No signal/bad reception

**mbuXx** · 08-14-2010, 07:52 AM

I have to 9700 and usually have really good signal. The last couple days i have noticed that my signal is horrible, and a lot of times the phone goes into sos? does anyone know what could be causing this all of the sudden?

**maxiang** · 08-14-2010, 08:02 AM

If you usually have a good signal, its probably a temporary carrier problem. Call them and report it, they might credit your account.

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**mbuXx** · 08-14-2010, 08:33 AM

i recently put new housing on the phones, is there any chance this has anything to do with it? could i have damaged antennas? also does anyone know where the antenna's are located?

**kcarter3** · 08-14-2010, 08:33 AM

i have been getting it also. a lot!

**maxiang** · 08-14-2010, 08:35 AM

Eww, that could do it if you aren't careful

Antenna is at the bottom of the board...

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**mbuXx** · 08-14-2010, 08:44 AM

uh oh

can you be more specific just cuz i wanna see exactly where itis :/ i only replaced bezel and battery cover...but the phone goes in sos and tech support tells me this is a sim card issue?

**Dinadiva** · 08-14-2010, 08:48 AM

it is possible if your 9700 need Upgrade OS...?

**mbuXx** · 08-14-2010, 08:53 AM

i dunno im runnin .743 i was going to upgrade tonight but .743 isnt that old thati should be loosing signal is it?

**lycafe** · 08-14-2010, 09:05 AM

Is your new battery cover made out of plastic? I read that if your battery cover is made out of steel/metallic of some sort, then you will have a very poor reception.

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**mbuXx** · 08-14-2010, 10:00 AM

yeah its plastic, when i takeit offand take everythig off still very bad reception. does anyone know if sos is a sim card isue?

**Rootbrian** · 08-14-2010, 10:18 AM

Originally Posted by mbuXx

yeah its plastic, when i takeit offand take everythig off still very bad reception. does anyone know if sos is a sim card isue?

Try and replace the sim card, but for one, bring it into the carrier store and have them take a look at it.

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**alloutz** · 08-14-2010, 09:35 PM

I've been having the same problem, like I'll have full EDGE, while my girl and her iphone4 has full 3G!!! and I can't get 3G, while she has FULL 3G , I'll just be in EDGE, really pisses me off! and i'm in Philly too

**david1224** · 09-06-2010, 04:03 AM

i am having the same issue as well , couple days ago i was trying to change the battary cover and part of the housing , now my fone signal s bad , sometimes it has full reception but sometimes it just keep losing it and not stop going to edge and finally it lost all the signal, could anyone please help?

and i did changed with a new sim card already

Matrix Leader · 09-06-2010, 04:13 AM

743's signal is not that good......

I advice you to install 680 or 741......they have the best signal reception in my experience.....

I installed 862 but that OS kept dropping calls on me every few mins

**dictoresno** · 09-06-2010, 04:30 AM

Originally Posted by mbuXx

I have to 9700 and usually have really good signal. The last couple days i have noticed that my signal is horrible, and a lot of times the phone goes into sos? does anyone know what could be causing this all of the sudden?

this is most likely caused my a network issue. i would contact the carrier and inquire if there are known network problems in your area. at least before trying to reload an OS or get a new SIM card.

**pnr2020** · 09-06-2010, 07:01 AM

If you do a google search there are loads of people who have had signal problems after changing there housing

**david1224** · 09-06-2010, 05:09 PM

Originally Posted by pnr2020

If you do a google search there are loads of people who have had signal problems after changing there housing

but is it fixable ?

**BoldtotheMax** · 09-07-2010, 02:43 PM

Might just be working on a tower to update it or fix something....or could be related to the bezel and what not that you replaced, which I have heard causes problems...I would call first and see what your carrier says first and if no headway is made that way, try taking back off those aftermarket pieces and putting it back to stock to see if that helps...also don't take it in to a carrier as switching stuff like that IIRC voids the warranty.

Good luck

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**david1224** · 09-07-2010, 10:51 PM

I had the same problem 4 days ago... and i went to some phone repair shop and they replacement a New OEM antenna for me and now it works perfect !

