While I had done flashing of OPENWRT to WL-330N3G by using the recovery mode and TFTP binary transfer fine in the past,
the newest versions of WL-330N3G with firmware 1.0.3.4 (or newer) don't allow that kind of firmware update anymore.
From the outside the units are identical, no new version number on the sticker.
TFTP upload to the unit works fine, but when it is expected to start flashing the loaded data, it takes just a few seconds until it reboot and still has old firmware installed. Flashing the unit back to older stock firmware does not help. Looks like they changed something in the boot process.
Did anybody also came across this new problem?