more info on these issues :

1. Tried using 2.5A 5V power supply - same issues
2. Flashed image using DiskImager after formating the SD card as suggested 
by some, still same issues.
3. Tried booting with the SD card with latest Arngstrom image, still same.

Here are few screen dumps while normal booting from eMMC and while flashing 
:

Screendump during normal booting from eMMC :

U-Boot SPL 2013.04-dirty (Jul 10 2013 - 14:02:53)
musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, HB-ISO Rx, HB-ISO Tx, 
SoftConn)
musb-hdrc: MHDRC RTL version 2.0
musb-hdrc: setup fifo_mode 4
musb-hdrc: 28/31 max ep, 16384/16384 memory
USB Peripheral mode controller at 47401000 using PIO, IRQ 0
musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, HB-ISO Rx, HB-ISO Tx, 
SoftConn)
musb-hdrc: MHDRC RTL version 2.0
musb-hdrc: setup fifo_mode 4
musb-hdrc: 28/31 max ep, 16384/16384 memory
USB Host mode controller at 47401800 using PIO, IRQ 0
OMAP SD/MMC: 0
mmc_send_cmd : timeout: No status update
reading u-boot.img
reading u-boot.img

U-Boot 2013.04-dirty (Jul 10 2013 - 14:02:53)

I2C:   ready
DRAM:  512 MiB
WARNING: Caches not enabled
NAND:  No NAND device found!!!
0 MiB
MMC:   OMAP SD/MMC: 0, OMAP SD/MMC: 1
*** Warning - readenv() failed, using default environment

musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, HB-ISO Rx, HB-ISO Tx, 
SoftConn)
musb-hdrc: MHDRC RTL version 2.0
musb-hdrc: setup fifo_mode 4
musb-hdrc: 28/31 max ep, 16384/16384 memory
USB Peripheral mode controller at 47401000 using PIO, IRQ 0
musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, HB-ISO Rx, HB-ISO Tx, 
SoftConn)
musb-hdrc: MHDRC RTL version 2.0
musb-hdrc: setup fifo_mode 4
musb-hdrc: 28/31 max ep, 16384/16384 memory
USB Host mode controller at 47401800 using PIO, IRQ 0
Net:   <ethaddr> not set. Validating first E-fuse MAC
cpsw, usb_ether
Hit any key to stop autoboot:  0
gpio: pin 53 (gpio 53) value is 1
mmc_send_cmd : timeout: No status update
Card did not respond to voltage select!
mmc0(part 0) is current device
Card did not respond to voltage select!
No micro SD card found, setting mmcdev to 1
mmc_send_cmd : timeout: No status update
mmc1(part 0) is current device
gpio: pin 54 (gpio 54) value is 1
SD/MMC found on device 1
reading uEnv.txt
26 bytes read in 3 ms (7.8 KiB/s)
Loaded environment from uEnv.txt
Importing environment from mmc ...
gpio: pin 55 (gpio 55) value is 1
4385024 bytes read in 764 ms (5.5 MiB/s)
gpio: pin 56 (gpio 56) value is 1
24808 bytes read in 51 ms (474.6 KiB/s)
Booting from mmc ...
## Booting kernel from Legacy Image at 80007fc0 ...
   Image Name:   Angstrom/3.8.13/beaglebone
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    4384960 Bytes = 4.2 MiB
   Load Address: 80008000
   Entry Point:  80008000
   Verifying Checksum ... OK
## Flattened Device Tree blob at 80f80000
   Booting using the fdt blob at 0x80f80000
   XIP Kernel Image ... OK
OK
   Using Device Tree in place at 80f80000, end 80f890e7

Starting kernel ...

