UDOObuntu runs OK but Android will not

Discussion in 'Troubleshooting' started by Ulrico, Aug 13, 2014.

  1. Ulrico

    Ulrico New Member

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    Dear helpful guys,

    I have an UDOO-Quad that works satisfactory with UDOObuntu but will not run with Android. After not used for a (relatively long) time Android starts and gives a good image on HDMI, but in 1,5 or 2 minutes it crashes down. After that it tries to re-boot, it brings for a short time the "android"-logo on the screen, but crashes down after a few seconds.

    I have rewritten the micro-SD-card, I have buyed an new (faster) micro-SD-card, but the result is the same.

    What do I wrong? Or what can I do to solve this problem?

    I'm glad for every suggestion,

    Ulrico.
     
  2. Dré-Stylè

    Dré-Stylè New Member

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    How did you created the image ? (eg bootable device ?)
    what were you doing when it crashed ?
    did you had 3rd party software installed?
    what devices eg hardware was used ?

    mabe we find the problem for you :D
     
  3. Ulrico

    Ulrico New Member

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    Hi, Dré-Stylè,

    I transferred the udoo_quad_android_v2.0.2.img-file with Win32DiskImager (version 0.9.5) to a 16GB uSD-Card (class 10).
    The first attempts I had begun to adapt the settings (i.e. WLAN, in an other attempt the language), but the crash didn't allow to complete the settings - then still waiting and looking at the clock.
    I had no chance to install any software - the one-and-a-half minute life-time was too short...
    Power-Supply and HDMI-cable are the "official" that I receive with the board, the TV is a Samsung, an USB-plug communicates with a Wireless Touch Keyboard K400r (logitech).

    During the weekend I tried to approach the trouble over the debug serial port. In doing this I get no Android-Start-Screen but the message "Encryption unsuccessful" and the offer to reset the tablet. By accepting this the board starts the endless-booting sequence - unless I stopped it with pressing a key at the countdown.

    Here is the log from the power-on to the "Encryption unsuccessful"-message:

    Code:
    U-Boot 2009.08-svn55 (Apr 08 2014 - 07:01:47)
    
    CPU: Freescale i.MX6 family TO1.2 at 792 MHz
    Thermal sensor with ratio = 179
    Temperature:   20 C, calibration data 0x56f4db69
    mx6q pll1: 792MHz
    mx6q pll2: 528MHz
    mx6q pll3: 480MHz
    mx6q pll8: 50MHz
    ipg clock     : 66000000Hz
    ipg per clock : 66000000Hz
    uart clock    : 80000000Hz
    cspi clock    : 60000000Hz
    ahb clock     : 132000000Hz
    axi clock   : 264000000Hz
    emi_slow clock: 132000000Hz
    ddr clock     : 528000000Hz
    usdhc1 clock  : 198000000Hz
    usdhc2 clock  : 198000000Hz
    usdhc3 clock  : 198000000Hz
    usdhc4 clock  : 198000000Hz
    nfc clock     : 24000000Hz
    Board: i.MX6Q-UDOO: unknown-board Board: 0x63012 [POR]
    Boot Device: NOR
    I2C:   ready
    DRAM:   1 GB
    MMC:   FSL_USDHC: 0,FSL_USDHC: 1,FSL_USDHC: 2,FSL_USDHC: 3
    *** Warning - bad CRC or MMC, using default environment
    
    In:    serial
    Out:   serial
    Err:   serial
    Net:   got MAC address from IIM: 00:c0:08:88:1c:47
    FEC0 [PRIME]
    Hit any key to stop autoboot:  0
    kernel   @ 10808000 (4333500)
    ramdisk  @ 11800000 (238369)
    kernel cmdline:
            use uboot command line:
            console=ttymxc1,115200 init=/init video=mxcfb0:dev=hdmi,1920x1080M@60,if=RGB24,bpp=32 video=mxcfb1:off video=mxcfb2:off fbmem=28M vmalloc=400M androidboot.console=ttymxc1 androidboot.hardware=freescale mem=1024M
    
    Starting kernel ...
    
