Google Fi Dialer Codes
Here are a list of dialer codes that can be used with Google Fi. These codes shouldn’t be used unless you are aware that they may impact the way your Fi phone switches between carriers.
Carrier Selection
The following options are only available for “Designed for Fi” phones. They will not work on the iPhone or “Compatible with Fi” phones because they are T-Mobile only. See which class of phone you have here.
| ALPHA CODE | DIALER CODE | DESCRIPTION |
| FI AUTO | *#*#342886#*#* | Set carrier selection to automatic. |
| FI NEXT | *#*#346398#*#* | Select Next Carrier |
| FI SPR | *#*#34777#*#* | Select Sprint for 2 hours |
| FI TMO | *#*#34866#*#* | Select T-Mobile 2 hours |
| FI USC | *#*#34872#*#* | Select US Cellular 2 hours |
| FI SIMON | *#*#3474666#*#* | Select Three (UK only) |
Service Codes
| ALPHA CODE | DIALER CODE | DESCRIPTION |
| FIXME | *#*#34963#*#* | Force reactivation |
| FI INFO | *#*#344636#*#* | Get information about the current network. |
| INFO | *#*#4636#*#* | Get general phone information. |
| DEBUG | *#*#33284#*#* | Phone Debug Options |
| PRL | *#*#775#*#* | Force download of Preferred Roaming List (Sprint) |
| PRL | *228 | Force download of Preferred Roaming List (US Cellular) |
| FI ROAM | *#*#347626#*#* | Turn on International Roaming |
| SWITCH SIM |
*#*#794824746#*#* | Switch to / from eSim. |