R36 Recovery Guide

 

The following procedures will enable you to load R36 firmware back to the unit. Your PC requires TFTP server to upload R36 firmware.  (Please note that the commands to insert in the step-by-step procedures will be in blue colour font)

 

 
Requirements:
·         R36 x1
·         Console Board x1
·         Console Cable x1
 
GPIO Interface:



Before Start:

·          Configure your PC’s IP , for example : 192.168.1.123
·          Set terminal console with Baud rate 115200-8N-1
·          Copy firmware to tftp server, for example : R36-1.2.0.7.img
 
Step 1: Issue hyper terminal application on your PC with 115200-8N-1.
Boot the R36. Your terminal console will display the following as shown below. Press 2 from the options provided in order for you to continue. 
 
Step 2:
a.       Warning! Erase Linux in Flash then burn new one. Are you sure?(Y/N)
ð  Y (enter)
b.      Input device IP (192.168.1.1) ==:
ð  192.168.1.1 (enter)
c.       Input server IP (192.168.1.123) ==:
ð 192.168.1.123 (enter)
d.      Input Linux Kernel filename (xxxxxxx) ==:
ð  R36-1.2.0.7.img(enter)
 
 
Step 3:  It will reboot automatically after finish the upgrade procedure.
Everything is done.. Enjoy!!

Author: ALFA Network Inc.

ALFA Network Inc. https://www.alfa.com.tw

19 thoughts

  2. hello, I have a problem: U-Boot 1.1.3 (Jan 12 2010 – 14:34:09)Board: Ralink APSoC DRAM: 32 MBrelocate_code Pointer at: 81fb0000 Set info->start[0]=BF000000flash_protect ON: from 0xBF000000 to 0xBF01D423flash_protect ON: from 0xBF030000 to 0xBF030FFF*** Warning – bad CRC, using default environment============================================Ralink UBoot Version: 3.3——————————————–ASIC 3052_MP2 (Port5None)DRAM component: 256 Mbits SDRDRAM bus: 16 bitTotal memory: 32 MBytesFlash component: NOR FlashDate:Jan 12 2010 Time:14:34:09============================================icache: sets:256, ways:4, linesz:32 ,total:32768dcache: sets:128, ways:4, linesz:32 ,total:16384 ##### The CPU freq = 320 MHZ ####SDRAM bus set to 16 bit SDRAM size =32 MbytesPlease choose the operation: 1: Load system code to SDRAM via TFTP. 2: Load system code then write to Flash via TFTP. 3: Boot system code via Flash (default). 4: Entr boot command line interface. 9: Load Boot Loader code then write to Flash via TFTP. 03: System Boot system code via Flash.## Booting image at bf050000 … Image Name: Linux Kernel Image-0.1.0.8-0 Created: 2010-08-25 10:36:29 UTC Image Type: MIPS Linux Kernel Image (lzma compressed) Data Size: 5205952 Bytes = 5 MB Load Address: 80000000 Entry Point: 80287000 Verifying Checksum … Bad Data CRCCan you help me?

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  9. i buy RS232 Serial Port To TTL Converter Module SP3232EEN 5V/3.3V W/ Jump Cables..and i see at youtube use VS2# MAX3232 RS232 Serial Port to TTL Converter Module DB9 Connector with Cables..RS232 Serial Port SP3232EEN and VS2# MAX3232 RS232 is it the same or not?

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  11. U-Boot 1.1.3 (Sep 10 2013 – 16:12:15)Board: Ralink APSoC DRAM: 32 MBrelocate_code Pointer at: 81fb0000flash_protect ON: from 0xBF000000 to 0xBF01D423flash_protect ON: from 0xBF030000 to 0xBF030FFF*** Warning – bad CRC, using default environment============================================Ralink UBoot Version: 3.3——————————————–ASIC 3052_MP2 (Port5None)DRAM component: 256 Mbits SDRDRAM bus: 16 bitTotal memory: 32 MBytesFlash component: NOR FlashDate:Sep 10 2013 Time:16:12:15============================================icache: sets:256, ways:4, linesz:32 ,total:32768dcache: sets:128, ways:4, linesz:32 ,total:16384 ##### The CPU freq = 320 MHZ ####SDRAM bus set to 16 bit SDRAM size =32 MbytesPlease choose the operation: 1: Load system code to SDRAM via TFTP. 2: Load system code then write to Flash via TFTP. 3: Boot system code via Flash (default). 4: Entr boot command line interface. 9: Load Boot Loader code then write to Flash via TFTP. 03: System Boot system code via Flash.## Booting image at bf050000 … Image Name: Linux Kernel Image-V1.2.0.9 Created: 2013-05-24 9:46:57 UTC Image Type: MIPS Linux Kernel Image (lzma compressed) Data Size: 6000576 Bytes = 5.7 MB Load Address: 80000000 Entry Point: 80294000 Verifying Checksum … Bad Data CRCHellp plc

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  12. ##### The CPU freq = 320 MHZ ####SDRAM bus set to 16 bit SDRAM size =32 MbytesPlease choose the operation: 1: Load system code to SDRAM via TFTP. 2: Load system code then write to Flash via TFTP. 3: Boot system code via Flash (default). 4: Entr boot command line interface. 9: Load Boot Loader code then write to Flash via TFTP. 03: System Boot system code via Flash.## Booting image at bf050000 … Image Name: Linux Kernel Image-V1.2.1.2 Created: 2013-09-10 7:29:24 UTC Image Type: MIPS Linux Kernel Image (lzma compressed) Data Size: 5992384 Bytes = 5.7 MB Load Address: 80000000 Entry Point: 80294000 Verifying Checksum … Bad Data CRC

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  13. Hi, I'm J2M from France. I have anything for putting the firmware back to my R36, but I'm not a specialist and I can't understand the procedure.Is there someone to help me, for settings and process? It will ber great. Thanks a lot. (If you speak french it's more better!!!)

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    1. Yes, i am having some issues.. im not getting any output in hyperterm when i plug in the r36. im using windows 7 with a usb to serial device connected to a rs232 to TTL converter. Hyperterm is configured to the specs in the video, wondering if i have the pin out correctly on the R36.

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