Unverified80% confidenceDecision RuleTime unknown
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
1
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80%
Confidence
Long-term
Relevance
-
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Unverified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86% similarUnverified维修配件质保应≥90天且书面写明，主板/电源板维修质保通常3-6个月，屏幕总成质保6-12个月；口头承诺不算数，必须在维修单上注明配件名称、编号和质保期85% 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85% similarUnverified维修质保期是核心筛选项：模块更换类（摇杆、电池、风扇）应提供≥3个月质保，主板级维修应提供≥6个月质保，仅承诺7-15天质保的服务方对维修质量信心不足，需警惕83% similar
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