fastboot flash recovery twrp_a5s.img
In TWRP, go to Wipe > Advanced Wipe . Select Dalvik, System, Data, and Cache. oppo a5s custom rom download work
If done incorrectly, you could "brick" your device. Proceed at your own risk. 🚀 Why Install a Custom ROM on Oppo A5s? fastboot flash recovery twrp_a5s