Bafang M500/M600 Tuning & The BESST Tool

[Puschtrale]

Try different firmware for M500 between CRX10NC4813i142015.8-28-2230-20210805.bin and CRX10NC4810i142050.6-22-1768-20201109.bin , i think CRX10NC4810i142050.6-22-1768-20201109.bin is better and more natural for me. the power is enough and also more battery save. Dont forget to calibrate after change firmware.

Isn't the CRX10NC4810i142050.6-22-1768-20201109.bin a bit too weak? I mean the pre-installed orginal firmware was giving loads of battery life but the motor felt way too weak for steep uphills (this was also stated by Rob in his video with the comparison of the m500 and the bosch motor). Unfortunately Rob never did a new review with the stronger firmware untill now. Many of us changed firmware to the CRX10NC4813i142015.8-28-2230-20210805 that gives good power and still good battery life.

 

[markvanhaze77]

Am i right in saying this is only for M500? I am looking to down tune my M600 in its assists 1-4

 

[Kyokushin]

Am i right in saying this is only for M500? I am looking to down tune my M600 in its assists 1-4

Yes, its for M500.
For M600 there is detuned 15A 48V firmware:

Bafang_M500_M600/Firmwares/Official/Motor/m600/CRX10NC4815i132020.8-20210924.bin at main · OpenSourceEBike/Bafang_M500_M600

Contribute to OpenSourceEBike/Bafang_M500_M600 development by creating an account on GitHub.

github.com

On what firmware on M600 are you?

 

[dvng]

Am i right in saying this is only for M500? I am looking to down tune my M600 in its assists 1-4

Use 14.6..its very smooth and half the power or 46.7

 

[dvng]

Yes, its for M500.
For M600 there is detuned 15A 48V firmware:

Bafang_M500_M600/Firmwares/Official/Motor/m600/CRX10NC4815i132020.8-20210924.bin at main · OpenSourceEBike/Bafang_M500_M600

Contribute to OpenSourceEBike/Bafang_M500_M600 development by creating an account on GitHub.

github.com

On what firmware on M600 are you?

How is this compared to 14.6?

 

[Kyokushin]

How is this compared to 14.6?

Do not know, never used.
I only used this 15A (in M500) and finally went to 46.7 because i want to have strongest assist on lvl5 from M600 firmwares

 

[mgx]

THis detuned firmware for M600, what does it mean? Power ramp limited to 15A? Where? On bottom assist levels, or on top? From my view Luna 14.6 is very power saving fw, not showing real horsepower of the bike. And extra 10km gain is very-very relative. I can compare, but it takes a lot of time

 

[Kyokushin]

peak power is limited to 15A instead of 18A, thats what i am sure. Unfortunately cant say more, in my opinion the 46.7 is requiring less strength on pedal on lvl 5 to get max power output, i have no comparison to other.

That whould be great if you could compare it to other f/w. I tried that in M500, so my output will not be clearly valuable.

 

[markvanhaze77]

Yes, its for M500.
For M600 there is detuned 15A 48V firmware:

Bafang_M500_M600/Firmwares/Official/Motor/m600/CRX10NC4815i132020.8-20210924.bin at main · OpenSourceEBike/Bafang_M500_M600

Contribute to OpenSourceEBike/Bafang_M500_M600 development by creating an account on GitHub.

github.com

On what firmware on M600 are you?

Stock or whatever I had on it when I got the M600. I was looking into hooking up the BESST tool later this week when I get to it.
Overall I feel assist 1 is just too much for my liking, 2 and 3 seems to be too small of a step and 4 is massive. Anything beyond is not really ever needed. Overall, for me, I could have used a smaller motor just as well but I didnt have any comparisons when I ordered mine except for BBSHD2 and those are very different anyway.

 

[temon10]

There is a need for calibration after firmware change? Never did that…

once i try change firmware without calibration motor sound weird when pedaling, at forst i thought it broked. than i calibrati sound back normal. that my experience.

 

[temon10]

Isn't the CRX10NC4810i142050.6-22-1768-20201109.bin a bit too weak? I mean the pre-installed orginal firmware was giving loads of battery life but the motor felt way too weak for steep uphills (this was also stated by Rob in his video with the comparison of the m500 and the bosch motor). Unfortunately Rob never did a new review with the stronger firmware untill now. Many of us changed firmware to the CRX10NC4813i142015.8-28-2230-20210805 that gives good power and still good battery life.

initial stock firmware was CRX10NC4810i142015.5-20191126.bin ....realy so weak...than i direct change to 13A, feels day and and night and for me its too powerful. at last i found that CRX10NC4810i142050.6-22-1768-20201109.bin is suitable for me. for sure each of us had different feeling.

 

[TeoElFeo]

Hi guys!

