Question 5g and 4g issues - OPPO Find X3 Pro

hi
I bought used oppo find X3 pro from ebay, the seller noted the sim 1 (imei 1) Blacklist in United Kingdom (will work if use in other's country's(im already check about the imei status and its clear) , when i tested the phone i noted its e have problem with 5g and 4g(the signal is active and deactivate every 5-10 seconds) and the mobile data not work but if i change the network mode to 3g and 2g its work perfect (the signal is stable and the mobile data is work)
i makes factory rest and the problem is still, i think the problem in 5g and 4g modem.
anyone have any idea how i can fix this problem

Related

Call Issue in S10 in Exynos Indian Variant

Hello Guys,
I am having a weird issue in my S10 regarding call.(Using Airtel)
I am unable to call anyone through the phone if the Network mode is set to anything other than LTE/3G/2G (auto Connect) (e.g - 2G Only , 3G/2G and so on).
Other the LTE mode , when I try to call someone the call gets cut immediately without any message , ring or anything else.
I tried putting the sim card in my Redmi Note 5 pro and set it to 2G mode , and it worked several times.
So can anyone provide a solution or if anyone can confirm whether they are facing this issue or not?
subhad43 said:
Hello Guys,
I am having a weird issue in my S10 regarding call.(Using Airtel)
I am unable to call anyone through the phone if the Network mode is set to anything other than LTE/3G/2G (auto Connect) (e.g - 2G Only , 3G/2G and so on).
Other the LTE mode , when I try to call someone the call gets cut immediately without any message , ring or anything else.
I tried putting the sim card in my Redmi Note 5 pro and set it to 2G mode , and it worked several times.
So can anyone provide a solution or if anyone can confirm whether they are facing this issue or not?
Click to expand...
Click to collapse
Hello, which carrier do you have? In my case i have Idea which fails to provide a 4g+ service in certain area/region followed by which you cannot call or receive calls on LTE/3g/2g. Try using a different sim card which has 4g+ service in your area/region.
Regards
Mandark52 said:
Hello, which carrier do you have? In my case i have Idea which fails to provide a 4g+ service in certain area/region followed by which you cannot call or receive calls on LTE/3g/2g. Try using a different sim card which has 4g+ service in your area/region.
Regards
Click to expand...
Click to collapse
I am using Airtel 4G. There is 4G in my region, the issue is I can call when its set to LTE (4G). But setting the network to 2G or 3G causes the issue. I tested the 2G and 3G in my Redmi Note 5 Pro and they are working in that phone so I believe it's not regional issue.
Anyway I will do a factory reset to check if it works(Tried settings reset and network reset. None of them resolved the issue).
subhad43 said:
I am using Airtel 4G. There is 4G in my region, the issue is I can call when its set to LTE (4G). But setting the network to 2G or 3G causes the issue. I tested the 2G and 3G in my Redmi Note 5 Pro and they are working in that phone so I believe it's not regional issue.
Anyway I will do a factory reset to check if it works(Tried settings reset and network reset. None of them resolved the issue).
Click to expand...
Click to collapse
I have the same combo and 2g calls works just fine.
Updated to the latest may patch.
mehra1 said:
I have the same combo and 2g calls works just fine.
Updated to the latest may patch.
Click to expand...
Click to collapse
I Did factory reset today. Its working fine now. Thanks for all the help

