[Q] Diamond suddenly lost GSM signal HELP! - Touch Diamond, MDA Compact IV General

Hi!
For 3 days i have a problem with GSM signal...
It started, when during the call it just interrpupted it and went to home screen with no reason.
From this moment it's permanently looking for a signal - no resets or switching airplane mode on and off help... ;(
sometimes, outdoor, after reset it finds very good signal - max 3G and holds it until next reset... BUT... when i tried to sync weather it doesn't and gsm signal went low. aprrox 5 seconds later went to NO SERVICE...
Anyone knows it? Can You help?

Have the same issue with mine
Device just lost signal - firstly I thought it was because of poor signal quality, however the problem was still there in any conditions (outside building, etc.)
Before that, I had the same problem with Touch HD - had to replace the motherboard (luckily it had warranty) because of the faulty radio module.
Did anybody manage to solve this problem with Diamond?
Thanks!

A_Lesha said:
Have the same issue with mine
Device just lost signal - firstly I thought it was because of poor signal quality, however the problem was still there in any conditions (outside building, etc.)
Before that, I had the same problem with Touch HD - had to replace the motherboard (luckily it had warranty) because of the faulty radio module.
Did anybody manage to solve this problem with Diamond?
Thanks!
Click to expand...
Click to collapse
i had a problem like thiat with an htc pharos! hard-reset solve the problem

lookass said:
Hi!
For 3 days i have a problem with GSM signal...
It started, when during the call it just interrpupted it and went to home screen with no reason.
From this moment it's permanently looking for a signal - no resets or switching airplane mode on and off help... ;(
sometimes, outdoor, after reset it finds very good signal - max 3G and holds it until next reset... BUT... when i tried to sync weather it doesn't and gsm signal went low. aprrox 5 seconds later went to NO SERVICE...
Anyone knows it? Can You help?
Click to expand...
Click to collapse
i have the same problem hope to get it working again :-S

Hi, i have that problem a couple of weeks ago, it was very simple, the contacts of the GSM chip was dirty, y took it out, clean the chip and the contacts and never have the problem again.
Sometimes the most simple things, are the last we think.
Hope this is your problem, much easier than hardware problem.
ICEX

