The firmware code is split into individual sections:
i8510 - > model designation (SGH-i8510).
XX - > region / network carrier designation (XX = open Market).
H - > release year (H = 2008).
H - > release month (H = August).
7 - > version number.
Region / language
BD = Cyprus, Greece
CP = Finland
DB = Vietnam
DC = Thailand
DD = India
DT = Australia
DX = Indonesia, Malaysia, Philippines, Singapore, Vietnam
DZ = Malaysia, Singapore
JA = South Africa
JC = Algeria, Morocco, Nigeria, South Africa, Tunisia
JP = Arabic
JR = Arabic
JV = Algeria, Egypt, Iran, Iraq, Kuwait, Morocco, Nigeria, Oman, Pakistan, Saudi Arabia,South Africa, Syria, Tunisia, Turkey
MT = Switzerland
XA = Austria, France, Germany, Italy, Netherlands, Switzerland, United Kingdom
XB = Denmark, Norway, Sweden
XC = Portugal, Spain
XD = Croatia, Czech, Hungary, Slovakia
XE = Bulgaria, Estonia, Kazakhstan, Latvia, Lithuania, Russia, Ukraine
XF = Bulgaria, Croatia, Romania
XX = Austria, Belgium, France, Germany, Hungary, Italy, Spain, United Kingdom
ZC = China, Hong Kong
ZH = Hong Kong
ZT = Taiwan
Network carrier codes:
AE = SFR, France
AI = Tim, Italy
AM = Vodafone
AN = E-Plus, Germany
AO = O2
AS = KPN, Netherland
AU = Mobilkom, Austria
BB = Tmn, Portugal
BF = Optimus, Portugal
BG = Telefonica, Spain
BM = Swisscom, Switzerland
BN = Amena, Spain
BO = T-Mobile, Germany
BU = Vodafone
BV = Orange, Switzerland
BW = O2, United Kingdom
CD = Proximus, Belgium
CG = Telia Mobitel, Sweden
CH = SingTel, Singapore
CK = Tele2 Comviq, Sweden
CT = Tdc, Denmark
CU = One, Austria
CV = Telenor, Norway
DT = Optus, Australia
DV = Telstra, Australia
EF = Celcom, Malaysia
JB = Vodacom, South Africa
MD = Telia Sonera, Finland
MJ = Vodafone, Italy
MM = Tele Ring, Austria
MV = NetCom, Norway
NA = Nrj, France
NB = Tele2 Norway, Norway
NE = H3g Nordic, Sweden
NP = H3g, Italy
SS = Vodafone, Japan
Release years:
D = 2004
E = 2005
F = 2006
G = 2007
H = 2008
Release months:
A = January
B = February
C = March
D = April
E = May
F = June
G = July
H = August
I = September
J = October
K = November
L = December