Can only connect to LTE and cannot make calls - Samsung Galaxy S7 Edge Questions and Answers

I have a weird problem with a new SM-G935F (Exynos), which I'm trying to use in Serbia (Telenor), while it's branded for TIM Italy carrier. The device connects to LTE network instantly, but I'm unable to make calls, and messages are received only intermittently - data works properly all the time. When I try to connect to 2G or 3G only, phone cannot register to network at all. I tried flashing multiple modems both for 6.0.1 and 7.0 and tried multiple stock ROMs, after, of course, trying everything with a pristine initial setup...I tested the SIM card in another phone and it works normally. I can't test another nano SIM card with the phone at the moment...Can it be something with the CSC, since that is the only part that I didn't touch? Or is it most likely a hardware problem?
Thank you very much!

I have same problem on a 935f! Up

Sprov said:
I have same problem on a 935f! Up
Click to expand...
Click to collapse
Hi Sprov,
I see you're from Italy - is your phone also bought from TIM?

It has everything to do with the csc!!
Telenor might be using VoLTE technology to make voice/video calls. Since Serbia isn't in UK, BTU firmware has its own standards and isn't compatible with your region. Same issue for me here. Reverting back to 6.0.1 will gain me back calls feature. Until an official update is released in your region, you will have to compromise this one feature(well the most important one). If you very much want the feature, the only way right now is to revert back to old firmware(including the csc)

Thanks a lot for the insight! But should that affect ability to connect to network when it's set to 2G/3G only? Since the phone doesn't register at all, only to LTE. Thanks again!

This has even happen to me. I was a beta tester to. Recently I added a carrier for my sim 2 which supports VoLTE. When I flashed BTU official yesterday via OTA there was no VoLTE and finally came to know that BTU CSC doesn't provides VoLTE. Since its an unbranded firmware. Reverted back to my CSC MM. Got back VoLTE also.
Waiting for an INS version of Nougat.
Sent from my SM-G935F using Tapatalk

It turns out that, in my case, very weird, it was due to SIM card...It worked normally on all modes in 2 other phones, but in this phone only LTE as I stated. Once I put in a new SIM card, same carrier and everything, no problem at all.
I understand the problem with calls and VoLTE, but in this case the weirdest was that it connected to LTE at all, while it couldn't register to network on 2G/3G.

protech_v2 said:
Hi Sprov,
I see you're from Italy - is your phone also bought from TIM?
Click to expand...
Click to collapse
I had it for free, a friend who couldn't stand the problem gave me, though he bought it from someone, not store. Imei is ok.
If i switch from h3g to TIM, so using roaming, i have 2g internet and working connection. Weird.
---------- Post added at 10:13 PM ---------- Previous post was at 10:10 PM ----------
protech_v2 said:
Hi Sprov,
I see you're from Italy - is your phone also bought from TIM?
Click to expand...
Click to collapse
Sprov said:
I had it for free, a friend who couldn't stand the problem gave me, though he bought it from someone, not store. Imei is ok.
If i switch from h3g to TIM, so using roaming, i have 2g internet and working connection. Weird.
Click to expand...
Click to collapse
Oh and i have another s7edge which is my main device, i tested also tim sim and wind on both, i have same behavior of 2g/3g/4g. 4g is really unstable too than in my personal s7e. All tested in same condition with live sim switching

