AUGUSTA — Seth J. Hill, 38, of Old Orchard Beach and formerly of Winslow, got a longer sentence Friday following a second jury conviction in less than two years for the same offenses.

The Maine Supreme Judicial Court in February ordered a retrial after ruling that “Hill did not voluntarily, knowingly, and intelligently waive his constitutional right to counsel.”

Hill represented himself at trial June 28, 2012. He was found guilty of operating under the influence and refusing to sign a uniform summons and complaint. At the time, he was sentenced to 96 hours in jail, fined $700 and his license was suspended for 90 days.

Hill appealed on the basis “that the trial court erred in concluding that he voluntarily, knowingly and intelligently waived his constitutional right to be assisted by counsel at trial, and in admitting in evidence Hill’s booking photograph and testimony regarding administration of ‘non-standard’ field sobriety tests,” according to the decision authored by Associate Justice Warren Silver.

On Thursday, Hill’s one-day retrial ended with a jury in Kennebec County Superior Court convicting him of operating under the influence and failing to sign a uniform summons and complaint.

He was sentenced to 10 days in jail, fined $600, and his driver’s license was suspended for 90 days.

The offenses occurred Sept. 10, 2011, on Bay Street in Winslow.