4G Suddenly became useless

Hello,
I am now having issue with my K20 Pro. I'm using 12.0.5 xiaomi eu
Not certain but possibly started after I upgraded to MIUI 12.
Issue is that the mobile data never works when signal is 4G/LTE.
Internet only works if you find a stable 4G+/LTE+ signal. The system would tend to constantly switch between 4G and 4G+.
Another option is to use 3G/H+ Preferred option. H+ works fine but as we all know this is the older network which means slower but decent data
I have read some solutions to delete and reset your APN. But it never works either. Also compared the network behavior between other phone like Oneplus 5T and it doesn't have the issue even using the same network and same location.
I'm not sure if this has been raised to Xiaomi directly. But I'm hoping there's a fix for this.
Thank you!!
peeweew said:
Hello,
I am now having issue with my K20 Pro. I'm using 12.0.5 xiaomi eu
Not certain but possibly started after I upgraded to MIUI 12.
Issue is that the mobile data never works when signal is 4G/LTE.
Internet only works if you find a stable 4G+/LTE+ signal. The system would tend to constantly switch between 4G and 4G+.
Another option is to use 3G/H+ Preferred option. H+ works fine but as we all know this is the older network which means slower but decent data
I have read some solutions to delete and reset your APN. But it never works either. Also compared the network behavior between other phone like Oneplus 5T and it doesn't have the issue even using the same network and same location.
I'm not sure if this has been raised to Xiaomi directly. But I'm hoping there's a fix for this.
Thank you!!
Click to expand...
Click to collapse
I dont know if its exactly the same issue I had , but I give you my solution , it might solve your problem as well :
1. download Activity Launcher from the playstore.
2. Open it and search "miuiBand"
3. Choose the network LTE band of your Operator(look it up in google) for example LTE B3 (if you use only 4G , look at LTE and not LTE Preffered)
4. Toggle Selection ON (Top).
Hope this solves your issue as it did mine.
urbanmec said:
I dont know if its exactly the same issue I had , but I give you my solution , it might solve your problem as well :
1. download Activity Launcher from the playstore.
2. Open it and search "miuiBand"
3. Choose the network LTE band of your Operator(look it up in google) for example LTE B3 (if you use only 4G , look at LTE and not LTE Preffered)
4. Toggle Selection ON (Top).
Hope this solves your issue as it did mine.
Click to expand...
Click to collapse
I have this. However, I can't understand why it suddenly changes reverts from time to time. Do you always take a look at it whenever connecting to Mobile Data?
As I also check in Network Cell Info Lite, phone still connects to the band causing the problem (Band 21)
peeweew said:
I have this. However, I can't understand why it suddenly changes reverts from time to time. Do you always take a look at it whenever connecting to Mobile Data?
As I also check in Network Cell Info Lite, phone still connects to the band causing the problem (Band 21)
Click to expand...
Click to collapse
When you get low coverage or restart the phone or get out of plane mode , your network settings go back to default (band will be chosen automatically), but forcing the prefered network type ,you will prevent this from happening (you will only have to worry about restarts /phone / modem).
Making the choice permanent IS possible with root (Check this Link : https://forum.xda-developers.com/ge...ific-network-bands-snapdragon-t3744243/amp/).
urbanmec said:
When you get low coverage or restart the phone or get out of plane mode , your network settings go back to default (band will be chosen automatically), but forcing the prefered network type ,you will prevent this from happening (you will only have to worry about restarts /phone / modem).
Making the choice permanent IS possible with root (Check this Link : https://forum.xda-developers.com/ge...ific-network-bands-snapdragon-t3744243/amp/).
Click to expand...
Click to collapse
Btw, I cannot get Network Signal Guru to work with Magisk v21.1 anymore
Mi 9T (not Pro), tried with EEA stock MIUI 12.0.3 and Xiaomi.eu stable 12.0.6.
Last time it worked for me on EEA 12.0.2 with Magisk v21.0
I tried now that Samsung Band Selection app., it complains that hidden activity is not found (on my Xiaomi.eu 12.0.6) and it cannot open band selection options
But I don't have a problem with bands, just curious to tesr the things?
Bought a Xiaomi Redmi note 9s last month for Christmas for myself.
It had MIUI 12.0.2 on it by default.
Played around with it for a whole month and everything was working perfectly...4g LTE included.
I don't have internet at home so I use my phone has a hotspot.
Average download speed was 60 megabits per second.
... Until I upgraded to 12.0.3, I then lost LTE and only connected using H+
So beware before upgrading because I have not found the solution yet other than flash with pixel experience ROM.
Edit :
Changing Network detection from automatic to manual fixed it !
My Redmi notes "global" phones 4 & 5 had to flash new ROM to unlock bands.
Hope this helps
I realised that this issue is most likely due to baseband limitation with our Network provider. Given that I'm using a China Variant, the basebands my phone is lacking needed basebands here in the Philippines. What I'm looking for now is a QPST guide for SD855 to activate at least base band 20. I can't find any that has enabled it thru QPST yet.