Related

Standby of Death (SOD) with the Tytn II

I have a HTC Tytn II and have had the Standby of Death. It happened 3 times in the first 6 days of ownership. To fight this I have been soft resetting daily and haven't had another SOD in 13 days.
I have a question for you knowledgeable folk at xda developers is the SOD a hardware fault or is it down to software particularly the ROM. I have seen many post regarding the Hermes where certain WM6 ROMs had the SOD.
Then there is the G900 with the SOD problem. Can anyone tell me for sure if the SOD is a hardware fault can cannot be fixed with software updates.
EDIT: Updating this post on 23/07/09 I got rid of the problem on the Tytn II and never had the problem again, didn't know what I did to solve it until I got a HTC Touch Diamond 2 with the same problem. To solve this problem switch band from auto 3G/2G to 3G or 2G only, this means changing the band under phone options in the settings to WCDMA + UTMS 2100 (3G) or GSM + AUTO (2G) only. Changing your SIM therefore network provider may also solve the problem without changing the settings above. Hope this helps someone.
EDIT2: Also read this thread http://forum.xda-developers.com/showthread.php?t=540943&highlight=standby&page=2 where the resolution was to get a new SIM.
Can you post your ROM version, etc. etc. ?
Btw, I have TyTn for about 3 weeks now and dont have that problem.
Installed bunch of softwares already, did couple of soft-resets due too application lock up, but not SOD.
However, I dont use push email, nor let 3G/Wi-Fi connection ON all the time.
EDIT: Updating this post on 23/07/09 I got rid of the problem on the Tytn II and never had the problem again, didn't know what I did to solve it until I got a HTC Touch Diamond 2 with the same problem. To solve this problem switch band from auto 3G/2G to 3G or 2G only, this means changing the band under phone options in the settings to WCDMA + UTMS 2100 (3G) or GSM + AUTO (2G) only. Changing your SIM therefore network provider may also solve the problem without changing the settings above. Hope this helps someone.
EDIT2: Also read this thread http://forum.xda-developers.com/show...standby&page=2 where the resolution was to get a new SIM.
Pretty much the same.
Btw, have you tried to hard reset?
If not, try to give it a go. Hard reset is not something that you should afraid of.
I had one problem in the past (strange popup error everytime sending SMS) which I cant find any answer elsewhere. Even I hanged out in Microsoft.com, WinMo forum without any help.
I did hard reset, and the problem is gone!
I suggest to hard reset and use it for couple of days.
EDIT: Updating this post on 23/07/09 I got rid of the problem on the Tytn II and never had the problem again, didn't know what I did to solve it until I got a HTC Touch Diamond 2 with the same problem. To solve this problem switch band from auto 3G/2G to 3G or 2G only, this means changing the band under phone options in the settings to WCDMA + UTMS 2100 (3G) or GSM + AUTO (2G) only. Changing your SIM therefore network provider may also solve the problem without changing the settings above. Hope this helps someone.
EDIT2: Also read this thread http://forum.xda-developers.com/show...standby&page=2 where the resolution was to get a new SIM.
nlel said:
I`ve been doing soft resets now for 13 days I know that works... I last reset this morning. I am going to try and run now without a soft reset for the next couple of days to see if not running WIFI and not running with a data connection whilst in standby makes a difference. That is the only thing I think it can be.
I`ve actually been doing this anyway for the last 10 days or so since I discovered the disconnect option in the GPRS connection manager.
Click to expand...
Click to collapse
This was a common problem with the TyTn and there were a few workarounds that could be done to avoid it.
However one of the things I really like about my Kaiser is that I have not had a single freeze, SoD or any need for a hard reset in a month of using it - very stable indeed and I have loads of apps installed.
So, I kinda like the above advice to do a hard reset in case there is a bad install of something. It is most likely to be software related. ROMs can make a difference here but the shipped HTC ROM is fine in this regard.
Yes, your issue could be related to GPRS and Wifi left running. This could further be compunded by any software you have set to auto run like weather apps, messaging, push mail etc. So perhaps before a hard reset it is worth checking/stopping one thing at a time - GPRS/Wifi/ auto running apps in particular ASync. I have a feeling you may have a conflict in there somewhere.
Mike
No SOD here either. I have found this ROM really stable - and am loving the extra memory
EDIT: Updating this post on 23/07/09 I got rid of the problem on the Tytn II and never had the problem again, didn't know what I did to solve it until I got a HTC Touch Diamond 2 with the same problem. To solve this problem switch band from auto 3G/2G to 3G or 2G only, this means changing the band under phone options in the settings to WCDMA + UTMS 2100 (3G) or GSM + AUTO (2G) only. Changing your SIM therefore network provider may also solve the problem without changing the settings above. Hope this helps someone.
EDIT2: Also read this thread http://forum.xda-developers.com/show...standby&page=2 where the resolution was to get a new SIM.
nlel said:
The thing is I haven't installed any apps since I got the device except Googlemail JAVA but I had my first SOD before that was installed.
I don't leave any apps in the running memory either. Its got to be to do with leaving the GPRS data connection running or the Wifi enabled when the phone is in standby - both of which I did in those first 6 days.
Click to expand...
Click to collapse
That sounds right but then so do I sometimes and I don't get the SoD. If you have a full back-up I'd be really tempted to try a H/Reset.
Mike
I have found that on most of my HTC devices with a variety of ROMS that letting them go into standby with the wireless still enabled will cause response problems. Usually I find that they will wake back up but respond very slowly - particularly the hardware keys until I have turned the wireless off again. I assumed it was some kind of memory leak.
mikechannon said:
That sounds right but then so do I sometimes and I don't get the SoD. If you have a full back-up I'd be really tempted to try a H/Reset.
Mike
Click to expand...
Click to collapse
