Based on the teardown the repairability of the Vivo Y28 seems to be quite low. The use of adhesive for the back cover and battery makes it difficult to open the device without causing damage. Additionally several components need to be disassembled and the mid frame needs to be removed to access certain parts making repairs more complicated and time-consuming. However the battery cable and battery are easily accessible and pull tabs are provided to remove the battery which are positive aspects for repairability. Overall I would give the device a score of 6.0 out of 10 for repairability.