Communication gets stuck about ebaz4205 HOT 4 OPEN

Check both sides of PCB, I had some resistor and caps torn off. I found value from schematic and replaced them. SMD size is 0402.

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Thanks I will try that

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Ok, time for a little update: I soldered a cap that fell off the board (it fell inside the box and I didn't notice), plus now I power it with 12V (before were 5V). Now the output is this:

1.0.0.47 (Dec 07 2017 - 00:36:15 +0800)

Model: Zynq Zed Development Board
DRAM:  ECC disabled 256 MiB
NAND:  128 MiB
MMC:   zynq_sdhci: 0
Invalid bus 0 (err=-1)
*** Warning - spi_flash_probe() failed, using default environment

In:    serial
Out:   serial
Err:   serial
Model: Zynq Zed Development Board
Net:   Gem.e000b000
Hit 'd' to stop autoboot(eric):  0
Copying Linux from NAND flash to RAM...

Device 0: nand0, sector size 128 KiB
  Page size       2048 b
  OOB size          64 b
  Erase size    131072 b
  subpagesize      512 b
  options     0x       0
  bbt options 0x   20000

NAND read: device 0 offset 0x2220000, size 0x300000
 3145728 bytes read: OK
fpga_loadbitstream: Design name id not recognized in bitstream

NAND read: device 0 offset 0x300000, size 0x500000
 5242880 bytes read: OK

NAND read: device 0 offset 0x800000, size 0x20000
 131072 bytes read: OK
## Booting kernel from Legacy Image at 02080000 ...
   Image Name:   Linux-4.6.0-xilinx
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    3820688 Bytes = 3.6 MiB
   Load Address: 00008000
   Entry Point:  00008000
   Verifying Checksum ... OK
## Flattened Device Tree blob at 02000000
   Booting using the fdt blob at 0x2000000
   Loading Kernel Image ... OK
   Loading Device Tree to 0f2fe000, end 0f303b90 ... OK

Starting kernel ...

from ebaz4205.

Alright, time for another update and probably the last one, I kept trying and I found that it gives different responses at random before getting stuck, here are some examples that caught my eye:

1.0.0.47 (Dec 07 2017 - 00:36:15 +0800)

Model: Zynq Zed Development Board
DRAM: ECC disabled 256 MiB
NAND: 128 MiB
MMC: zynq_sdhci: 0
Invalid bus 0 (err=-1)
*** Warning - spi_flash_probe() failed, using default environment

In: serial
Out: serial
Err: serial
Model: Zynq Zed Development Board
Net: Gem.e000b000
Hit 'd' to stop autoboot(eric): 3 ��� 2 ��� 1 ��� 0
Copying Linux from NAND flash to RAM...

Device 0: nand0, sector size 128 KiB
Page size 2048 b
OOB size 64 b
Erase size 131072 b
subpagesize 512 b
options 0x 0
bbt options 0x 20000

NAND read: device 0 offset 0x2220000, size 0x300000
3145728 bytes read: OK
fpga_loadbitstream: Design name id not recognized in bitstream

NAND read: device 0 offset 0x300000, size 0x500000
5242880 bytes read: OK

NAND read: device 0 offset 0x800000, size 0x20000
data abort
pc : [<0ff539bc>] lr : [<0ff53668>]
reloc pc : [<0402a9bc>] lr : [<0402a668>]
sp : 0f3054a8 ip : 00000000 fp : 00000000
r10: 00800000 r9 : 0f308ef8 r8 : 00000000
r7 : 00000000 r6 : 00000000 r5 : 00000000 r4 : 0ffbaaa8
r3 : b5e7f35b r2 : 00020000 r1 : ffffffff r0 : 0ffbaaa8
Flags: nZCv IRQs off FIQs off Mode SVC_32
Resetting CPU ...

resetting ...

1.0.0.47 (Dec 07 2017 - 00:36:15 +0800)

Model: Zynq Zed Development Board
DRAM: ECC disabled 256 MiB
NAND: 128 MiB
MMC: zynq_sdhci: 0
Invalid bus 0 (err=-1)
*** Warning - spi_flash_probe() failed, using default environment

In: serial
Out: serial
Err: serial
Model: Zynq Zed Development Board
Net: Gem.e000b000
Hit 'd' to stop autoboot(eric): 3 ��� 2 ��� 1 ��� 0
Copying Linux from NAND flash to RAM...

Device 0: nand0, sector size 128 KiB
Page size 2048 b
OOB size 64 b
Erase size 131072 b
subpagesize 512 b
options 0x 0
bbt options 0x 20000

NAND read: device 0 offset 0x2220000, size 0x300000
3145728 bytes read: OK
fpga_loadbitstream: Design name id not recognized in bitstream

NAND read: device 0 offset 0x500000, size 0x7b00000
size adjusted to 0x7a60000 (5 bad blocks)
128319488 bytes read: OK

NAND read: device 0 offset 0x800000, size 0x20000
131072 bytes read: OK
bootm - boot application image from memory

Usage:
bootm [addr [arg ...]]
- boot application image stored in memory
passing arguments 'arg ...'; when booting a Linux kernel,
'arg' can be the address of an initrd image
When booting a Linux kernel which requires a flat device-tree
a third argument is required which is the address of the
device-tree blob. To boot that kernel without an initrd image,
use a '-' for the second argument. If you do not pass a third
a bd_info struct will be passed instead

For the new multi component uImage format (FIT) addresses
must be extened to include component or configuration unit name:
addr:<subimg_uname> - direct component image specification
addr#<conf_uname> - configuration specification
Use iminfo command to get the list of existing component
images and configurations.

Sub-commands to do part of the bootm sequence. The sub-commands must be
issued in the order below (it's ok to not issue all sub-commands):
start [addr [arg ...]]
loados - load OS image
ramdisk - relocate initrd, set env initrd_start/initrd_end
fdt - relocate flat device tree
cmdline - OS specific command line processing/setup
bdt - OS specific bd_t processing
prep - OS specific prep before relocation or go
go - start OS
zynq-uboot>

At this point I am almost sure there's something wrong with the nand memory so I will leave this here, at least it might help someone in the future. Thanks firepower!

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