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JK-B2A24S20P BMS Verify Password to enable settings change

That's a shame in one respect, but on the other hand does mean the BMS is relatively secure.

@solarrig You'll have to play the Ali Express messaging system roulette, and remember they work 08:30-18:30 Beijing time.
 
That's a shame in one respect, but on the other hand does mean the BMS is relatively secure.

@solarrig You'll have to play the Ali Express messaging system roulette, and remember they work 08:30-18:30 Beijing time.

It looks like i have no other option. Thank you for the suggestion. Will try it :)
As i understand that code is only for unlocking. Afterwards you can set up a new password ?
 
This morning I finally managed to get a code, they said it only works for 15 minutes but not sure why.

I'm guessing it is a serial number / time related hash. Probably a large window (1 hr?) but the time on your BMS may not be right. So they say 15 minutes. If BMS time is really off, then that would be a real bummer.


Its a terrible system, why they didn't put a reset button on the BMS I don't know,

Two pins somewhere that you short to reset the BMS to factory settings. Seems like a no-brainer to me.
 
If you forget your password to enter BMS, please contact me next to BMS.
I will give you a temporary password. Validity: 15 minutes
If you forget the authorization password to modify the parameters, please open the upper right corner of the BMS to view the BMS information,
The serial number provided to my BMS,
I will give you a temporary password. Validity: 15 minutes
 
If you forget your password to enter BMS, please contact me next to BMS.
I will give you a temporary password. Validity: 15 minutes
If you forget the authorization password to modify the parameters, please open the upper right corner of the BMS to view the BMS information,
The serial number provided to my BMS,
I will give you a temporary password. Validity: 15 minutes
I forgot my jk bms password
 
I tried resetting a JK B2A8S20P to standard setting and control password. BMS is locked as we don't know these two passwords. 1234 and 123456 do not work.
I received a 8 digit code from a supplier. I used that code within 10min. I tried it in the 'setting Verify PWD' and 'control Verify PWD'.
On both it responded with verify permission failure.
Am I using the wrong button/place to reset?
btw, I am using Apple iPhone with IOS.
Unbelievable that JK makes it so hard to reset.
 
I tried resetting a JK B2A8S20P to standard setting and control password. BMS is locked as we don't know these two passwords. 1234 and 123456 do not work.
I received a 8 digit code from a supplier. I used that code within 10min. I tried it in the 'setting Verify PWD' and 'control Verify PWD'.
On both it responded with verify permission failure.
Am I using the wrong button/place to reset?
btw, I am using Apple iPhone with IOS.
Unbelievable that JK makes it so hard to reset.
The code they gave me I just used to change the password, and it worked.
 
Прочетох цялата тема но не намерих верния отговор за сдвояване към bms jk.
Верният код за сдвояване е 1 2 3 4. Дано да съм полезен на някой!
 
For anybody wanting an easier way to get a reset code check out Andy's video.



Прочетох цялата тема но не намерих верния отговор за сдвояване към bms jk.
Верният код за сдвояване е 1 2 3 4. Дано да съм полезен на някой!

It's not the pairing code, it's the settings password that people wanted to reset.

Google Translate:

Това не е кодът за сдвояване, а паролата за настройки, която хората искаха да нулират.
 
I have two B2A8S20P, which worked great from Sept 23 to Jan, this year. Updated the Android app from Play Store in Jan, and Bluetooth pairing login failed. JK has now given 3 or 4 temp/15 minute Bluetooth passwords, which have worked to get into the BMSs, but only lasts those 15 minutes.

The vendor says he'll replace the Bms's, but not sure what brand to go to. This bluetooth issue is nonsense.

Suggestions appreciated.
 
مرحبا، أريد المساعدة. أريد كلمة المرور الخاصة ببرنامج EDMS الخاص لتحديث وبرمجة بطارية السعادة.
 

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