In a criminal trial, the prosecution witheld a search warrant from the judge and jury, what can be done about that ? new trial?

Asked in South Yarmouth, MA - almost 2 years

there was a gps warrant obtained to track defendants vehicle. the battery dies, and then they get another warrant to track a cellphone. they talked about the gps, and showed all that.. but during the trial- prosecution failed to show or talk about the other search warrant, because it was..; pretty much illegal- they somehow got a warrant to track a cellphone that didnt even belong to the defendant. so they never talked about it, kept it hush. and then lied to the judge and jury- telling them that the way they found the defendants location was with the gps. but that was a lie- the battery died so they used the GPS. ---this is wrong right?? what do you think should be done, we are in the appeal process now. does that mean a new trial?