[Q] Incoming calls fail on 3G on hypersimmed Sharp 005SH - Android Q&A, Help & Troubleshooting

Hello,
I found one thread about the same issue but didn't want to revive it because it's in an HTC Incredible S dedicated forum. Anyway, I am having the exact same problem as described there and I've been looking for a solution for months now...
Incoming calls fail when the phone is switched to 3G.
Until I came upon that thread, I thought this problem only occurs on Hypersimmed Japanese phones -- Japanese phones have a SIM lock that can only be overcome using a hypersim and even then they don't usually work fine in 3G.
Some hypersims, however, seem to be able to "do something" about this issue - while I have zero issues with incoming calls under 3G on my 904SH (2006 model), the problem described here occurs on my Android-powered Sharp Softbank 005SH.
So, I can connect to the 3G network (when in 3G only mode - if set to AUTO the switch causes the phone to lose signal and the SIM must be inserted in a "normal" phone to regain signal, we call this "CPR").
3G data works and 3G incoming calls work -- as long as there is an active data connection.
One way to do this was have Skype running all the time - huge battery drain and still incoming calls would occasionally fail as Skype doesn't seem to update its data at fixed small intervals...
I have estimated that the data connection closes in about 30 seconds, which means that after this period, incoming calls will fail.
I tried a small app that a friend had written - a screen widget that connects to a server at a fixed interval, e.g. 20 or 30 seconds, and displays different small photos.
This app does the trick as long as the phone's screen is on. If I switch it off, the app continues working, and even lights up the screen every 20 seconds (at maybe 1/3 of normal brightness) but incoming calls fail.
Now, in the above mentioned thread, the user only writes that his problem got fixed by itself.
I too have excellent 3G coverage and it's not a local problem (near my home's signal tower).
So, any ideas will be welcome!

Related

Figured out battery and connectivity nuances

Ok,
After reading the forms and after asking questions here (and experimenting) I finally figured this gear s out! Forgive me if you all knew this...but to me it was a process to figure out. For all my talk below...assume BT on and WIFI off.
I am on verizon: not sure if same on other carriers...but my mobile settings are
gear network ON/OFF/Auto (this is confusing...should be called GEAR PHONE RADIO
if OFF- disables mobile network (see below) and cannot recieve text on GEAR number OR Calls on Gear number
IF AUTO- on BT:can only use phones number for text/calls...but off BT can use gears phone number for calls/text
if ON- can always use gear phone for text/sms EVEN if on BT...(can use both at all times).....but see below...lose 10% battery per hour
Mobile network: check box for on or off ....should be called (mobile network)- it is what either connects you remotely if not withing bt range OR uses mobile network to stream/download if away from phone. when ON you can get text/alerts from phone even if phone left home (and on)
SO:
Today- had BT on paired to phone and had gear network auto (which means its OFF since was on BT)- 7 hours 20% battery with lot of use!!!!!!!!!!!
Today- had BT on paried to phone and had GEAR network ON (always was on BT)- lost 20% in 2 hours with light use
I recommend: keep gear network on auto (and mobile network checked).....if you step away from phone and dont need alerts...change gear net off. If you are ever somewhere where you MUST be reachable (2 methods): leave gear network ON always......but you will max get 9-10 hours on your fully charged gear.
hope this helps....sorry if was obvious to you all
I seem to get different results to you.
I have network always on, but have set it to GSM only (2G) - not sure if you have that option? Some of the network operator provided Gear S have that option removed I believe?
I can run for 24+ hours easily, I have set calls to dial out from the Gear S but I respond to SMS messages via the link to my mobile. I was out tonight and I was getting SMS messages from my phone sat at home on my desk and responding via the return link to it on the mobile network.
If i switch on the 3G networks it does suck the battery though as you suggest, but 2G is plenty fast enough for sms, emails and notifications.
I have have had the permanent clock on today too for testing, not many messages and no calls from the watch, but I did get almost 20 hours before I had to put it on charge at 2%
Clock it quite bright though in a dark theater - but does look very cool
I am in the UK and have the latest firmware, did you get the update? Some are saying this helps with battery life.
bisto321 said:
I seem to get different results to you.
I have network always on, but have set it to GSM only (2G) - not sure if you have that option? Some of the network operator provided Gear S have that option removed I believe?
I can run for 24+ hours easily, I have set calls to dial out from the Gear S but I respond to SMS messages via the link to my mobile. I was out tonight and I was getting SMS messages from my phone sat at home on my desk and responding via the return link to it on the mobile network.
If i switch on the 3G networks it does suck the battery though as you suggest, but 2G is plenty fast enough for sms, emails and notifications.
I have have had the permanent clock on today too for testing, not many messages and no calls from the watch, but I did get almost 20 hours before I had to put it on charge at 2%
Clock it quite bright though in a dark theater - but does look very cool
I am in the UK and have the latest firmware, did you get the update? Some are saying this helps with battery life.
Click to expand...
Click to collapse
Verizon won't have the 2g/gsm option as it is cdma. Same with the latest firmware... our carriers here get in the way and slow down updates.