    Initializing cgroup subsys cpuset
    Initializing cgroup subsys cpu
    Linux version 3.0.35-svn50 (udoo@ubuntu) (gcc version 4.6.x-google 20120106 (prerelease) (GCC) ) #2 SMP PREEMPT Tue Apr 8 05:21:18 PDT 2014
    CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c53c7d
    CPU: VIPT nonaliasing data cache, VIPT aliasing instruction cache
    Machine: i.Mx6 UDOO Board
    Ignoring unrecognised tag 0x41000901
    Memory policy: ECC disabled, Data cache writealloc
    CPU identified as i.MX6Q, silicon rev 1.2
    PERCPU: Embedded 7 pages/cpu @c14d2000 s5408 r8192 d15072 u32768
    Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 223232
    Kernel command line: console=ttymxc1,115200 init=/init video=mxcfb0:dev=hdmi,1920x1080M@60,if=RGB24,bpp=32 video=mxcfb1:off video=mxcfb2:off fbmem=28M vmalloc=400M androidboot.console=ttymxc1 androidboot.hardware=freescale mem=1024M
    PID hash table entries: 2048 (order: 1, 8192 bytes)
    Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
    Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
    Memory: 640MB 240MB = 880MB total
    Memory: 879040k/879040k available, 169536k reserved, 491520K highmem
    Virtual kernel memory layout:
        vector  : 0xffff0000 - 0xffff1000   (   4 kB)
        fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
        DMA     : 0xfbe00000 - 0xffe00000   (  64 MB)
        vmalloc : 0xd9800000 - 0xf2000000   ( 392 MB)
        lowmem  : 0xc0000000 - 0xd9000000   ( 400 MB)
        pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
        modules : 0xbf000000 - 0xbfe00000   (  14 MB)
          .init : 0xc0008000 - 0xc003c000   ( 208 kB)
          .text : 0xc003c000 - 0xc0b4057c   (11282 kB)
          .data : 0xc0b42000 - 0xc0b988c0   ( 347 kB)
           .bss : 0xc0b988e4 - 0xc0cc8c20   (1217 kB)
    Preemptible hierarchical RCU implementation.
    NR_IRQS:624
    MXC GPIO hardware
    sched_clock: 32 bits at 3000kHz, resolution 333ns, wraps every 1431655ms
    arm_max_freq=1GHz
    MXC_Early serial console at MMIO 0x21e8000 (options '115200')
    bootconsole [ttymxc1] enabled
    Calibrating delay loop... 1581.05 BogoMIPS (lpj=7905280)
    pid_max: default: 32768 minimum: 301
    Mount-cache hash table entries: 512
    CPU: Testing write buffer coherency: ok
    hw perfevents: enabled with ARMv7 Cortex-A9 PMU driver, 7 counters available
    CPU1: Booted secondary processor
    CPU2: Booted secondary processor
    CPU3: Booted secondary processor
    Brought up 4 CPUs
    SMP: Total of 4 processors activated (6324.22 BogoMIPS).
    print_constraints: dummy:
    NET: Registered protocol family 16
    print_constraints: vddpu: 725 <--> 1300 mV at 700 mV fast normal
    print_constraints: vddcore: 725 <--> 1300 mV at 1150 mV fast normal
    print_constraints: vddsoc: 725 <--> 1300 mV at 1200 mV fast normal
    print_constraints: vdd2p5: 2000 <--> 2775 mV at 2400 mV fast normal
    print_constraints: vdd1p1: 800 <--> 1400 mV at 1100 mV fast normal
    print_constraints: vdd3p0: 2625 <--> 3400 mV at 3000 mV fast normal
    UDOO board init
    ####Called set_gpios_direction
    failed to get MX6_IO_MICRO: -16
    Resetting ethernet physical layer.
    hw-breakpoint: found 6 breakpoint and 1 watchpoint registers.
    hw-breakpoint: 1 breakpoint(s) reserved for watchpoint single-step.
    hw-breakpoint: maximum watchpoint size is 4 bytes.
    L310 cache controller enabled
    l2x0: 16 ways, CACHE_ID 0x410000c7, AUX_CTRL 0x32070000, Cache size: 1048576 B
    bio: create slab <bio-0> at 0
    print_constraints: vmmc: 3300 mV
    vgaarb: loaded