Uncompressing Linux... done, booting the kernel.
[    0.196290] omap2_mbox_probe: platform not supported
[    0.206854] tps65217-bl tps65217-bl: no platform data provided
[    0.283428] bone-capemgr bone_capemgr.8: slot #0: No cape found
[    0.320535] bone-capemgr bone_capemgr.8: slot #1: No cape found
[    0.357643] bone-capemgr bone_capemgr.8: slot #2: No cape found
[    0.394752] bone-capemgr bone_capemgr.8: slot #3: No cape found
[    0.414475] bone-capemgr bone_capemgr.8: slot #6: BB-BONELT-HDMIN 
conflict P8.45 (#5:BB-BONELT-HDMI)
[    0.424084] bone-capemgr bone_capemgr.8: slot #6: Failed verification
[    0.444520] omap_hsmmc mmc.4: of_parse_phandle_with_args of 'reset' 
failed
[    0.451814] bone-capemgr bone_capemgr.8: loader: failed to load slot-6 
BB-BONELT-HDMIN:00A0 (prio 2)
[    0.518300] pinctrl-single 44e10800.pinmux: pin 44e10854 already 
requested by 44e10800.pinmux; cannot claim for gpio-leds.7
[    0.530038] pinctrl-single 44e10800.pinmux: pin-21 (gpio-leds.7) status 
-22
[    0.537365] pinctrl-single 44e10800.pinmux: could not request pin 21 on 
device pinctrl-single
[   10.028611] g_multi: `' invalid for parameter `C5'
systemd-fsck[86]: Angstrom: clean, 49262/112672 files, 275502/449820 blocks
[   11.098934] libphy: PHY 4a101000.mdio:01 not found
[   11.104027] net eth0: phy 4a101000.mdio:01 not found on slave 1

.---O---.
|       |                  .-.           o o
|   |   |-----.-----.-----.| |   .----..-----.-----.
|       |     | __  |  ---'| '--.|  .-'|     |     |
|   |   |  |  |     |---  ||  --'|  |  |  '  | | | |
'---'---'--'--'--.  |-----''----''--'  '-----'-'-'-'
                -'  |
                '---'

The Angstrom Distribution beaglebone ttyO0

Angstrom v2012.12 - Kernel 3.8.13

beaglebone login:

***************************************************************************************************************

Screendump while flashing eMMc with an SD card having flah image :

U-Boot SPL 2013.04-dirty (Jun 19 2013 - 09:57:14)
musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, HB-ISO Rx, HB-ISO Tx, 
SoftConn)
musb-hdrc: MHDRC RTL version 2.0
musb-hdrc: setup fifo_mode 4
musb-hdrc: 28/31 max ep, 16384/16384 memory
USB Peripheral mode controller at 47401000 using PIO, IRQ 0
musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, HB-ISO Rx, HB-ISO Tx, 
SoftConn)
musb-hdrc: MHDRC RTL version 2.0
musb-hdrc: setup fifo_mode 4
musb-hdrc: 28/31 max ep, 16384/16384 memory
USB Host mode controller at 47401800 using PIO, IRQ 0
OMAP SD/MMC: 0
reading u-boot.img
reading u-boot.img


U-Boot 2013.04-dirty (Jun 19 2013 - 09:57:14)

I2C:   ready
DRAM:  512 MiB
WARNING: Caches not enabled
NAND:  No NAND device found!!!
0 MiB
MMC:   OMAP SD/MMC: 0, OMAP SD/MMC: 1
*** Warning - readenv() failed, using default environment

musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, HB-ISO Rx, HB-ISO Tx, 
SoftConn)
musb-hdrc: MHDRC RTL version 2.0
musb-hdrc: setup fifo_mode 4
musb-hdrc: 28/31 max ep, 16384/16384 memory
USB Peripheral mode controller at 47401000 using PIO, IRQ 0
musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, HB-ISO Rx, HB-ISO Tx, 
SoftConn)
musb-hdrc: MHDRC RTL version 2.0
musb-hdrc: setup fifo_mode 4
musb-hdrc: 28/31 max ep, 16384/16384 memory
USB Host mode controller at 47401800 using PIO, IRQ 0
Net:   <ethaddr> not set. Validating first E-fuse MAC
cpsw, usb_ether
Hit any key to stop autoboot:  0
gpio: pin 53 (gpio 53) value is 1
mmc0 is current device
micro SD card found
mmc0 is current device
gpio: pin 54 (gpio 54) value is 1
SD/MMC found on device 0
reading uEnv.txt
14 bytes read in 3 ms (3.9 KiB/s)
Loaded environment from uEnv.txt
Importing environment from mmc ...
gpio: pin 55 (gpio 55) value is 1
4270840 bytes read in 783 ms (5.2 MiB/s)
gpio: pin 56 (gpio 56) value is 1
24125 bytes read in 76 ms (309.6 KiB/s)
Booting from mmc ...
## Booting kernel from Legacy Image at 80007fc0 ...
   Image Name:   Angstrom/3.8.13/beaglebone
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    4270776 Bytes = 4.1 MiB
   Load Address: 80008000
   Entry Point:  80008000
   Verifying Checksum ... OK
## Flattened Device Tree blob at 80f80000
   Booting using the fdt blob at 0x80f80000
   XIP Kernel Image ... OK
OK
   Using Device Tree in place at 80f80000, end 80f88e3c

