The head of the Pyeongchang organising committee, Lee Hee-beom, confirmed he had written to the Iranian team "to apologise for the misunderstanding".
The problem started on Wednesday, when Games organisers said Iranian and North Korean athletes would be refused the Galaxy Note 8 devices from sponsor Samsung, loaded with essential logistical and competition information.
Although the organisers later backtracked, it sparked anger in Iran, where Samsung has a major commercial presence, and its athletes refused to accept the phones until there was a full apology.
The committee had initially claimed the phones were denied "because of existing UN sanctions", even though all UN sanctions on Iran were lifted in 2015 apart from those linked to arms and nuclear technology.
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Samsung sought to distance itself from the spat, saying in a statement that it was "not responsible for the distribution of the phones" and referring questions to Olympics organisers.
IRNA reported Thursday that "an informed source" had said Foreign Minister Mohammad Javad Zarif would stop using his Samsung mobile if there was no apology.
Although this was not confirmed, the report appeared to trigger a series of "No to Samsung" protests on Twitter.
"If I were a famous person, in response to Samsung's big insult, I would have thrown my Samsung mobile away on camera, and would have asked other famous people to join me," wrote one Twitter user.
"The fact that our revolutionary friends haven't climbed the walls of the South Korean embassy is a big improvement in itself," joked another Twitter user.
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