Related

Can't make calls when on LTE mode

I have n9005 rooted TouchWiz stock on 5.0,
when my phone is on LTE mode i'am unable to make/receive calls.
Kindly help me solve this problem.
Is the phone set to LTE only? If it is, does the carrier support VoLTE?
thahim said:
I have n9005 rooted TouchWiz stock on 5.0,
when my phone is on LTE mode i'am unable to make/receive calls.
Kindly help me solve this problem.
Click to expand...
Click to collapse
LTE/4G is a Data-Only network. To make calls over it your carrier needs to support Voice Over LTE, or VoLTE for short. Which is the mobile equivalent of VoIP.\
If your carrier does not support VoLTE, and your device is only allowed to access LTE, you can't make calls. Change to 'LTE/WCDMA (Auto)' (4G/3G) or 'LTE/WCDMA/GSM (Auto)' (4G/3G/2G) mode so the phone can automatically change to a network that supports voice codecs.
ShadowLea said:
LTE/4G is a Data-Only network. To make calls over it your carrier needs to support Voice Over LTE, or VoLTE for short. Which is the mobile equivalent of VoIP.\
If your carrier does not support VoLTE, and your device is only allowed to access LTE, you can't make calls. Change to 'LTE/WCDMA (Auto)' (4G/3G) or 'LTE/WCDMA/GSM (Auto)' (4G/3G/2G) mode so the phone can automatically change to a network that supports voice codecs.
Click to expand...
Click to collapse
My phone doesnt has LTE only mode so i keep it on LTE/WCDMA/GSM, still i can't make or rec calls.
Sent from my SM-N9005 using Tapatalk
How about switching to wcdma/gsm or wcdma only?
audit13 said:
How about switching to wcdma/gsm or wcdma only?
Click to expand...
Click to collapse
They work fine, but LTE.
thahim said:
They work fine, but LTE.
Click to expand...
Click to collapse
Something appears to be preventing the automatic switch from LTE to 3G/2G. Did you do something in the Servce menu?
ShadowLea said:
Something appears to be preventing the automatic switch from LTE to 3G/2G. Did you do something in the Servce menu?
Click to expand...
Click to collapse
My device didn't had the LTE option first so i did something which i don't remember now, what it was, i did it when i never used LTE, but as now i'm using LTE and came accross this problem. also i have installed a network type toggle app.
Sorry for being such a nub but where do I go to change the mode? Option > network operation? Thanks
Sent from Tapatalk {♤}
soul2eat said:
Sorry for being such a nub but where do I go to change the mode? Option > network operation? Thanks
Sent from Tapatalk {♤}
Click to expand...
Click to collapse
Network settings has that option for Network Type.
Regions  myanmar
Not receiving incoming calls on AIRTEL 4G LTE
Iam facing peculiar problem with the phone. Need help with the problem.
I am using samsung note 3 LTE. When ever some one tries to call me, my mobile is Not reachable or out of coverage area even when my mobile is in my hand , perfectly working with the second sim. outgoing calls are working fine. Again, when I am in call, then if any one tries calling me, then I get call waiting. So incoming call waiting is working for me. But incoming calls are not able to connect. LTE data is working fine though incoming calls are not working. 
Tried the following but no luck. Problem still persists:
1. Reset phone and erase all data
2. Hard reset phone (volume down + poweroff and clear all data in drive)
3. Tried changing SIM to second slot
When I switch the sim back to 3G mode or 2g mode , incoming calls are working perfectly fine . I googled it and found that most people had same issue and was resolved on switching back to 3G or 2g . 
