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Replacing U-boot using android adb
./adb shell
in adb shell:
mkdir /sdcard/nanda
mount -tvfat /dev/block/nanda /sdcard/nanda
exit
push new uboot:
./adb push <path_to_uboot>/u-boot.bin /sdcard/nanda/u-boot.bin
Reboot:
./adb shell reboot
2.Flashing boot.img using fastboot
Connect to Debug uart :
UEXT Pin2 -> GND
UEXT Pin3 -> TX
UEXT Pin4 -> RX
Serial 115200, 8, N, 1
When uboot appears stop booting process pressing key on keyboard. Write fastboot on u- boot terminal Go to dir with android SDK platform-tools and start fastboot
./fastboot boot <path_to_boot.img>/boot_sd.img
After flashing ends reboot device:
./fastboot reboot
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SD Card image: Make two partitions : 1.20MB ext2/3/4 2.Rest Extract image on partition 2: Debian image aviable here :
http://31.13.212.1/debian.tgz
extract it to root folder of mmc partition 2 :
tar zxfv debian.tgz -C /<path_to_mount_point_>/