I recently got my I9300 and am on T-Mobile US and knew i wouldn't be getting H/H+, but been reading a lot and found a few ways to help with that, but of course it all depends on location.
Go to dialer, type "*#*#4636#*#*, and click Phone Information, then go down to 'Preferred Network Type' and select GSM/CDMA. Close app.
Go to dialer, type "*#*#301279*#*#" and select: Change Revision then select [3] RELEASE (6) HSDPA/HSUPA, then select HSDPA ON, HSUPA ON.
I have been getting H/H+ in more locations and hope this helps others. But at the end of the day, it is still dependent on location.
Sent from my GT-I9300 using xda premium
Go to dialer, type "*#*#4636#*#*, and click Phone Information, then go down to 'Preferred Network Type' and select GSM/CDMA. Close app.
Go to dialer, type "*#*#301279*#*#" and select: Change Revision then select [3] RELEASE (6) HSDPA/HSUPA, then select HSDPA ON, HSUPA ON.
I have been getting H/H+ in more locations and hope this helps others. But at the end of the day, it is still dependent on location.
Sent from my GT-I9300 using xda premium