But I need to use 4g . Please tell me a solution.
I had that same issue until I took my note 3 to Rogers and they said that the note 3 doesn't support Lte
Your rom must support VoLTE.
I would unroot and go back to stock firmware, and see if problem still happens,? if it does ,its most likely the sim card.sd card reader slot, (flex cable),my Galaxy s4 had the similar symptoms , but LTE would work with a custom rom, but not if I used stock firmware, replacing sim card reader flex , just google your mak and model and search ebay. mine cost a few pounds for a decent quality part, so dont go rushing to buy the cheapest. No problems since replacing that part, even after resetting phone 3 times to see if it was a fluke. I know its a bit late for a reply, but this actually worked , I am 99% sure it would work for anyone else who has this problem with lte not connecting when 3G, and 2g do connect. If you have tried swapping sim cards, putting sim in another phone,, etc,etc. this part mentioned(sim card/sd card reader) is your culprit. Took me just over 5 hours of testing to find the solution. thanks and fair well android users
---------- Post added at 06:49 AM ---------- Previous post was at 06:24 AM ----------
For many people having issues with LTE not connecting and diverting to voicemail on android, I am here to offer a solution to your woes. I have a Samsung Galaxy S4, GT-I9505, and recently in in 2018 in July, I had the same problem, phone calls connected on Gsm, Wdcma, BUT when I tried LTe mode, NOTHING, WENT STRAIGHT TO VOICEMAIL.Anyway I tried almost everything mentioned on certain websites and forums, with some luck, Changing LTE mode to GSM worked, and I could receive and hear phone calls. So I investigated further, I tried re flashing stock firmware, factory resetting phone.(nothing worked). I then rooted my phone and flashed a custom rom (do not try this) as it could damage your device if flashed wrongly. Yeah, so I flashed a custom rom, and low and behold problem disappeared, so I used my phone on LTE for 2 days, with no problems, I then decided to go bacjk to stock firmware, ...problem came back, not connecting to LTE mode..........being as patient as I can be, never gave up, and had a spare phone which was dead, just laying in the drawer, ..so ,I took phone apart and thought, it must be where simcard contact make contact with sim card reader contacts ( broken sim card /sd card reader part, and was I wrong, no, it actually was the sim card reader part which coonects with th motherboard, Voila, I am 99% sure if anyone else has this problem with any android that has LTE capabilities, and you know its not the sim card, then try this fix first, MAKING SURE YOU GET SOMEONE YOU KNOW TO HELP YOU , IF YOU ARE UNSURE OF WHERE TO BUY AD HOW TO FIT. hope this has helped,and I know it is a long thread, but hopefully it will be a solution that works for whoever reads and trie this, over and out. yours in sincerity, Tech82, from Surrey, England.
poddy82 said:
I would...
Click to expand...
Click to collapse
You are only 3 years too late. No big deal !
Sent from my Galaxy Note 8 using XDA Labs
In fairness post might be useful to some .
Where it is actually the sim holder .
But 99% of the problems are not the sim holder .
Though very odd that S4 user makes only one post and that's on a Note 3 forum not his phones forum .
i am facing the problem with my LGF180
This is Note 3 forum not your phone .

