I had inadvertently flashed redmi 4x Global with the Chinese version of the firmware. After that, the network doesn't work. If anyone can help with the recovery, I would be grateful. I will answer all questions.
Network issue probably due to conflict with your network carrier frequency and roms frequency. kindly check with network and rom and set it manually.
check if IMEI number showing if not then IMEI broken and you'll need to restore it.
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Ok a friend of mine brought me a i9305 lte to unlock as i have done several of my firends. so i did these steps
1. made a back up from QPST
2. Cf auto rooted
3. installed custom recovery
4. downgraded to 4.1.1
5. did the network unlock from service menu
i then put my sim card in but kept getting not registered on network. i tried setting service provider to auto and also selecting manually and it does the same but no longer asks for sim unlock code so i assume its now unlocked and has some other problem. i thought it may be a imei issue and checked but the imei is fully there and matches the one behind phone batter it also has the correct baseband.. i checked in the about phone menu and it says network unknown and out of service. thinking it may be a radio issue i proceeded to install a stock 4.3 that was originally on the phone from the network carrier it was originally locked to, to see if it was a radio problem but again get network unknown. so i restored the QPST backup over the stock 4.3 and it still says network unknown.
I am starting to think the phone may be blocked but not sure as i also hear its a common problem to lose imei and / or service during rooting. Am i missing something pbvious or fighting a losing battle lol..
one other thing of slight note is when i went to sammobile for the stock rom, when i was searching i searched for i9305 as thats whats on the sticker but it has a little badge on the back that says LTE which according to sammobile is the i9305N and i9350T.
thanks for taking the time to read this and the help you guys allways offer :good::good::good:
Hello Friends,
I am from India and I use Airtel Carrier which has following frequency Bands
GSM-900/1800 (EDGE) -- Working fine
2100 MHz UMTS, HSPA+ -- Not working
2300 MHz TD-LTE -- Not working
I am using rooted Galaxy GT-I9305T and running Latest Cyanogenmod official ROM 4.4.4.
I only able to servive on 2G band (EDGE), I am not able to search any 3G or 4G frequencies here.
I search many forums, threads to resolve this issue and I found couple tricks using *# on keypad but nothing works.
I have no Idea how to make work my phone on 3g or 4g band. Does anyone able to solve this issue here. Please let me know.
Thank You,
Regards,
Sajjad Hussaini
Please anyone who can help me...
This is issue can be fixed at ROM or Kernal level or hardware level ???
Also, I guess my phone is locked at 1800 Mhz as Australian network Telestra, I don't know. As nothing mentioned. when I start the phone it shows only I9305
sajjadhussaini said:
Please anyone who can help me...
This is issue can be fixed at ROM or Kernal level or hardware level ???
Also, I guess my phone is locked at 1800 Mhz as Australian network Telestra, I don't know. As nothing mentioned. when I start the phone it shows only I9305
Click to expand...
Click to collapse
as far as i know the bands are hardwared. You cant change them with program. No idea why 3g wont work. Try installing stock rom and then test it. Dont think kernel has anything to do with it, kernel is conencted to cpu. As i said ,try stock rom with odin, that usualy works. Then install cm again.
4G issue
klemen241 said:
as far as i know the bands are hardwared. You cant change them with program. No idea why 3g wont work. Try installing stock rom and then test it. Dont think kernel has anything to do with it, kernel is conencted to cpu. As i said ,try stock rom with odin, that usualy works. Then install cm again.
Click to expand...
Click to collapse
You might need to go to samsung repair centre and check it out. I had a prepaid sim card and the carrier with who i was with back then they only had 3G. Until I change carrier who had 4G service I was still getting 3G. After calling support here and their, got my phone checked and it was a hardware problem, lucky it was still under the 2year warranty. I contacted samsung and handed over my phone the repair centre and finally my 4G had worked.
