fake rolex

I already try with tlv 38, without any luck to reflash my 550a to 550b.

I'll tell again. Use VSIF TLV38.

What firmware are you trying to upload, I was able to upload a new firmware to ours c550A, but when I try to change to eurodocsis. I am having the same errors. After talk with the arris people, they say is because the 550a is incompatible with the firmware for the 550b. May be could be your problem ?

I have got the correct CVC from the manufacturer but still it shows the same error.
Can i bypass the CVC validation before image download

Use VendorSpecific and inside parenthesis put GenericTLV TlvCode 38 TlvLength 1 TlvValue 0x01 - actual syntax depands on Your Docsis compiler.

Hello Prasad,
You are getting this error because the CM verifies the MFG CVC before it starts to download the upgrade image on to it. In your case either the MFG CVC tlv is missing in the config file or an improper MFG CVC is added into the CM config file.
You can do the following:
1) Get the correct MFG CVC for your CM. This CVC is given by the DOCSIS root CA and is manufacturer specific. IN your case for the test purpose there will be some CVC used by your CM.
2) Once you have the correct CVC file, the CM can validate it and upgrade the firmware on the modem.

Thanks
Pradeep

Thanks for the reply,

Could you please provide the steps for disabling the CVC, I havent used this feature earlier.

Maybe U can use TLV38 to disable cvc validation.

Hello prasad,

you need the certification from the manufactor of the cable modem. This CVC must be in into the configfile.

Which cable modem are you using?

Regards,

Peter