**spiderpopz** · 09-08-2010, 08:31 PM

Ive had this problem for awhile now, as well as my phone constantly freezing. when I called about a month ago they said they are testing out 4g in some areas[just so happens my area was on of them] as well as fixing a few towers. Since then, my phone still has little to no service at all..in a place that had it all the time.

I was on the phone yesturday when out of no where my phone shut off during conversation, that promted me to go into the repair store to get it checked out.
They ran a test and told me things were fine, BUT the test showed that the ANTENNA was OUT OF DATE. so with that they ordered a replacement phone, which im picking up otmorrow. they said it was out of date, because the towers in my area have been upgraded and no longer capable with my current antenna.

If I were you Id take it in, and mention to them to test the Antenna.

**dictoresno** · 09-08-2010, 10:08 PM

Originally Posted by spiderpopz

Ive had this problem for awhile now, as well as my phone constantly freezing. when I called about a month ago they said they are testing out 4g in some areas[just so happens my area was on of them] as well as fixing a few towers. Since then, my phone still has little to no service at all..in a place that had it all the time.

I was on the phone yesturday when out of no where my phone shut off during conversation, that promted me to go into the repair store to get it checked out.
They ran a test and told me things were fine, BUT the test showed that the ANTENNA was OUT OF DATE. so with that they ordered a replacement phone, which im picking up otmorrow. they said it was out of date, because the towers in my area have been upgraded and no longer capable with my current antenna.

If I were you Id take it in, and mention to them to test the Antenna.

lol what? what phone and what network is this?

**VentureForth** · 09-14-2010, 12:40 PM

From the "other" Blackberry Forum, I learned that you must ensure that the bottom two screws are TIGHTLY holding the midcase to the bezel. Remove the back battery cover, and see if you can squeeze the midcase and bezel and if there is any play. While you're doing that, see if your signal improves.

Good luck!

**WolfmanRobby** · 09-14-2010, 01:21 PM

OK, after reading through the posts I see a few possible things it could be.

SOS usually means that there is signal, but there is a problem validating your phone to the network. So, you can only make Emergency (SOS) calls. The SIM card is what links your phone to your account. Think of it as it's ID card for the network.

If you are out of your providers coverage area, and do not have roaming. You will get an SOS.

If you are in your providers coverage area and get an SOS, it means your service (Account) can't be validated.

Here's what the possibilities are:
-The SIM card is loose in the slot. This is the most common cause of intermittent SOS errors. When you put the phone back together, you may not have got it in there right, or where it's just barely making contact. Try taking it out, make sure none of the PINS it connects to on the phone are bent and put it back in.

-A bad SIM card. If the SIM is bad, you usually get a constant SOS. But, if it's going bad, it can be intermittent. This is a 5 min, FREE replacement at your wireless store. Just go in, have them replace your SIM and see if that fixes it.

-A bad SIM slot on the phone. OK, this is how my 9000 died. I had several SIM cards go bad in a row, then it would not take any SIM card. Since you just took the phone apart to change out the bezel, it's possible you didn't get something back together right. You may have even damaged it beyond repair (If it's shorting something out)>

-A bad or lose antenna. This is RARE for the SOS. Because, SOS means it's talking to the network but can't validate the account and you can only make emergency calls. When the SOS is showing, try calling your Carriers support # from the phone (For AT&T that's 611, I think most carriers use that). If you connect, the antenna is fine.

-A problem with the towers in your area not validating your phone to the network. Again, this is rare, but happens and can only be resolved with a call to your carrier.

**mawil1013** · 09-14-2010, 07:37 PM

Originally Posted by mbuXx

I have to 9700 and usually have really good signal. The last couple days i have noticed that my signal is horrible, and a lot of times the phone goes into sos? does anyone know what could be causing this all of the sudden?

Open SetUp folder, open Manage Connections/Pulse Icon, scroll down to Mobile Network Options and open,

make sure Data Services is ON, While Roaming ON, Connection Preference to Mobile Net Work Preferred, Network Selection Mode set to Automatic,

if you change it to Manual you can find local towers and see which is strongest.