impossible to write firmware in MTD7 partition

[gianry]

When I try to write the .bin file into the MTD7 partition I receive the following error:

cat: write error: invalid argumet

I've used the command: cat /tmp/file.bin >/dev/mtd7

[Anime4000]

I wondering why want to write to mtd7 ?

[gianry]

I wondering why want to write to mtd7 ?

i've a modified partition file to enable the LAN SDS MODE changing. it is not possible with stock firmware

[Anime4000]

I believe you are trying to write active partition or partition/mtd in use.

[gianry]

I believe you are trying to write active partition or partition/mtd in use.

no, I've checked the boot partition is MTD5 .