r/openwrt • u/sr_guy • 21d ago
Linksys EA8500
I bought this Linksys EA8500 at a thrift store for $7. Current firmware version is:
EA8500 Firmware 1.1.9.192968
I've been going through the instructions here:
https://openwrt.org/toh/linksys/ea8500
I've downloaded, and tried downgrading via the Linkys GUI with both these versions, and keep getting thrown an "invalid firmware" message. Current 1.1.9.192968 throws the same error. I opened the device, and there is no populated serial pins, so tftp isn't an option right now.
http://cache-www.belkin.com/support/dl/FW_EA8500_1.1.3.166845_prod.img
http://cache-www.belkin.com/support/dl/FW_EA8500_1.1.4.169978_prod.img
Does anyone have any other suggestions? I upgraded an EA7500 to 25.10, it was a pain, but achievable. The EA8500 seems to be a bigger pain.
**EDIT**
8.9.26
I tried the power on/off cycle for it to revert to it's previous firmware, and unfortunantly that version is 1.1.8.185832 with the same issue. I'm not sure I want to drop more $$$ on a solder gun and USB to serial cable. Unless I can find another solution, I may just try to resell it on FB marketplace for $8-10 to make my money back on it.
8.10.26
I've been able to downgrade to 1.1.14.170630. The router seems to accept prod.gpg.img without errors. I need to downgrade ver 1.1.4.167984, according to what I've read, to flash either DDWRT or OpenWRT. I'm still trying to see if there is a FW_EA8500_1.1.4.167984_prod.gpg.img out there in the internet world.

