Thank you my friend! I know that WHEN serial is working it is possible recover it. But, as I said , serial is lost,I don't have TX and RX signals. I tried find alternative points for them, but I didn't find. It's a friend's router, he tried recover and broke TX and RX pads.
The power led is on but the other leds are blinking all together in a loop of 4 seconds, so I can't use tftp without serial.
I think my alternatives are:
a) find alternatives points to TX and RX of the serial pads ;
b) Maybe use a flash programmer ( I don't have)
c) Try jtag, I don't know if it is possible in Atheros Chip, Broadcom chip I recovered a lot.
Posted: Wed Aug 31, 2016 20:44 Post subject: Serial pads
What is exactly wrong with the serial pads? I have never seen a ruined pad. I solder pins on to my routers as needed. I have never ruined a pad or a board. _________________ Before asking a question on the forums, update dd-wrt: Where do I download firmware? I suggest reading it all.
QCA Best WiFi Settings
Some dd-wrt wiki pages are up to date, others are not. PM me if you find an old one.
Atheros:
Netgear R7800 x3 - WDS AP / station, gateway, QoS
TP-Link Archer C7 v2 x2 - WDS Station
TP-Link TL-WDR3600 v1 - WDS Station
TP-Link 841nd v8 - NU
D-Link 615 C1/E3/I1 x 7 - 1 WDS station
D-Link 825 B1 - NU
D-Link 862L A1 x2 - WDS Station
Netgear WNDR3700v2 - NU
UBNT loco M2 x2 - airOS
Broadcom
Linksys EA6400 - Gateway, QoS
Asus N66U - AP
Netgear WNDR3700v3 - not used
MediaTek
UBNT EdgeRouter X - switch
Posted: Wed Aug 31, 2016 23:37 Post subject: Voltages
Check the input voltages, from the plug in the router. Find the ground on that plug first, I can't remember if it is the inside of the plug or the outside. With the power on, put the ground lead of the volt meter on that ground. Then probe the serial pads with that ground. You should find 3.3V on VCC. By the sounds of it, the router may be dead. _________________ Before asking a question on the forums, update dd-wrt: Where do I download firmware? I suggest reading it all.
QCA Best WiFi Settings
Some dd-wrt wiki pages are up to date, others are not. PM me if you find an old one.
Atheros:
Netgear R7800 x3 - WDS AP / station, gateway, QoS
TP-Link Archer C7 v2 x2 - WDS Station
TP-Link TL-WDR3600 v1 - WDS Station
TP-Link 841nd v8 - NU
D-Link 615 C1/E3/I1 x 7 - 1 WDS station
D-Link 825 B1 - NU
D-Link 862L A1 x2 - WDS Station
Netgear WNDR3700v2 - NU
UBNT loco M2 x2 - airOS
Broadcom
Linksys EA6400 - Gateway, QoS
Asus N66U - AP
Netgear WNDR3700v3 - not used
MediaTek
UBNT EdgeRouter X - switch