Request: Developer PIN - CC3 2K keeps wiping user data

• CC3 2K
• Mazda 6
• developer PIN
• problem
• hopeful

• UK

  Urmas Kungla

  11/8/25, 3:50 AM

  Hello Teyes Support and community,

  I am using a T’EYES CC3 2K (UMS512 / SC9863A) head unit in my Mazda 6 2013 GJ/GL (BOSE, CAN L6315).

  Firmware info:

  • FM_BASE_19C_W20.52.2_P18
  • MARLIN3_20A_W24.21.3
  • MCU TZY_53_L6315_G23P48F64_3G_E60_V1.0R

  Problem:
  After the car is parked for 24–48 hours or the battery drops below 11.8V, the system wipes user data. This is not a full factory reset but a partial one:

  • Google accounts (Gmail, YouTube, Play Store) are logged out
  • Bluetooth and CarPlay pairings are deleted
  • App settings and ZLink/CarLink profiles are reset

  It seems related to the Smart Sleep or Cleaner service in the Marlin3 Lite firmware.

  What I have tried:

  • Adjusted power settings (Power Conditioning, Factory menu)
  • Disabled all auto-cleaner and optimization apps
  • The data wipe still happens after every long shutdown or voltage drop

  Request:
  Could you please provide one of the following:

  • Developer PIN (so I can disable Smart Sleep and auto data wipe)
  • Firmware patch or update that keeps user data persistent after full shutdown or long idle periods
    • I have some updates available but I'm afraid to update :D 

  Expected result:
  After long standby, the following should stay intact:

  • Google account login and apps
  • Bluetooth and CarPlay pairings
  • App settings and CarLink profiles

  This issue makes the system frustrating to use bi-daily.

  
  Please share the developer password or a firmware fix that prevents automatic user data wipe.

  Thank you for your help!

  Urmas
  From Estonia

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