So, my phone can't make calls and I've tried everything I was able to find online to force it to do so. I took my sim card from my moto x and put it in you'd nexus 5x, but when I try to make a call it immediately hangs up. I've gotten a new SIM card and gone to multiple Verizon stores to fix it, to no avail. Lastly, I heard that I could make calls inever i enabled advanced/hd calling so that i could use data for the call. Whenever i go into testing settings to make the VoLte work and reboot, it seems to not keep the setting. I'm lost, and I just want to make calls. Any help?
In the past (16 years ago, in times of Siemens S55) there was a way to enable a second line on the mobile phone. I think it was something like pressing 0 for a few seconds to switch between the lines.
When activated without access to a second line, you were not able to make any phone call. Not sure if this function is still available at actual smartphones. Only a hint where you can search for.
Or, another hint, you've activated the call restriction (not sure if this is the correct translation from German). In the options of the phone you're able to block some or all numbers for outgoing calls.
Try to check in test menu (*#*#4636#*#*)if the phone is on LTE-only mode and put it on LTE/CDMA/UMTS
Sent from my Nexus 5X using Tapatalk
My H798 came across bootloop, after a fix from Huaqiangbei, Shenzhen, was sent to me today. The phone runs into a similar issue. Data and SMS work well, while any call will be held on "Calling…" for 30 seconds, with no sound, then end up with a beep of hanging up.
But my mobile carrier is China Mobile.
Same thing here, replaced with chinese motherboard and now no calls, but sms and data works fine.
It seems that there are different SMC for 4g and 2/3G, so it seems that there is a hardware fault on the 3g/2g chip.
Gonna try to gunheat it.
Related
Hi, I recently started having trouble with my gf's phone (Nexus 4 running lollipop 5.0, lte enabled, tmo). It started shortly after I enabled a SIM lock pin on the sim, but not sure if that's the cause or not... The phone started to intermittently drop signal, and would not make calls (it would just appear to be dialing, but you'd hear no ringing and never connect). When I'd restart the phone, I could usually make a call. I tried to fix it by restoring everything the stock image, rechecking the apn, making sure stock radio was installed, etc, but the problem persisted and eventually got to the point that voice calls did not work at all. LTE and data worked to get onto the internet, but once a call was attempted to be made, it'd lose all signal. I discovered eventually that if I switched off lte/4g/3g, and only kept gsm 2g on, I could make a voice call. Next I tried her SIM card in my phone (Note 2 on Android 4.4, t-mobile) and as soon as I put her sim in, my phone started doing the same thing. After switching back to my SIM (that was working just fine, before), now MY phone is stuck with the same problem! (Can only make calls with just 2g enabled). I'm at a total loss. Has anyone experienced anything similar, or do you have possible solutions/ideas on how to fix this?
Solved
For anyone who may be having the same problem, here is how I solved it. I picked up a new sim card from t-mobile, flashed a stock rom via odin (with the sim card not installed), loaded rom, and installed sim, loaded correct apn. Everything works as it should now.
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What Brand was her SIM?
I have the Verizon LG G3 variant and as of the last month my calls have been very intermittent. Text and Data (LTE) all work perfectly but I can not make calls nor receive them, though it will work randomly at times. I'm running JazmineROM 7 and have tried reflashing, going to stock, and other roms. Its interesting to note that I sent this phone in a while back to LG and have used it fine for a while, but when I noticed the call problem I visited my Verizon store and it appeared in their system as a non-Verizon phone, however they have since added this phones IMEI to their system and it appears normally as a vs985. I tried replacing the SIM card, which sort of fixed it because before this sending or receiving an mms would cause calls and texts to not work but now texts work fine. Another interesting thing is that my 1x is always 1 bar as you can see in the attatchment provided. Any help would be appreciated, thanks.
