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Phone · Samsung Galaxy Z Fold8 Ultra
Stock firmware and official updates for the Samsung Galaxy Z Fold8 Ultra (SM-F976U1), by region.
Puerto Rico LLABuildF976U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 7, 2026DetailsWhat's newPuerto Rico PCTBuildF976U1UES3AZILSamsung'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-F976B; this model can differ (chipset, network bands).
United States ACGBuildF976U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 7, 2026DetailsWhat's newUnited States AIOBuildF976U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 7, 2026DetailsWhat's newUnited States ATCBuildF976U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 7, 2026DetailsWhat's newUnited States ATTBuildF976U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 7, 2026DetailsWhat's newUnited States CCTBuildF976U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 7, 2026DetailsWhat's newUnited States CHABuildF976U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 7, 2026DetailsWhat's newUnited States DSABuildF976U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 7, 2026DetailsWhat's newUnited States DSGBuildF976U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 7, 2026DetailsWhat's newUnited States DSHBuildF976U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 7, 2026DetailsWhat's newUnited States FKRBuildF976U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 7, 2026DetailsWhat's newUnited States LRABuildF976U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 7, 2026DetailsWhat's newUnited States SPTBuildF976U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 7, 2026DetailsWhat's newUnited States TFNBuildF976U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 7, 2026DetailsWhat's newUnited States TMBBuildF976U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 7, 2026DetailsWhat's newUnited States TMKBuildF976U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 7, 2026DetailsWhat's newUnited States VZWBuildF976U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 7, 2026DetailsWhat's newUnited States XAABuildF976U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 7, 2026DetailsWhat's newUnited States XAGBuildF976U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 7, 2026DetailsWhat's newUnited States XARBuildF976U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 7, 2026DetailsWhat's newUnited States XMTBuildF976U1UES3AZILAndroidAndroid 17Security patchOct 2026ReleasedOct 7, 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
