5.1.6 Possible faults on handset
5.1.6.1 Mobile unit faulty due to humidity
Note:
Most humidity damages on the front side under the keypad. Look at all
electronic components on the back side.
Remaining flux on the component side could look similar to a humidity damage
(white deposits) but it will disappear when heating it up with a hot air blower.
Recommendation:
When you are not sure whether deposit is humidity or flux, heat the area concerned
with a hot air blower and scrap the unit only when deposit doesn’t disappear.
The pictures below are taken from G2000 and 3000 handsets.
R
Humidity
--> scrap
No scrap
Flux
Scrap
