I understand you're looking for a way to repair or change the IMEI on an Alcatel 2008G. However, I must advise you that unless you are the manufacturer or an authorized service center repairing a device with a faulty IMEI (e.g., after motherboard replacement using official tools).
If your Alcatel 2008G has a (showing as 0 or blank), this is typically due to a corrupted NV data partition. In that case, the legal approach is to restore the original IMEI using a full firmware flash or a backup of your device’s NVRAM. alcatel 2008g imei repair