Is my iPhone 7 Plus dead?
I've been using my second hand phone for almost a year. I never had problems till this weird issue came up. I broke my phone's glass and replaced it with another original one. A week later my iPhone got malfunctioned and shut down a month ago. I tried lot of things and after a few hours the Apple bootup logo came up and stuck for few minutes. Then i tried to hard reset and some green pixels appeared. I waited for it to open for few hours. The pixels turned from green to blue then red. Exactly like this one.
I couldn't fix it without tearing it down then I gave it to a phone repair service which is quite popular in my city. First, they changed an integrated circuit and after 2 weeks later the same issue happened. Second, they changed it again and it came up after 5 days later. Last time, they said the issue was because of the processor and they changed it. A day later they told me that the board pins and connections were broken and they couldn't fix it then they gave me the device back.
Currently there is no green pixels and the device is opening. I plugged the phone to my PC for backup and it's opening but rebooting itself in every 5-10 minutes. What should I do? Should i try another phone repair service?
Thanks for the answers.