Can not make or receive calls from Mexico and unfortunately my the official solution is to use ... the Galaxy S7 not even the S8 the S7
Unless I can find a way to make my Phone work I will have to try the Galaxy S7
What happens when somebody tries to call me most of the time they get voice mail.
When I try and call out most to the time after a few minutes the phone says Call Failed.
Now I have the RSSI at max on the phone do not think the connection is weak.
The phone always receives data emails and messages.
In Mexico the carrier is Telcel
I talked to my company and Rogers "Canadian" they both say I have the right plan and like I said calls to happen say one out of ten tries.
I tried all sorts of things to get voice calls to work every time
Went into service mode manually selected bands "some where it said try Japan my phone does not have the choice"
Tried to disable 4G
Tried to find another network but Telcel is the only choice I have.
Please somebody give me something to try ?
I do not want to use the Galaxy S7
Lose unlimited photo storage
One of the best cameras I tried
Older and slower device
Lose Android updates
Lose Google Assist
Go from 128Gig to 32Gig is painful (mind you I can use a microSD card)
Gain Samsung bloat
But the solution given if I can not find a solution is to use this device.
I really half suspect if I do go with the Galaxy S7 I will not get any improvements.
What can I try to get voice calls work in Mexico ?
Probably a dumb question but did you enable roaming?
From the home screen, swipe down the Status bar.
Tap the Settings icon.
Tap More.
Tap Cellular networks.
Tap System select.
To disable roaming, tap Home only.
To enable roaming, tap Automatic.
To permit data access while roaming, tap to enable Data roaming.
Note: When prompted Allow data roaming, tap OK.
The roaming settings are now changed.
Yes it is roaming Telcel "5 bars" and R "for roaming"
As I said data is no issue, messenger, email etc....
Did Trump already build the wall?
Have you tried to reset the network settings?
if your data is working but calls are not verify your apn is set up properly.
try using hangouts dialer and see if that call goes through, if it does then it's going to be the APN. You can copy it line for line from your s7
l want to thank everybody that contributed.
I am back home in Canada so I can no longer test.
When I go back again I think just for the kicks I will bring the Galaxy S7 just doubtful if will work but who knows.
Still will try and get the Pixel XL to work.
I can not see how it would matter, Pixel XL, Galaxy S7 or whatever if the phone supports the Network it should work.
Now I seen people using the Galaxy S7 receiving and making calls ?
Will have to try it.
On the other hand I know people making the same complaint about Telcel
I checked the difference in hardware Pixel XL / Galaxy S7 they do have a few differences in the bands they support ?
Reset network connections I did think of this but but the warning seeming pretty scary.
If the Galaxy 7 works for phone calls in Mexico for my next trip I will reset network connections. Worth a try, I read googling a few people had similar issues and this worked.
APN the phone works Data and Voice in Canada, in USA but Data only in Mexico "voice one out of 10 calls". Just not sure
Either way I like new phones and the Pixel XL is better.... Pixel XL 2 may want that too
I've tried everything, so hopefully someone can shine some light into this issue.
I bought a new (unused but from a 3rd party) Samsung Galaxy A50 (A505U) Verizon branded and unlocked. Got a sim card from Visible and went to get it connected. Nothing. WiFi works, everything works, but no cell service.
Here's what I've done (some multiple times)
- reset everything to include network settings, hard reset, etc
- removing the sim, resetting, putting the sim back in. I always get a notification saying the sim card is removed and it goes away when I put the sim back in, so it is recognizing a sim card is in there
- switched sims with another Visible phone/sim and nothing. Both sims worked on other phone but neither worked on this phone
- tried getting into the hidden menus but none of them worked
- talked to Visible tech support which upgraded the issue to the highest level and concluded it's the phone
- Visible believes it's the APN settings but I cannot edit current APNs nor add new ones (grayed out)
- manually add networks, I can see Visible, TMobile, ATT, and some weird numbers, but when I try to connect to Visible it says cannot register on the network, other networks say the sim is not setup for them
- sometimes I get the icon that shows all bars but they're grayed out, sometimes it shows 3-4 bars lit up, sometimes even shows a 4G icon, but mostly the grayed out bars
- sent the phone to Samsung, they tested it and found no faults, guess the hardware is good, ruled that out.
