How to upgrade TP Link router flash and install OpenWRT without Wi Fi loss
When you change 4MB flash chip to 16MB
and install OpenWRT everything works fine,
but not works to Wi-Fi. Router doesn't find Wi-Fi adapter.
Problem is the wrong location of ART partition in flash chip.
That's why you need to create custom size firmware file.
In this video shows how to do that!!!
How to create backup of ART & bootloader partitions
• How to create backup of ART & bootloa...
This method is suitable for many TP-Link routers.
e.g. TL-WR740N, TL-WR841N and others.
CONTENT:
1. How to disassemble the router and
de-solder 4MB flash chip -- 00:19
2. How to dump original 4MB flash in to *.BIN file
-- 00:48
3. How to create custum size firmware (16MB) -- 02:09
4. Write custum 16MB Firmware to
Flash chip (Winbond 25Q12BFV) -- 07:04
5. Turn on Router and test OpenWRT -- 08:59
Download "create_new_firmware.sh" from
https://gist.github.com/tuyenld/acb0f...
Commands:
Cut out BootLoader (first 128kB)
dd if=TL-WR740N_V4.21 of=Bootloader.bin bs=1 skip=0 count=131072
Cut out ART partition (last 64kB)
dd if=TL-WR740N_V4.21of=art.bin bs=1 skip=4128768 count=65536
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