| Steps: |
|
| # You need |
| ## ***NVME M.2 SSD*** – I used samsung 970 EVO Plus 250 GB NVME M.2 |
| ### Sintech Adapter kit e.g. [link|https://mackabler.dk/ngff-m2-pcie-ssd-kort-1285.html?q=m2%20adapter|https://mackabler.dk/ngff-m2-pcie-ssd-kort-1285.html?q=m2%20adapter] |
| ### Alternatively you may use OWC SSD, which does not require adapter – see [link|https://www.owcdigital.com/products/aura-pro-x2|https://www.owcdigital.com/products/aura-pro-x2]. |
| ### However OWC ssds are slower than the newest Samsung ssds. |
| ### Recovery USB disk with OSX – ref [link|https://support.apple.com/en-in/HT201372|https://support.apple.com/en-in/HT201372] I used catalina |
| |
|
| # First make time machine backup of mac to external USB disk. |
| # Boot in recovery mode (power + alt) to start from recovery disk |
| # Then format the new ssd in diskutility (erase + first aid) |
| # Shutdown down mac, remove back plate, disconnect battery. |
| # Then install new ssd in m2 enclosure and swap it with old SSD. |
| # Boot in recovery mode (power + alt) to start from recovery disk. |
| # Mount external USB disk from (2) |
| # Finally restore time machine backup from (2) to new ssd. |