    SCSI subsystem initialized
    usbcore: registered new interface driver usbfs
    usbcore: registered new interface driver hub
    usbcore: registered new device driver usb
    Freescale USB OTG Driver loaded, $Revision: 1.55 $
    imx-ipuv3 imx-ipuv3.0: IPU DMFC NORMAL mode: 1(0~1), 5B(4,5), 5F(6,7)
    imx-ipuv3 imx-ipuv3.1: IPU DMFC NORMAL mode: 1(0~1), 5B(4,5), 5F(6,7)
    mxc_mipi_csi2 mxc_mipi_csi2: i.MX MIPI CSI2 driver probed
    mxc_mipi_csi2 mxc_mipi_csi2: i.MX MIPI CSI2 dphy version is 0x3130302a
    MIPI CSI2 driver module loaded
    Advanced Linux Sound Architecture Driver Version 1.0.24.
    cfg80211: Calling CRDA to update world regulatory domain
    i2c-core: driver [max17135] using legacy suspend method
    i2c-core: driver [max17135] using legacy resume method
    Switching to clocksource mxc_timer1
    NET: Registered protocol family 2
    IP route cache hash table entries: 16384 (order: 4, 65536 bytes)
    TCP established hash table entries: 65536 (order: 7, 524288 bytes)
    TCP bind hash table entries: 65536 (order: 7, 786432 bytes)
    TCP: Hash tables configured (established 65536 bind 65536)
    TCP reno registered
    UDP hash table entries: 256 (order: 1, 8192 bytes)
    UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
    NET: Registered protocol family 1
    RPC: Registered named UNIX socket transport module.
    RPC: Registered udp transport module.
    RPC: Registered tcp transport module.
    RPC: Registered tcp NFSv4.1 backchannel transport module.
    Unpacking initramfs...
    Freeing initrd memory: 232K
    PMU: registered new PMU device of type 0
    Static Power Management for Freescale i.MX6
    wait mode is enabled for i.MX6
    cpaddr = d9880000 suspend_iram_base=d98f8000
    PM driver module loaded
    IMX usb wakeup probe
    add wake up source irq 75
    IMX usb wakeup probe
    cpu regulator mode:ldo_enable
    i.MXC CPU frequency driver
    highmem bounce pool size: 64 pages
    ashmem: initialized
    JFFS2 version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
    fuse init (API version 7.16)
    msgmni has been set to 757
    io scheduler noop registered
    io scheduler deadline registered
    io scheduler cfq registered (default)
    MIPI DSI driver module loaded
    mxc_sdc_fb mxc_sdc_fb.0: register mxc display driver hdmi
    mxc_hdmi mxc_hdmi: Detected HDMI controller 0x13:0xa:0xa0:0xc1
    fbcvt: 1920x1080@60: CVT Name - 2.073M9
    imx-ipuv3 imx-ipuv3.0: IPU DMFC DP HIGH RESOLUTION: 1(0,1), 5B(2~5), 5F(6,7)
    mxc_sdc_fb mxc_sdc_fb.1: Can't get fb option for mxcfb1!
    mxc_sdc_fb mxc_sdc_fb.2: Can't get fb option for mxcfb2!
    imx-sdma imx-sdma: loaded firmware 1.1
    imx-sdma imx-sdma: initialized
    fbcvt: 1920x1080@60: CVT Name - 2.073M9
    Serial: IMX driver
    imx-uart.0: ttymxc0 at MMIO 0x2020000 (irq = 58) is a IMX
    imx-uart.1: ttymxc1 at MMIO 0x21e8000 (irq = 59) is a IMX
    console [ttymxc1] enabled, bootconsole disabled
    console [ttymxc1] enabled, bootconsole disabled
    imx-uart.3: ttymxc3 at MMIO 0x21f0000 (irq = 61) is a IMX
    loop: module loaded
    request BOSSA_CLK IRQ
    registering IRQ 419 for BOSSAC Arduino erase/reset operation
    vcan: Virtual CAN interface driver
    CAN device driver interface
    flexcan netdevice driver
    FEC Ethernet Driver
    fec_enet_mii_bus: probed
    PPP generic driver version 2.4.2
    PPP Deflate Compression module registered
    PPP BSD Compression module registered
    PPP MPPE Compression module registered
    NET: Registered protocol family 24
    PPTP driver version 0.8.5
