No Service on an Unlocked 8700g - BlackBerryForums.com : Your Number One BlackBerry Community

wakedreams · **No Service on an Unlocked 8700g -** 08-21-2007, 04:22 PM

I recently had a T-Mobile 8700g unlocked, however when I put my Cinguler (Now AT&T) SIM Card in and Turn the Wirless On...I get "No Service" after 3-5 minutes of Searching for Network.

Any pointers? I have Wiped the Device and that did not work.

WD

John Clark · **OS:** 4.5.0.102

"No Service" means it's not receiving any signal from any network. Either there is no service in your area or there is something wrong with the device.

wakedreams · 08-21-2007, 04:38 PM

John,

Thanks for the quick response, I understand that the device is getting no signal from the network.

I guess I should have clarified that I am wondering if there are any network settings or device configurations that need to be changed after I performed the SIM unlock to recognize another carriers network.

WD

John Clark · **OS:** 4.5.0.102

No, it should work fine after being unlocked. If it was still locked it would say "invalid sim card." I'm guessing there is a hardware issue with the device.

JSanders · 08-21-2007, 04:40 PM

No. What you did was unlock the BB. Any GSM carrier SIM will (should) work in it now.

wakedreams · 08-21-2007, 05:08 PM

I have tried 2 seperate Cingular SIM cards and neither are recognized, going to track down a T-Mo SIM to see what happens if I put it in the BB.

JSanders · 08-21-2007, 05:09 PM

Where did you buy the "unlocked" BB and did you unlock it , or did the seller "say" it was unlocked.
How do I determine if my BlackBerry is "unlocked"? - BlackBerryFAQ

jeremyckitching · **OS:** 4.6.0.174

When I had my BlackBerry unlocked (T-Mobile sent me the unlock code), in the instructions (which I failed read all the way through) it said to turn off the wireless radio while performing the steps or the device may be damaged. I did NOT do that step and mine is still working, but I don't know if that has ever damaged a device before.

wakedreams · 08-21-2007, 06:13 PM

I had TMo send me the unlock code and instructions. I had the wireless option turned off as the instructions said.

New Issue: A T-Mo SIM Card will not work either. How can I get an older version of the Handheld Software?? The only thing that has changed since the device worked is I upgraded the Device Software to Version 4.2.1.91

WD

John Clark · **OS:** 4.5.0.102

It sounds like a hardware (device) problem. I doubt an OS change is going to fix it. Here is a list of all the carriers and their OS's.

BlackBerry Operating System Downloads - BlackBerryFAQ