I think it maybe a question of how often you let it go into standby with the data connection active...and whether anything happens whilst it is in this state, in those first 6 days I would kick off a data connection not realising there was a disconnect option... and have it run for however long untill it automatically disconnects.
I could put it into standby with the data connection active and most often it will come out of standby but maybe sometimes it doesn't. If you are not always doing this then perhaps you never encountered it...
I dunno if it doesn't work then I`ll try a hard reset once I have my data connection settings written down somewhere.
OK, good luck with that - and will be useful info if you post back how you get on with it.
Oh and I notice you say "let it go into standby". - From my Hermes days I learned never to let it do that by itself, I would always do it manually, something I have done automatically since.
Mike
I got in the habit as well with my Hermes, always manually turn off WiFi when done with it. More than once I found the hermes stone dead overnite after I forgot to turn off thr WiFi. When this happens, the phone gets quite warm so something bad is going on when this occurs.
I have seen this 1 time so far with the Kaiser, I used WiFi and left it connected, powered off and holstered it. About 30 minutes later I put my hand on the phone and it was Hot. The battery was down 50% so there is some hi-power consumption condition that the phone gets into. So I continue to be very carefull with WiFi use.
no sods or soft resets. I have used hermes and istall countless rwm6 roms on it and none compare to the stability of this rom on the kaiser apart from couple minor bugs.
About Esmertec JAVA Enviroment Stability
Hi,
I used my TyTN with Esmertec VM and all software tried on it worked fine. Then when my Kaiser arrived I installed the same apps and some of them didn´t work. To be more specific I did run Leisure Suite Larry without notice on my Hermes, but it goes black in my Kaiser, just don´t run, I must press OK button for return to Today Screen and kill Java process.
Is there an update or workaround for get working those apps?
Regards,
Taguapire.
Starting to get a bit worried about my TyTN II now
Had to soft reset it twice in the last 2 days now
Today it had just been sitting on my desk connected to my PC all morning (about 6 hours)
Then I noticed the clock vanish, left it a couple of minutes and then picked it up
Tried to unlock it but it was totally unresponsive so had to soft reset
The only things that were running were the HTC Home plugin, batti, Spb Diary and Spb GPRS Monitor (have now disable batti as only used it for the battery level across the top)
I don't leave GPRS, 3G, WiFi etc running I always close it down when I've finished using it
Seems to be a memory leak in something somewhere
Any ideas guys
Everton1878 said:
.....
Tried to unlock it but it was totally unresponsive so had to soft reset....
Click to expand...
Click to collapse
Do you mean the device-PIN lock (ie the 4 digits unlock screen to protect the device) ? Cause i've experienced there's a seriously bad bug in WM6 (so M$ is to blame for this) with the device-PIN... It causes the device to hang, to 'forget' mail accounts etc... It's very annoying bug, cause i'm carrying around my TyTNII totally unprotected these days...
Dunno if this is the reason for your troubles too, but it can't hurt to have a look into that
Everton1878:
Maybe it was Spb Diary or some other process that was resident (use TaskMgr - Task Manager 2.7 - to check processes). It all depends on what 3rd party applications you have installed on your tytn II, some mess with registry or keep resident processes.
mikechannon said:
OK, good luck with that - and will be useful info if you post back how you get on with it.
Oh and I notice you say "let it go into standby". - From my Hermes days I learned never to let it do that by itself, I would always do it manually, something I have done automatically since.
Mike
Click to expand...
Click to collapse
Well I went approx 37 hours before I encountered a problem... it wasn't an SOD but I couldn't connect to a data connection. I hadn't used the device for a few hours no data connections running obviously when I tried to connect, it kept trying and trying and eventually popped a message saying that it couldn't connect for unknown reason and that I should reset my device.
Thinking that maybe the GPRS was down I left it overnight and tried again this morning same problem. Eventually I decided to soft reset as suggested and the data connection worked again immediately afterwards.
This is the first time this has happened to me and in view of this fact I think I was better off doing intentional resets, ie not waiting for it to force me into one (it only went 37hours!!!).
Anyway some people said they went 11days and counting without soft reset so I`m going to try again w/o soft resets and see how long I can go hopefully without SOD as well.
Doing it daily meant I was never forced into one and I liked that.
That problem below could happen, for sure, I experienced once or two before (with MDA Pocket/Magician). But it is not a plaque ...
How many times have you experienced that connectivity issue? Once? Good ... dont worry then!
Me personally, I have never soft-reseted my Kaiser because of SOD.
And I think your problem is obvious, Kaiser has problem with standby when you have data connection/wifi/etc. It must be something related to that one.
I have never put my device on standby while the data connection is still active (It could be just me, but this is also obvious for MOST people).
nlel said:
Well I went approx 37 hours before I encountered a problem... it wasn't an SOD but I couldn't connect to a data connection. I hadn't used the device for a few hours no data connections running obviously when I tried to connect, it kept trying and trying and eventually popped a message saying that it couldn't connect for unknown reason and that I should reset my device.
Thinking that maybe the GPRS was down I left it overnight and tried again this morning same problem. Eventually I decided to soft reset as suggested and the data connection worked again immediately afterwards.
This is the first time this has happened to me and in view of this fact I think I was better off doing intentional resets, ie not waiting for it to force me into one (it only went 37hours!!!).
Anyway some people said they went 11days and counting without soft reset so I`m going to try again w/o soft resets and see how long I can go hopefully without SOD as well.
Doing it daily meant I was never forced into one and I liked that.
Click to expand...
Click to collapse

