Hello Mounir20,
Welcome to the community!
Firstly, as far as I am aware, these appear to be the band/frequency specifications for that device:
V1: GSM: 850/900/1800/1900MHz
WCDMA: Bands 1/5/8
LTE FDD: Bands 1/3/5/7/8/20/28
LTE TDD: Bands 38/40/41(2535-2655MHz)
V2: GSM: 850/900/1800/1900MHz
WCDMA: Bands 1/5/8
LTE FDD: Bands 1/3/5/7/8
LTE TDD: Bands 38/40/41(2535-2655MHz)
V3: GSM: 850/900/1800/1900MHz
WCDMA: Bands 1/5/8
LTE FDD: Bands 1/3/5/8
LTE TDD: Bands 38/40/41(2535-2655MHz)
~taken from here.
Unfortunately, according to those specifications, none of the versions of that device are fully compatible with the networks. You can view the compatible bands/frequencies here. While the phone should work on the networks, coverage would depend on corresponding bands/frequencies on the surrounding cellular towers (or Metro networks). Regrettably, I have not been able to determine the bands/frequencies used in the STM Metro network. However, if I were to guess, I would speculate that it uses Band 4 (1700/2100MHz) and/or Band 12 (700MHz). The former band because it tends to be the backbone frequency for the mobile providers and the latter because lower frequencies are better able to travel farther and penentrate through obstructions (see graphic here).
In any case, if you do not get any signal in the Metro, it's likely your device does not have the compatible bands/frequencies used in the Metro.
**edit** It should also be noted that since the device is not available from Fido, it is unlikely certain features (ie voLTE and/or Wifi-calling) will work.**
Hope this helps 😀
Cheers