    usbcore: registered new interface driver rt2800usb
    ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
    fsl-ehci fsl-ehci.0: Freescale On-Chip EHCI Host Controller
    fsl-ehci fsl-ehci.0: new USB bus registered, assigned bus number 1
    fsl-ehci fsl-ehci.0: irq 75, io base 0x02184000
    fsl-ehci fsl-ehci.0: USB 2.0 started, EHCI 1.00
    hub 1-0:1.0: USB hub found
    hub 1-0:1.0: 1 port detected
    add wake up source irq 72
    fsl-ehci fsl-ehci.1: Freescale On-Chip EHCI Host Controller
    fsl-ehci fsl-ehci.1: new USB bus registered, assigned bus number 2
    fsl-ehci fsl-ehci.1: irq 72, io base 0x02184200
    fsl-ehci fsl-ehci.1: USB 2.0 started, EHCI 1.00
    hub 2-0:1.0: USB hub found
    hub 2-0:1.0: 1 port detected
    usbcore: registered new interface driver cdc_acm
    cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
    Initializing USB Mass Storage driver...
    usbcore: registered new interface driver usb-storage
    USB Mass Storage support registered.
    usbcore: registered new interface driver usbserial
    usbserial: USB Serial Driver core
    USB Serial support registered for GSM modem (1-port)
    usbcore: registered new interface driver option
    option: v0.7.2:USB Driver for GSM modems
    USB Serial support registered for Qualcomm USB modem
    usbcore: registered new interface driver qcserial
    ARC USBOTG Device Controller driver (1 August 2005)
    android_usb gadget: Mass Storage Function, version: 2009/09/11
    android_usb gadget: Number of LUNs=1
     lun0: LUN: removable file: (no medium)
    Gadget Android: controller 'fsl-usb2-udc' not recognized
    android_usb gadget: android_usb ready
    Suspend udc for OTG auto detect
    fsl-usb2-udc: bind to driver android_usb
    mousedev: PS/2 mouse device common for all mice
    usbcore: registered new interface driver usbtouchscreen
    Sitronix touch driver 2.9.1
    Release date: 20120507
    send status reg command error (-5)
    sitronix: probe of 2-0055 failed with error -5
    i2c-core: driver [isl29023] using legacy suspend method
    i2c-core: driver [isl29023] using legacy resume method
    using rtc device, snvs_rtc, for alarms
    snvs_rtc snvs_rtc.0: rtc core: registered snvs_rtc as rtc0
    i2c /dev entries driver
    Linux video capture interface: v2.00
    usb 2-1: new high speed USB device number 2 using fsl-ehci
    ov5640_read_reg:write reg error:reg=300a
    camera ov5640_mipi is not found
    mxc_v4l2_output mxc_v4l2_output.0: V4L2 device registered as video16
    mxc_v4l2_output mxc_v4l2_output.0: V4L2 device registered as video17
    i2c-core: driver [mag3110] using legacy suspend method
    i2c-core: driver [mag3110] using legacy resume method
    imx2-wdt imx2-wdt.0: IMX2+ Watchdog Timer enabled. timeout=60s (nowayout=1)
    device-mapper: uevent: version 1.0.3
    device-mapper: ioctl: 4.20.0-ioctl (2011-02-02) initialised: dm-devel@redhat.com
    hub 2-1:1.0: USB hub found
    sdhci: Secure Digital Host Controller Interface driver
    sdhci: Copyright(c) Pierre Ossman
    hub 2-1:1.0: 4 ports detected
    mmc0: SDHCI controller on platform [sdhci-esdhc-imx.2] using DMA
    mxc_vdoa mxc_vdoa: i.MX Video Data Order Adapter(VDOA) driver probed
    VPU initialized
    mxc_asrc registered
    Galcore version 4.6.9.9754
    revserved_memory_account:viv_gpu registerd
    Thermal calibration data is 0x56f4db69
    Thermal sensor with ratio = 179
    Anatop Thermal registered as thermal_zone0
    anatop_thermal_probe: default cooling device is cpufreq!
    usbcore: registered new interface driver usbhid
    usbhid: USB HID core driver