S7 Edge Duos data connectivity problems

Hi all,
I have the dual sim S7 SM-G935FD running the XSP firmware. Rooted with the microSD Mod on Sim 2. It's being used in the USA at the moment. Sim 1 is AT&T and Sim 2 is T-Mobile. Both are USA sim cards. Everything goes through Sim 1 AT&T - Voice, Text and Data. Sim 2 is just for receiving calls only. Sim 1 is set at LTE/3G/2G and Sim 2 is 2G only.
Since day one I have this connectivity issue pertaining to data connection.
When Sim 2 gets a weak signal and eventually drops out, data connection on Sim 1 remains - everything works. However, when Sim 2 is picking up signal again, the data connection on Sim 1 drops out.
When this happens, the pull down notification will display that the data connection is on Sim 2 - as if the phone switches the data connection from Sim 1 to Sim 2 by itself. However, if I go to the Sim Manager, it will show that the data connection is still on Sim 1 like it originally was. At this point, the phone has no data. And yes, the phone is displaying conflicting information. Notification says Data is on Sim 2 but Sim Manager says Data is on Sim 1.
To fix this, I have to use the Sim Manager, select Sim 2 for Data. Wait a few minutes. Then, choose Sim 1 for Data again, then everything comes back normal. Data connects.
This is quite annoying in a poor reception area.
Troubleshooting steps that I have tried but they do not fix the problem-
Flash stock firmware no root
Use a different stock firmware - XEU
2 sim cards only with no microSD card on the back of Sim 2
Choose 3G/2G only for Sim 1 and 2G for Sim 2
Swapping Sim 1 and Sim 2
If I disable Sim 2 the problem goes away, but of course, what's the point of dual sim then?
I also have a S6 Edge+ Duos SM-G9287 but it does not have this problem.
Any ideas? Thanks.
Just wanted to add that I am experiencing this as well.
Man this is getting unbearable. Is there a specific forum for the FD devices? I'm thinking I might just return this phone while I still can.
Wow I was going to put something on boards as well with literally the exact same setup in USA. It gets way annoying when tmobile gets weak and switches even though I have it set on sim 1 data. I really hope there is a fix or else I might make the switch to htc10 (if they even get a dual sim) and keep my fingers crossed it works better. My S6 duos works better than this but I don't have additional memory with hybrid SD sim card on s7.
Sent from my SM-G935F using XDA-Developers mobile app
FYI -
I have been running XSG firmware. I just upgraded from APC8 to APD1 and the problem still remains.
Just trying to save some time for those of you who thinks upgrading will resolve the issue... it will not.
It is amazing how the S6 Edge+ Duos does not have this problem. Things went backwards for Samsung.
No problems here though mine is the G9250 dual sim version (HK).
G9250 is s6 edge is it not? We are on g935FD. It seems like I can never find the elusive perfect dual sim! Always some kind of bug! Might be heading back to my Xperia z5 premium. Can you guys confirm that it's wifi causing it? Seems like whenever I come off of a wifi network it never picks mobile data back up.
That seems like part of the problem too..as soon as wifi loses connection then it switches and then no more data
Sent from my SM-G935F using XDA-Developers mobile app
Has anyone fixed this? I have tried to flash a couple different modem firmwares to no avail. The T-mobile one won't flash as it uses a snapdragon chipset.
Mine was doing fine until I did a firmware update and now the data connection problem appeared. I was on a B6 firmware with a B9 modem on a AFG CSC so I will try to go back to this and report back whether the issue resolves. Any firmware starting D1 (tried D3, D6 and D8) causes the data connection lost issue. Even just going back to a B9 modem with the D8 firmware didn't help. What a pain in the rear...
Follow up to my previous post:
Officially, G935FD is a piece of crap. Tried every combination of modem/AP to get this work but no luck. Resorted to single sim mode for now.
I have this same issue. the only way it works is to manually select one sim in use at a time. I just removed the second sim and added a micro sd card for now.
craigg1 said:
I have this same issue. the only way it works is to manually select one sim in use at a time. I just removed the second sim and added a micro sd card for now.
Click to expand...
Click to collapse
Did you update your firmware to a different CSC? That's when my issues started (went from AFG to BTU and even after going back the problem wasn't fixed)
What is your original CSC?