Mate 10 tethering doesnt work while on active call

Anyone else face this issue? if you tether the phone internet to your laptop, it works as expected but once you make/receive a call, the internet on the laptop will stop working. I also note that the phone signal will drop from 4G to 3G/H+ on the phone once you make/receive a call.
I have tried to reach out to Huawei for support but not getting any resolution from them.
Issue can be reproduce as below:
1. Tether your phone to your laptop and check that internet is available on your laptop.
2. Have someone call your phone or make an outgoing call, you will notice your mobile signal drop from 4G to 3G/H+. Keep the call ongoing and dont hang up.
3. Check your laptop to confirm that internet has stop working.
Not surprising at all, it's by design and not linked to the fact you're tethering the smartphone's data connection.
Without tethering, use a hands free kit or earphones, make a call or simply call your voicemail and now on the smartphone try browsing or any connected app, they'll fail: data connection is lost during voice call.
In order to keep your (4G) data connection, your mobile provider has to support VoLTE and you must activate related option on your phone. I did it, it's working, didn't try calling while tethering but I'm quite sure it's the same case =)
Still no internet with either VoLTE on and off. And I dont think this is to be expected as my previous phone, Xiaomi Mi Max has no issue and can do both call and tethering at the same time. And my colleague just did a test with his new Samsung Note9 and also didnt face this issue. Not sure if this is a software bug or a hardware design flaw/limitation
I use tethering/hotspot every few days and didn't notice any problem. Signal drops from 4G to 3G because Mate 10 doesn't support VoLTE but internet works fine for me.
ALP-L29 8.0.0.138(C636patch01)
domy_os said:
I use tethering/hotspot every few days and didn't notice any problem. Signal drops from 4G to 3G because Mate 10 doesn't support VoLTE but internet works fine for me.
ALP-L29 8.0.0.138(C636patch01)
Click to expand...
Click to collapse
Please test tethering while on call, not just tethering alone. Tethering alone works fine for me as well.
Internet will pause during phone call unless your network is VoLTE. My phone network signal will change from 4G to H+ during phone call.
jasperchc said:
Anyone else face this issue? if you tether the phone internet to your laptop, it works as expected but once you make/receive a call, the internet on the laptop will stop working. I also note that the phone signal will drop from 4G to 3G/H+ on the phone once you make/receive a call.
I have tried to reach out to Huawei for support but not getting any resolution from them.
Issue can be reproduce as below:
1. Tether your phone to your laptop and check that internet is available on your laptop.
2. Have someone call your phone or make an outgoing call, you will notice your mobile signal drop from 4G to 3G/H+. Keep the call ongoing and dont hang up.
3. Check your laptop to confirm that internet has stop working.
Click to expand...
Click to collapse
Sent from my BLA-L29 using Tapatalk
jasperchc said:
Please test tethering while on call, not just tethering alone. Tethering alone works fine for me as well.
Click to expand...
Click to collapse
As I said, it works fine while on call. I use tethering in my second apartment, airports and in almost every caffe bar and didn't notice any network problems on my notebook if someone calls me. There is one lost packet when phone starts ringing and that's it.
The first photo is WiFi hotspot + phone call and the second photo is USB tethering + phone call.
Hi Guys,
Thanks for the input on VoLTE, base on this info, i query my telco (Starhub) regarding this, and just a few mins ago i received an SMS that "HD Voice Plus" had been activated for my number. HD voice plus is just what they call VoLTE. Now i have a VoLTE icon on the top left of my phone. I tried the same case again and sure enough it is working now. Cheers.

Galaxy S9+ WIFI calling issues?

