Question [Q] help! my one mini soft bricked? (solved)

hello all
recently I have unlocked my one mini's bootloader via htcdev but i haven't s-off it
after i installed twrp and attempt to flash a rom, it just cannot install the rom
now my situation is that I can only enter bootloader and recovery mode (i formatted the system)
in the recovery it shows that my internal storage is only 2073MB and it cannot mount external_sd and cache partition

can anyone guide me what should I do now?
or should i pick my device to htc's customer service center?

solved... I took my device to htc's customer service center and they have flashed the stock rom back for me