CSC stands for Country Specific Code, so every single country (and even
different providers in one country) have different codes, for csc
features, wallpapers, sounds etc. So it is quit important to have the
right csc file on your phone for your provider (so you can have all features which comes with your provider (like wifi calling)).
You may ask yourself now, where can this be flashed on? Basically on
every stock based rom, as well as on stock roms (who are rooted of
course). So: root and a recovery (custom) are required!
Code:
"ATO", "Austria Open unbranded"
"ATT", "USA AT&T branded"
"AUT", "Switzerland unbranded"
"BOG", "France Bouygues branded"
"BRI", "Taiwan unbranded"
"BTU", "United Kingdom unbranded"
"CHC", "Chinese unbranded"
"COS", "Greeze Cosmote branded"
"CTI", "Argentina Multi-CSC contains: CDR, CHL, COM, CPA, CRC, CTI, CTP, CTU, ECO, PCT, PET, PGU"
"DBT", "Germany unbranded"
"DDE", "Germany Multi-CSC contains: DCO, DDE, DTM"
"ETL", "Czech Republic unbranded"
"EUR", "Greece unbranded"
"EVR", "United Kingdom T-Mobile branded"
"FTM", "France Orange branded"
"GBL", "Bulgaria unbranded"
"H3G", "United Kingdom H3G branded"
"HTS", "Sweden Mitt3 branded"
"ILO", "Israel Multi-CSC contains: CEL, ILO, PCL, PTR"
"INS", "Indian Multi-CSC (FD variant) contains: BNG, INS, INU, NPL, SLI, SKL"
"ITV", "Italian unbranded"
"IUS", "Mexican unbranded"
"KTC", "Republic of Korea unbranded"
"LUX", "Luxembourg unbranded"
"MEO", "Portugal unbranded"
"MOT", "Slovenia unbranded"
"NEE", "Nordic Countries unbranded"
"NZC", "New Zealand unbranded"
"OPS", "Australia Optus branded"
"ORO", "Romania Orange branded"
"PHE", "Spain unbranded"
"PHN", "Netherlands unbranded"
"SER", "Russian Multi-CSC contains: CAC, CAU, SEK, SER, SKZ"
"SFR", "France SFR branded"
"SKC", "Korea unbranded"
"TCE", "Mexican Telcel branded"
"TEL", "Telstra branded"
"TEN", "Norway Telenor branded"
"TGY", "HongKong unbranded"
"THL", "Thailand Multi-CSC contains: CAM, GLB, MM1, MYM, SIN, SMA, STH, THL, XME, XSP, XTC, XTE, XXV"
"TMB", "USA T-Mobile Branded"
"TMS", "Slovak unbranded"
"TMZ", "Czech T-Mobile branded"
"TPA", "Panama Multi-CSC contains: ALE, ARO, BVO, CHO, COO, EON, PCW, TPA, TTT, UPO, UYO"
"TSI", "Ireland unbranded"
"TUR", "Turkey Multi-CSC contains: ACR, AFR, ECT, KSA, TUR, XFA"
"VAU", "Australia Vodafone branded"
"VD2", "Vodafone Multi-CSC contains: ATL, AVF, CNX, CYV, MOB, MTL, OMN, PRO, SIM, SWC, TCL, VD2, VDC, VDF, VDH, VDI, VGR, VIP, VOD, XFV"
"VDS", "Sweden unbranded"
"VIA", "Germany Multi-CSC contains: O2U, VIA, XEC"
"VVT", "Bulgaria unbranded"
"VZW", "USA Verizon branded"
"XAC", "Canada Multi-CSC (W8) contains: BMC, BWA, ESK, FMC, GLW, KDO, MTA, RWC, TLS, VMC, VTR, XAC"
"XAS", "USA Sprint Multi-CSC branded, contains: BST, SPR, VMU, XAS"
"XEF", "France Multi-CSC contains: BTU, CPW, DBT, ITV, KOR, NEE, XEF, XEO"
"XEO", "Poland Multi-CSC contains: BGL, CYO, MET, ORX, ROM, SEB, SEE, SIO, TOP, TWO, VIM, XEH, XEO"
"XID", "Indonesia unbranded"
"XSA", "Australia unbranded"
"XSG", "Arabic Emirate Multi-CSC contains: ACR, AFG, AFR, BTC, DKR, DRC, ECT, EGY, KSA, LYS, MAT, MID, MRT, MRU, MTZ, MWD, PAK, SMG, THR, TMC, TUN, TUR, WTL, XFA, XFE, XFM, XFU, XSG"
"ZTO", "Brazil unbranded"
1. Having a backup (just in case)
2. Download csc selection and put it onto your phone
3. Boot into twrp
4. Install the zip file
5. Reboot
As you all know, during the csc installation an EFS backup is made by
the installer. Most have no idea how to restore it, so here you go.
1. Boot into TWRP
2. Make sure EFS partition is mounted
3. Open terminal under advanced tab
4.
5. Wait until it's finished
6. Your previous EFS has been restored successfully