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Topic: Antrouter R1 with tl-wr741nd-v4 unbrick help

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Hi all,

before i start:
sorry for my english and i'm a newbe in this area.

So i have one antrouter R1 with openwrt and i succesfully bricked it. sad
I started 1 week ago to try unbrick, but nothing works.
Please help!

I post the HW and the resoults here:
HW:
i.imgur.com/rcUmvDL.jpg
i.imgur.com/wVmpcZk.jpg
i.imgur.com/Q01elrL.jpg
After boot from the RX:
Setup:
i.imgur.com/IjXI8M3.jpg
Simple boot:
i.imgur.com/Dcglkpr.jpg
Ethernet connection on and off sequently changing
Boot with reset button pushed:
Ethernet connection on
i.imgur.com/YgWQ6Ux.jpg

I have tryed with arduino and tftp like here:
forum.openwrt.org/viewtopic.php?id=42115

Arduino is sent the messages, the router changed the state to something, but cant ping it or its not connecting to tftp (firewall disabled RX-TX pins doublechecked grounds connected etc.)
i.imgur.com/7JhZ0gf.jpg
Sadly no luck...

(Last edited by Oyye on 3 Oct 2016, 05:30)

founded out the communication with an old arduino robot controller smile

when i start:

repeatedly says:
Serial port COM14 opened
## Booting image at 9f020000 ...
   Uncompressing Kernel Image ... Too big uncompressed streamLZMA ERROR 1 - must RESET

U-Boot 1.1.4 (Apr 11 2013 - 01:45:00)

U-boot for ELink, build by huangfc(QQ:343669866)



model:ELink M150
DRAM:  64 MB
led turning on for 1s...
id read 0x100000ff
flash size 8388608, sector count = 128
Flash:  8 MB
Using default environment

In:    serial
Out:   serial
Err:   serial
Net:   ag7240_enet_initialize...
: cfg1 0x5 cfg2 0x7114
eth0: 00:03:7f:ff:ff:ff
eth0 up
: cfg1 0xf cfg2 0x7214
eth1: 00:03:7f:ff:ff:fe
athrs26_reg_init_lan
ATHRS26: resetting s26
ATHRS26: s26 reset done
eth1 up
eth0, eth1
Autobooting in 1 seconds,Press p to stop autoboot!!


(for "p" nothing happens)

After reset button:
eth1 link down
eth1 link down
eth1 link down
eth1 link down
eth1 link down
eth1 link down
eth1 link down
eth1 link down
eth1 link down
eth1 link down
eth1 link down
eth1 link down
eth1 link down
eth1 link down
eth1 link down
eth1 link down
eth1 link down
eth1 link down
...

Tpl also not working. Pls help!

Oyye wrote:

Tpl also not working. Pls help!

tpl ??

Did you use a level shifter for the TX line to the device ??

thanks for reply,

at least the serial communication on serial is working now. (needed to disconnect the supply board with the antminer chip).

It's verry bad when problem follows problem...

the commands:
setenv ipaddr 192.168.1.101
setenv serverip 192.168.1.100
tftpboot 0x81000000 openwrt.bin
and stucked here

I have this problem now:

Easy-Link> tftp
eth1 link down
Using eth0 device
TFTP from server 192.168.1.100; our IP address is 192.168.1.101
Filename 'openwrt.bin'.
Load address: 0x80000000
Loading: *
TFTP error: 'File not found or No Access' (1)
Starting again

eth1 link down

Abort

network is from router is ok:

Easy-Link> ping 192.168.1.100
eth1 link down
Using eth0 device
host 192.168.1.100 is alive

From PC cant ping maybe its not a problem... dunno

The setup:
windows 8.1
Tftpd64 is running (firewall is disabled and checked in "Programs and Features")

in cmd:
C:\Users\Geri\Desktop>tftp -i 192.168.1.100 GET openwrt.bin
Error on server : ?????????????s
                                   Connect request failed

The bin file is in the tftp folder. i see in the show dir too.
I think the problem is on the PC.. or not?

(Last edited by Oyye on 6 Oct 2016, 19:28)

at the moment:
i.imgur.com/oOBpKMc.jpg

Your problem is on PC side

Oyye wrote:

Easy-Link> tftp
eth1 link down
Using eth0 device
TFTP from server 192.168.1.100; our IP address is 192.168.1.101
Filename 'openwrt.bin'.
Load address: 0x80000000
Loading: *
TFTP error: 'File not found or No Access' (1)
Starting again

While waiting for TFTPd response you get *
if data is airiiving #

But you've got "File not found" so server is running but no file
I assume some upper/lower case issues here.

Please test

tftp 0x80000000 OPENWRT.BIN

or install whireshark to debug/sniff your network traffic.

Dear elektroman,

here are the results:
i.imgur.com/t6abheJ.jpg

Its alive! smile

the problem was: windows 8.1

how its worked:
router:
192.168.1.101
pc:
192.168.1.102
virtualbox, bridged lancard:
192.168.1.100 - tftp server

at least smile

tying to revive the wireless and the usb but no success..


root@OpenWrt:/dev# iwinfo radio0 info
radio0    ESSID: unknown
          Access Point: 00:00:00:00:00:00
          Mode: Unknown  Channel: unknown (unknown)
          Tx-Power: unknown  Link Quality: unknown/70
          Signal: unknown  Noise: unknown
          Bit Rate: unknown
          Encryption: unknown
          Type: nl80211  HW Mode(s): 802.11bgn
          Hardware: unknown [Generic MAC80211]
          TX power offset: unknown
          Frequency offset: unknown
          Supports VAPs: yes  PHY name: phy0

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