    logger: created 256K log 'log_main'
    logger: created 256K log 'log_events'
    logger: created 256K log 'log_radio'
    logger: created 256K log 'log_system'
    usbcore: registered new interface driver snd-usb-audio
    mxc_hdmi_soc mxc_hdmi_soc.0: MXC HDMI Audio
    mmc0: host does not support reading read-only switch. assuming write-enable.
    mmc0: new high speed SDHC card at address 0007
    mmcblk0: mmc0:0007 SD16G 14.6 GiB
     mmcblk0: p1 p2 p3 < p5 p6 p7 p8 > p4
    audio_codec_ac97_cold_reset
    usb 2-1.1: new full speed USB device number 3 using fsl-ehci
    Found Audio codec AC97 vt1613, [ID = 5649 - 4123]
    asoc: vt1613 <-> imx-ssi.0 mapping ok
    asoc: mxc-hdmi-soc <-> imx-hdmi-soc-dai.0 mapping ok
    ALSA device list:
      #0: vt1613-audio
      #1: imx-hdmi-soc
    Netfilter messages via NETLINK v0.30.
    nf_conntrack version 0.5.0 (13738 buckets, 54952 max)
    ctnetlink v0.93: registering with nfnetlink.
    NF_TPROXY: Transparent proxy support initialized, version 4.1.0
    NF_TPROXY: Copyright (c) 2006-2007 BalaBit IT Ltd.
    xt_time: kernel timezone is -0000
    IPv4 over IPv4 tunneling driver
    GRE over IPv4 demultiplexor driver
    ip_tables: (C) 2000-2006 Netfilter Core Team
    arp_tables: (C) 2002 David S. Miller
    TCP cubic registered
    NET: Registered protocol family 10
    ip6_tables: (C) 2000-2006 Netfilter Core Team
    IPv6 over IPv4 tunneling driver
    NET: Registered protocol family 17
    NET: Registered protocol family 15
    can: controller area network core (rev 20090105 abi 8)
    NET: Registered protocol family 29
    can: raw protocol (rev 20090105)
    can: broadcast manager protocol (rev 20090105 t)
    L2TP core driver, V2.0
    PPPoL2TP kernel driver, V2.0
    L2TP IP encapsulation support (L2TPv3)
    L2TP netlink interface
    L2TP ethernet pseudowire support (L2TPv3)
    lib80211: common routines for IEEE802.11 drivers
    VFP support v0.3:
    input: Logitech USB Receiver as /devices/platform/fsl-ehci.1/usb2/2-1/2-1.1/2-1.1:1.0/input/input0
    implementor 41 architecture 3 part 30 variant 9 rev 4
    generic-usb 0003:046D:C52B.0001: input,hidraw0: USB HID v1.11 Keyboard [Logitech USB Receiver] on usb-fsl-ehci.1-1.1/input0
    Bus freq driver module loaded
    Bus freq driver Enabled
    mxc_dvfs_core_probe
    DVFS driver module loaded
    snvs_rtc snvs_rtc.0: setting system clock to 1970-01-01 00:00:01 UTC (1)
    input: Logitech USB Receiver as /devices/platform/fsl-ehci.1/usb2/2-1/2-1.1/2-1.1:1.1/input/input1
    Freeing init memory: 208K
    generic-usb 0003:046D:C52B.0002: input,hidraw1: USB HID v1.11 Mouse [Logitech USB Receiver] on usb-fsl-ehci.1-1.1/input1
    init: cannot find '/system/bin/dbus-daemon', disabling 'dbus'
    warning: `daemonsu' uses 32-bit capabilities (legacy support in use)
    EXT4-fs (mmcblk0p5): re-mounted. Opts: (null)
    EXT4-fs (mmcblk0p5): re-mounted. Opts: (null)
    root@udoo:/ # android_usb: already disabled
    mtp_bind_config
    adb_bind_config
    adb_open
    EXT4-fs (mmcblk0p5): re-mounted. Opts: (null)
    EXT4-fs (mmcblk0p5): re-mounted. Opts: (null)
    ERROR: v4l2 capture: slave not found!
    ERROR: v4l2 capture: slave not found!
    request_suspend_state: wakeup (3->0) at 27160255337 (1970-01-02 00:00:06.134425667 UTC)
    eth0: Freescale FEC PHY driver [Generic PHY] (mii_bus:phy_addr=1:06, irq=-1)
    Warning: Product ID of physical layer not recognized [id = 0x1622 unknown]
    ADDRCONF(NETDEV_UP): eth0: link is not ready
    acc_open
    acc_release
    init: sys_prop: permission denied uid:1003  name:service.bootanim.exit
    
