
- Bosch error code 504 without tuning/ speedbox - EMTB Forums- Sep 25, 2020 · I have now the latest firmware and no more 504 errors since then. When I got the 504 it was FW 1.0.3.0 
- Bosch speedbox 3.0 error 504. - EMTB Forums- May 23, 2020 · Hi guys, my motor has been replaced about 2 months ago because of error 500. I got new motor, i've done about 250 miles so far with speedbox 3.0 and error 504 turned up. 
- Rail (625Wh) - Trek rail Bosch error code 504 | EMTB Forums- Dec 25, 2023 · Jul 27, 2021 folmonty V Error Code 504 Vince L Sep 19, 2020 Replies 2 Views 3K Sep 22, 2020 
- Bosch error code 504. - EMTB Forums- Nov 3, 2020 · The 1st 504 code was cleared and a newer software was installed even though the 85nm upgrade was installed 3 weeks prior. I have made no changes to the motor, such as … 
- Bosch gen 4 cx error code 504 - EMTB Forums- Apr 24, 2021 · Hi error 504 is a tamper code. There is lots of info on you tube about clearing yourself or get the lbs to update to the latest software. 
- Destricting gen4 Bosch without error 504? - EMTB Forums- Sep 25, 2020 · I've posted this before, but in June I had a 504 error on my 2019 Bosch Gen4 Whyte, and I don't run any tuning! A quick trip to my LBS and it was cleared. 800 miles later … 
- Bosch Error 504 With Speedbox 2 - EMTB Forums- Sep 20, 2019 · Hi, New to forum and I come seeking advice! Been running a Bosch Active Line Plus Gen 3 ebike with Speedbox 2 equipped. After 7000 enjoyable miles the drive unit … 
- Warranty after 504 - EMTB Forums- Feb 23, 2024 · I had two 504 errors within a few months of getting the bike, got the firmware update back in April and luckily none since. There's still that nagging doubt in the back of my … 
- Dreaded 504 Error - Trek Rail 2020 - EMTB Forums- Jun 27, 2021 · Do you know what firmware your motor is on? If it’s a 2020 that’s never been updated it could be caused by the old firmware that had a known problem with erroneous 504 … 
- Bosch gen 4 error code 504 - EMTB Forums- Nov 3, 2020 · The 1st 504 code was aftrr the 85nm software upgrade. The LBS cleaeed the code and installed a newer software version that had already been released after the 85nm …