Just finished building my dengfu bike and ordered the BESST tool to change the firmware and limits. Unfortunately I cannot get the bypass script work on my windows for some reason....
I have installed python 3.9 and installed the additional package simplejson. I have amended the hosts file accordingly. When the script starts it confirms that the bafang domain redirected to 127.0.0.1 and tells 'starting httpd...' So all seems fine until here.

However, when I start besst(1.2.26) and enter random login data, the script doesn't write 'got post from Besst..' or anything at all. The BESSt app tells me 'user not exist'. I have tried to use different versions of BESSt with the same result.. Turning off my Windows firewall didn't help either.. tried logging in with network off, but the app recognises that.. Did somebody have a similar issue or know what might be the problem here?

 

[mgx]

Use BESST 1.2.18, this works every time .
First check if your python script is running and not showing any module errors. if yes, you need to fix them. start python from cmd.exe

-> see check_begin

then launch beest, enter random login/pass
in python there is auth.logs visible.

share them

 

[Kyokushin]

ist good to have a snapshot of VMware Virtual Machine wtih opened besst. It will be usable forever

 

[TeoElFeo]

Thanks for your advice! So I have done the troubleshooting. No errors in the script, just stuck in the same page. The version 1.2.18 didn't help either... Another question: does the app login work without the actual tool connected(still in delivery)? I would assume that shouldn't be an issue, but who knows? Has anybody tested this?

 

[mgx]

You have a problem with hosts file. Be sure, that your windows hosts file (located in System32/drivers/etc/hosts (not hosts.txt - typical error!!!) must reply to

ping test.api.besst.bafang-service.com with 127.0.0.1 which is localloop, not with bagang IP!

this is how it should look like

I can fix it remotely if you cannot, but it will cost you a beer...just sent me meeting id and i can have a look.

record in hosts file (not hosts.txt, just hosts) should look like this

127.0.0.1 test.api.besst.bafang-service.com

 

[TeoElFeo]

Thanks again for the speedy reply. It has worked! I have realized the mistake. The hosts file was in the right format. But I had the domain set to api.besst.bafang-service.com instead of test.api.besst.bafang-service.com... That was suggested in the readme for github.. Also I have tested that before, but when I saw the script wrote 'test.api.besst.bafang-service.com forwards to 139.196.174.48' instead of 'test.api.besst.bafang-service.com forwards to 127.0.0.1' I have changed it back to how it was, assuming the IP was of the real server and not the localhost.. Mystery solved!

 

[mgx]

Happy to hear that, even my beer is gone . Happy upgrade!

 

[TeoElFeo]

Continuing my Bafang tuning journey : )I was able to update the firmware, but was unsuccessful in changing the speed limit even despite reading the S/N. Downgrading the software to 1.2.18 solved the issue!

 

[mgx]

use version 1.2.18 as I sayd, its working there. i think in 1.2.26 it was also not working for me.

 

[ficorama]

does anyone sell besst tools? thank you

 

[mgx]

yes, have it from here...

Bafang Gereedschap kopen bij HBS

Bafang Gereedschap online kopen? Het grootste Bafang Gereedschap

hollandbikeshop.com

 

[ficorama]

Hello everyone. I ordered a besst tool. please if anyone has time to explain to me or send me a link how to login to besst program. I searched the forum but it's hard to find. thank you

 

[patdam]

easy If you speak french

https://www.arcadecycles.fr/wp-content/uploads/2021/06/FR_Manuel_BESST_Version-Diagnostique_03232020.pdf

or translate

 

[ficorama]

easy If you speak french

https://www.arcadecycles.fr/wp-content/uploads/2021/06/FR_Manuel_BESST_Version-Diagnostique_03232020.pdf

or translate

thanks for the effort. google translate works . finally that I have started from something.

 

[ficorama]

easy If you speak french

https://www.arcadecycles.fr/wp-content/uploads/2021/06/FR_Manuel_BESST_Version-Diagnostique_03232020.pdf

or translate

how to get username and password?

 

[patdam]

how to get username and password?

normally only your BESST tool supplier can request password from bafang. But i have read that existing other way (personally not use) look for here or on endlessphere

 

[Kyokushin]

how to get username and password?

Its better to use the workaround described on the forum because then you will get not restricted access to besst functions

 

[ficorama]

Its better to use the workaround described on the forum because then you will get not restricted access to besst functions

can you tell me where it is described on the forum? thank you

 

[Kyokushin]

can you tell me where it is described on the forum? thank you

You need to follow the below manuals - it will help you to set up the BESST without the password.
You need to unplug the controller cable from display, connect it to besst and besst to display

Manuals:

Bafang M500 - BESST and limits

same as mine, i had same firmware initially. Bafang support told me its different, but i have not verified that. If it is different, presumably smaller, could this make a difference to potential safe/non-damaging power output peak levels?

www.emtbforums.com