Fenvi ax3000 (wr3000k)

datsNice · March 7, 2025, 7:22pm

The previous topic was auto-closed so I am starting new one.
I got myself a ch340g usb serial and I have the following problem. I have all the outputs in the console and also can interact with it when prompted for login creds. But there is no way i can stop the autoboot

*** U-Boot Boot Menu ***
 1. Factory mode
 2. Startup system (Default)
 3. Upgrade firmware
 4. Upgrade ATF BL2
 5. Upgrade ATF FIP
 6. Upgrade single image
 7. Load image
 0. U-Boot console
Hit any key to stop autoboot: 1
Press UP/DOWN to move, ENTER to select, ESC/CTRL+C to quit

I get this prompt for a second, but any keypress just forces it to keep booting.
Anything I miss?

brada4 · March 7, 2025, 8:16pm

Press [space] 0 [ENTER] as quickly as you can?

datsNice · March 7, 2025, 9:12pm

I think I tried almost every button.The weird thing that if i dont press any button it stays like for 1+ second and goes on, but if any pressed it passes more quickly

datsNice · March 14, 2025, 10:08am

Would be glad to see any suggestions

frollic · March 14, 2025, 10:29am

console input could be intentionally disabled, on PCB, in boot loader, or both.

datsNice · March 14, 2025, 11:40am

It is not completely disabled because as I mentioned - any input during the boot makes it skip the u-boot menu faster. Also I am able to interact with the router. When it boots to the system, I can interact with login/pass prompt, which are unknown either

frollic · March 15, 2025, 3:05pm

U-Boot and Linux (Openwrt) are two separate things though.

datsNice · March 16, 2025, 11:26pm

ok. so "/" key stops autoboot. I've successfully flashed snapshot for tenbay wr3000k.

hax · March 19, 2025, 4:59am

Hey I was able to flash this!
Use USB Uart and connec TX-RX, RX-TX, and G-G. no VCC.

power the router and keep pressing "/" to interrupt the autoboot
then select "3" for upgrade firmware

now use tftp method to upload and instal the sysupgrade file from https://firmware-selector.openwrt.org/?version=SNAPSHOT&target=mediatek%2Ffilogic&id=tenbay_wr3000k

after router reboots ssh into it using root as a useername and install luci
note: you will need to use apk add luci and not the usual opkg

all done!