onurd said:
Did you update your firmware to a different CSC? That's when my issues started (went from AFG to BTU and even after going back the problem wasn't fixed)
What is your original CSC?
Click to expand...
Click to collapse
Mine didn't work out of the box with stock firmware. I have since upgraded the stock firmware but haven't tried using two SIMs with the latest update. Maybe I'll test it over the weekend.
+1 on this bug existing for me since day one. I have been sticking it out and staying with dual sim as I don't have any other option. Kinda wishing I had just returned it... I have gone through hell trying to talk with people in India (where the phone is apparently from) about just getting the bug's existence up the chain. If only we could get a dev to take a look at our logs so I can have a reason to just root the damn thing already. Has anyone tried maybe flashing the sim manager apk from the s6 edge? Is there even a sim manager apk?
I have exact same problem with S6 edge+ dual sims. SM-G9287. Problem started since marshmallow updated. Didn't have this problem before under old android version. Has anybody found any fix yet? Right now, If I disable one of the sim, then it seems ok, but I need both sim to be on to receive call on either number.
My phone was stock firmware. Problem seems to be with Marshmallow 6.0.1 , not because of custom firmware.
vietmax said:
I have exact same problem with S6 edge+ dual sims. SM-G9287. Problem started since marshmallow updated. Didn't have this problem before under old android version. Has anybody found any fix yet? Right now, If I disable one of the sim, then it seems ok, but I need both sim to be on to receive call on either number.
My phone was stock firmware. Problem seems to be with Marshmallow 6.0.1 , not because of custom firmware.
Click to expand...
Click to collapse
Kind of same problem here, but it happens only since I received the update to APD1.
I live on a border zone, so I have to force my LTE sim card to its own network. The second SIM is only on 2G.
When the phone loses its own network, SIM with LTE completely disappears, everything is moved to SIM 2G and of course I lose network. The problem is that the SIM with LTE is not seen anymore, even if I go back where the signal is, and the "mobile networks" option disappears in the Settings. I cannot do anything else the reboot the phone to see the SIM again.
Ciao Marina
I have similar issues with my s7 duos not the edge model. Sim1 tmobile, sim2 at&t. Sim2 seems to be the issue for me. Cell quality at my house is not great. I also have a xperia z5 premium dual that has similar problems mainly with lte. The samsung does hold lte signal but the bars are misleading. But the samsung, I woke up this morning and sim2 was offline no calls or text or data. Call quality with sim2 isnt as good either. I blame cell signal on that since the sony has similar issues. But I have seen it with sim1 set to calls and texts and sim2 for data the pull down says sim1 even though sim manager says sim2 is data. Wtf right? Disabling sim2 and reenabling gets it back working again but what happens when the phone does this is you lose data since sim1 data would be gsm only. The common theme is sim2? Also seems signal quality is a big factor. My CSC code is ECT which is Nigeria. I have not changed firmware yet other than the APD1 update. Ironically my xperia z5 dual didnt have these issues at all with lollipop the problems started with marshmallow. I am in the US by the way.
Temporary fix?
Looks like I accidentally ran into a temporary fix, that's working for me for the last few days. I'm on Vodafone for SIM1 and T-Mobile for SIM2, EU&US.
When I restart the phone and set SIM1 for data on LTE/3G/2G it connects, but looses the connection after a while and defaults to SIM2 (with no data). No BT, no WIFI, no data icon anywhere the screen.
When this happened, I ejected the SIM card holder and pushed it back in 2 seconds. Suddenly SIM1 was trying again to connect and the 4G icon appeared. At his point I turned on WIFI.
The weird stage: WIFI on, 4G icon flashing every 5secs – but it's working as it should. If I loose reception, it does not switch cards. Actually never switches card if I don't want to. I can live with the flashing 4G until we have an official fix.
Let me know if it works for you guys!
Im learning that mine is a lot more stable if I set everything to the same sim and not split up talk/text on sim1 and data only on sim2 like I was doing. Not sure if this is placebo for now but I have everything set to sim2 and so far so good with no drops.

