#qi-hardware IRC log for Tuesday, 2013-09-17

DocScrutinizer05usual failure patters: #1 broken USB port (SMD receptacle lifts off from PCB); #2 cmt/modem defect, usual symptom: "No SIM" which basically means "modem doesn't answer". Caused probably by solder joints on FBGA snapping open, I guess from hard force to the kbd which bends the PCB and thus makes chip solder joints snap open00:03
DocScrutinizer05lately general eMMC failure observed with increasing frequency of reports00:04
DocScrutinizer05wear limit exceeded?00:04
DocScrutinizer05occasionally we see a FPC break, nothing unusual or exciting. The B2B connector is soldered to one side of the FPC and a rigid PCB patch with "jumpers" soldered to the opposide side at same end of FPC. When applying some force by whatever mechanical or thermal stress, the solder points snap open, I guess00:07
DocScrutinizer05other failure patters we seen more than once: magnet in battery lid or in LCD half falling off, resulting in uSD not getting mounted resp kbd slide not detected00:09
DocScrutinizer05proximity sensor going aethna, even burning a hole into the digitizer transparent plastic in front of it00:10
DocScrutinizer05lockswitch slider plastic knob wear, so you can't grip it anymore00:10
DocScrutinizer05keymat keycaps losing their paint (usual)00:11
DocScrutinizer05digitizer unspecified erratic behaviour, probably related to oil separator oxidizing or to mechanical damage00:12
DocScrutinizer05white spots on LCD, caused by excessive pressure/force applied00:12
DocScrutinizer05at least that's what I suspect00:12
kristianpaulmorning14:26
--- Wed Sep 18 201300:00

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