After few experiment upgrading using own customize ext rom,now my O2 EXEC can't get a signal from cell operator,when I use manual search the phone can detect a working operator but I can't get it to register to the network,it kept searching and searching.
I'm very frustated because I bought the phone at other country and there is no authorized sevice center in my localization.
Can someone know how to solve this problem because I've tried to upgraded it to every different ROMS I downloaded from the web but still I can't get it to register to the network.
Is this the hardware problem or software problem ? or is it the Simlock problem ? before this I have upgrade many times using different ROMS version and never have any problem with this.
Please Someone who have the know how Help me Out !!!!! many many thanks in advance.
Hi there
My DHD was originally locked on Orange UK.
I managed to Unlock (S ON) my HTC desire HD through it's Dev as the Ace kit has stopped working. I also installed a custom ROM (AOSPX 4.0.4) by flashing the boot image to the sd card.
I've changed the SIM to 3G and restarted the phone and wrote the unlocking code – network unlocked successfully.
Everything works fine (Wi-Fi) except the mobile network. (Error when searching for mobile network) Tried #*#*4636#*#* by switching off radio and when switching back on again it will ask me for the network unlocking code.
Also, when you restart the phone and on logging it will ask for the network unlocking code again and on every restart.
I've searched all over but did not find anything useful that relates to my problem. From what I read it could be the radio that needs flashing. Is there anyone out there that had this problem and how it can be resolved.
Any advice or link with relevant discussion will be highly appreciated.
Thank a million!
Hi everyone,
I have following problem. I bought used phone with cm10.2.1 installed. After one day i realized problem with hsdpa connection. I put my sim card into another phone and it was ok.Then I started reading about issue and realize it could be problem with IMEI.
I check my IMEI and it seems to be ok. I went back to stock rom using Odin but problem is still there. I think I can connect to BTS, but in my phone mobile network type is Unknown:0.
I don't live in US so i don't have Us sim card, but my friends also in my country with AT&T phone could get access to hsdpa. In my country hsdpa is on UMTS 2100
Is there any way that I can check if my efs is ok? Could it be problem with hardware or rather software?
I found solution posted by umar4u, he attached file to NV writer to repair 3g and 4g issue. Is it save? Can I brick my phone or "only" mess in my efs?
Problem was solved writing NV items. I don't know if I can delete post, so please delete my post
Hello! I have one issue with my xolo q1010i.
I mistakenly formatted my IMEI by SP Tool or by while changing ROM. With the help of MAUI META 3G software, I am able to get back the signal. But when I changed the Network Mode from settings to "WCDMA only", it cannot detect signal anymore which was used to be applied before. And even unable to enter in engineer mode from *#*#3646633#*#* from both JB and KK. Even mobile uncle tools did not detect the engineer mode. But through Xposed framework - gravity box, i am able to enter engineer mode, but nothing to do with it. I think my device lost the 3G band..anyone got experience about it?? I will be very grateful
Your sim might not be support cdma unless it's postpaid I guess
Reconfigured said:
Your sim might not be support cdma unless it's postpaid I guess
Click to expand...
Click to collapse
I did not say CDMA, its "WCDMA" which is 3G only. This is because while flashing with SP Flashtool, I wipe all the IMEI but thankfully get back those IMEI with MAUIMeta 3G by Mtk. But still some error is there, may be a baseband error because when I switch the network to "WCDMA Only" it cannot get any signal at all which is used to be working before. This means that there is some issue with 3G, I found one link, how to fix 3G issue here --> www[/url][dot]chinaphonearena[dot]com/forum/Thread-Tutorial-3G-fix but this is for a specific device (Zopo ZP810) that it provides .ini file which will fix the error - it is named as ZP810.ini. But I did not find this ini file for my xolo q1010i or for mt6582..can you try helping me ASAP
same here!!
