Abdel Fattah, one of the most prominent faces of the 2011 uprising, is being retried after he was sentenced to 15 years in prison on charges of assaulting a policeman at an illegal protest.
His detention, and that of several other activists, has raised fears among rights groups that Egypt under President Abdel Fattah al-Sisi could be returning to autocratic rule worse than that of the Mubarak regime.
They were to be released upon paying 5,000 Egyptian pounds (USD 700, 540 euros) each.
"The court also recused itself because of the defendants' lack of respect for it," possibly because they "had previously accused the presiding judge of supervising electoral fraud in 2005," he said.
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The court has also "demanded an investigation into the prosecutor's use of personal videos belonging to Abdel Fattah which violated the accused's privacy," Abdel Aziz said.
At a previous hearing of the retrial, the prosecutor showed personal videos of the activist which had no connection to the case, the lawyer said.
On June 11, Abdel Fattah and two co-defendants were denied entry when the verdict was announced and arrested immediately afterwards.
At the start of the retrial, Abdel Fattah had demanded new judges saying he had "no confidence" in the existing ones after the June 11 incident.
Abdel Fattah, 32, was arrested in November in a crackdown waged by the then military-installed authorities against Islamist and secular dissent since the army ousted Morsi last July.
The crackdown on Morsi's supporters has left at least 1,400 people dead and hundreds of his backers have been sentenced to death after speedy trials. More than 15,000 others have been jailed.