View source for Huawei P30 Pro Does not recognize sim card (No sim out of nowhere) Repair

{{Repair Guide
|Device=P30 Pro
|Affects parts=Flex cable, main board
|Needs equipment=Screwdriver set, tweezers, soldering iron, soldering station
|Type=Soldering, Part replacement
|Difficulty=3. Hard
}}
{{stub}}

==Problem description==
Repair of a problem where the sim card on a P30 Pro suddenly becomes unrecognized.
[[File:1663076592545.jpg|thumb|243x243px|flex connector example (Figure 1)]]

==Symptoms==

*No sim card detected/recognized
[[File:1663076592575.jpg|thumb|254x254px|Flex cable slot example (Figure 2)]]

==Solution==
Charging port flex cable On Huawei P30 pro, sim slot is located on the bottom of the phone. Charging port flex cable connects charging port to mainboard, as well as connecting sim slot daughter board to mainboard. For some reason (not sure if its simply a design flaw, mechanical stress or whatever..), pins gets broken off the connector (either on sim slot daughter board side or on mainboard side) and looses connectivity. Solution is to replace the flex cable, and before doing so, residue of the pins should be taken out of the connector.