NOTE: I have searched everywhere for a solution, but all I can find are solutions to intermittent "call failed" issues. This is NOT the same.
BACKGROUND: I recently bought an iphone 4 (on eB**, perhaps that's my problem =/). The phone was listed as "locked to Vodafone". I received the phone, inserted my vodafone microSIM and the phone activated with iTunes. I restored the backup from my 3GS. The phone searched for a network, found "Vodafone UK", and I began receiving emails and using the data connection straightaway... everything seemed to be fine.
PROBLEM: The phone will not make or receive ANY phone calls to ANY number (even 191, the Vodafone helpline). The phone instantly shows the "call failed" dialogue each time I attempt to place a call. This problem is NOT intermittent. Unsurprisingly, the phone will also not send or receive text messages. The data connection, however, works fine. The phone shows a signal from "Vodafone UK", but the signal has no bars, just "_ _ _ _" next to the carrier name.
WHAT I'VE TRIED:
--Hard reset - no change
--Reset Network Settings - no change
--Turn off 3G - no change
--Turn off Cellular Data - as soon as I turn Cellular Data off, the phone says "No Signal" and will not reacquire a signal until I turn Cellular Data back on. This happens whether 3G is on or off.
--All of the above with and without WiFi - no change
--Inserted microSIM into old 3GS (with an improvised adapter) - everything worked as normal, that is, nothing is wrong with the SIM card itself.
--Changed various other settings to no avail... toggled "Show Caller ID", "Set Time Automatically", "Location Services" on and off... nothing.
RELEVANT INFO:
--iOS 5.1 (9B176)
--Carrier listed in "Settings->General->About" as "vodafone UK 12.0"
--BB 04.12.01
Please help. I realize this might be a hardware problem, but I find it strange that the data would function if the radio were damaged.
Thanks!
BACKGROUND: I recently bought an iphone 4 (on eB**, perhaps that's my problem =/). The phone was listed as "locked to Vodafone". I received the phone, inserted my vodafone microSIM and the phone activated with iTunes. I restored the backup from my 3GS. The phone searched for a network, found "Vodafone UK", and I began receiving emails and using the data connection straightaway... everything seemed to be fine.
PROBLEM: The phone will not make or receive ANY phone calls to ANY number (even 191, the Vodafone helpline). The phone instantly shows the "call failed" dialogue each time I attempt to place a call. This problem is NOT intermittent. Unsurprisingly, the phone will also not send or receive text messages. The data connection, however, works fine. The phone shows a signal from "Vodafone UK", but the signal has no bars, just "_ _ _ _" next to the carrier name.
WHAT I'VE TRIED:
--Hard reset - no change
--Reset Network Settings - no change
--Turn off 3G - no change
--Turn off Cellular Data - as soon as I turn Cellular Data off, the phone says "No Signal" and will not reacquire a signal until I turn Cellular Data back on. This happens whether 3G is on or off.
--All of the above with and without WiFi - no change
--Inserted microSIM into old 3GS (with an improvised adapter) - everything worked as normal, that is, nothing is wrong with the SIM card itself.
--Changed various other settings to no avail... toggled "Show Caller ID", "Set Time Automatically", "Location Services" on and off... nothing.
RELEVANT INFO:
--iOS 5.1 (9B176)
--Carrier listed in "Settings->General->About" as "vodafone UK 12.0"
--BB 04.12.01
Please help. I realize this might be a hardware problem, but I find it strange that the data would function if the radio were damaged.
Thanks!