Urgent Need Assistance,
I unfortunately updated the modem from below xda link
http://forum.xda-developers.com/galaxy-s3/help/downgrading-4-3-to-4-2-1-network-issue-t2531221
I installed the Patched MG4 Modem into my I9305 which one of the person had shown I9305 thread, thing that It will fix my problem.
I happen to loose my IMEI number, I have a backup in Phiz recovery, it is also not working when trying to restore.
and also I have backup using the EFS Professional v2.0. Now the problem is.. At current situation I am not able to connect to my PC using my phone
as it is showing driver no found for " Qualcomm CDMA Technologies MSM" in my Windows 8 device manager. I have installed all the drivers using of Samsung including Kies and Kies3.
Please can anyone help me to fix this issue. I NEED MY IMEI no back. I have backup in my laptop and also made an EFC backup in mobile using Phiz recovery.
Only if am able to install that driver I can get into my ADB Server. Please help me
Hello Mi users. Its been two days since I haven't been able to use my Mi3. I flashed MIUI 8 Global beta rom via TWRP. The flashing was successful but i lost my IMEI no. and baseband. I need help. Please tell me what can i do. I figured a way by changing others .qcn file. I request all Mi3 users out there please send me .qcn of (imei) your handset . I'll ofcourse alter the file and use my own imei collected from the retail box. PM me I'll tell you how to backup your imei (i.e. a .qcn file). PLEASE HELP ME..
Guys, who can help?
Bought a MI5 from China (I'm brazilian), updated to MiUI 9 then suddenly it stopped working both Sims.
Sim 2 doesn't connect no matter what I do. Sims recognizes carrier but zero signal and only LTE (as screenshot). When I try to call some, it says that it's not possible. Details: Sim1 only get LTE if I'm connected to Wi-Fi, otherwise it's no service as sim2.
Did research here and
> Both IMEIs are working, appearing in *#06* and are the same on the box
> Gone to carrier and there's NO imei block
> Tried to flash, downgrade, upgrade from to every version available in the MiUI download section (tried China too, no sucess)
> Did hard reset
> Flashed only modem files from a stable room (tried with dev too)
> Tried *#*#4636#* options, leaving Sim1 as LTE/WCDMA and Sim2 WCDMA preferred and nothing
> Tried too to restore efs partition but I did not had a backup so I don't think it's gonna work. And I don't think thats the problem too once both imeis appear and baseband OK.
Used QPST but it didn't worked
I don't know what to do anymore. Can you guys give some light?
Thanks in advance
I would post imgs but I'm new user and can't,
Hi
I got 100% same problem.I tried different versions of ROMs,firmware,modem.and nothing! once I was able to call,and recieve 1 sms.thats all. I cant understand what to do..
I updated my phone from miui 9 to miui 10beta....after few days cellular data is not working...signals are not shown....but when I connect to a WiFi network... cellular signals are shown.....but still I can't make calls...can anyone help me... please..
Try reinserting sim/restarting your device.
If possible try using different Carrier sim to check if this issue persist on your current network carrier or it is bug with miui.
Try changing apn for mobile data.
Try changing preferred network.
Are facing this issue in all areas or it is for specific area? If you are not getting network anywhere then it could be possibly sim card issue or miui beta ROM has network bug with update that you are using.
Also check if IMEI number is showing or not?
metelhammer said:
Try reinserting sim/restarting your device.
If possible try using different Carrier sim to check if this issue persist on your current network carrier or it is bug with miui.
Try changing apn for mobile data.
Try changing preferred network.
Are facing this issue in all areas or it is for specific area? If you are not getting network anywhere then it could be possibly sim card issue or miui beta ROM has network bug with update that you are using.
Also check if IMEI number is showing or not?
Click to expand...
Click to collapse
I changed rom..flashed fastboot rom..no imei issues.... still the same problem
harilal1080 said:
I changed rom..flashed fastboot rom..no imei issues.... still the same problem
Click to expand...
Click to collapse
I don't know other than above I've mentioned things what could possibly causing this issue.
same problem,,,ntwrk nhi aa rha h kal hi update maara tha maine aur kalse ntwrk prblm ho rha h