Motivated by the long-standing discrepancy in lepton flavor universality ratios and we assess the status of scalar leptoquark states , and which can in principle provide a desired enhancement of in a minimal setup with two Yukawa couplings only. We consider unavoidable low-energy constraints, -pole measurements as well as high- constraints. After setting mass of each leptoquark to TeV we find that of all considered states only leptoquark, coupled to both chiralities of leptons and quarks, is still a completely viable solution. On the other hand, the scenario with is in growing tension with and with the LHC constraints on the di-tau tails at high- while the scenario is in tension with the observable. We comment on the future experimental tests of scenario. Furthermore, a scenario of the leptoquark coupled exclusively to right-handed SM fermions and a right-handed neutrino is also investigated as a potential solution for the with possible effects also in .