Brazil's Supreme Court has overturned its nationwide ban on Telegram.
Judge Alexandre de Moraes said on Sunday that the messenger service had “fully met” the conditions imposed by the court.
Therefore, he revokes the decision to “completely suspend Telegram’s operations in Brazil.”
The highest Brazilian court ordered the nationwide blocking of Telegram on Friday.
Judge Moraes justified the measure with the fact that the online service had not complied with court orders to remove disinformation.
Telegram boss Pavel Durov then apologized, citing a “communication problem”.
On Saturday, the court then gave the messenger service a 24-hour period to meet the requirements and avoid a blockage.
The court's demands included the appointment of a legal representative for Telegram in Brazil, the deletion of some profiles and an explanation of steps the online service intends to take to combat disinformation.
Telegram is extremely popular in Brazil.
The app is installed on 53 percent of cell phones in Latin America's most populous country and is an important communication channel for Brazilian President Jair Bolsonaro.
The far-right politician had described Friday's court decision as "inadmissible" and a threat to Brazilians' "freedom".
Large online networks such as Facebook, Twitter and YouTube had repeatedly deleted Bolsonaro's posts for violating the rules against false information and temporarily blocked his accounts.
With a view to the upcoming presidential elections in October, the incumbent has recently relied primarily on Telegram.
According to current polls, Bolsonaro, who has been in office since the beginning of 2019, would lose the presidential election against ex-President Luiz Inácio Lula da Silva.