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6680: No signal if i change the SIM to other networks though this is open line! HELP!

5 replies · 6,838 views · Started 10 January 2006

Hi, I bought an open line 6680 phone that enabled me to change my simcard on the following philippine network:

Sun
Globe
Smart

Before I was frequently switching between Globe and Smart, but for 1 month i stayed to Sun. Until yesterday, I decided to switch to Globe and Smart again but surprisingly the phone can't receive any signal from the two networks. Only to the Sun network.

There is no "SIM REJECTED" or something message.. It's weird.

Can anyone help me? It seems the Sun network sim locked my phone over the air? Any Suncellular representative?

Could this be a hi-jack?

I reformatted the phone by pressing *#7370# but it is still the same.

Any help pls.. thanks 😞

There seems to be some kind of sim lock in place or the sim you are using is damaged.

i am having the same problem too!!!
am using 6680, after my area was hit by typhoon it started to have a signal problem on the networks globe and smart. i inserted different sim but still no signal, but the sim is working fine in another phone. i noticed there are area that displays full signal, but when i dial ### and call, it says no network coverage, but sometimes it can do outgoing and incoming call/messages when the signal is on its full strength. i already called the networks, and they had said they already fixed their relay towers that had been damaged by the typhoon. until now the problem exist though i already upgraded my firmware ti version 5. whot is the problem of my phone? i hope someone could figure this out.

i am having the same problem too!!!
am using 6680, after my area was hit by typhoon it started to have a signal problem on the networks globe and smart. i inserted different sim but still no signal, but the sim is working fine in another phone. i noticed there are area that displays full signal, but when i dial ### and call, it says no network coverage, but sometimes it can do outgoing and incoming call/messages when the signal is on its full strength. i already called the networks, and they had said they already fixed their relay towers that had been damaged by the typhoon. until now the problem exist though i already upgraded my firmware ti version 5. whot is the problem of my phone? i hope someone could figure this out.

i am having the same problem too!!!
am using 6680, after my area was hit by typhoon it started to have a signal problem on the networks globe and smart. i inserted different sim but still no signal, but the sim is working fine in another phone. i noticed there are area that displays full signal, but when i dial ### and call, it says no network coverage, but sometimes it can do outgoing and incoming call/messages when the signal is on its full strength. i already called the networks, and they had said they already fixed their relay towers that had been damaged by the typhoon. until now the problem exist though i already upgraded my firmware ti version 5. whot is the problem of my phone? i hope someone could figure this out.

i am having the same problem too!!!
am using 6680, after my area was hit by typhoon it started to have a signal problem on the networks globe and smart. i inserted different sim but still no signal, but the sim is working fine in another phone. i noticed there are area that displays full signal, but when i dial ### and call, it says no network coverage, but sometimes it can do outgoing and incoming call/messages when the signal is on its full strength. i already called the networks, and they had said they already fixed their relay towers that had been damaged by the typhoon. until now the problem exist though i already upgraded my firmware ti version 5. whot is the problem of my phone? i hope someone could figure this out.