Home › Display settings › Bafang C961 / C965 (older BBS displays) › Bafang C961 / C965: password and 8018

Start-up password and service code on the Bafang C961 / C965

Bafang C961 / C965 (older BBS displays)

The C965 can require a 4-digit code at power-on; the service code 8018 opens the Advanced menu on stock firmware. The C961 has no start-up password on most builds.

Step by step

  1. Switch on, then hold + and − (up and down on the C961) together for about 2 seconds until the settings screen appears.
  2. C965: step to Password → Enable, enter four digits with + / −, confirm each with power, repeat to confirm.
  3. To remove: Password → Disable, enter the code.
  4. Advanced menu (C965): from the settings screen hold + and − again for 2 seconds; enter 8018.
  5. Advanced holds Wheel Size and Speed Limit on locked units; edit, then Exit.
Tip: These codes are published in the manufacturer manuals and on every dealer forum; they are not secrets, but the settings behind them can make the bike illegal or damage the drive, so change one thing at a time and note the old value.

Can't find it?

Forgot the start-up code: no handlebar reset. BESST at a dealer or a new display (C965 displays are cheap second-hand). Codes 1919 / 0512 are for other display families and do nothing on Bafang.

Frequently asked

C961 asks for a code?

Rare OEM firmware; try 0000, 1234, 8018.

Is 8018 illegal?

No, it is Bafang's documented service code. What you set behind it can be illegal.

Does the code stay unlocked?

No, enter it each time.

Manuals and video

Videos found on YouTube and checked automatically; they are other people's work, not ours.

Other Bafang C961 / C965 (older BBS displays) guides

Bafang C961 / C965: switch km/h and mphBafang C961 / C965: set wheel sizeBafang C961 / C965: 3, 5 or 9 levelsBafang C961 / C965: speed limitBafang C961 / C965: backlight brightnessBafang C961 / C965: lights
Still stuck? Take a photo of the display and show it to a local e-bike workshop. Bring the bike's system name (e.g. Bosch Performance Line CX) and the exact code; that saves diagnostic time and money.