Hello,
I've got a fake Xiaomi Redmi Note which has in fact a MTK6572 SOC on Android 4.2.2.
The problem is with one of the SIMs I use: in slot no.1 (WCDMA; unfortunately slot no.2 is GSM only) one of the SIMs behaves odd - when I put the SIMs in, the battery and start the phone - 3G internet works, but if I turn mobile data off and then want to start it again it's not coming back.
However, if I change the SIMs between themselves - the other SIM works fine when toggling mobile data ON/OFF.
The only solution to make mobile data available from that certain SIM is to factory reset the phone or swap twice the SIMs!
I would appreciate any advice.
Thanks!
Hello,
I know i may be posting about Custom ROM in wrong section, but being a new member am not allowed to make post in Development thread.
Regarding issue, I installed Cyanogenmod 12.1 Build 17 ROM Yesterday. All went well. But am facing an issue with Data Connection
Am Using Reliance SIM Card and since am mostly on roaming and Reliance does not have 3g services in my roam location, i select Tata Docomo netwok for using 3G Data services. However after installing the New ROM, though am able to select Tata Docomo Network and make calls with same, Data does not work with it. To be clear i have Data Roaming On and am able to use 2G Data on Reliance Network.
I tried manually changing APN but it did not work either. Is it the bug with the ROM or am i missing something? May sound silly but is there any way to force start Data?
Note: Tata Docomo does have 3G issues. If 3G gets disconnected, you have to refresh network selecting either Docomo 2g or Reliance 2g network and then again selecting Docomo 3G. This method works with 100% hit Ration on stock ROM and even other devices like Micromax. Tried the same, but never worked on CM12.1
My Mediapad x1 Model 7D-501u was working fine for more than a year now, but one time suddenly it booted to the safe mode and stopped registering to Mobile Networks, I have changed the ROM several times but still can't get signal from the operator, I have checked the SIM with different phones and it works fine, and I have checked with another operator SIM, but same problem exist any one have any Idea what is the Problem?
The Phone can detect the SIM if I enter or remove it, the device can detect the networks but can't register to any of the Mobile Networks.
It would be great if any one could help me
Thank you all
are you on kitkat? yes. lollipop is stable (wifi)
Hi all, I recently got a weird and strange issue out of the blue 2 days ago. No update/changes made just before issue, no playstore update done too for at least 4 days before issue popped up.
Sim Slot 1: Airtel 4G
Sim Slot 2: Idea GSM
Android Version: 6.0 (Moto's OTA official release)
Baseband Version: M8916_2020629.41.03.21.51R SURNIA_EMEA_DSDS_CUST
Kernel Version: 3.10.49-g4979ca4 [email protected] #1
System Version: 24.51.39_SURNIA_retasia_ds.retasia all.en.03 retin
Build Number: MPI24.65-39
Unrooted and Locked bootloader
Issue: 1 SIM doesn't connect to network
1. Airtel was receiving 4G signals without any problem for weeks, however 3 weeks ago, it showed only "H" which is fine with me and working decently well.
2. Was watching a YouTube video, the Airtel network on SIM Slot 1 goes off. Searched for network, gets message "Error while searching for network", Idea on SIM Slot 2 works fine.
3. Airtel SIM is fine, both SIM Slots on Moto E2 are fine. Tested different combinations with my other SIMs and handsets.
4. Did airplane mode few times, no go, did radio turn off and on in *#*#4636#*#* . Gets lag there. Turns off on touchwiz but inside 4636 still shows on button to turn " off" radio, also selected LTE/GSM(PRL) in preferred network ther.
Played a little and found 2 temporary workarounds.
Workaround 1 : (Fixes problem for 5 minutes or so)
Disable SIM in Slot 1, Switch mobile data to Slot 2, enable SIM in Slot 1, gets network, switch mobile data to Slot 1, gets "H"... Slot 1 at "4G recommended" by default, 5 minutes later, network goes off. Search for network, mostly get "Error searching for network", randomly, Slot 1 detects Airtel network, when connected, says " SIM doesn't allow connection to this network", back to square one...
Workaround 2: (Has been fine for past half hour while I am typing the issue here using the problematic connection)
Set Slot 1 to 3G as soon as it gets working network with working 3G, after doing exact same steps as in Workaround 1.
To be noted: 4G/3G Airtel Network is fine in area, Airtel SIM is fine, SIM Slots are fine, other Idea SIM in Slot 2 doesn't show any problem at all and connects to internet too just fine on EDGE ( as it's a 3 yr old sim) , numerous restarts done, app cache cleared.
I am a Noobie, so please bear with me, I posted all the relevant details I could think of, as detailed as possible. Phone is 2 months old only, came with lollipop, upgraded to marshmallow through Moto's OTA update, never rooted or played around with ever.
This is driving me crazy, I could logically only think of some problem in the OS causing this issue without any warning or apparent reason... Tried different forums, no one posted about facing similar issue in India anywhere yet.
Shwetank Shukla said:
Hi all, I recently got a weird and strange issue out of the blue 2 days ago. No update/changes made just before issue, no playstore update done too for at least 4 days before issue popped up.
