Recently I want to change other custom ROM for my Mi Pad 4 (Clover), but something strange happens, some ROM can dirty flash nicely while some didn't. This catch my attention.
The symptom is that when flashing some ROMs, it did flash successfully, but become bootloop in the system logo. Then I head to twrp recovery, clean dalvik cache, data etc. But problem still exists.
But this popup gives me a clue for the solution
The system get stuck for 1-2 minutes and the "encryption unsuccessful" warning pops. It told me to reset my phone bla bla bla
Solutions
Turn out some of the ROM changed my MiPad's file system to f2fs for the sake of performance, I then go to Wipe > advanced wipe > select data > change or repair file system > change file system, change the file system back to ex4, and hola! I can boot into the new custom ROM again!
References
- https://forum.xda-developers.com/mi-a1/help/encryption-unsuccessful-help-t3763087
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