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Phone · Samsung Galaxy Z Fold8
Stock firmware and official updates for the Samsung Galaxy Z Fold8 (SM-F971U1), by region.
Puerto Rico LLABuildF971U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 8, 2026DetailsWhat's newPuerto Rico PCTBuildF971U1UES3AZILSamsung's official release notes, newest first.
• Security The device is protected with improved security. These changes may vary depending on the model, country, or network operator of the customer environment.
Released for 21 CSCs: ACG, AIO, ATC, ATT, CCT, CHA, DSA, DSG, DSH, FKR, LLA, LRA, PCT, TFN, TMB, TMK, VZW, XAA, XAG, XAR, XMT
Source: Samsung• Stability and reliability Device behavior has been improved. • Security The device is protected with improved security. These changes may vary depending on the model, country, or network operator of the customer environment.
Released for 21 CSCs: ACG, AIO, ATC, ATT, CCT, CHA, DSA, DSG, DSH, FKR, LLA, LRA, PCT, TFN, TMB, TMK, VZW, XAA, XAG, XAR, XMT
Source: Samsung• Stability and reliability Device behavior has been improved. • Security The device is protected with improved security. These changes may vary depending on the model, country, or network operator of the customer environment.
Taken from the SM-F971B; this model can differ (chipset, network bands).
United States ACGBuildF971U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 8, 2026DetailsWhat's newUnited States AIOBuildF971U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 8, 2026DetailsWhat's newUnited States ATCBuildF971U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 8, 2026DetailsWhat's newUnited States ATTBuildF971U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 8, 2026DetailsWhat's newUnited States CCTBuildF971U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 8, 2026DetailsWhat's newUnited States CHABuildF971U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 8, 2026DetailsWhat's newUnited States DSABuildF971U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 8, 2026DetailsWhat's newUnited States DSGBuildF971U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 8, 2026DetailsWhat's newUnited States DSHBuildF971U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 8, 2026DetailsWhat's newUnited States FKRBuildF971U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 8, 2026DetailsWhat's newUnited States LRABuildF971U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 8, 2026DetailsWhat's newUnited States SPTBuildF971U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 8, 2026DetailsWhat's newUnited States TFNBuildF971U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 8, 2026DetailsWhat's newUnited States TMBBuildF971U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 8, 2026DetailsWhat's newUnited States TMKBuildF971U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 8, 2026DetailsWhat's newUnited States VZWBuildF971U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 8, 2026DetailsWhat's newUnited States XAABuildF971U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 8, 2026DetailsWhat's newUnited States XAGBuildF971U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 8, 2026DetailsWhat's newUnited States XARBuildF971U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 8, 2026DetailsWhat's newUnited States XMTBuildF971U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 8, 2026DetailsWhat's newReleased for 19 CSCs: ACG, AIO, ATC, ATT, CCT, CHA, DSA, DSG, DSH, FKR, LRA, TFN, TMB, TMK, VZW, XAA, XAG, XAR, XMT
• Security The device is protected with improved security. These changes may vary depending on the model, country, or network operator of the customer environment.
Released for 21 CSCs: ACG, AIO, ATC, ATT, CCT, CHA, DSA, DSG, DSH, FKR, LLA, LRA, PCT, TFN, TMB, TMK, VZW, XAA, XAG, XAR, XMT
Source: Samsung• Stability and reliability Device behavior has been improved. These changes may vary depending on the model, country, or network operator of the customer environment.
Released for 21 CSCs: ACG, AIO, ATC, ATT, CCT, CHA, DSA, DSG, DSH, FKR, LLA, LRA, PCT, TFN, TMB, TMK, VZW, XAA, XAG, XAR, XMT
Source: Samsung