3G Issues still - Help needed!

Hey all,
I've had my TyTn II for a while now and everything's been ok.
I recently upgraded my rom, from an old Duttys rom to a new one, since doing that my phone would not pick up signal at all - I couldn't phone and people couldn't phone me - it looked like my phone had reception but the second I went to call all the bars dropped off.
I posted on here. - It's the radio people assured me. I swapped radios. 1 million times.
Everytime, the 3g would work for a few hours and then the same problem.
I decided it was the rom. I installed a different duttys rom yesterday, and low and behold, the phone worked. Calls, tinterwebs the works.
Got home. Same old problem.
The one thing that links the roms is they're both Windows 6.1.
I'm using a MDA Vario 3 on T-Mobile UK.
Can anyone help me?
31 views - 0 replies.
No one had this before? Or any ideas? Seriously, if someone solves this I'll paypal them £20 as a thanks - it's getting on my nerves THAT much!
bazzlad said:
31 views - 0 replies.
No one had this before? Or any ideas? Seriously, if someone solves this I'll paypal them £20 as a thanks - it's getting on my nerves THAT much!
Click to expand...
Click to collapse
If you want to stick with WM6.1 do as follows:
(i hope you've got HARDSPL...)
Run the TriColor mode and install radio same as i do (signature)
when it start to restarts hold the camera button so you can boot tricolor again without loading rom.
Install your favorite ROM,
When everything is configured, run Connection setup again and restart your phone. Test it.
If it still doesent give anything it could problem with some third party apps or your device itself.
You can try my configuration it works perfectly for me.
Cheers,
Chris
Giving that a go today - will chuck you over some $$$ wonga if it works! Thanks.
I hope that everything will work fine for you. Im always happy to help.
Cheers,
Chris
Tried - No joy - but thanks - anyone else got any ideas?
I have a similar issue. On my 3rd phone now (Orange) due to phone not connecting in 3g mode to make calls. Seems to be an issue where it fails to switch automatically between GSM and 3G, although it often shows there is a network connection (even though there isn't - really anoying).
However, by turning off hsdpa it finally seems (6 hours or so) to stay connected to the network and able to make calls. Can anyone else with the same problem try this?
I don't enough about hsdpa to understand why having it switched on should make a difference, unless it changes the functionality of the radio. Suggestions welcomed.
You may have a faulty handset.
Exactly the same problem as my friend experienced with his MDA Compact 2. I tried flashing new ROMS and it seemed to fix it but in time he'd begin to suffer from a disappearing signal bar and random dropouts before, during and after calls.
You could try turning your network to GSM only and see if that makes a difference. I'm on T-Mobile and I know that last week I couldn't use my phone in 3G mode for 36 hours or more owing to a network problem in my area, gsm worked fine though.
not convinced about the faulty handset although it is a possibility.
I am starting to think that with the hsdpa enabled it somehow changes the way data and voice calls are handled.
Really could do with some opinions on hsdpa and whether enabling it or disabling it changes the functionality of the phone or the interaction with the networks
bazzlad said:
31 views - 0 replies.
No one had this before? Or any ideas? Seriously, if someone solves this I'll paypal them £20 as a thanks - it's getting on my nerves THAT much!
Click to expand...
Click to collapse
Just search a bit in the Kaiser forum, quite a few people (including me) have had similar problems. Radio hardware on some units is faulty and requires return to service center for repair.
The radio starts by not being able to send/receive calls/data on 3G while it still works on GSM, then later GSM will eventually fail too.
T-mobile have had problems with there 3G in the last week in northern Uk. I am still getting a few problems each day as you describe. I dont know, but I am assuming they are doing some repairs
kilrah said:
Just search a bit in the Kaiser forum, quite a few people (including me) have had similar problems. Radio hardware on some units is faulty and requires return to service center for repair.
The radio starts by not being able to send/receive calls/data on 3G while it still works on GSM, then later GSM will eventually fail too.
Click to expand...
Click to collapse
Still, my experience is that there maybe faulty hardware out there, but by disabling hsdpa everything is fine. I'm currently making plenty of calls on 3g network, dowloading lots of data on 3g network. My previous problems were when the handset showed it was connected to the 3g network when it wasn't able to take or make calls or download data. Before, the only thing I had tried was manually selecting GSM in the connection settings.
I'm not saying that disabling hsdpa is a good thing or a solution, just that it might help some smart person to identify what is going wrong.
Any help out there?

