1. open "my device" on the 6.1 phone, copy the pim file
2. open the storage card on the 6.1 phone, paste the pim file
3. put that mem card in the 6.0 device
4. open "my device" on the 6.0 phone and rename the pim file to "pimold"
5. menu->edit->paste->soft reset the 6.0 phone
6. Use the cellebrite to transfer as usual