Unverified83% confidenceDecision RuleTime unknown
要求维修后提供质保凭证，正规换件质保应≥90天且明确'同故障免费复修'，仅口头承诺无凭证的不接受，换下的旧件应要求当面返还以防偷换
1
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83%
Confidence
Long-term
Relevance
-
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Unverified正规维修应提供书面质保：摇杆/换件类通常质保3个月以上，主板级维修优选质保90天含'同故障复发免费返修'，仅口头承诺不留凭据的应回避87% similarUnverified维修后应索要保修承诺，正规维修保修期通常为90天至半年；只保'配件不保工艺'或口头承诺无凭证的维修点风险高85% similarUnverified维修完成后应索要维修质保凭证，正规店对更换的核心配件提供90天以上质保，对同一故障复发免费返修，无质保承诺的维修风险高81% similarUnverified维修质保应重点确认是否为「同一故障点」质保：正规维修对更换的配件本身提供90天以上质保，但仅覆盖所修部位，索赔时需保留维修单据与故障记录80% similarUnverified维修质保时长应≥3个月且明确覆盖'同一故障复发免费维修'，若质保仅7-15天或仅保更换配件不保维修工艺，说明维修方对技术不自信79% similar
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