Remzy katalyst

I've got this issue too, but i disassembled the phone n reassembled carefully to fix 1 of 3 issues i had n 1 worked but 2 needed software reinstallation. i think sometimes the phone does detect authenticity n as such gets a boot loop for incompatible screen type

the data ribbon cable connecting the HDD should b replaced

target disk mode or external SSD adapter would solve ur issue

just reinstall the mac os using external usb having os bootable or 1. turn off ur mac 2. power on while holding command and r keys simultaneously, this will boot ur mac in recovery mode 3. follow steps on screen and ensure are connected to the internet if that doesn't work replace HDD or connecting cables as d case may demand

format using microsoft operating system software, win 7 or 8 as d case may b. ur data will b stored in windows old if u do not format but reinstall os

actually, the digitizer is most definitely the issue. u may change the source u got the digitizers from. magnets have less effects on good digitizer as I've experienced. another thing is an exposed part of the home button flex, that causes malfunctions always

damaged lcd or internal screen, solution is to replace screen

ensure ur phone's operating system is up to date, n verify carrier support

I suggest u get someone to double check ur parts and how they were connected with the logic board

Seagate or western digital WD