SIM card doesn't work - ONE Q&A, Help & Troubleshooting

I have new OPO, with CM11 (was colorOS).
When i plugin sim card indicator dosn't show network range. After restrat indicator show full range.
When i take out sim indicato still show full range. And next restart and show correct (empty).
When i turn on network operator searching nothing...still searching.

Related

[Q] Dual SIM phone roaming / not roaming question

Hi
I have a Zopo ZP950+ with Etotalk ROM, from China, it is a 5.7inch Phablet running stock JB, with Quad Core and DUAL SIM.
http://www.etotalk.com/zopo-zp950-16g_p3854.html
I am in UK, with UK SIM installed (T-Mobile), so at moment not roaming, but phone constantly tells me I am roaming.
I want to use the full 3G/HDSPA connectivity so do not want to disable data.. Under Settings/More/Mobile Networks, there are no options for roaming settings to change, though there is a "data connection - off" option, but I don't want to turn data off, and the roaming warnings are intrusive when sending texts or making calls.
If I can''t "fix" the fact that Roaming indicator is constantly on, even though phone is not roaming, can I hide the warnings every time I make a call or send a text?
Any 3rd party apps out there to help?
Thanks
While I wait for an answer, I will add this: I just tried a giffgaff SIM using O2 network, all is fine, seems to be a problem only with T-Mobile SIM, called T-Mobile they said I needed a replacement SIM card, but this SIM is fine in 2 other un locked (though not Dual SIM) handsets.
guygamps said:
Hi
I have a Zopo ZP950+ with Etotalk ROM, from China, it is a 5.7inch Phablet running stock JB, with Quad Core and DUAL SIM.
http://www.etotalk.com/zopo-zp950-16g_p3854.html
I am in UK, with UK SIM installed (T-Mobile), so at moment not roaming, but phone constantly tells me I am roaming.
I want to use the full 3G/HDSPA connectivity so do not want to disable data.. Under Settings/More/Mobile Networks, there are no options for roaming settings to change, though there is a "data connection - off" option, but I don't want to turn data off, and the roaming warnings are intrusive when sending texts or making calls.
If I can''t "fix" the fact that Roaming indicator is constantly on, even though phone is not roaming, can I hide the warnings every time I make a call or send a text?
Any 3rd party apps out there to help?
Thanks
Click to expand...
Click to collapse
more, any help would be appreciated
guygamps said:
While I wait for an answer, I will add this: I just tried a giffgaff SIM using O2 network, all is fine, seems to be a problem only with T-Mobile SIM, called T-Mobile they said I needed a replacement SIM card, but this SIM is fine in 2 other un locked (though not Dual SIM) handsets.
Click to expand...
Click to collapse
Replaced SIM card doing same thing, constantly warning of roaming, only difference is signal strength bars are blue, whereas before they were orange.
guygamps said:
Replaced SIM card doing same thing, constantly warning of roaming, only difference is signal strength bars are blue, whereas before they were orange.
Click to expand...
Click to collapse
Hi there I have the same issue with my Star Note II N9599 and it too reverts to Roaming and I use Orange UKeven though its now part of EE Network UK but I did find out that the handset is actually Roaming! To check this go into Dial Pad and type *hash*hash3646633hash*hash* then goto Connectivity then down CDS Information the to Radio Information then to Phone 1 and you can see if the Sim in slot 1 is truely Roaming or Not?
I have yet to find a fix for this issue but did also stumble across my Associated Network Radio Bands as follows:
GSM MODE ( SIM TRAY 1 & 2 )
EGSM900 (selected)
DCS1800 (selected)
PCS1900 (selected)
GSM850 (selected)
UMTS MODE ( SIM TRAY 1 ONLY )
WCDMA-IMT-2000 (selected)
WCDMA-PCS-1900 (greyed out)
WCDMA-DCS-1800 (greyed out)
WCDMA-AWS-1700 (greyed out)
WCDMA-CLR-850 (selected)
WCDMA-800 (selected)
WCDMA-IMT-E-2600 (greyed out)
WCDMA-GSM-900 (greyed out)
WCDMA-1800 (greyed out)
WCDMA-1700 (greyed out)
Now at best guess I take it these settings are not correct for the U.K.
If this is so then which BANDS Do I Need and how do I go about changing the greyed out ones that I cannot select to be selected as a usable Radio Band?
I have looked as best I can on Google etc but Im all new to this and not entirely sure what to look for or how to do it if possible?
I have read other sites of users being able to change the Radio Bands for other types of Handsets so I know there must be a way?
I still have the issue where I can set my phone to Register on the Orange network and it connects and gives me 3G with Data but soon after the connection decides to reset to Roaming and drops Data unless I choose to select Data Roaming?