Hey all, been a long time since I've been down here, but I got a Verizon S9+ last week. Bone stock with latest update. I've had wifi calling issues right from the start. My house has terrible service, so with my old S4 I was almost always on wifi calling at home.
My issues:
It seems totally random. Sometimes it automatically switches to wifi calling no problem, other times it simply won't switch, even though I can't get out a text message or a call. Usually a reboot fixes the problem, but I don't need to be rebooting all day when I'm at home, and I miss calls and texts all the time. In testing, it's switching fine sometimes, and I can run upstairs and into the basement while on a call, and it will automatically switch back and forth. Other times, if it has even one bar of service, it will not switch, even though I can't make calls or send texts.
I have tried network reset, and factory data reset, no joy. Wifi calling is on, and I set "prefer wifi while roaming". If I am in airplane mode, even when connected to wifi, it will not make a call or send a text.
Another odd issue is with a group text. If I send a text to multiple people at once, I get an "invalid address" error.
It seems a lot of people on the internet are asking about issues with wifi calling with the S9's, should I just dump this thing and downgrade to an S8?

Redmi Note 9 Pro Stops Making Or Receiving Calls (Jio 4G Sim)

So this problem has been persisting for over a year now. I live in an area with great connectivity. All my family members have Jio sims and have never faced a problem.
Problem: I have two Jio sims in my phone. Sometimes my phone becomes unreachable or says 'number is switched off' when someone tries calling. If I try calling, it just shows call ended. The signal strength is always full and mobile data also works.
Restarting the phone or putting the phone in airplane mode and then back solves the issue.
Sometimes someone would call me, the phone would ring but I won't receive the call and then my phone would ring 30 minutes later and when I press answer, the app would hang.
Solutions I have tried:
- Factory reset my phone 3 times.
-Bought a new Sim
-Volte and WiFI calling is enabled, tried disabling also, but doesn't work
-Tried keeping Dual 4G on, it didn't work, tried turning off, it didn't work
Still problem is persisting
Please help, I don't have money for a new phone and I'm in the middle of job searching and I can't afford to miss recruiter calls
Jade1235 said:
So this problem has been persisting for over a year now. I live in an area with great connectivity. All my family members have Jio sims and have never faced a problem.
Problem: I have two Jio sims in my phone. Sometimes my phone becomes unreachable or says 'number is switched off' when someone tries calling. If I try calling, it just shows call ended. The signal strength is always full and mobile data also works.
Restarting the phone or putting the phone in airplane mode and then back solves the issue.
Sometimes someone would call me, the phone would ring but I won't receive the call and then my phone would ring 30 minutes later and when I press answer, the app would hang.
Solutions I have tried:
- Factory reset my phone 3 times.
-Bought a new Sim
-Volte and WiFI calling is enabled, tried disabling also, but doesn't work
-Tried keeping Dual 4G on, it didn't work, tried turning off, it didn't work
Still problem is persisting
Please help, I don't have money for a new phone and I'm in the middle of job searching and I can't afford to miss recruiter calls
Click to expand...
Click to collapse
My phone just started having this same issue. I have a redmi note 9s
Jade1235 said:
So this problem has been persisting for over a year now. I live in an area with great connectivity. All my family members have Jio sims and have never faced a problem.
Problem: I have two Jio sims in my phone. Sometimes my phone becomes unreachable or says 'number is switched off' when someone tries calling. If I try calling, it just shows call ended. The signal strength is always full and mobile data also works.
Restarting the phone or putting the phone in airplane mode and then back solves the issue.
Sometimes someone would call me, the phone would ring but I won't receive the call and then my phone would ring 30 minutes later and when I press answer, the app would hang.
Solutions I have tried:
- Factory reset my phone 3 times.
-Bought a new Sim
-Volte and WiFI calling is enabled, tried disabling also, but doesn't work
-Tried keeping Dual 4G on, it didn't work, tried turning off, it didn't work
Still problem is persisting
Please help, I don't have money for a new phone and I'm in the middle of job searching and I can't afford to miss recruiter calls
Click to expand...
Click to collapse
Try reinstalling the firmware

Question Wifi calling issues

Since the last OTA update I am facing issues while calling on WiFi.
While my phone is already on WiFi if I recieve a call, intermittently the voice breaks alot, after manually switching to Mobile network it works alright.
But Today I faced a weird issue, I received a call on mobile network when I was outside, as soon as I entered home and switched to WiFi, I got a message on my screen that the call has dropped and voice stopped, when I dialled back the call got connected automatically and I could hear my friend still talking like it never disconnected and at the same time I could also hear 2nd voice that the number you have called is busy. I tried to disconnect and call again but it was the same, to get out of this loop I had to switch back to Mobile network and disconnect.
This is the first time I faced such issue.

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