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MX2 box HD18 v2.22 with A13 v1.0 - Anyone have a fix for: error, the rtc serial communication abnormal, reset the rtc!

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    MX2 box HD18 v2.22 with A13 v1.0 - Anyone have a fix for: error, the rtc serial communication abnormal, reset the rtc!

    Just wondering if anyone has fixed an MX2 HD 18 v2.22 with A13 v1.0 that gives the following

    Code:
    [   14.239765@0] SD/MMC initialization started......
    [   14.878937@0] mmc data3 pull high
    [   14.879157@0] sd_mmc_info->card_type=0
    [   14.880347@0] begin SDIO check ......
    [   14.906562@0] sdio_timeout_int_times = 0; timeout = 498
    [   14.929158@0] sdio_timeout_int_times = 0; timeout = 497
    [   14.929185@0] SEND OP timeout @1
    [   14.931949@0] mmc data3 pull high
    [   14.935437@0] begin SD&SDHC check ......
    [   14.981497@0] sdio_timeout_int_times = 0; timeout = 498
    [   14.981527@0] SEND IF timeout @2
    [   15.007046@0] sdio_timeout_int_times = 0; timeout = 498
    [   15.007074@0] begin MMC check ......
    [   15.051508@0] sdio_timeout_int_times = 0; timeout = 498
    [   15.051539@0] No any SD/MMC card detected!
    [   15.055172@0] #SD_MMC_ERROR_DRIVER_FAILURE error occured in sd_voltage_validation()
    [   15.062842@0] [card_force_init] unit_state 3
    [   15.062853@1]  
    [   15.062856@1] SD/MMC initialization started......
    [   15.073562@0] [dsp]DSP start addr 0xc4000000
    [   15.077685@0] [dsp]register dsp to char divece(232)
    [   15.087253@0] DSP pcmenc stream buffer to [0x9e001000-0x9e201000]
    [   15.088599@0] amlogic audio dsp pcmenc device init!
    [   15.094360@0] amlogic audio spdif interface device init!
    [   15.202808@0] error, the rtc serial communication abnormal, reset the rtc!
    [   15.307882@0] error, the rtc serial communication abnormal, reset the rtc!
    [   15.412952@0] error, the rtc serial communication abnormal, reset the rtc!
    [   15.518038@0] error, the rtc serial communication abnormal, reset the rtc!
    [   15.623112@0] error, the rtc serial communication abnormal, reset the rtc!
    [   15.728188@0] error, the rtc serial communication abnormal, reset the rtc!
    [   15.833255@0] error, the rtc serial communication abnormal, reset the rtc!
    [   15.938358@0] error, the rtc serial communication abnormal, reset the rtc!
    [   16.043443@0] error, the rtc serial communication abnormal, reset the rtc!
    [   16.148523@0] error, the rtc serial communication abnormal, reset the rtc!

    #2
    This is a hardware problem, which is not a big problem actually.
    It happens because of a broken crystal quartz resonator which worck for RTC module.
    I have tried unsoldering one from a PCi modem, but then realised that it has other frequency (for data modelling).
    Click image for larger version

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    Then I've found an old pc motherboard in a storage, and there was the one I really need. Now it does not give this error, so I can keep going to next stage unbricking it.

    Usually they put this crystals in any chinese clock, or any electronics that have time modules in
    You may only view thumbnails in this gallery. This gallery has 1 photos.

    Comment


      #3
      I have fixed it! Its a problem in the quartz crystal resonator, just unsoldered it from an old motherboard's RTC.

      Comment


        #4
        What is the value of the crystal?

        Comment


          #5
          Originally posted by salvuwerwer View Post
          What is the value of the crystal?
          A RTC crystal is typically 32.768 KHz.

          And whomever designed that board needs to give up their EE license. Jeez.

          Comment

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