wrong with SRAM and reflash

[Yu, Heeyeol]

Hi all
I tried to use sram-2003-09-13 and burned with shorting JP2.
Once I succeeded, but I can 'reflash' the board
So I tried to reuse sram with "dd if=sram.img of=/dev/mem0c0c".
After some quick blinking of two LEDs, console says
---
Jan 1 00:00:06 cardmgr[37]: could not open /var/run/cardmgr.pid: %m
Jan 1 00:00:06 cardmgr[37]: fopen(stabfile) failed: %m
Jan 1 00:00:06 cardmgr[37]: initializing socket 0
Jan 1 00:00:06 cardmgr[37]: unsupported card in socket 0
Jan 1 00:00:06 cardmgr[37]: no product info available
wlan0: erroz fetching interface information: Device not found
---
This doesn't mean that SRAM is burned in board.
What's wrong with me?

[Bruno Lopes F. Cabral]

Post by Yu, Heeyeol
Hi all
I tried to use sram-2003-09-13 and burned with shorting JP2.
Once I succeeded, but I can 'reflash' the board
So I tried to reuse sram with "dd if=sram.img of=/dev/mem0c0c".

to rewrite an already wrote flash you need to erase
it first. you can do avoid that step entirely using
wrflash utility to erase & rewrite on a single step

wrflash is into alios subdir, if I recall correctly

hope this helps

Cheers
!3runo