5 GHz wifi option not showing on tp link mr600 v3 4g+ sim router, i change manually 5ghz channels and select bands etc also i change region but my 5ghz wifi not shoing, i have device which support wif

Dear TP-LINK Team, 5GHz wifi not showing and working on Tp Link Mr600 V3 (EU) model with latest firmware 1.1.0.0.9.1v0001.0Build220727Rel.74013n . I purchased this model from Ebay and now used it in P