my xbox wont read any game discs

my xbox 360 is the old white with silver disc tray and it wont read read my black ops 2 and the disc is super clean and my warrenty is voided since my dad took my xbox apart to clean it and now it wont read any discs and it was fine yesterday since it read
my black ops 2 disc in 1 go and the rest of my games in 1 go and i am just really confused why my xbox wont read any discs anymore and it read newer games perfectly also does the 3 ring of death effect the disc reading since i have had my xbox have the 3 ring
of death 6 times and was fine until today so if anyone has any idea's to help me please message me and sorry for my lack of punctuation since i dont use grammar on the internet

Can you hear the disc spinning?

Hello there!

My name is Jonny and I will be assisting you today!

First, thank you so much for contacting us regarding your concern.

I am very sorry you are experiencing this issue.

Can you try clearing your system cache by performing a power cycle by following the steps below?

To do this:

Remove the disc first.

For Xbox One:

- Go to the Home screen.

- Press the Menu button on the controller.

- Select Settings.

- Go to Sleep Mode & Start-Up

- Select Shut Down.

For Series X|S:

- Open Settings on Xbox.

- Select the General tab.

- Click on Power Options.

- Under the “Options” section, click the “Shutdown now” option.

- Click the “Shut down” button.

For BOTH methods, it is more effective by unplugging the power cord for 1 minute after putting the console down.

Once done, power up the console and see if the issue continues.

You can seek a third-party repair at a local repair shop as that would be the quicker and cheaper option.

Otherwise, you can use the link belie and see if there are any options available for you.

https://support.xbox.com/en-CA/help/hardware-ne...

how long would it take and how much is it?