Connection type display bug on lock screen, other places

My phone network is Orange, and therefore EE, in the UK. (for non-Brits Orange is owned by EE so I should connect to the EE network). As you can see at the bottom of the attached image my Nexus 5 is showing a weird status message for the network I'm connected to. It says
Code:
EE - @@@@@@@@@@@@@@@@
That's 16 @'s!
These are the places I've seen it written like that:
Lock screen
Bottom of the notification drawer (when mobile data is turned on)
On the tile in the quick setting in the notif drawer.
I'm not sure what it's meant to be saying instead of the @'s. Maybe connection type? If I go into Settings>>About Phone>>Status It correctly says EE for Network and HSPA (or whatever else) for Mobile Network Type.
I should note that it is a brand new microsim and I followed my network's instructions for changing sim. I can receive and send calls, texts and data as normal and my old sim has been deactivated. So as far as I can tell this is a purely cosmetic bug, but it's friggen annoying to look at! My previous phone (Nexus S) never had anything weird like this.
Any ideas? Is it the phone or the microsim card? I've tried restarting it with and without the sim in

GSM / Network Signal bars grey / unavailable

Hey all, thanks in advance for any advice offered.
For some reason my Galaxy S8+ has a greyed out GSM signal bar with an 'x' next to it. As far as I remember the only thing I did was put it to charge overnight. I've tried removing the SIM, still grey, inserting another carrier's SIM (known to be working), still grey, my original SIM also works fine in another phone. Everything else not related to cell service works fine (wifi, bluetooth etc.). I can see the IMEI number in settings as usual.
I've tried resetting the network settings, factory resetting the phone, I've even reloaded the ROM via Odin. No joy.
The phone is pretty much stock, except for the fact that I changed the carrier software from AT&T to Verizon in order to use a particular LTE band. Since I did that, the phone worked fine for several months.
I've only noticed two things odd thus far. After reloading the ROM and downloading a few updates, a game (Empire) appeared from nowhere installed in my app drawer. Also, the Airplane mode icon in the notification shade is light blue, similar to when it's transitioning from off to on. Airplane mode seems to work though, because I can toggle it, and the wifi reacts as such.
I can't search network operators manually (says: Error while searching for networks), changing the network mode does nothing, and none of the secret dialing codes work either. They all say "Mobile network not available". With a SIM inserted, my SIM status menu says, Network: unknown, Signal strength: -113dBm 0 asu, Service state: Radio off.
Sorry if I'm long-winded, but I'd appreciate any assistance at all. Thanks again for taking the time to read.
I had the same issue and I replaced the daughterboard and antennas

REAPEARING ROAMING ICON

I have put a new sim card of different mobile phone carrier. It was working well in the former but this one shows roaming icon all the time. Tried to remove it by turning off, but still reappear. Pls help