Mate 10 Pro GSM / 2g network connectivity issues

my mate 10 Pro (C185 UAE REGION) has suddenly lost GSM or 2g connectivity on both sims simultaneously. I connects fine on WCDMA & LTE (3g/4g), however when GSM (2g) is selected signals disappear with a cross (X) sign on both sim slots.
Software was updated last month in November - 20 to 10.0.0.180 with July-20security patch. I have hard rest the phone to factory settings, rest all network settings, taken the device to service center but nothing has helped so far.
Have also engaged with network providers and replaced old sim with new sim but issue still persists.
I used to keep phone on 2g or GSM to conserve battery & for coverage in remote areas where 3g/4g services are not available as I have to travel a lot because of the nature of my Job, but now I have to keep both sims on 4g at all times which affects battery adversely....
Could anyone out here please provide some solution.
Rgds
Also facing same problem here.. Any help from any one? Thanks

Network data on Samsung S20 FE 5G after Android 11 update

I updated my Samsung S20 FE 5G to latest firmware Android 11 via OTA. After update, the network data stopped working on sim1 tray. I can receive calls, send/receive text messages, but no network data. I reset network settings, made factory reset, it did not help. Strangely, when I insert same simcard into sim2 tray, the network data works fine. I did not have this issue before update.
Is anyone experiencing same issue and how to fix it?
This happened to mine but not always. Traced the problem today : LTE band 3 and 1 work fine, LTE band 20 no data (on Three UK). Pushing my phone to 3G/2G (network mode) and then switching it back to the original setting, in my case LTE/3G/2G fixed it (at least in the last hour or so anyway).
aaronje said:
This happened to mine but not always. Traced the problem today : LTE band 3 and 1 work fine, LTE band 20 no data (on Three UK). Pushing my phone to 3G/2G (network mode) and then switching it back to the original setting, in my case LTE/3G/2G fixed it (at least in the last hour or so anyway).
Click to expand...
Click to collapse
I am with Three UK too. After switching networks from 2G to 3G, then to LTE etc fixed my mobile data issue. However as soon as I travel to area where 5G works, the network data stops. It seems this update affects 5G modem and generally mobile data
It's since reoccurred on mine after restarting phone. Not a good sign for this update/S20 FE
Yep same issue also three UK hopefully there's a fix soon this update also broke my duelshock 4 contoller ability to work with phone,rubbish update
only issue ive had since the update was the one day of ridiculous battery drain, other than that, smooth sailing

Question Big issue, No Data during a call.

