iPhone 11Pro Max - Not Open

[Spongebob89]

Hello,
I have an iPhone 11Pro Max where took a sea water on it in a protective bag that I had it. When I connect it on the PC the PC doesn't recognise it at all. I opened and I saw white corrosion on the down side of the screen (at the side of the charging port). I took some measurements on the battery connector with the screen connected and without the screen connected (at the attached photos). Could you tell me if the measurements that I took are OK without the screen attached on the main board. One measurement it has to be 0,002V and it was 0V.. is that OK? Also, if the main board is OK there is a way to fix the screen or I have to replace it definitely? I want only to syncronise my contacts in the cloud and not necessarily to fix it to be for daily use again. The phone as I know from the previous owner had taken again water from the same point and then he replaced the screen and worked again.

[wetpretzel2]

Re: iPhone 11Pro Max - Not Open

The iPhone 11 pro max has two battery connectors, one at the bottom as well as the one measured. There are only two active lines on that battery connector, the big one in the middle that you have a voltage read on and the one next to it with a voltage read on it. Diode values will give you a better understanding of what it going on with it. I would say, replace the charge port and screen, hook it up to a PC, back it up then get into the nitty gritty if still needed.

[Spongebob89]

Re: iPhone 11Pro Max - Not Open

The iPhone 11 pro max has two battery connectors, one at the bottom as well as the one measured. There are only two active lines on that battery connector, the big one in the middle that you have a voltage read on and the one next to it with a voltage read on it. Diode values will give you a better understanding of what it going on with it. I would say, replace the charge port and screen, hook it up to a PC, back it up then get into the nitty gritty if still needed.

Thanks for your reply. With only connected the connectors 1 & 2 the current that draw the iphone is about 500mA (if I disconnect the connector 1 the current falls to zero). This current is normal with olny these connectors connected? Also, there is a way to fix the Charging Flex (if it is indeed the problem there)?

[Spongebob89]

Re: iPhone 11Pro Max - Not Open

Finally I changed only the LCD screen and worked flawless.