Based on the teardown the repairability of the Vivo Y55 seems to be relatively good. The back cover can be easily removed without the use of a heat gun and the battery and battery cable are easily accessible. However the use of adhesive for the battery may make it slightly more difficult to replace. The screen cable and screen can also be removed without having to remove too many components. Overall I would give the repairability of the Vivo Y55 a score of 8.5 out of 10.