    
    The endless-loop is quite identical - the difference appears after the line that begins with "VFP support v0.3:" (line 31 from bottom) where the endless-loop-log displays:
    
    VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
    Bus freq driver module loaded
    Bus freq driver Enabled
    mxc_dvfs_core_probe
    DVFS driver module loaded
    snvs_rtc snvs_rtc.0: setting system clock to 1970-01-01 00:22:41 UTC (1361)
    Freeing init memory: 208K
    init: cannot find '/system/bin/dbus-daemon', disabling 'dbus'
    warning: `daemonsu' uses 32-bit capabilities (legacy support in use)
    EXT4-fs (mmcblk0p5): re-mounted. Opts: (null)
    EXT4-fs (mmcblk0p5): re-mounted. Opts: (null)
    android_usb: already disabled
    mtp_bind_config
    adb_bind_config
    adb_open
    root@udoo:/ # EXT4-fs (mmcblk0p5): re-mounted. Opts: (null)
    EXT4-fs (mmcblk0p5): re-mounted. Opts: (null)
    ERROR: v4l2 capture: slave not found!
    ERROR: v4l2 capture: slave not found!
    Here comes a stop for a few seconds and the boot-process starts over with U-Boot 2009.08....

    Any ideas?

    Thanks a lot, Ulrico
     
  4. Dré-Stylè

    Dré-Stylè New Member

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    from the looks of it it seems like the boot wont succeed
    init: cannot find '/system/bin/dbus-daemon', disabling 'dbus'

    for what i know is that dbus is used to let the `rooted` system work
    somehow it wont load

    my guess is that or the .img file is incorrect
    or that the Win32DiskImager wont do his work ,

    how did you downloaded the image file
    and do you let disk imager run as admin ?
     
  5. Ulrico

    Ulrico New Member

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    I have done all I could do: I have new-formatted the uSD-card (with SDFormatter: full overwrite erased and format size adjustment on), I have downloaded the file anew on a Lubuntu-operated PC, I transferred the img-file exactly as specified in the tutorial (for Linux) but the outcome is always the same: the first time I start the new burned android I get a pretty good picture on my TV-screen, the wireless keyboard - and the mouse-pad - fulfills its duty as expected ... until about 2 minutes. From then I look on a dark screen on the TV-screen and see on the serial-connected PC the endless loop of booting sequences.

    I have downloaded the zip-file from the EU-Mirror and from the SourceForge: no difference. Trying to download the torrent I get only 99,9 % of the file, regardless of the time I wait for the transfer. Could it be that the source-files are not OK?

    I have spend hours on looking on the log-files of the booting sequences, but I have no chance to discover what is going wrong because I have no healthy log to compare with.

    I'm near to yield to despair: why UDOObuntu runs uncomplainingly but android didn't? I have even tested older android-versions: the result is quite the same. Does android presuppose different requirements than UDOObuntu? I have no idea.

    The few minutes I get android have captivated me - I want it back!
     
  6. Ulrico

    Ulrico New Member

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    Dear reader,

    I have send a request to the support: the trouble was caused by a bug who affects the real-time clock's quartz. The problem can be easly solved by cutting one of the component's pin. They sent me a picture that shows the pin that must be cutted. They have also shoot a video to show how to proceed.

    I have cut the leg of the IC by myself - the problem has been solved - I'm a happy owner of a full operating UDOO-board.

    Have fun with your UDOO!
     
  7. delba

    delba Administrator Staff Member

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    :D
     
  8. fast2me

    fast2me New Member

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    Hello,

    Im working on a school project and i have the same problem as you have Ulrico.

    Can i get the solution please?

    Greetings,

    Matthew
     
  9. delba

    delba Administrator Staff Member

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  10. sirrab

    sirrab UDOOer

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    Could this be done with words as well? Like cut pin 1 of Uxx. Or with references to the schematics?
     
  11. delba

    delba Administrator Staff Member

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    What's wrong with the video?
     
  12. shwet

    shwet New Member

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    0

    Try using this code to change refresh rate and resolution environment variables in the U-boot prompt

    setenv setvideomode 'setenv videomode video=mxcfb0:dev=hdmi,<xres>x<yres>[M][@<refresh>],bpp=32'

    then

    saveenv
     
  13. Andrea Rovai

    Andrea Rovai Well-Known Member

    Joined:
    Oct 27, 2014
    Messages:
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    Hi there Ulrico,
    try to verify that the image file you downloaded is ok with sha1 check sum, than let us know!
     

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