So One thing I discovered on this new phone of mine is that although working perfectly there is a major flaw in the way Internet data works during a phone call.
Any time you make a call, the phone downgrades the active signal from 5G/4G to H or E ( GSM).
Which in turns cuts off the data.
If I force 5G or 4G, then the phone call cannot be made. It just disconnects.
I have tried all settings, Volte enable/disable with no joy.
Some have said it's a carrier limitation, but it's not, cause in my iPhone, the very same simcard works just fine and the Internet is usable during a call.
Also tried with dual Simcard setup. As in the settings, the phone allows to use one simcard for data and one for call. Still not working.
Can someone please tell me if there is a solution please, or can you try your phone while on the call to see if Internet works as this feature is detrimental to me keeping the phone. If this doesn't work I will be selling the phone and getting a realme replacement.. Xiaomis sometimes suck with their non existent support.
Thanks
Evo400 said:
So One thing I discovered on this new phone of mine is that although working perfectly there is a major flaw in the way Internet data works during a phone call.
Any time you make a call, the phone downgrades the active signal from 5G/4G to H or E ( GSM).
Which in turns cuts off the data.
If I force 5G or 4G, then the phone call cannot be made. It just disconnects.
I have tried all settings, Volte enable/disable with no joy.
Some have said it's a carrier limitation, but it's not, cause in my iPhone, the very same simcard works just fine and the Internet is usable during a call.
Also tried with dual Simcard setup. As in the settings, the phone allows to use one simcard for data and one for call. Still not working.
Can someone please tell me if there is a solution please, or can you try your phone while on the call to see if Internet works as this feature is detrimental to me keeping the phone. If this doesn't work I will be selling the phone and getting a realme replacement.. Xiaomis sometimes suck with their non existent support.
Thanks
Click to expand...
Click to collapse
This comes from the operator who has not yet communicated with Xiaomi.
Same case with 2 operators on the same phone.
What version of rom?
NOSS8 said:
This comes from the operator who has not yet communicated with Xiaomi.
Same case with 2 operators on the same phone.
What version of rom?
Click to expand...
Click to collapse
Global ROM 13.0.4
I can't see an operator fault if they have Volte services enabled and this simcard works flawlessly on other android systems.
As a matter of fact, any SimCard i have tried, so far 3 providers and the phone does the same thing. As soonest the call is made it downgrades the signal to H while full 5G or 4G is available??
Evo400 said:
Global ROM 13.0.4
I can't see an operator fault if they have Volte services enabled and this simcard works flawlessly on other android systems.
As a matter of fact, any SimCard i have tried, so far 3 providers and the phone does the same thing. As soonest the call is made it downgrades the signal to H while full 5G or 4G is available??
Click to expand...
Click to collapse
the operator must provide the necessary information for each brand and phone to activate Volte and Wowifi.
On my 11t pro everything works with SFR and nothing with FREE because Free has not yet transmitted the information necessary to activate the services.
So went to see the operator. They sell Xiaomi phones. 3 network ( Three EU)
The phones in the stores are working just fine, no issues at all. And my phone simply just isnt.I have tried every possible setting and still not working.
See the screenshot below. As I'm typing this I'm on a super fast full signal 5G connection. As soon as I make a phone call, the phone will downgrade to E or H+ which is horrible. This network signal switching is also laggy, and If 2g signal is poor I cannot even make a call.
Evo400 said:
So went to see the operator. They sell Xiaomi phones. 3 network ( Three EU)
The phones in the stores are working just fine, no issues at all. And my phone simply just isnt.I have tried every possible setting and still not working.
See the screenshot below. As I'm typing this I'm on a super fast full signal 5G connection. As soon as I make a phone call, the phone will downgrade to E or H+ which is horrible. This network signal switching is also laggy, and If 2g signal is poor I cannot even make a call.
Click to expand...
Click to collapse
Does the "Use VoLTE" switch appear in the SIM card settings?
If not you can try the Dialer Code *#*#869434#*#*. That only will make this switch appear, but sometimes this is enough. It should also show the little VoLTE-Badge next to the signal strength (see screenshot).
Deleted
I just had another look and on your 1st post it says the SIM is named "3 IRL", as far as I know Three Ireland does not offer VoLTE at all.
So it will always drop to 3G/H+ or 2G/E ... on every phone.
mici01 said:
I just had another look and on your 1st post it says the SIM is named "3 IRL", as far as I know Three Ireland does not offer VoLTE at all.
So it will always drop to 3G/H+ or 2G/E ... on every phone.
Click to expand...
Click to collapse
5G connection should support this naturally. If I put this simcard Into an iPhone or Galaxy the 5G connection stays on regardless.
Anyway even with Vodafone this doesn't work,so I'm thinking it either a phone limitation or a phone is fooked
Evo400 said:
5G connection should support this naturally. If I put this simcard Into an iPhone or Galaxy the 5G connection stays on regardless.
Anyway even with Vodafone this doesn't work,so I'm thinking it either a phone limitation or a phone is fooked
Click to expand...
Click to collapse
No, for VoNR your phone still needs the same configs as with VoLTE. Though only a few operators support VoNR as of now.

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