If you are looking for a firmware "dump" file for an (likely using the Sunplus 1506 or 3510 chipset) with a 4MB flash capacity, you are likely trying to recover a bricked receiver or update its system software manually via a programmer (like the CH341A) or RS232. What is a "Dump" File?
Since these files are proprietary, they are usually hosted on satellite enthusiast forums. Look for reputable communities like Satellite-Receiver.com , GSMSandwich , or Pak-Design . Download Dump Echolink 111 3510 4Mb rar
Sunplus 1506G / 1506TV / 3510 (Verify your specific board). Size: Exactly 4,096 KB (4MB). Format: Usually .bin (inside a .rar or .zip archive). Important Safety Tips If you are looking for a firmware "dump"