I chip unlocked my iphone 5s and discovered that the only way for the phone to bring out 3g was to turn on data roaming after which it would show for like 2-5 days then dissappear again for less than 24 hrs before coming back (usually with an activation required prompt which usually dissapears after inputing the passcode). I've been using the phone like that for the past 2 months but 2 days ago it dissapeared and it hasnt come back since, I fear it will never come back. I thought about resetting network settings but it may ask me to re-input the settings for the chip and i dont know them....... Please does anyone know what i'm talking about and is there any trick to bringing it back?

Never mind it's back now