The Pokemon has to be happy and it has to be night time for it to evolve. You can raise happiness by making your Pokemon holding the Soothe Bell, etc. or by giving it massages at Veilstone City in Pokemon Pearl or the Resort Area (unlocked after completing the Sinnoh Dex and beating the elite four and the elite championship.)
Yes, Chingling does evolve. It is very hard to evolve Chingling, though. Chingling evolves by love and care, not by level.
chingaling evolves into chimeco by happyness chingaling evolves into chimeco by happyness
You must evolve Chingling.
Chingling will evolve with a high friendship level between 8pm-4am, not raising it up to a set level. you need it to level it up at least once after raising it friendship level to it's max.
chimecho when you increase it's happiness and grows a level
with high enough freindship
Chingling evolves when it's really happy with you.it doesnt evolve
Catch chingling in Mt. Cornet. then evolve when happy at night
Chingling must be leveled up at night with high happiness to become Chimecho.
* Spring Path Mt. Coronet * Evolve from #433 Chingling
near spring path near veilstone city or evolve a chingling
maximize friendship and level it up one during the night