Dual Sim Question

For those on dual sim, does data on the secondary sim ever get used. In Sim Card Mgr there is a toggle to use it during a phone call but other than that , say my primary data sim is poor, I wish it would use the one with the better connection automatically but I do not think this is an option
JeffATL said:
For those on dual sim, does data on the secondary sim ever get used. In Sim Card Mgr there is a toggle to use it during a phone call but other than that , say my primary data sim is poor, I wish it would use the one with the better connection automatically but I do not think this is an option
Click to expand...
Click to collapse
I have a Samsung Galaxy Note, SM-N986B/DS.
No, my experience is, you can't set data usage to automatically,
But why don't you just choose Sim2, for data usage.?
While back i had 2 x Sims in my device.
(One Sim is a just a data Sim, loaded with 10 gigs data each month )
The other Sim only had 1 gig data on it, each month .)
I set my preferences as follow in Sim Manager ......
Calls.... Sim 1
SMS.... Sim1
Data ( mobile)... Sim 2
Worked fine.
No issues.
If i switched my mobile data on it would
use Sim 2 data.
However,
I have since changed my setup.
Took second Sim out of phone,
as i experience
"more battery drain" (overnight )
than when i was using
only one sim and/or sd card.
Good luck.
willcor said:
I have a Samsung Galaxy Note, SM-N986B/DS.
No, my experience is, you can't set data usage to automatically,
But why don't you just choose Sim2, for data usage.?
While back i had 2 x Sims in my device.
(One Sim is a just a data Sim, loaded with 10 gigs data each month )
The other Sim only had 1 gig data on it, each month .)
I set my preferences as follow in Sim Manager ......
Calls.... Sim 1
SMS.... Sim1
Data ( mobile)... Sim 2
Worked fine.
No issues.
If i switched my mobile data on it would
use Sim 2 data.
However,
I have since changed my setup.
Took second Sim out of phone,
as i experience
"more battery drain" (overnight )
than when i was using
only one sim and/or sd card.
Good luck.
Click to expand...
Click to collapse
I have unlimited data with Visible on sim1. I have 2gb of T-Mobile on sim2. If I'm in a spot whereb Visible sucks, I want to switch to sim2
data
JeffATL said:
I have unlimited data with Visible on sim1. I have 2gb of T-Mobile on sim2. If I'm in a spot whereb Visible sucks, I want to switch to sim2
data
Click to expand...
Click to collapse
Yes ,it's was just the opposite situation for me ,where i had more data on Sim 2 .
However,overall i guess it never worried me, as i am 90% on wifi .
I also noticed ,more battery use age of keeping mobile data on ,than wifi.
I guess the only option left ,would be to manually, change to preferred data Sim .
As far as i can remember the best option ,
( when i had 2 Sims in my phone )
i would swipe down to expand phone quick settings
and my Sim preferences , showed ,just under the phone ,quick settings icons .
I would then long press on the preferred data Sim choice and change it there.
It was better than going all the way to Sim Manager .
Good luck
willcor said:
Yes ,it's was just the opposite situation for me ,where i had more data on Sim 2 .
However,overall i guess it never worried me, as i am 90% on wifi .
I also noticed ,more battery use age of keeping mobile data on ,than wifi.
I guess the only option left ,would be to manually, change to preferred data Sim .
As far as i can remember the best option ,
( when i had 2 Sims in my phone )
i would swipe down to expand phone quick settings
and my Sim preferences , showed ,just under the phone ,quick settings icons .
I would then long press on the preferred data Sim choice and change it there.
It was better than going all the way to Sim Manager .
Good luck
Click to expand...
Click to collapse
Hmmm, the battery thing is interesting. I've tried so hard to get dual sim, flashing TMB onto Unlocked but now the battery thing is a bummer. If that is what causing it. I just turned off 120 refresh rate to see if that improves battery
In Quick Settings I see where I can click on one of the sims on the top and it takes me to the sim card menu but I wish it were just a toggle instead of taking to the menu
JeffATL said:
? Hmmm, the battery thing is interesting. I've tried so hard to get dual sim, flashing TMB onto Unlocked but now the battery thing is a bummer. If that is what causing it. I just turned off 120 refresh rate to see if that improves battery
In Quick Settings I see where I can click on one of the sims on the top and it takes me to the sim card menu but I wish it were just a toggle instead of taking to the menu
Click to expand...
Click to collapse
Firstly,
Yes, only thing you can do
is "toggle" it manually, like you described.
Secondly,
with 2 x Sims in my phone
i found that my average "sleep" over night
was example......
+- 12 % battery drainage, over period of +-8/10 hours (sleep.)
Further the way i see it,
is that even with phone in
sleep mode, it still trying to get better signal reception.... x 2...? whilst
This i checked via Betterbattery app.
Secondly,
I am back on one sim.
My average sleep overnight is
8 % for 10/12 hours sleep.!
Bottom line,
It's your phone.
That battery diffs, is no big deal...
For me it was an irritating issue. thats all
If you happy with 2x sims
keep it that way!
Good luck
JeffATL said:
For those on dual sim, does data on the secondary sim ever get used. In Sim Card Mgr there is a toggle to use it during a phone call but other than that , say my primary data sim is poor, I wish it would use the one with the better connection automatically but I do not think this is an option
Click to expand...
Click to collapse
Previously, say I had Sim 1 for data and Sim 2 for calls and i got a call on Sim 2, then Sim 1 was unable to access data but this has now changed with N20U
If I understood this correctly then I think my device is different cos regardless of which Sim is primary or secondary, I have an option under settings>connections>mobile networks> allow all Sims to use data in calls, which I can toggle on or off. I have found selecting this allows the other sim to use data which was not possible in some earlier android versions.
william-johnson said:
Previously, say I had Sim 1 for data and Sim 2 for calls and i got a call on Sim 2, then Sim 1 was unable to access data but this has now changed with N20U
If I understood this correctly then I think my device is different cos regardless of which Sim is primary or secondary, I have an option under settings>connections>mobile networks> allow all Sims to use data in calls, which I can toggle on or off. I have found selecting this allows the other sim to use data which was not possible in some earlier android versions.
Click to expand...
Click to collapse
But not when I'm in a call. I needed to use data from my secondary sim because I was in a dead spot for first sim. I had to go to sim card menu in settings and change primary sim and then change it back eventually. I did use the shortcut from the pull down menu but I wish I had a toggle , ideally from Nova Launcher
I am interested to purchase a SM-N986B DS for my dual sim work/personal cell in the US near NYC. I have metro PCS and Verizon. Will this phone allow verizon to operate as the second sim? It would be a non-data sim. I know it is a GSM phone and not CDMA but also read that the LTE bands may be compatible at 4g/5g. Curious before I take the dip to buy and find out it won't work...

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