I need help gaining access to my AVTECH MODEL AVR-7604LN - COMPRESSION H.264
 
	. The user is Admin and I have tried several generic passwords and generators with no success. 
 
	Also i tried many firmware file for this board , DVR power and work up with different name and logo without password but cameras not work  , this DVR support 1080N AHD , but most of this firmware is for 720p 
 
	firmware for this DVR size is 16mg "MACRONIX  MX25L6433F - DVR AVTECH"
 
	AHB700XT8-3520D V4.03B  0197166178
 
	 
 
	link of firmware and startup rerecord
 
	firmware in this link has password "i don't know it " i backup it from bios ic
 
	https://drive.google.com/drive/u/0/folders/1s3k3ZLlFVC3I6bW5vkZ8QgRwHR9XIZcF
 
	can someone please help a brother out.