Hi,

i had encountered the exact same symptoms back in the dark eras of FW 1.1.2 ~ 1.1.4 on a fellow Forummer's iPhone (1st Gen aka 2G).
Problem highly suspected to be a hardware glitch. Tough luck for him.

Also back in some old iPhone threads ... (mebbe v2 or v3 era, now is v8 already ) some other forummer's iPhone also had the same problem but he was brave enough to open the back cover and the problem was traced to a bad physical connection of the internal antenna. The antenna looks like a ribbon cable. So i think , and if i remember it, the solution was to resolder the ribbon cable , or was it to pad the insides of the aluminium casing with some sponge to have a firm contact for the antenna to the logic board.



In your case, the only thing within your control (without having to pry open your beloved iPhone) is to fully restore again, do the quickpwn again and see if the problem goes away.
Pray that its a software issue and not hardware. Best of luck !

here's a cool trick to make sure your iPhone doesnt latch onto EDGE or UTMS/HSDPA that incurs all those Telco data charges...


Irrespective of whether u wanna use bossprefs or SBprefs etc etc etc... try putting some garbage APN settings instead. Set it manually via the usual methods (settings -> general -> network .... u get the idea) .




And unless u have added nicely the carrier specific config plist files and the symlinks of the MCC/MNC, the iPhone will just use those garbage settings, and it will not be able to connect EDGE/UMTS/HSDPA.

There, problem solved !



BTW, this works not just for iPhones, but just about any handphone as well. If u dun want it to go on cellular data, just purposely mess up the APN settings and its all cool.

---

Added on April 23, 2009, 12:39 amalso to add on, U-mobile doesnt have full 3G coverage nationwide. Their 3G coverage is somewhat limited to dense areas of Klang valley only. Outside of it, U-Mobile users are actually latched on Celcom network , and it is an industry known fact that Celcom does not open its UMTS (aka 3G) network to U-Mob users .. but they will "intra-roam" on the GSM frequencies instead.


Bottom line: its not the iPhone-3G's fault.



This post has been edited by mugenfoo: Apr 23 2009, 12:39 AM