Oppo a54 mtk mdm bypass eft pro :

1- in eft pro mtk tab

2- select oppo

3- disable mdm

4- connect mobile volume up + down

5- after done Only mtk port

6- restore orange state to enable

7- mobile power on but bootloop

8- restore security backup zip file via eft

9- mobile power on mdm removed

10- now disable ota via mtk universel tool in adb mode

11- all done