Di2 Problem

andydazz · #1 08-03-2020, 10:31 PM

I have Scott Contessa 2013, after I Upgrade the firmware, the bike can't ****ing. The Spec like this :

RD Shimano RD 6770 20 Speed
FD Shimano FD 6770
Shifter Shimano Ultegra ST 6770 20 Speed
Junction box SM-EW67 A-E
Batter External SM BTR1

Maybe somebody can help me to solve the problem, I arlready read at the forum must downgrade but I can't find the old version.

Thank Before

robt57 · #2 08-03-2020, 11:07 PM

Hook up just the battery and update it by itself, then all of it connected. Connect the interface last always. May or may not work.

That said I never plug my sm-pce1 into a PC that is on the internet for 6770 anymore...

andydazz · #3 08-04-2020, 12:39 AM

Quote:

Originally Posted by robt57

Hook up just the battery and update it by itself, then all of it connected. Connect the interface last always. May or may not work.

That said I never plug my sm-pce1 into a PC that is on the internet for 6770 anymore...

I already try only the battery connect to PCE 1 but using internet, now what should I do ?

Downgrade all ? how ? or only the battery ?

robt57 · #4 08-04-2020, 01:07 AM

Quote:

Originally Posted by andydazz

I already try only the battery connect to PCE 1 but using internet, now what should I do ?

Downgrade all ? how ? or only the battery ?

Not sure actually.

stien · #5 08-04-2020, 05:17 AM

Pm Look585, he’s the di2 FW guru.

andydazz · #6 08-04-2020, 06:37 AM

Quote:

Originally Posted by stien

pm look585, he’s the di2 fw guru.

tq

Look585 · #7 08-04-2020, 08:20 AM

This should help. Links to instructions and the proper 6770 firmware file. The downgrade process is a bit clunky so read the instructions carefully.

You are going to "trick" the upgrade process by renaming an older firmware file to appear as a newer release. Then the eTube software thinks it is time to upgrade and installs the older firmware. There is a file for each component, and some have two. You need to rename them all.

https://forums.thepaceline.net/showp...33&postcount=5

andydazz · #8 08-04-2020, 08:59 AM

Quote:

Originally Posted by Look585

This should help. Links to instructions and the proper 6770 firmware file. The downgrade process is a bit clunky so read the instructions carefully.

You are going to "trick" the upgrade process by renaming an older firmware file to appear as a newer release. Then the eTube software thinks it is time to upgrade and installs the older firmware. There is a file for each component, and some have two. You need to rename them all.

https://forums.thepaceline.net/showp...33&postcount=5

Ok I will read and try it, thanks for your information.