Di2 multishift issues - Setup 6770 with external battery and old Junct-A

[ixiz]

I had issues with setting up a friends bike to do multishift and change the speed of shifting using the PCE-1 hardware.

I was able to upload all the new firmware to date (08-22-16). Had some issues programming the rear deraillur till i did a master reset using Junction Box A

But
I was unable to setup the bike with multishift and or changing the shift speed.
When i try to upload the new setting its say incomplete and check battery if its disconnected - If its connected hit next -> Battery was connected and was functioning before and after the PCE1 link. Battery was new and fully charge as well.

Anyone had this issue ? (yes older 10 speed - 6770)
Anyone resolved this issue ?

Thanks for any advice

Shimano tech did not have any solutions as well - called their tech support

Same setup (my bike also 6770)
Have no issues - (only difference is his external battery mount has hard wire to the mount and mine has a wire that can be disconnected (to the mount)

Thanks in advance.....

[jbeattie]

Try this: http://www.bikerumor.com/2013/10/23/how-to-update-shimano-di2-to-multishift-customize-button-function-change-shift-speed/

-- Jay Beattie.

[ixiz]

Ive done that
I think the new firmware screwed it.
My same setup no issues and im afraid to go to new fw

[rjc...@gmail.com]

Did you get resolution?

I just did firmware update to all 6770 components, and battery, and now the system says it does not recognize the battery, and the system will not work.
Shimano is having me take it to a dealer (Good luck for me finding one that understands Di2 properly)

THX