hruaiapunte said:
I did not say CDMA, its "WCDMA" which is 3G only. This is because while flashing with SP Flashtool, I wipe all the IMEI but thankfully get back those IMEI with MAUIMeta 3G by Mtk. But still some error is there, may be a baseband error because when I switch the network to "WCDMA Only" it cannot get any signal at all which is used to be working before. This means that there is some issue with 3G, I found one link, how to fix 3G issue here --> www[/url][dot]chinaphonearena[dot]com/forum/Thread-Tutorial-3G-fix but this is for a specific device (Zopo ZP810) that it provides .ini file which will fix the error - it is named as ZP810.ini. But I did not find this ini file for my xolo q1010i or for mt6582..can you try helping me ASAP
Click to expand...
Click to collapse
Even I'm facing the same issue after flashing the s5 custom rom for Xolo q1010i.. But I din do any format in the sp flashtool.. I Don think its imei problem.. Coz if it is so then u should have not got any signal only..
no its not signal problem its because of format in sp flash tool
its can be ready
am in a proccessto restore
contaqct me in [email protected],com for more details
guys i am using htc desire 816 dual sim
yesterday i while changing network type from *#*#4636#*#*
i changed radio band ,i selected USA band .
from that moment device is not detecting any network,
after manually searching network screen remains blank.
i tried selecting other radio bands from the same list but no use
i dont want to root or flash my phone,
i am using Airtel gsm card mumbai circle.
attached file-details of phone
Is there any solution for above .Plse help asap
htcdesire816 said:
guys i am using htc desire 816 dual sim
yesterday i while changing network type from *#*#4636#*#*
i changed radio band ,i selected USA band .
from that moment device is not detecting any network,
after manually searching network screen remains blank.
i tried selecting other radio bands from the same list but no use
i dont want to root or flash my phone,
i am using Airtel gsm card mumbai circle.
attached file-details of phone
Is there any solution for above .Plse help asap
Click to expand...
Click to collapse
You will need to flash a radio/baseband that matches your cid. Mismatched radio baseband can cause all connectivity to fail. If you don't want to modify your phone, that's your only option. Sorry.
htcdesire816 said:
guys i am using htc desire 816 dual sim
yesterday i while changing network type from *#*#4636#*#*
i changed radio band ,i selected USA band .
from that moment device is not detecting any network,
after manually searching network screen remains blank.
i tried selecting other radio bands from the same list but no use
i dont want to root or flash my phone,
i am using Airtel gsm card mumbai circle.
attached file-details of phone
Is there any solution for above .Plse help asap
Click to expand...
Click to collapse
Flash cyanogenmod, do the baseband change again. Switch to automatic. Only cyanogenmod has the automatic network selection option. Stock rom don't have.
This is the only way as I also experienced the same.
problem solve without rooting and flashing
Guys thx for rply
.....i hard resetd phone.....put my sim in other cellphone & operatd for 1 day as i was not having time for doing R&D on htc
On second day before going to htc service centre i put sim in it ...changed radioband to USA and selectd GSM only network mode......surprisingly it detectd airtel network
htcdesire816 said:
Guys thx for rply
.....i hard resetd phone.....put my sim in other cellphone & operatd for 1 day as i was not having time for doing R&D on htc
On second day before going to htc service centre i put sim in it ...changed radioband to USA and selectd GSM only network mode......surprisingly it detectd airtel network
Click to expand...
Click to collapse
That's great... I got f****d up doing the same.
htcdesire816 said:
Guys thx for rply
.....i hard resetd phone.....put my sim in other cellphone & operatd for 1 day as i was not having time for doing R&D on htc
On second day before going to htc service centre i put sim in it ...changed radioband to USA and selectd GSM only network mode......surprisingly it detectd airtel network
Click to expand...
