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- 19:41, 7 October 2023 ASRepairs talk contribs created page MacBook Pro A1990 Charger stuck at 5V repair (Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== The charging circuit on the MacBook Pro A1990 is not communicating with the charger to send in 20V. thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it! ==Symptoms== *On most cases, the board will not power up. *No charging ==Solution== ===Diagnostic Steps=== ==== Check voltage on PPBUS_G3H =...") Tag: Visual edit