GitHub - makefu/wr703_mod: Howto Upgrade WR703n with more ram and more flash

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Howto Upgrade WR703n with more ram and more flash

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Name		Name	Last commit message	Last commit date
Latest commit History 32 Commits
big_images		big_images
ext_documentation		ext_documentation
images		images
pics		pics
uboot @ 8466f76		uboot @ 8466f76
.gitignore		.gitignore
.gitmodules		.gitmodules
README		README
build.py		build.py
ch341		ch341
flashing		flashing
howto_get_firmware		howto_get_firmware
links.txt		links.txt
restore_art		restore_art

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# upgrade flash memory from wr703

- save the art partition:
  # on wr703
  cat /dev/mtd1 > /tmp/mtd1
  cat /dev/mtd2 > /tmp/mtd2
  cat /dev/mtd4 > /tmp/mtd4

  # on laptop:
  mkdir images/my_wrt
  scp <wr703-ip>:/tmp/mtd1  images/my_wrt/mtd1
  scp <wr703-ip>:/tmp/mtd2  images/my_wrt/mtd2
  scp <wr703-ip>:/tmp/mtd4  images/my_wrt/mtd4
  model=wr703n free_space=12m ./build_image my_wrt


# Partitioning description
from: https://forum.openwrt.org/viewtopic.php?id=41449

Art partition for 16MB Flash :
  16MB total size in hex = 1000000
  64kb art partition size in hex = 10000
  Art partition hex address = 1000000 - 10000 = FF0000

64KiB uboot + 64KiB data (PIN&MAC) + kernel&fs + empty space as needed + 64KiB
ART at the end of flash, in total the size of your flash. The maximum size of
kernel&fs is the size or your flash, minus 128KiB uboot+data, minus 64KiB ART.
Data & ART blocks are from backups of that same router.


# uboot_mod
https://github.com/pepe2k/u-boot_mod


# online collaboration + info dump
https://piratenpad.de/p/wr703n