iPhone 7 plus,Boot loop when home button is connected
I have a issue on a iphone 7plus , device was dead ,no waterdamage and all original parts , some testing en measurements did show a defective tristar.
Did put on a new tristar , device was back ,amps and charge ok .
But when device would boot it gets in to a bootloop.Did some diode measurements on the board but all looks fine.
Did swap with another lcd/touch all the same, but then I noticed that when flex off home button was disconected that device did boot ok.
So I pulled ic from mesa and mamba as a test , reconected homebutton but device went back to bootloop.
So I’m a bit stuck now, i think this a data issue , but witch ICs needs info from homebutton to boot correctly?
ps: I did try to activate device without homebutton, al went well, wifi ok, but each time activation cancelled “ not abel to connect apple server , please try again later”.
I know this looks like some issues with baseband , but voltage pma-ic for baseband tests ok .
Anyone some ideas?
Es esta una buena pregunta?