- got into dev options but I'm aware the OEM unlock is not on option on the A505U, not sure if I can change anything else.
I'm out of options. Any other ideas? I think if I can either get into the hidden menus I'll be able to diagnose it better, or if I can somehow change the APN settings I'll be able to set it up. Visible tech support thinks it's the APN, which makes sense to me, but I can't change them.
Any help is greatly appreciated.
I was able to get into the CSC change function, there's not many there, but would changing the CSC help? If so, which should I go to?
I've had a similar issue. Was working fine until the Android 10 update arrived. Since then, it won't work with my total wireless sim card. Tried 3 different sim cards on it, but nothing. Can't add it do anything with the APN, and getting into the phone info hidden menu doesn't help any. I suspect it's a bug in the new firmware or something like that. Works fine with a Verizon SIM though.
Update: Verizon SIM no longer connects to phone. Still works with LTE data. It seems that the CDMA radio quit working with the update to Android 10. Must have been collecting to the Verizon network with VoLTE until it updated the provisioning or something.
So, I finally figured out a workaround for mine that was able to get both data and voice networks to connect while using total wireless, which is an MVNO on the Verizon network. I pretty much narrowed it down to being an issue with the modem not working with CDMA. What I did was download the last Android 9 firmware and flashed just the modem (file starts with CP_) using Odin. After that, I rebooted it and voila! It connected.
Just thought i would give my experience as i just delt with this. i got my 10 update this morning nd let it update and apon a reboot i lost all mobile connection, a signal bar would show for a few seconds looking like it was trying to lock in a signal and it would go back to the ⌀ symbol. i tried flashing the android 9 modem from 2 different updates and neither fixed it. i just decided to order a new phone as i feel its time anyways. my next attempt will be to flash android 9 back using odin then just throw this phone up on craigslist
edit: odin successfully flashed back to android 9 and signal now works again. so if anyone has this issue you can try the method above of just flashing the modem and if that doesnt work you can go back to 9 and restore functionality of verizon mvno's
darkmage1991 said:
Just thought i would give my experience as i just delt with this. i got my 10 update this morning nd let it update and apon a reboot i lost all mobile connection, a signal bar would show for a few seconds looking like it was trying to lock in a signal and it would go back to the ⌀ symbol.
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Click to collapse
Out of curiosity, which carrier are you using?
TJay99 said:
Out of curiosity, which carrier are you using?
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samsung a50 not connecting to VZW towers (red pocket)
My phone is doing the exact same thing and while I can appreciate how you resolved the issue it doesn't make much sense to me.
I use Red Pocket for my network. (Which uses Verizon towers - I use the CDMA Sim)
Before this major update to 10 my phone worked flawlessly. Now it won't connect to the network much like you guys have stated in this thread. Mine will connect intermittently for like 3 or 4 min tops and then get kicked off the tower and will actually not show any bars (Circle with a line through it) to show no service for about 10 or so minutes then restart the whole process.
I also have a work phone (2nd phone) that is directly tied to the verizon towers on the verizon network. If I take the sim out of that phone and put it in my samsung a50 the samsung a50 is happy and can make phone calls, send texts, and stays on the vzw towers with no disconnects.
If I take my red pocket sim card and place it in my work phone that phone also works just fine - send messages, make phone calls, and stays on the vzw towers with no disconnects. (work phone = iphoneXR - it's free, sue me)
Even though reverting the modem obviously fixes your issue I do not think that is the actual problem. It also doesn't seem that a third party carrier is being randomly booted off the towers, it seems to be a glitch with third party carriers using third party sims utilizing this new android 10 software that VZW towers do not like.
