I have a Samsung Captivate from ATT with Froyo (Android 2.2). I am using a T-Mobile prepay Sim Card with the phone (no 3G/data plan). I have rooted and unlocked the phone, and initially (for several days) the phone worked perfectly without problems.
I took a trip from the US to Vancouver, and while in Vancouver, I texted back and forth a few times to the US and made one phone call (Rogers Network) without problems, using data roaming. When I returned to the US, my problem began. I can still text without problems, but when I make a phone call, my reception consists of mostly or all static through the earpiece, speakerphone or earphones. The person on the other end can hear me perfectly, but I receive static. I also receive static when I dial up voice mail. My earpiece and earphones work OK with music and voice recordings.
There have been a couple of occasions where the static went away and I do not know the reasons for this (the static later returned). Other than the static, I have no other apparent problems with the phone.
I have tried a factory reset and that did not correct the problem. I also installed the simcard from my husband's iphone, and the problem was the same (static on reception). I was wondering what else I could try to correct the problem. Should I reinstall Froyo? How would I do that with a rooted and unlocked phone?
I've had a strange long-term issue where the phone will ring for the party calling in, but won't ring on my end. No missed call shows up. It occurs about half the time with or without WiFi calling on. This issue has plagued me since my Verizon Note 4 with Verizon service, my T-Mobile Note 4 with T-Mobile, and is still occurring on my T-Mobile Note 5.
The only way I know I've missed calls is that I use YouMail's email notification service which lets me know that someone got to my YouMail voicemail even if they don't leave a message.
I thought it had to do with my poor (1-2 bar) service in my rural area but I've had WiFi calling on my past two devices, WiFi always on, and it still happens frequently. For example, I got three calls from my girlfriend while I was home today. Full WiFi signal strength the whole time. Her first call came through fine but the following two I never received any missed call for. The only reason I know she called was because of the email notification I received from my YouMail voicemail service. I have a new SIM card through T-Mobile so I know it's not that as it previously happened with my Verizon SIM and Note 4 while on their network.
Very frustrating. Any idea what is going on?
I can say that T-mobile wifi calling is not stable. It got so bad I had to turn it off and just deal with poor signal.
Hi all, I recently sent my S7 (bought from ebay) to have the LCD replaced. It was working fine before I dropped it but the repair told me they were having issues with the mic that wasn't working so when they checked the IMEI, it came back as blacklisted. They couldn't get any signal and the way they explained it to me was that it was useless as a call making/receiving phone and could only use it on wifi.
I received the phone yesterday and I put my SIM card; not only did I have reception, I had a working 4G signal, could access the internet and was able to receive calls from my colleagues. Only problem was they couldn't hear me and I could only hear them on speakerphone, not through the external speaker at the top.
At home, I tried the Skype bot that lets you set up the mic and all and that was working, again only when I had it on speakerphone. Same on Google, when I say Ok Google the assistant comes up and I can 'voice search' just fine. I can also make calls fine.
So I'm confused. I thought blacklisted means you get no signal, you can't make any calls etc but can a blacklist status disable the speaker/mic when on calls? The repair was about replacing the cracked LCD, could the new screen affect/disable the mic since the phone is not a European model (I got it from a now banned from ebay seller from Hong Kong)? And finally, should I be trying to un-blacklist the phone or fix the mic and the speaker?
UPDATE: I just checked the model number and it's the SM-G930T. The LCD I just replaced is G930F. Could that have anything to do with the speaker not working?
Any ideas/recommendations are more than welcome. Many thanks in advance.
Am I the only one out there experiencing severe call quality issues? My phone (T-Mobile OnePlus 7 Pro) is suffering from severe call quality issues.
I seem to be having the issue with the following configurations in an attempt to narrow down / in on the issue:
Galaxy Buds (BT Headset) = Calls on Wifi Calling, Regular LTE and WhatsApp calls. Broken audio (stuttering)
Direct Phone microphone (on handset) = Calls on Wifi Calling, Regular LTE and WhatsApp calls. Broken audio (stuttering) / Drop-outs
Purchased USB-C to 3.5 mm adapter to wired headset = Severe Echo on Wifi Calling, Regular LTE and WhatsApp.
I've tried driving into range of another tower and experience these same problems. I picked up my daughter's iphone X and on the same towers and wifi network, these problems don't exist. The call quality is pristine.
On my Note 8/9 (can't remember what the current one is, but I own it), the problems don't exist in these same configurations. The problem is clearly local to the OnePlus 7 Pro. I've done the "clear cache, reset networking, reset wifi" solutions and they don't seem to help. At this point, I'm wondering if it's a bad phone or just bad software.
I'm at my wit's end and pretty much feeling buyer's regret right now, because I so wanted to love this phone, but it's caused me more heartache than ever. Obviously, the phone is up to date on the most recent version of T-Mobile firmware, but I can't possibly imagine a phone could be so bad at doing what a phone does and pass the certification lab for the carrier and get the amazing reviews that exist on the web.
I'm a few minutes away from just going back out to the store and buying a new Galaxy S(whatever is the most recent)+
**frustrated** and **confused**
Lol..
Incredible cell reception and call quality here, on international stock, the weird part for me is it sounds worse on VoLTE and Wifi calling. Regular voice calls are outstanding.
But if you have both of those disabled and the call quality is that bad, I would exchange/return it.