Starting kernel ...

Uncompressing Linux... done, booting the kernel.
[    0.194308] omap2_mbox_probe: platform not supported
[    0.204898] tps65217-bl tps65217-bl: no platform data provided
[    0.281465] bone-capemgr bone_capemgr.9: slot #0: No cape found
[    0.318569] bone-capemgr bone_capemgr.9: slot #1: No cape found
[    0.355678] bone-capemgr bone_capemgr.9: slot #2: No cape found
[    0.392786] bone-capemgr bone_capemgr.9: slot #3: No cape found
[    0.414512] bone-capemgr bone_capemgr.9: slot #6: BB-BONELT-HDMIN 
conflict P8.45 (#5:BB-BONELT-HDMI)
[    0.424116] bone-capemgr bone_capemgr.9: slot #6: Failed verification
[    0.430890] bone-capemgr bone_capemgr.9: loader: failed to load slot-6 
BB-BONELT-HDMIN:00A0 (prio 2)
[    0.451474] omap_hsmmc mmc.4: of_parse_phandle_with_args of 'reset' 
failed
[    0.516342] pinctrl-single 44e10800.pinmux: pin 44e10854 already 
requested by 44e10800.pinmux; cannot claim for gpio-leds.8
[    0.528054] pinctrl-single 44e10800.pinmux: pin-21 (gpio-leds.8) status 
-22
[    0.535367] pinctrl-single 44e10800.pinmux: could not request pin 21 on 
device pinctrl-single
systemd-fsck[86]: eMMC-Flasher: clean, 12813/218592 files, 167681/873534 
blocks

.---O---.
|       |                  .-.           o o
|   |   |-----.-----.-----.| |   .----..-----.-----.
|       |     | __  |  ---'| '--.|  .-'|     |     |
|   |   |  |  |     |---  ||  --'|  |  |  '  | | | |
'---'---'--'--'--.  |-----''----''--'  '-----'-'-'-'
                -'  |
                '---'

The Angstrom Distribution beaglebone ttyO0

Angstrom v2012.12 - Kernel 3.8.13

beaglebone login: [   13.640643] libphy: PHY 4a101000.mdio:01 not found
[   13.645707] net eth0: phy 4a101000.mdio:01 not found on slave 1

It hangs here with LEDS flashing for an hour..after which all LEDS are ON 
but nothing else happens..
No flashing of eMMC and on reboot same status exists.

**********************************************************************************************************

On Wednesday, February 5, 2014 3:57:37 PM UTC-8, anbu wrote:
>
> Hi,
>
> I just got my BBB Rev A6 from Newark Element14.
>
> Unfortunately it does not work on USB.. followed all instructions to the 
> dot... 
> Tried on three PCs with Win7-x64, WinXP-x32, Win-Vista on laptop... PC 
> does not detect BBB at all..no usb drive seen for BBB..
> However with a usb-ttl interface board, i get the serial terminal screen 
> and BBB works in that mode.
>
> The Arngstrom version is : 2012.12  kernel : 3.8.13
> Tried to flash eMM with latest build but it does not update flash..
> Tried booting from SD card with latest image but still no luck...
>
> Though I have been designing DSP & Embedded systems HW & SW for over two 
> and half decades, this is my first try with linux.
> Disappointed with such a bad experience... 
> Any suggestions to fix these board/boot issues?
>
> Thanks,
> anbu
>

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