I have a 7290 that i purchased from EBAY. Fortunately no major problems in fact it looks brand new. not to often but once in awhile I will pull it from holster and it will be blank and take a couple minutes to turn on . not a major issue a minor inconvenience. every now in then I have to do a battery pull. any thoughts? might a wipe and re-load resolve the issue?

It is possible that a wipe/re-load will fix the problem. Try it out, I think it's your best bet.

Had that issue on an old 7290. the thing worked great except for the delay. I did not get the delay until i loaded BBlight software. Reloaded the os and reloaded BBlight and it worked well , no more delay.