htc diamond freezing

Hi!
i am new here, and i do have a problem.
I have my HTC Diamond since 2 weeks, and it is blocking (freezing) once per day: the device is on standby, i try to turn it on, but nothing happens, always a black screen, not even the restart button works; the only solution is to remove and put back the battery.
the issue is that if someone calls me during this "freeze", he gets that my phone is ringing; but i get nothing; and not even a missed call after i succeed to turn it on.
- ROM version: 1.93.479.3 WWE
i highly appreciate if somone can help me with this problem.
thanks,
Tony
I've had this exact problem, but the reset button on the back does work when this happens. I'm in the US on T-Mobile in NYC using a European Diamond. I work in a building that has very weak T-Mobile coverage and I've found that I only get the problem when I am at work. On the weekends and at night, the problem never happens because I am usually in an area that has either no coverage or good coverage. I have not eliminated the problem, but I have discovered that setting the network type to "GSM" and the band to "UMTS(850+1900)GSM(850+1900)" reduces the incidence of the problem for me to once every few days. I'd love to hear a good solution to the problem as well.
sounds like a problem with the Radio, it could be that the weak signal is causing the phone problems.
Try flashing a newer Radio version, and make sure all the settings (as Drachen said) are correct.
If you arent happy with Flashing a Radio, then send it back and get a repacement (chances are it will have newer firmware)
I have the exact same issue as you have. I had basically tried all sorts of ROMS, be it stock or cooked. It seems that since the upgrade to all v1.93 roms, this problem became more frequent.
Check this link here. I posted some screenshots of my problems there.
http://www.ppcsg.com/index.php?showtopic=102551
I've tried Vic's rom, Swift's roms, stock 1.93 rom with stock spl etc.. all with no success. it would be stable for the first 1-2 days after flashing, but immediately after that, it will happen like twice a day.
Like your case, I'm having this "whitenoise" screen (instead of a blank screen, which i used to have at times also) and I tried calling myself from my land line. I can hear the ringing but my phone does not respond.
So since then, here's my suggestion.
DISABLE your TouchFlo3D. Use default Today screen or SPB Mobile Shell. Thats what I did and I haven encountered a single issue since then for 2 days straight. Try it for a day or two to see.
Base on my analysis, our Diamonds has a defect on the 3D gpu chip. Cos corruption only occurs on programs using the HTC 3D driver (e.g. the OpenGLES api from Koush) while normal 2D functions is perfect.
I am waiting for the next ROM update to see if it fixes the issue before I send in my set for repair before my warranty ends, but I feel its gonna be hard to replicate the issue to the service engineer.
I'm going to wait until the end of the week to declare that the problem has been solved, but I'm having a LOT of luck with the latest radio ROM (v1.00.25.BS14) since it was posted on Fri morning (for me), and have had no freezing problems through the end of Tues. Tony1313, try upgrading to the latest radio ROM on the radio ROM thread in the development forum for a while and see if it helps you. Another set of eyes on the problem would be good.
knave, I don't think the cause of the problem for you is the same as it is for me. I haven't gotten any graphical glitches yet on my Diamond and I've only seen the snow screen you're talking about once when charging overnight (in the 3 months I've had the Diamond). As I mentioned, the crashes only happen in one location (my office) and never happen after-hours, weekends or on vacation. The two things I did to reduce the frequency of problems (that helped) were to change Exchange Activesync from "Automatic" to "Manual" during work hours and to set the bands in the control panel as above. All that makes me believe my problem is radio/reception related.
Drachen said:
I've had this exact problem, but the reset button on the back does work when this happens. I'm in the US on T-Mobile in NYC using a European Diamond. I work in a building that has very weak T-Mobile coverage and I've found that I only get the problem when I am at work. On the weekends and at night, the problem never happens because I am usually in an area that has either no coverage or good coverage. I have not eliminated the problem, but I have discovered that setting the network type to "GSM" and the band to "UMTS(850+1900)GSM(850+1900)" reduces the incidence of the problem for me to once every few days. I'd love to hear a good solution to the problem as well.
Click to expand...
Click to collapse
Hi Drachen I did a similar thing to you except I set it too GSM + AUTO it solved my SOD problems completely. Here is my story.
I had the Standby of Death SOD this is when the phone fails to come out of standby with a power button press. This issue only affects some people on some networks. I'm not sure if its a network problem or a software problem but as only a minority of people have it, I suspect its mainly a network problem there is a software solution.
The solution is to change the phone settings band option from auto 3G/2G to either 3G Only (WCDMA + UTMS 2100 in Europe) or 2G Only (GSM + AUTO) depending on your requirements.
Also read this thread http://forum.xda-developers.com/showthread.php?t=540943&highlight=standby&page=2 where the resolution was to get a new SIM.
Obviously this only solves the problem when the crash is because of the sim and/or settings which impact the sim. To rule out a software cause its best to start with a hard reset.
i have freezes many times each day, even if im using it with no sim card. i don't even know what to do.
i have a stock rom.
I bet you got the 1.93 ROM and not 2.03, go update to it!
My problem is:
when a turn it on, it just show htc background and that's all
who faced with this problem?

