Dead electrical outlets after replacement
It sounds like you've reversed the line and load connections. Modern GFCIs ship in a tripped state and will not reset unless the connections are proper


Line - This connects to the previous line in the circuit. In other words, with the circuit breaker on, this will be your live wires
Load - This connects to the next outlets in the series. Anything on this end will be protected by the GFCI


Also, make sure you've not reversed the hot and neutral.