Hello everybody,
I have a carrier unlocked Xperia Arc. I had flashed .58 firmware, which I had rooted with Zegrush method (bootloader is locked). It was working fine for a few days, then suddenly the 3G stopped working. I am still getting the EDGE (2G) data transfer.
Since my SIM when inserted into my friends Samsung i9003 was giving a good 3G connection and also my friends SIM when inserted into my Xperia Arc was unable to connect through 3G, I thought that the fault was in my Xperia Arc only.
I have
1) Checked APN settings, they are fine. Downloaded and installed them again to be doubly sure.
2) Did a soft reset
3) Did a hard reset
4) Used repair through PC companion
5) flashed .62 firmware with accompanying baseband
6) flashed .42 firmware with accompanying baseband
7) checked network mode. Its WCDMA(preferred)/GSM. On switching to WCDMA, the 3G connection works for a few minutes and then the whole connection drops.
8) I read in some discussion boards that a similar problem arises if the SIM card lock is used but I am not using it.
Is it a hardware defect? Should I unlock the bootloader and flash one of the custom ROMS?
Any other suggestions?
Please help.
Thanking in advance.
call your network provider and say your problem, if they cant solve your problem or says everything is ok then contact sony ericsson repair center.
Hi,
I have a Sony Xperia S LT26i that was working fine up to a few weeks ago. I have accumulated a lot of junk on the phone and wanted a clear out so I did a master reset. After the phone rebooted, it comes up NO SIM card and the signal bar has a red X on it.
I tried a number of SIMs all with the same problem (and all work in other phones) so decided to contact Sony. They told me that the phone is actually for the hong kong market based on its IMEI and not for sale in the UK, where I am. The phone was brought second hand from eBay (and of course the guy I brought it from isnt responding).
I then decided to flash the UK firmware onto the phone. I always did wonder why English was miles down the language list! That worked just fine, but the same problem.
I then thought I would try a mod rom to see if I could get any more info. Unlocked booted loader and installed cyanogenmod. That all worked, but still no network. If I go to the search network setting it just says "An error occurred searching for networks, try again later".
Service menu -> SIM lock shows
[] network 0
[] network subset 0
[] service provider 0
[] corp 0
[] SIM 0
Can anyone help? Is this some kind of hardware failure and the fact it happened just after a reset purely coincidental or have I inadvertently removed some vodo magic added to the phone to get it working on UK networks from hong kong?
Thanks
you have problem with the simlock it's not unlock official
soufienew said:
you have problem with the simlock it's not unlock official
Click to expand...
Click to collapse
OK... Thanks. Any idea on how to resolve that? Or at least find out what network it was originally locked to so I can try and unlock it?
Need help. I need Stock ROM Xperia S LT26i Vodafone Australia. I bought my Xperia S outside Australia and has no "network unlock" prompt. I have checked the imei, it is not stolen nor lost. I have tried several generic stock rom in any version (gingerbread, ics, or jellybean) but the network can't be used. Also, I have tried CM10 for Locked Bootloader but still no network.
The sim card slot is good I think, since it cant prompt for sim card pin lock. The antenna is also good I think, if I search network in setting, it can detect some network but no home icon and can't register to any network.
I have checked SERVICE INFO *#*#SERVICE#*#*, on SIM LOCK, on some ROMs it becomes no "X" (just empty all "[]"), and on other ROMs it becomes all "?".
So, the problem is unusable network, and there is no any prompt to enter network unlock code. And I think flashing stock ROM maybe solve the problem.
I am sorry for bad english.
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?
I have successfully unlocked my bootloader and rooted my mzp but now I'm facing network problem IMEI is perfect and phone detecting sim also but no network when check *#*#4636#*#* radio info it shows radio off and i can't turn it on plz help
Is it software problem or hardware
And if it is software any solution for this
Plz help I'm noob
Let it install the carrier services app update from the play store. That helped me when I had the same issue.
[email protected] said:
I have successfully unlocked my bootloader and rooted my mzp but now I'm facing network problem IMEI is perfect and phone detecting sim also but no network when check *#*#4636#*#* radio info it shows radio off and i can't turn it on plz help
Is it software problem or hardware
And if it is software any solution for this
Plz help I'm noob
Click to expand...
Click to collapse
Have you touched anything inside your fsg partition? Same thing happened to me when I tried to enable the second SIM of my phone and messed with the files inside that partition.
Also, put your phone in fastboot mode and check if under the bootloader version it says Baseband: null
I have updated all apps including carrier services but no help and i haven't change any partition or any kind of changes and in files in last 2 days I have tried to update Oreo but after update problem not solved then I downgrade to nougat after that same no network then downgraded to marshmallow but not success same no network IMEI is perfect baseband is perfect only showing mobile radio power off otherwise everything perfect WiFi Bluetooth mods everything is this any hardware problem bcoz I have changed my display and when pack device thereafter no network