VoLTE not working

I rooted my S7 edge, voLTE was perfectly working. But now when I flashed the stock firmware via odin, voLTE no longer works. Please help
Don't know what network your on but here in the UK I think Three are the only network with Volte and it wont work on mine because they said it has to be a Three branded handset............................for now at least, you flashing the handset may be a similar situation
Shipoftheline said:
Don't know what network your on but here in the UK I think Three are the only network with Volte and it wont work on mine because they said it has to be a Three branded handset............................for now at least, you flashing the handset may be a similar situation
Click to expand...
Click to collapse
I tried three out for a month and volte worked for me with an unbranded s7 edge duos, trouble is the network signal was awful at home and even though they have the wifi calling app, it doesn't work on a dual sim phone so I left and am now with EE. volte doesn't work on EE with unbranded phone, but I'm 100% sure it works on Three. You have to enable it on your phone though.
It was Three who told me this when I asked why my S7 Edge doesn't work with Volte
Shipoftheline said:
It was Three who told me this when I asked why my S7 Edge doesn't work with Volte
Click to expand...
Click to collapse
OK Mine just worked, it was added to the latest OTA update I received. Don't even get the option for switching on volte now I'm on EE.

3/4G not working

Since we moved from central Africa back to France my wife's note 4 cannot get connected to mobile data...
All was working well - cell phone/3G (only 3G provided) and wifi but now mobile data is no longer working.
Tried her sim card in another phone and 3/4G is working so the sim is ok...checked the internet and it looks like they are using the same frequency bands so if it worked in Central Africa it should also work here in France.
The phone in question is an ex sprint (P model) which got flashed to European standards - its modem is for the European networks.
Should I try to flash another modem and if so which one? I understand that I cannot just flash any modem?
cfds said:
Since we moved from central Africa back to France my wife's note 4 cannot get connected to mobile data...
All was working well - cell phone/3G (only 3G provided) and wifi but now mobile data is no longer working.
Tried her sim card in another phone and 3/4G is working so the sim is ok...checked the internet and it looks like they are using the same frequency bands so if it worked in Central Africa it should also work here in France.
The phone in question is an ex sprint (P model) which got flashed to European standards - its modem is for the European networks.
Should I try to flash another modem and if so which one? I understand that I cannot just flash any modem?
Click to expand...
Click to collapse
Did you checked your APN settings is correct for your network provider ?
Trex888 said:
Did you checked your APN settings is correct for your network provider ?
Click to expand...
Click to collapse
Checked them and found them to be absent...filled them out and now mobile data is working.
I have bought more than a few mobile phones the last couple of years and this is the first time I had to manually enter the APN settings...anyway, glad that it is solved. No need to flash another modem!