Click to collapse
Please help me same problem i m facing i need your help.. i changed slot 1 settings in *#*#*4636#*#* three months ago then network gone.. from that day i m using my sim in slot 2 and slot 1 is not detecting network. I tried changing settings those settings again also done hard reset but not working
HTC Desire 816 Dual SIM-India, Both SIM not working after flashing CM-12, flashed official L firmware but still not working, tried above fix but still problem is there. If any one got the solution then please let me inform.
same trouble please help
I am having the same problem, until now i can not use my htc desire 816 slot 1, no network /mmi code invalid, band select stuck USA Band, please anyone can help, what shoul i do
may be you can send radio band recovery for flashing, change to other dev rom (cynogen mod or else) or other else to do that can make my HTc slot 1 back to its baseband frequencies.
_________________________
Solved
_________________________
Cyonagen mod fix his problem, change band to automatic.
I am also facing same problem, pls help if your issue has revolved… Rafique 8080345680
anything which can help in the same matter?
Solution .
htcdesire816 said:
guys i am using htc desire 816 dual sim
yesterday i while changing network type from *#*#4636#*#*
i changed radio band ,i selected USA band .
from that moment device is not detecting any network,
after manually searching network screen remains blank.
i tried selecting other radio bands from the same list but no use
i dont want to root or flash my phone,
i am using Airtel gsm card mumbai circle.
attached file-details of phone
Is there any solution for above .Plse help asap
Click to expand...
Click to collapse
.
I have a oneplus two and went through the same problem . I read a lot of threads on various sites and found that this question remains unanswered. Very disappointing .I was tinkering just to find something to make my sim work . Fortunately ,I found the fix.Its very easy and a person like me who doesn't even know how to root a phone can solve this problem .
Solution.
Wipe data and cache.
Download the latest stock ROM available and flash it .
Type *#*#4636#*#*. Go in phone information.Open options . Select radio band 40. Just don't select USA.
Download Shortcut Manager lite.
Search engineering mode.(search 'eng')
Scroll down to find
com.android.engineeringmode.network.BandMode
And
com.android.engineeringmode.network.BandMode2.
Find 'Auto' option after opening one of the bandmodes.
The sim should start working.
If the sim doesn't start working , change band and reselect Auto . This should do.
PS. If u don't have any other radio band than USA then try these repairs on USA band . Hope it works. If this works please share this info on other sites and help people.
Cheers !
Anyone found any solution, I am facing same problem after changing radio band from phone test menu.
Please help
I fixed the problem in my oneplus2.. Its very easy
Download shortcut master(lite).Click on the menu and select search.
Search "Engineer"
Open and launch "com.android.engineeringmode.EngineeringMode"
Select " Network Set"
Select "band mode"
Select "Hardware Default(Foreign)"
Thats all...
You network will be back to normal in a second
Arun NK said:
I fixed the problem in my oneplus2.. Its very easy
Download shortcut master(lite).Click on the menu and select search.
Search "Engineer"
Open and launch "com.android.engineeringmode.EngineeringMode"
Select " Network Set"
Select "band mode"
Select "Hardware Default(Foreign)"
Thats all...
You network will be back to normal in a second
Click to expand...
Click to collapse
Doesn't work and fails. What do I do now ? My sim won't get detected. I already did a hard reset and still nothing.
Radio Band problem solved without flash or data loss
Hi frndz, sorry i am so late with solution but it workd on my htc 816 dual sim,
1st need to insert 2g/3g sim in ur sim slot 1
Sim slot2 remain empty,
Now restart htc 816, and go to radio band option by *#*#4636#*#* then phone info then radioband
And finally CELLULAR 800Mhz
Now direct restart mob
Its done, hope u r back
Thnks
Did anybody tried in "backup and reset", the button "network reset" ?
Am facing the same problem but with D816w, you see, my device is a Vietnam source (HTC_059) and after receiving the Android 6 update I lost my IMEI numbers due to Unkown Baseband, after some research I did find Android 5 Firmware which is compatible with my CID, I have restored my Baseband with IMEI along but with no Coverage, when i go to *#*#4636#*#* am only left with Automatic band , NO USA No Europ No African or even ASIA,
My device is rooted but with S-ON , anyone can help me with that?