Sim Slot 1: Airtel 4G
Sim Slot 2: Idea GSM
Android Version: 6.0 (Moto's OTA official release)
Baseband Version: M8916_2020629.41.03.21.51R SURNIA_EMEA_DSDS_CUST
Kernel Version: 3.10.49-g4979ca4 [email protected] #1
System Version: 24.51.39_SURNIA_retasia_ds.retasia all.en.03 retin
Build Number: MPI24.65-39
Unrooted and Locked bootloader
Issue: 1 SIM doesn't connect to network
1. Airtel was receiving 4G signals without any problem for weeks, however 3 weeks ago, it showed only "H" which is fine with me and working decently well.
2. Was watching a YouTube video, the Airtel network on SIM Slot 1 goes off. Searched for network, gets message "Error while searching for network", Idea on SIM Slot 2 works fine.
3. Airtel SIM is fine, both SIM Slots on Moto E2 are fine. Tested different combinations with my other SIMs and handsets.
4. Did airplane mode few times, no go, did radio turn off and on in *#*#4636#*#* . Gets lag there. Turns off on touchwiz but inside 4636 still shows on button to turn " off" radio, also selected LTE/GSM(PRL) in preferred network ther.
Played a little and found 2 temporary workarounds.
Workaround 1 : (Fixes problem for 5 minutes or so)
Disable SIM in Slot 1, Switch mobile data to Slot 2, enable SIM in Slot 1, gets network, switch mobile data to Slot 1, gets "H"... Slot 1 at "4G recommended" by default, 5 minutes later, network goes off. Search for network, mostly get "Error searching for network", randomly, Slot 1 detects Airtel network, when connected, says " SIM doesn't allow connection to this network", back to square one...
Workaround 2: (Has been fine for past half hour while I am typing the issue here using the problematic connection)
Set Slot 1 to 3G as soon as it gets working network with working 3G, after doing exact same steps as in Workaround 1.
To be noted: 4G/3G Airtel Network is fine in area, Airtel SIM is fine, SIM Slots are fine, other Idea SIM in Slot 2 doesn't show any problem at all and connects to internet too just fine on EDGE ( as it's a 3 yr old sim) , numerous restarts done, app cache cleared.
I am a Noobie, so please bear with me, I posted all the relevant details I could think of, as detailed as possible. Phone is 2 months old only, came with lollipop, upgraded to marshmallow through Moto's OTA update, never rooted or played around with ever.
This is driving me crazy, I could logically only think of some problem in the OS causing this issue without any warning or apparent reason... Tried different forums, no one posted about facing similar issue in India anywhere yet.
Click to expand...
Click to collapse
I haven't seen this issue on my phone either. I have the Indian 4G Variant as well (XT1521). I would Recommend u to go to recovery mode and wipe data and cache (This should completely erase ur phone and hopefully fix ur issue). If this doesn't work I'd recommend u try and unlock ur bootloader and flash CM13 and test if this issue persists. If this issue persists I believe it's a hardware problem. Don't worry unlocking ur bootloader will void warranty but relocking it is extremely easy which will prevent ur warranty from being void.
Best of luck[emoji2] [emoji2]
Sent from my XT1521 using Tapatalk
Thank you for suggestions
Hi All,
Just to update, my workaround 2 has been working so far without any problem for the past 1 week, I can put airplane mode on and off and it comes back, I restart too and get proper network on both sims and the 3G mobile network of Airtel. Scared of putting recommended network as 4G for Airtel or playing around with it more for now fearing I may lose it again. If I have to do in future, I'll post the outcome..... :laugh:
I've wiped the cache though from recovery mode as suggested... don't know if it changed anything... Also did all playstore updates without problem.
Shwetank Shukla said:
Hi All,
Just to update, my workaround 2 has been working so far without any problem for the past 1 week, I can put airplane mode on and off and it comes back, I restart too and get proper network on both sims and the 3G mobile network of Airtel. Scared of putting recommended network as 4G for Airtel or playing around with it more for now fearing I may lose it again. If I have to do in future, I'll post the outcome.....[emoji23]
I've wiped the cache though from recovery mode as suggested... don't know if it changed anything... Also did all playstore updates without problem.
Click to expand...
Click to collapse
If u don't mind try and completely wipe ur phone from the recovery
Sent from my XT1521 using Tapatalk
Hi, I was just in Chile and purchased a note 3 pro and as soon as I slide my sim card (from a Chilean carrier) everything works just fine. Data, 4g, calling, no problem.
But when I returned home (Venezuela) and put my Venezuelan sim card , it picks up the carrier fine and I can call and send text sms, but no mobile data of any kind, of course I checked the phone supports my 4g bands (band 3-1800 begin one of them), and I have tried everything in the APN settings menus and still no data or 4g. Any ideas? Might be a software issue? I'm running latest MIUI global stable release but I intend to flash custom ROMs.
reset APN. anyway, there is a bug that you have to turn on/off airplane mode to activate the mobile data. happened to me twice since I bought this phone a month ago.
cjvzla said:
Hi, I was just in Chile and purchased a note 3 pro and as soon as I slide my sim card (from a Chilean carrier) everything works just fine. Data, 4g, calling, no problem.
But when I returned home (Venezuela) and put my Venezuelan sim card , it picks up the carrier fine and I can call and send text sms, but no mobile data of any kind, of course I checked the phone supports my 4g bands (band 3-1800 begin one of them), and I have tried everything in the APN settings menus and still no data or 4g. Any ideas? Might be a software issue? I'm running latest MIUI global stable release but I intend to flash custom ROMs.
Click to expand...
Click to collapse
Did you try manually writing the APN?
Sent from my Xiaomi Mi 5 using XDA Labs