No Network on Essential phone in India

I am currently in India, and trying to use my Essential PH1 with a Vodafone India 4G sim card. The SIM is not registering with the phone, and I am unable to get any network. I keep getting the message "your SIM is not allowed to use this network". I have tried contacting the local service center, but they tell me that the handset settings need to be changed. The same SIM works well with other phones in India.
I am using a Vodafone India 4G sim.. its a 'postpaid' connection (if that matters). When I manually select the network, all the available networks are listed, when I select "choose automatically", a message pops up "already registered on the network", but i dont get any signal.
When I manually try to select Vodafone IN from the list, pop up message says "your SIM is not allowed to use this network"
I have checked with Vodafone customer care, and they are sure its a phone config issue.
The same SIM works perfectly fine in any other handset. (Currently running the same SIM in Nexus 5)
Since this phone has not been launched in India yet, there is no technical knowledge or troubleshooting database available locally. Would you be able to help me with the correct settings so that the I can continue using the phone in India?
HI
I am having the same Issue with my phone, just bought it from US. indian SIMS not registering, were you able to find a solution for this?
Thanks
No.. not yet. The Essential customer care was supposed to get back, but they are not responding since the last couple of days. Do keep in touch if you are able to find a solution...
rahuljj said:
HI
I am having the same Issue with my phone, just bought it from US. indian SIMS not registering, were you able to find a solution for this?
Thanks
Click to expand...
Click to collapse
Hi
Received an OTA today for the device, Airtel and Vodafone are now registering ,. Jio is not able to register.
Cheers
I'm having a similar problem in Japan with Softbank, which ironically bought Sprint - the sole carrier of the phone in the USA.
There is no signal at all, and when selecting Softbank manually from the list of carriers, an error message stating it can't authenticate on the network popped up.
I faced the same issue a week ago, with both Airtel and Jio not registering the device on their networks. Yesterday, I booted up the phone again, installed the OTA, and was on my way to the Airtel store to talk about it. When I put in my SIM and turned it on, it got a signal and LTE data. I didn't try the same with Jio.
The most likely reason for the phone not being detected initially is that Essential has just one SKU, as far as I know, with all IMEIs of the 99x series. That's the typical IMEI series for Verizon and Sprint in the US, which are CDMA networks. Most other GSM IMEIs are of the 35x series.
I had planned to contact Essential support about this, but I didn't get down to it. I'm not sure what exactly made it work the second time. Maybe the OTA update changed something, or maybe Airtel took a while to auto-register (whitelist) the IMEI of this phone after it first detected it being used with a legitimate Airtel SIM. Regardless, it works just fine now.
NOTE: After I was able to get a signal, I could see the LTE symbol with no internet connectivity. I changed the preferred network type to "Global" in Settings and then it worked just fine. The default setting of LTE/TDSCDMA/CDMA/EVDO/GSM/WCDMA didn't allow data, only calls and SMS.
Yes am too facing same problem with essential PH1
used all operator Indian 4g / 3g sim card
even cdma also ...no result ...no network
Product Name -Mata
Variant Openus
Baseband 2.0.c4-M1.2
Secure boot Yes
Device State Locked
anyone some clue ???
regards,
When using outside of the U.S.A change network type to Global. Secondly insert the Sim (with the phone turned off). You should receive service when you turn the device on. In case you don't, give it a moment.
I had to replace my Sim as a last resort and then it worked without a problem.
Good luck.
-Nav
https://www.reddit.com/r/essential/comments/761q61/reliance_jio_india_coverage_works/
Can you please test it for jio sim also
Hi,
I am planning to import the unlocked essential phone from USA. Can you please check and confirm if it works with jio sim or not. As my primary sim is on jio.
Thanks
Riyaz
sashank said:
I faced the same issue a week ago, with both Airtel and Jio not registering the device on their networks. Yesterday, I booted up the phone again, installed the OTA, and was on my way to the Airtel store to talk about it. When I put in my SIM and turned it on, it got a signal and LTE data. I didn't try the same with Jio.
The most likely reason for the phone not being detected initially is that Essential has just one SKU, as far as I know, with all IMEIs of the 99x series. That's the typical IMEI series for Verizon and Sprint in the US, which are CDMA networks. Most other GSM IMEIs are of the 35x series.
I had planned to contact Essential support about this, but I didn't get down to it. I'm not sure what exactly made it work the second time. Maybe the OTA update changed something, or maybe Airtel took a while to auto-register (whitelist) the IMEI of this phone after it first detected it being used with a legitimate Airtel SIM. Regardless, it works just fine now.
NOTE: After I was able to get a signal, I could see the LTE symbol with no internet connectivity. I changed the preferred network type to "Global" in Settings and then it worked just fine. The default setting of LTE/TDSCDMA/CDMA/EVDO/GSM/WCDMA didn't allow data, only calls and SMS.
Click to expand...
Click to collapse
---------- Post added at 02:51 AM ---------- Previous post was at 02:48 AM ----------
Hi,
I am planning to import the unlocked essential phone from USA.
And my primary sim is JIO
Can you please check and confirm if it works with jio sim or not.
Will the essential phone support volte
Thanks
sashank said:
I faced the same issue a week ago, with both Airtel and Jio not registering the device on their networks. Yesterday, I booted up the phone again, installed the OTA, and was on my way to the Airtel store to talk about it. When I put in my SIM and turned it on, it got a signal and LTE data. I didn't try the same with Jio.
The most likely reason for the phone not being detected initially is that Essential has just one SKU, as far as I know, with all IMEIs of the 99x series. That's the typical IMEI series for Verizon and Sprint in the US, which are CDMA networks. Most other GSM IMEIs are of the 35x series.
I had planned to contact Essential support about this, but I didn't get down to it. I'm not sure what exactly made it work the second time. Maybe the OTA update changed something, or maybe Airtel took a while to auto-register (whitelist) the IMEI of this phone after it first detected it being used with a legitimate Airtel SIM. Regardless, it works just fine now.
NOTE: After I was able to get a signal, I could see the LTE symbol with no internet connectivity. I changed the preferred network type to "Global" in Settings and then it worked just fine. The default setting of LTE/TDSCDMA/CDMA/EVDO/GSM/WCDMA didn't allow data, only calls and SMS.
Click to expand...
Click to collapse

Categories

Resources