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Need some help repairing DI2

attaturk · 2018-08-10 16:00:19

Hi Crashed my Giant TCR Di2 and did a bit of damage. Long story short ive got all new parts but cant get Di2 working properly. Its a few years old with external battery and small junction box in bottom bracket. Heres the problem..... I can only get either the rear derailleur or front derailleur to work at a time but not…

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10-08-2018 5:00pm

#1
attaturk

Registered Users Posts: 15 ✭

Join Date: January 2010

Posts: 14
Hi

Crashed my Giant TCR Di2 and did a bit of damage.
Long story short ive got all new parts but cant get Di2 working properly.

Its a few years old with external battery and small junction box in bottom bracket.
Heres the problem.....

I can only get either the rear derailleur or front derailleur to work at a time but not both.
Ive tried every possible combination with 4 cables in junction box but when one works the other wont.
Ive completely run out of ideas.

Any ideas or advice would be greatly appreciated.

Thanks in advance

Tagged:

repairs di2

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#2 10-08-2018 5:06pm
ED E

Registered Users Posts: 36,167 ✭✭✭✭

Join Date: February 2007

Posts: 35405

Assume you've seen this?

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#3 11-08-2018 10:13am
8valve

Registered Users Posts: 976 ✭✭✭

Join Date: August 2014

Posts: 904

Save yourself a lot of time by bringing it to a Shimano Service centre. They can plug into the diagnostics and pinpoint the issue. Di2 has a safe mode for post-crash which may be causing you issues..

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