IMO, new customer will get a new range of SIM cards' IMSI eg 5021612345xxxxx
and they only put this range of IMSI number to their latest network equipment (watever it is) which (of coz) is higher capacity of DL UL
I know this becoz xxxxs also doing this for iphone 5 customers ONLY
yeap, download speed now can reach 10mbps if you can, i am old customer but i manage to get the speed also (but limited time)
BTW, can you ask your fren to test again the speed whether the upload is 3xxkbps or 1.xmbps
if it is 3xxkbps, then sorry ur fren still using HSDPA
if it is 1.xmbps, then DiGi HSPA+ network coming SOON
my smart plan 88 speed...


Is that mean we could enjoy the high speed if we go Digi centre request for SIM change?