to say if the main control board is fried.
So after uncorking it all, I did manage to dislodge the red and green wires so I need to find a micro soldering kit. Or just wait for damned new rear derailleur.
I was able to move the internal gears around to move the main gears &  spindle that swings the derailleur arm.