Sent from my GM1915 using Tapatalk
percykwong said:
Am I the only one out there experiencing severe call quality issues? My phone (T-Mobile OnePlus 7 Pro) is suffering from severe call quality issues.
I seem to be having the issue with the following configurations in an attempt to narrow down / in on the issue:
Galaxy Buds (BT Headset) = Calls on Wifi Calling, Regular LTE and WhatsApp calls. Broken audio (stuttering)
Direct Phone microphone (on handset) = Calls on Wifi Calling, Regular LTE and WhatsApp calls. Broken audio (stuttering) / Drop-outs
Purchased USB-C to 3.5 mm adapter to wired headset = Severe Echo on Wifi Calling, Regular LTE and WhatsApp.
I've tried driving into range of another tower and experience these same problems. I picked up my daughter's iphone X and on the same towers and wifi network, these problems don't exist. The call quality is pristine.
On my Note 8/9 (can't remember what the current one is, but I own it), the problems don't exist in these same configurations. The problem is clearly local to the OnePlus 7 Pro. I've done the "clear cache, reset networking, reset wifi" solutions and they don't seem to help. At this point, I'm wondering if it's a bad phone or just bad software.
I'm at my wit's end and pretty much feeling buyer's regret right now, because I so wanted to love this phone, but it's caused me more heartache than ever. Obviously, the phone is up to date on the most recent version of T-Mobile firmware, but I can't possibly imagine a phone could be so bad at doing what a phone does and pass the certification lab for the carrier and get the amazing reviews that exist on the web.
I'm a few minutes away from just going back out to the store and buying a new Galaxy S(whatever is the most recent)+
**frustrated** and **confused**
Lol..
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Call quality is excellent for me as is reception. TMO on TMO Rom. My only issue is DUO freezes the person on the other end for me. Its only been to the same person so far but that is my only issue
You have done soft reset, but try to do a hard reset(erase everything instead of clearing cache). That helped with some crackling noise but.
Call quality not even in the same ball park as my tmobile note 9.
I also had issues with my OP 7 pro. Specifically on speakerphone wife could not hear me at all. I was on the international variant + T-Mobile. I ended up sending it back. Bought the OP 7 and have the exact same issues. I sold me OP 6T tp upgrade to the 7 series. I ended up finding a used OP6T in offerup. Popped the SIM card in. No call quality issues and people can hear me just fine when in speaker phone and driving. I usually have my phone placed in the center console in my car. So for me this is the primary way to talk. It sad that the OP 7 series has these issues. I was really hoping they would fix this in a software update. Still handing on to the OP 7 praying for a fix. But I may just end up selling it on swappa.
Have you guys tried to get a replacement? I don't have any problem with call quality. I use Bluetooth headset or reg phone on ear way most of the time, and rarely on speaker.
I had that problem on the T-Mobile variant and when I converted it to the international firmware it doesn't have that problem now
My call quality is really good sometimes. Some times, it'll have weird moments where I get muted or the other person does. Speaker phone mic sucks real bad though. I hate using speaker phone if I need both hands to do something, so I ordered a bluetooth headset.
Apocalypse487 said:
My call quality is really good sometimes. Some times, it'll have weird moments where I get muted or the other person does. Speaker phone mic sucks real bad though. I hate using speaker phone if I need both hands to do something, so I ordered a bluetooth headset.
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Click to collapse
I primarily use the speakerphone for calls so this is kind of a show stopper for me. Desperately looking for a fix. Might have to sell mine on swappa.
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atn0716 said:
Have you guys tried to get a replacement? I don't have any problem with call quality. I use Bluetooth headset or reg phone on ear way most of the time, and rarely on speaker.
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Click to collapse
That's probably why you aren't experiencing the issues we are seeing. Its mainly on the speakerphone. I am currently using a op 6t until I can find a fix. I don't have any issues on the 6t.
A family member is trading in an unlocked flip 3 for an unlocked flip 4, the flip 4 arrived on the 23rd. I popped in the sim card from the 3 and rebooted and could not receive calls. I placed a call from the phone and it worked, then I called it again and the call went through just fine, so I am thinking that it registered on the network and all is OK. A few hours later I called the 4 again, and the call did not go through... This is still happening today (the 28th) if I reboot the phone it works (for a few hours). I took the sim out of the 4 and put it back in the 3 and it works just fine. So, I don't know if the problem exists with the phone or with T-Mobile. It is on a pre paid TMO connect plan, so getting someone to look at this might be difficult as pre paid seems to be looked down upon with TMO.
EDIT: I just tried calling the old phone (flip 3) and again the call did not go through, but it did receive a text, and then I was able to call it....Sim card?
larryk said:
EDIT: I just tried calling the old phone (flip 3) and again the call did not go through, but it did receive a text, and then I was able to call it....Sim card?
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Click to collapse
I'd say call the cell provider, they might have to reset something - I had similar problem in the past and it was easily fixed.
^This^ and try a network reset, clear SIM toolkit data.
Replace sim card if these don't work; handle the sim card like a stick of ram. They can be damaged by ESD. While they are dirt cheap, a partial failure can be a pain to chase down. Any failure can leave you with no service. ESD damage may show up immediately or days, months even years latter. Almost all sim card failures are due to ESD. Most techs mishandle them; use ESD handling protocols.