Chosen Solution
I have an iphone 7 plus that at recovery itunes me from 4014 error. The phone went into contact with liquids, but there were no signs of oxide inside, because it was caught in time. identified short circuit on the line 3 volt nand, I remove the short, but to restore itunes me from error 9 … Dissald the nand and I put another one that is safe, but now it gives me 4014 error .. I have tested voltage drops on pads under nand and they are ok. voltages nand prensenti 3 volt - 1, .8 v - 0.9 tristar ok what else can I check? UPDATE:
this is the resistor
To calculate resistors in parallel, it is 1/((1/R1)+(1/R2)). That configuration that you tried would give you 4K. In parallel, the resultant resistance is always lower than the smallest one. Perhaps more importantly, R1703 is 24.9 Ohms, not 24.9 KiloOhms. You’re off by three orders of magnitude :>). I looked around and finding a 24.9R resistor in a 01005 package is very difficult. You could put two of these in parallel…it will give 24.95R. Did you program the NAND prior to putting it into the logic board. If it has the wrong serial number, it would probably give you an error 4014 type message.
this error is normally caused by either a bad cable or a bad connector port, try another cable first, if that doesn’t work, then time to replace the lightning port
