I have Samsung galaxy s3 with verizon wilreless (model number sch-i535). Recently there was software update available and I upgraded my software now I have android version 4.1.2 and every time I open my google maps it freezes and closes saying "unfortunately, maps has stopped." I use google maps all the time during work, as I travel a lot and make many deliveries and now I can't do anything. How can I download and install the previous version on my phone? or how can I fix the problem on my phone with google maps? please help.