Help while custom rom install getting exaclamatory icon in left corner

[mukund1420]

while custom rom install getting exaclamatory icon in left corner unable to start device


<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> recovery.tar.md5 is valid.
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..

 

[Bg260]

Hello. Probably going to need a little bit more information, Device make and model, What ROM? What are you trying to do ? I'm going to guess it's a Samsung because that looks like Odin. I need you to help me, so I can help you.