Adzynba was again appointed acting Prime Minister on 26 July 2016, following Mikvabia’s resignation. On 15 August, Adzynba gave an interview with Sputnik Abkhazia in which he declared that he had applied for resignation because a number of recent appointments directly contravened the Law on Language which required the use of Abkhaz by government officials. Adzynba’s resignation was granted that evening by President Khajimba.

When President Khajimba dismissed Prime Minister Butba on 16 March 2015, he appointed Adzynba as Acting Prime Minister. On 20 March, Khajimba appointed MP Artur Mikvabia as Butba’s permanent replacement.

Adzynba was appointed First Vice Premier by Khajimba on 15 October 2014.

A Presidential election was originally scheduled to take place in 2014, however, the Constitution of Abkhazia required an election to be held within three months after the unexpected death of incumbent president Sergei Bagapsh on 29 May 2011. Only three candidates participated: outgoing Vice President and Acting President Alexander Ankvab, outgoing Prime Minister Sergei Shamba and opposition leader Raul Khajimba. Shamil Adzynba was picked by Shamba as his Vice Presidential candidate. The pair was nominated by an initiative group on 8 July and applied for registration on 16 July. All candidates passed their Abkhaz language test on 20 July 2011, were formally registered by the Central Election Commission on 25 July and received their certificates on 26 July.

Shamil Adzynba (Abkhazian: Шамиль Аӡынба , Georgian: შამილ აძინბა ; born 21 May 1970) is the current First Vice Premier of Abkhazia in the Government of President Khajimba, and a two-time acting Prime Minister.