Computer screen and trackpad unstable

Unstable = jumps from program to program. Screen flickers. Cursor jumps all over the place.

Please determine if the same problems occur in "Safe Mode": How to use safe mode on your Mac - Apple Support

If you want to elicit help from your fellow Mac users, I suggest you consider composing a brand new question with a descriptive title. Please be specific regarding the behavior you are experiencing, the actions you took to address it, etc. Consider using this User Tip as a guide: Writing an effective Apple Support Communities Question - Apple Community. Ranting about a Mac that has cost you the equivalent of one cup of coffee per week for nine years will not lead to a solution.

All anyone can determine from what you have written so far is that you have a flickering screen and a jumpy cursor. There are a variety of possibilities for that, and having replaced the battery yourself gives rise to a lot of potential concerns.

Firstly, Apple has no right to stop me from making constructive criticism of his devices.

I already addressed that by posting the link to the terms; since they own the site, they can moderate,edit, remove any post. We all agreed to their terms when we signed up for an account.

Secondly much of the software on my Mac Book Pro is not owned by at usApple nor are the devices I attach to it.

Unfortunately, you do not own the software. If you paid for it, you only paid for a license to use it (same if it was free). As an example, I'm posting a link to the licensing terms; here is a sample excerpt:

The Apple software (including Boot ROM code), any third party software, documentation, interfaces,

content, fonts and any data accompanying this License whether preinstalled on Apple-branded

hardware, on internal storage, on removable media, on disk, in read only memory, on any other media or

in any other form (collectively the “Apple Software”) are licensed, not sold, to you by Apple Inc. (“Apple”)

for use only under the terms of this License.

https://www.apple.com/legal/sla/

That, by the way, is standard procedure with all companies.

Another unfortunate fact: any 2013 is not going to work as well as a, say, 2020 or 2021 Mac will. More uptodate hardware, potent processors, etc all make a difference and when a new OS is developed, they test it on a newer machine, not an outdated one. Plus, Monterey includes major changes, a new filing system, etc, so anything 8 years old will exhibit compatiblity problems.

You should try a fresh copy install without any older apps and then install an app one at a time > test.

wbt2 wrote:

Is in-built obsolence of a Mac Book Pro 2013 ethical?

<In-built obsolete Mac Book Pro 2013.log>

?

Update your software— you are woefully behind < macOS Sierra 10.12.6 (16G2136) >

Keep your Mac up to date

Catalina macOS 10.15.7

verify you are using the Safari browser to download/initiate the macOS links.

The older macOS installer backups on this server:

https://support.apple.com/en-us/HT211683

macOS Catalina - Technical Specifications - Apple Support

https://support.apple.com/kb/SP803?locale=en_US

System requirements macOS 10.15 Catalina

MacBook: Early 2015 or newer

MacBook Air: Mid 2012 or newer

MacBook Pro: Mid 2012 or newer

Mac Mini: Late 2012 or newer

iMac: Late 2012 or newer

iMac Pro

Mac Pro: Late 2013 or newer; Mid 2010 or Mid 2012 if upgraded with a recommended Metal-capable GPU

*If you have a late 2013 you can run Big Sur ...MacBook Pro (Late 2013 or later)

See Vintage and Obsolete—

Obtaining service for your Apple product after an expired ...

Hard to understand your question. This is a technical support community not a place to discuss ethics.

That said, technology changes over time. Are carburetors obsolete? Are 32 bit apps obsolete? Will gas powered cars become obsolete?

Yes, older devices which rely on old technology become obsolete. This is not planned obsolescence but is due to technology changing.

You back up to an external hard drive, not iCloud - why? Because iCloud is a syncing mechanism, not a true backup.

Sierra worked Ok for 9 years so why upgrade?

Because technology marches on. Nothing lasts forever. I trust electronic devices to be troublefree for as long as they are covered under warranty - after that, all bets are off.

As for these forums, Apple owns the site and gets to decide what can be discussed - it is their playground, not ours.

I don't understand; are you asking about your 2017 Mac Book Air, or the 2013 one, or...?

Time Machine does not back up to iCloud. To learn how to use Time Machine please read Back up your files with Time Machine on Mac - Apple Support.

Types of disks you can use with Time Machine on Mac

Your Discussion has become too confusing for me.

wbt2 wrote:

Sorry, Time Machine works on neither machine, evidently for different reasons.

It does not work on the Mac Book Air 2017 because during the Monterey upgrade I lost my admin access.

It does not work on the Mac Book Pro because the machine is unstable. For example it keeps losing its internet connection.

Please review the links I posted. Time Machine does not require an Internet connection.

If you are interested in fixing your Mac, please start a new Discussion as I recommended earlier. Thanks!

To re-iterate: these forums are not to discuss "ethics". See the terms here:

https://discussions.apple.com/terms