Diamond connection dropping problems!

I've been having this problem for a while but it's getting worse, I've tried official and cooked ROMS and nothing makes a difference so was wondering if anyone else was getting it?
Basically my phone will lost signal, and no matter where I am it won't get it back unless I switch the phone module off in comms manager or switch £G on/off.
I've also noticed the same thing happen to my GPS signal when using Tomtom, it will lose signal and need a reboot to get it back, last half an hour or so then lose it again.
Really annoying, was wondering if anyone has any suggestions?
It seems like you have a defective device. I am also using TomTom on my Diamond and have never lost a signal.
It just seems like a software problem to me as it happens when the phone is sat in a holder stationary sometimes too

Redmi 4x trouble with connection and heat

Hello fellow members. I`ve stumbled upon a trouble with my Redmi 4X. I'd like to ask you if someone had similar problems with his Xiaomi. But first thing first...
I`ve dropped my phone few days ago. Guess what - broken screen :crying:. I did some research and decided to repair it on my own. I ordered orginial replacement kit (LCD + digitizer), watched few videos "how to" and I made it. But.
It seems that now I have some problems with network. Signal strength varies between full and the lowest (on 4G), but it feels like it's always the lowest. The internet is so slow, calling and sending messages is pure luck. Sometimes you can send or call, sometimes it's like out of range. I`ve tried setting "only 3g" setting, but it doesn't help. Factory reset didn't help aswell.
Additionally, the phone is overheating. I think it may be associated with the network problem, since phone can't find himself in range of mobile operator.
I called mobile operator and they didn't do anything, everything seems to be as before.
The phone is updated to the most recent OS (Global). I don`t have any necessary or strange apps, nor root or custom rom.
Before the change of LCD everything was running smoothly.
So, did any of you guys had some similar troubles with his/hers xiaomi? Could I broke something during the replacement? I think not, I was extremely careful, assembled everything as it should be but still..
Hope you guys could figure something out, since I`m really out of my mind what is wrong now.
Thanks!
dawid5210 said:
it feels like it's always the lowest. The internet is so slow, calling and sending messages is pure luck. Sometimes you can send or call, sometimes it's like out of range. I`ve tried setting "only 3g" setting, but it doesn't help. Factory reset didn't help aswell. Additionally, the phone is overheating.
Click to expand...
Click to collapse
Hi, the poor reception and overheating symptoms are typical of bad antenna or its connection, which were probably damaged during the impact. Without an antenna, RF transmitter has nowhere to dissipate its energy, hence internal overheating.
Please examine the PCB-antenna pairs of contacts on both sides of the connection. Good luck...
:highfive:
Try switching between preferred network 4G/3G/2G and see if you face the same issue.
you can also try using different network carrier sim into your device and your sim cars in other device and see if this issue persist
if issue persist try reconnecting antenna cable.

Categories

Resources