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| Just tried it. Didn't solve the problem.
 For some reason, it can never read the partition table.
 
 ...and it freezes here.Copy codeU-Boot 2016.03-rc2-armbian (Feb 25 2016 - 22:15:28 +0000) Allwinner Technology
CPU:   Allwinner H3 (SUN8I)
I2C:   ready
DRAM:  1 GiB
MMC:   SUNXI SD/MMC: 0
*** Warning - bad CRC, using default environment
In:    serial
Out:   serial
Err:   serial
Net:   No ethernet found.
starting USB...
No controllers found
Hit any key to stop autoboot:  0
switch to partitions #0, OK
mmc0 is current device
Scanning mmc 0:1...
Found U-Boot script /boot/boot.scr
2051 bytes read in 485 ms (3.9 KiB/s)
## Executing script at 43100000
0 bytes read in 365 ms (0 Bytes/s)
12927 bytes read in 1243 ms (9.8 KiB/s)
 ** ext4fs_devread read error - block
** Can't read partition table on 0:0 **
** Invalid partition 1 **
** Can't read partition table on 0:0 **
** Invalid partition 1 **
Kernel image @ 0x46000000 [ 0x000000 - 0x49a760 ]
## Flattened Device Tree blob at 49000000
   Booting using the fdt blob at 0x49000000
   Using Device Tree in place at 49000000, end 4900627e
Starting kernel ...
Uncompressing Linux...
 Compared to the same image copied to a 32GB sdcard:
 
 Copy codeU-Boot 2016.03-rc2-armbian (Feb 25 2016 - 22:15:28 +0000) Allwinner Technology
CPU:   Allwinner H3 (SUN8I)
I2C:   ready
DRAM:  1 GiB
MMC:   SUNXI SD/MMC: 0
*** Warning - bad CRC, using default environment
In:    serial
Out:   serial
Err:   serial
Net:   No ethernet found.
starting USB...
No controllers found
Hit any key to stop autoboot:  0
switch to partitions #0, OK
mmc0 is current device
Scanning mmc 0:1...
Found U-Boot script /boot/boot.scr
2051 bytes read in 343 ms (4.9 KiB/s)
## Executing script at 43100000
0 bytes read in 262 ms (0 Bytes/s)
12927 bytes read in 862 ms (13.7 KiB/s)
4826976 bytes read in 5258 ms (896.5 KiB/s)
Kernel image @ 0x46000000 [ 0x000000 - 0x49a760 ]
## Flattened Device Tree blob at 49000000
   Booting using the fdt blob at 0x49000000
   Using Device Tree in place at 49000000, end 4900627e
Starting kernel ...
Uncompressing Linux... done, booting the kernel.
Debian GNU/Linux 8 orangepih3 ttyS0
orangepih3 login:
 
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