Which obviously points to an issue with Samsung's latest software not being compatible with third party carriers.
I can't seem to contact Samsung in a direct manner to resolve this issue as they want me to take it to a third party store to have it looked at. I spent 2 and half hours with tech support from red pocket and they came to the conclusion that VZW was doing "upgrades/maintenance" to their towers in my area. (whatever that means.
Any ideas on how I can contact Samsung directly to detail this issue to them? I really do not want to have to root my phone in order to use odin to set my modem back to version 9 as I'm hearing that doing so voids all kinds of implied warranties with the phone and it's only 6 months old.
Appreciate any help that you guys might be able to steer me towards.
Thanks.
Before this major update to 10 my phone worked flawlessly- They Told you the answer, Odin # 9 or if its under warranty take it back Good luck.
My phone (SM-A505U) wasn't even working on visible before android 10.
See my post at the end of this thread: https://forum.xda-developers.com/ga...official-firmware-t3955727/page2#post83845605
I have that problem too. Where I can download v9. I got the Odin.
So I have used my S20 Ultra since March this year.
I've noticed that the cellular network just "sleeps" and doesn't receive calls/SMSes after some time of phone idling/usage on WiFi.
I tried googling and found many other users reporting similar issues, noticing also that it seems majority if not all are Exynos variant users (not based in US).
Personally, this is definitely not a telco provider issue as I have had this issue on my old SIM (which was working fine on my old phone) and new SIM that I recently got after switching providers to see if the issue went away.
For me, sometimes the calls come in a few minutes late, and then the phone rings but when picking up, the call just gets stuck because the other party is no longer calling.
This is particularly noticeable as due to mostly staying home during COVID-19.
Toggling flight mode to "wake" the cellular network makes the phone be able to receive calls again.
Forum thread for reference: https://us.community.samsung.com/t5/Galaxy-S20/S20-Ultra-not-receiving-calls/td-p/1190155
Lucky me. Didn't have this problem on my s20+ exynos
Sent from my SM-G985F using Tapatalk
lynxlok94 said:
So I have used my S20 Ultra since March this year.
I've noticed that the cellular network just "sleeps" and doesn't receive calls/SMSes after some time of phone idling/usage on WiFi.
I tried googling and found many other users reporting similar issues, noticing also that it seems majority if not all are Exynos variant users (not based in US).
Personally, this is definitely not a telco provider issue as I have had this issue on my old SIM (which was working fine on my old phone) and new SIM that I recently got after switching providers to see if the issue went away.
For me, sometimes the calls come in a few minutes late, and then the phone rings but when picking up, the call just gets stuck because the other party is no longer calling.
This is particularly noticeable as due to mostly staying home during COVID-19.
Toggling flight mode to "wake" the cellular network makes the phone be able to receive calls again.
Click to expand...
Click to collapse
I also have this issue (S20+ exynos, dual sim). I use wifi at home/work and I had several missed calls and delayed text messages during this time.
Now I turned on the text alerts about the missed calls. At least when my phone connects again to the network I get these notifications.
I am also having this issue. People call and it rings out at their end but not at my end. Is there any fix?
Try switching the active number to slot 2. I tried it for a couple of days and I think it was better. I have switched back to slot 1 to monitor as I just got the ATE6 update and wanna see if it changed anything.
I had this issue and figured out what was causing it. You need to disable VoLTE if you are not registered to use this service on your carrier's network.
ctp9 said:
I had this issue and figured out what was causing it. You need to disable VoLTE if you are not registered to use this service on your carrier's network.
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Click to collapse
My sim cards are already registered to use VoLTE, my carrier notified me a few months ago about it.
I tried to disable VoLTE on both sim cards. It was OK for 2 weeks until now.
I got a new missed call notification text message and after 5 minutes a message from the caller.
Now I enabled VoLTE again for one sim card. Let's see if there will be more missed calls with this setting.