HI:
you can follow it .
Step 1: Format your SD Card
Step 2:   Put the file(s) to 100MB of the SD Card whit DD command.
sudo dd if=boot0_sdcard.fex     of=/dev/sdb bs=1k seek=8
sudo dd if=u-boot.fex           of=/dev/sdb bs=1k seek=16400
sudo dd if=sunxi_mbr.fex    of=/dev/sdb bs=1k seek=20480
sudo dd if=boot-resource.fex    of=/dev/sdb bs=1k seek=36864
sudo dd if=env.fex          of=/dev/sdb bs=1k seek=69632
Step 3: Check console log:
HELLO! BOOT0 is starting!
boot0 version : 4.0.0
boot0 commit : 368945ad3c87c1814bfe3eea5aab3ffc0e9d2d5c
 
fel_flag = 0x00000000
rtc[0] value = 0x00000000
rtc[1] value = 0x00000000
rtc[2] value = 0x00000000
rtc[3] value = 0x00000000
rtc[4] value = 0x00000000
rtc[5] value = 0x00000000
rtc[6] value = 0x00000000
rtc[7] value = 0x00000000
DRAM DRIVE INFO: V1.3
the chip id is 0x00000081
the chip id is 0x00000081
the chip id is 0x00000081
the chip id is 0x00000081
the chip id is 0x00000081
READ DQS LCDL = 001f1f1f
DRAM Type = 3 (2:DDR2,3:DDR3,6:LPDDR2,7:LPDDR3)
DRAM CLK = 672 MHz
DRAM zq value: 003b3bfb
DRAM dram para1: 10f40400
DRAM dram para2: 00000000
DRAM workmode1: 000009f4
DRAM SIZE =1024 M
odt delay 
dram size =1024
card boot number = 0
card no is 0
sdcard 0 line count 4
[mmc]: mmc driver ver 2015-04-13 16:07:39
[mmc]: ***Try SD card 0***
[mmc]: SD/MMC Card: 4bit, capacity: 7600MB
[mmc]: vendor: Man 00275048 Snr 7c8a57ca
[mmc]: product: SD8GB
[mmc]: revision: 3.0
[mmc]: ***SD/MMC 0 init OK!!!***
sdcard 0 init ok
The size of uboot is 000e4000.
sum=ed7a0298
src_sum=ed7a0298
Succeed in loading uboot from sdmmc flash.
Ready to disable icache.
Jump to secend Boot.
SUNXI_NORMAL_MODE   
already secure mode[      0.377]
U-Boot 2011.09-rc1-00000-g1d6fe6d (Jul 22 2016 - 08:46:44) Allwinner Technology 
[      0.385]version: 1.1.0
[      0.388]uboot commit : 1d6fe6d644f1df412458dcce24b1fec4ef72842a
 
normal mode
[      0.399]pmbus:   ready
not set main pmu id
axp_probe error
[board_vendor] vid_used not used
[      0.417]PMU: pll1 1008 Mhz,PLL6=600 Mhz
AXI=336 Mhz,AHB=200 Mhz, APB1=100 Mhz 
sid read already 
fel key new mode
run key detect
no key found
no key input
dram_para_set start
dram_para_set end
normal mode
[      0.448]DRAM:  1 GiB
relocation Offset is: 35af0000
[box standby] read rtc = 0x0
[box_start_os] mag be start_type no use
user_gpio config
user_gpio ok
gic: normal or no secure os mode
workmode = 0
MMC:	 0
[      0.526][mmc]: mmc driver ver 2015-04-13 14:50:00
[      0.531][mmc]: get sdc_phy_wipe fail.
[      0.535][mmc]: get sdc0 sdc_erase fail.
[      0.539][mmc]: get sdc_f_max fail,use default 50000000Hz
[      0.544][mmc]: get sdc_ex_dly_used fail,use default dly
[      0.550][mmc]: SUNXI SD/MMC: 0
[      0.563][mmc]: *Try SD card 0*
[      0.596][mmc]: CID 0x27504853 0x44384742 0x307c8a57 0xca00f8bb
[      0.601][mmc]: mmc clk 50000000
[      0.605][mmc]: SD/MMC Card: 4bit, capacity: 7600MB
[      0.610][mmc]: boot0 capacity: 0KB,boot1 capacity: 0KB
[      0.615][mmc]: ***SD/MMC 0 init OK!!!***
[      0.620][mmc]: erase_grp_size:0x1WrBlk * 0x200 = 0x200 Byte
[      0.625][mmc]: secure_feature 0x0
[      0.629][mmc]: secure_removal_type  0x0
[      0.633]sunxi flash init ok
script config pll_de to 864 Mhz
Not Found clk pll_video1 in script 
script config pll_video to 297 Mhz
script config pll_periph0 to 600 Mhz
[boot]disp_init_tv
[DISP_TV] disp_init_tv enter g_tv_used
screen 0 do not support TV TYPE!
[BOOOT_DISP_TV] disp tv device_registered
unable to find regulator vcc-hdmi-18 from [pmu1_regu] or [pmu2_regu] 
enable power vcc-hdmi-18, ret=-1
DRV_DISP_Init end
[disk_read_fs] no the partition
error: open tv_vdid.fex, maybe it is not exist
[disk_read_fs] no the partition
error: open disp_rsl.fex, maybe it is not exist
[disk_read_fs] no the partition
error: open disp_rsl.fex, maybe it is not exist
boot_disp.auto_hpd=1
auto hpd check has 0 times!
attched ok, mgr0<-->device0, type=4, mode=4----
ready to set mode
[      1.532]finally, output_type=0x4, output_mode=0x4, screen_id=0x0, disp_para=0x404
In:    serial
Out:   serial
Err:   serial
--------fastboot partitions--------
-total partitions:6-
-name-        -start-       -size-      
boot-res    : 1000000       2000000     
env         : 3000000       1000000     
boot        : 4000000       1000000     
rootfs      : 5000000       20000000    
klog        : 25000000      1000000     
UDISK       : 26000000      0           
-----------------------------------
base bootcmd=run setargs_nand boot_normal
bootcmd set setargs_mmc
key 0
cant find rcvy value
cant find fstbt value
no misc partition is found
to be run cmd=run setargs_mmc boot_normal
[      1.601][mmc]: MMC Device 2 not found
[      1.605][mmc]: Can not find mmc dev
[      1.608][mmc]: read first backup failed in fun sdmmc_secure_storage_read line 1854
sunxi_secstorage_read fail
get secure storage map err
check user data form private
the private part isn't exist
WORK_MODE_BOOT
adver not need show
sunxi_bmp_logo_display
f_read btr over hd12896
read byte = 6220854
[      1.949]screen_id =0, screen_width =1280, screen_height =720
[      1.955]frame buffer address 46400036
[      1.958]Hit any key to stop autoboot:  3  2  1  0 
[      5.214][mmc]: MMC Device 2 not found
** Invalid boot device **
** Unable to read "bananapi/bpi-m3/linux/uEnv.txt" from mmc 0:1 **
** Unable to read "uEnv.txt" from mmc 0:1 **
read boot or recovery all
boota: bad boot image magic, maybe not a boot.img?
try to read all
[      5.947]sunxi flash read :offset 4000000, 16777216 bytes OK
boota: bad boot image magic, maybe not a boot.img?
sunxi#