hi, I lost my operating system, can you help me please ?

[Android Central Question]

after I installed twrp recovery , I clicked on wipe then advanced wipe then I chosed all options , after that when I want to reboot system then it show me no os installed.
if you have any idea how to fix this please help me.

 

[Thacy]

What's your phone model? See if you can still boot it into recovery mode, then flash a stock ROM.

 

[Rukbat]

Or Download mode if it's a Samsung. Or find a TWRP-format PS and install it with TWRP.