souravsspace Said:
“Macbook pro 2015 lagging: my macbook pro 2015 suddenly started freezing and lagging. But when i connect it to charger.. All the lag and freezing problem solved. When i disconnect it. It's goes to the same problem. What to do with my old mac?”
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Troubleshooting Mac Power Brick Lag:
Reset your SMC and your NVRAM:
Sometimes, changes (i.e. Update Installations) are made, and then settings (i.e. power) become manipulated, technically. So, reset both. Note that is may take a few tries just to reset them successfully.
Use these Links: