How to put an android software into a phone?

[AC Question]

my phone galaxy s2 gti9100 is not having any operating software like the android jellybean just got erased after i gave factory reset and also the phone was already rooted

 

[dpham00]

Re: how to put an android software into a phone

The os doesn't get erased after a factory data reset. Are you sure something else wasn't done?

In any event, you would have to flash a new rom,if your os was erased