Chosen Solution
What is that white part called? need a new one for a 6s pcb i bought water damaged and someone had almost broken it off and it falled off when I was on my way home with it.. Its something with the charging/power, phone dosent start by it self with batteri in, goes to apple loggo then black and a white line. if i plugg in the charger it starts fine and works good and can be unplugged.
This is designator FLDIP_RF (PN#LFD21829MMV1D889). It has nothing to do with the power/charge of the phone; it is a signal filter and only affects signal reception. It must be replaced but your charging problems are elsewhere. Have you done a proper decontamination of the logic board? If so, then start testing your main voltage rails (PP_BATT_VAA, PP_VCC_MAIN, PP5V0_USB) to see if they are shorted. Then apply power to see if they have the proper voltages. If they don’t then you need to test the secondary rails generated by PMIC and the U_PMU_RF.
