TP-Link EAP245 v3 "Bad file." when attempting to flash

svanheule · February 21, 2021, 1:03pm

I wrote a Python script that should allow you to build CA-compatible factory images, using the OpenWrt factory image and a TP-Link firmware image for the CA-version.

gist.github.com

https://gist.github.com/svanheule/9f82e156a3601d4a726639eb7400ec97

patch-safeloader.py

#!/usr/bin/python3

# This file allows replacing or adding a TP-Link factory image partition to an OpenWrt
# safeloader factory image.
# The procedure to calculate the hash and the required salt are described at:
# https://github.com/openwrt/openwrt/blob/master/tools/firmware-utils/src/tplink-safeloader.c

import argparse
import binascii
import collections

This file has been truncated. show original

Usage is as follows to make an OpenWrt factory image compatible with a CA-region:

Download the OpenWrt factory, e.g. from snapshot builds
Download and extract the original firmware upgrade image for the CA region
Run the patching script: patch-safeloader.py --factory openwrt-ath79-generic-tplink_eap245-v3-squashfs-factory.bin --input EAP245v3_5.0.0_\[20201022-rel59827\]_up_signed.bin --patch product-info --output factory-ca.bin

You should then be able to flash the resulting factory-ca.bin image.