I have looked into this for you. There could be several things that can cause this, recent updates needed, Battery, etc.... So, instead of guess work, What I am doing is giving you (In case you don't have it) the owners complete manual with trouble shooting etc.... And some other links for support and numbers etc.... I hope this helps, but like i said there are several things that could cause this. My guess is battery possible and or updates. Please check out the manual and links I have posted. Thanks So Much Mike, Please if you can rate accordingly for my free help. Also I am putting my link at bottom for my personal Page of services I offer. Thanks Again, Mike
Answers & Comments
Hello Mr Wilson,
I have looked into this for you. There could be several things that can cause this, recent updates needed, Battery, etc.... So, instead of guess work, What I am doing is giving you (In case you don't have it) the owners complete manual with trouble shooting etc.... And some other links for support and numbers etc.... I hope this helps, but like i said there are several things that could cause this. My guess is battery possible and or updates. Please check out the manual and links I have posted. Thanks So Much Mike, Please if you can rate accordingly for my free help. Also I am putting my link at bottom for my personal Page of services I offer. Thanks Again, Mike
http://store.humminbird.com/media/document/587_597_HD_DI_Manual.pdf
http://store.humminbird.com/products/399598/587ci_HD_Combo
http://beta.fixya.com/users/mc1beanThank You!!