Question Regarding IMEI Utility - GSM-Forum

nipsip · 12-19-2013, 15:46

I have been told by a source in China that a lot of the Chinese made phones are quadband GSM + tri-band WCDMA version (4+3 modem) and even the Chinese phones that don't list the 850/1900 bands in the WCDMA are capable of doing it and there is an IMEI utility out there that can modify the modem so the 850/1900 bands work.

Any feedback from anyone on this topic?

nipsip · 12-19-2013, 20:41

I know T-Mobile is moving 3G/HSPA+ service off its 1700 MHz band and onto 1900MHz to make room for 4G LTE on the 1700 MHZ and 2100MHZ band. Most China phones support
3G Network HSDPA 850/ 2100
4G Network LTE 800/1800/2600
or some variation but not 1900 or 1700 on either 3G or 4G.
Wondering if an IMEI utility can modify the phone so 1700 and 1900 are included in at least 3G

12-19-2013, 15:46	#1 (permalink)
nipsip Junior Member Join Date: Dec 2013 Posts: 2 Member: 2088084 Status: Offline Thanks Meter: 0	Question Regarding IMEI Utility I have been told by a source in China that a lot of the Chinese made phones are quadband GSM + tri-band WCDMA version (4+3 modem) and even the Chinese phones that don't list the 850/1900 bands in the WCDMA are capable of doing it and there is an IMEI utility out there that can modify the modem so the 850/1900 bands work. Any feedback from anyone on this topic?

12-19-2013, 20:41	#2 (permalink)
nipsip Junior Member Join Date: Dec 2013 Posts: 2 Member: 2088084 Status: Offline Thanks Meter: 0	I know T-Mobile is moving 3G/HSPA+ service off its 1700 MHz band and onto 1900MHz to make room for 4G LTE on the 1700 MHZ and 2100MHZ band. Most China phones support 3G Network HSDPA 850/ 2100 4G Network LTE 800/1800/2600 or some variation but not 1900 or 1700 on either 3G or 4G. Wondering if an IMEI utility can modify the phone so 1700 and 1900 are included in at least 3G