Screen damage or a display-path fault?
A visibly cracked display and a MacBook that runs with a black screen need different checks. Tell us about impact, lid damage, flicker and whether an external display works. Those observations help plan testing; they do not prove that a screen assembly is the only faulty part.
Battery, charger or charging circuit?
A short runtime may point towards battery condition, while a MacBook that will not charge can involve the adapter, connector or internal charging path. Include the charger details and any service warning. We assess the relevant parts before recommending a battery or board repair.
No power and liquid damage
Tell us what happened before the MacBook stopped working. If liquid reached it, switch it off and disconnect the charger where safe. Do not keep trying to start it. Explain any important files before assessment: repair, board replacement and data recovery are different decisions.
A repair worth approving
Compare the proposed repair with the MacBook’s overall condition and usefulness. A working machine with display damage may justify a different decision from an older machine with several major faults. Ask about parts, timing and the applicable warranty before approving the quote.