[Q] Sony Xperia Arc S :: NO mobile network signal - Xperia Arc Q&A, Help & Troubleshooting

Hello,
I have done the factory reset after that my phone doesn't detects any Mobile network signal. Its Showing me red x mark next to the network bars on the top right hand corner on the display (photo Attached).
Its almost new (used for 2 months only) Bought it from ebay.in. I have checked with service station they said it has some hardware Issue (cant claim warranty as it from Grey market... :crying:
will appreciate your valuable comments/solutions.

First try - Visit PC Companion, Support Center, use the repair function (usually ment to use when phone does not start up, though you can still use it).

Try another SIM card first
Sent from my Xperia Arc S using xda app-developers app

Hello...
i tried both, no success.

If you have unlocked bootloader, try to flash a new base-band , try base-band 85 if you are on 77 and ICS.
I read that you bought the phone on ebay, and that the warranty is not worth it?
If so, in case you do not have the unlocked bootloader, you have nothing to fear, just unlock the bootloader and do what you've suggested.

mohd.urooj said:
Hello,
I have done the factory reset after that my phone doesn't detects any Mobile network signal. Its Showing me red x mark next to the network bars on the top right hand corner on the display (photo Attached).
Its almost new (used for 2 months only) Bought it from ebay.in. I have checked with service station they said it has some hardware Issue (cant claim warranty as it from Grey market... :crying:
will appreciate your valuable comments/solutions.
Click to expand...
Click to collapse
same issue here, started to lost signal after factory reset.

Related

Is my phone blocked?

Hi,
I bought a HTC touch hd about 5 months ago, which i lost about 1 month ago. I phoned orange and told them to cancle my simcard, i didnt give them an imei number (obviously cos i didnt have it), just my lost phone number. I bought a HTC touch dual from ebay the day after which has been working perfectly. Then a few days ago, my friend phoned me saying he has found my touch HD, i got it from him, put my simcard in it and i got signal and was able to phone people from it but when i did a soft reset, it didnt get the signal back, there was just an exclaimation mark (!) next to the signal meter in the task bar, when i go into the phone settings, it says "no service" and when i click find, it says "cannot register to network."
To confuse the situation even more, when i turned the phone back on a few hours later, i regained signal and was able to phone people, but as soon as i did soft reset, it lost signal again. Over the past week i have been constantly testing it and have noticed that if i turn the phone on after about 5pm, it gets signal but as soon as i reset the phone, it loses signal again until 5pm the next day. i know it sounds strange but thats wot happens.
Iv just unlocked the phone to all networks (using the xda tool ) and tried my o2 sim in there but that does exactly the same thing, i will try it at 5pm tomorrow. Iv tried phoning orange but they are useless, and the staff in their shops just tell me to phone customer services.
Also, i can use GPRS/HSDPA all the time and go on the internet and stuff, everything on the phone works, except the actual phone itself (unless i turn it on after 5pm and leave it on, will only lose signal after a reset)
Would this point towards them blocking my phone? cos i always thought, once your phone is block, it will never get signal unless the imei is changed.
Also, is the imei on its own IC inside the phone? Does anyone have access to a service manual or at least know the circuit location of the chip? im an electronics engineer and have the facilities to change and read small ICs. If the worst comes to the worst, i will change the imei with either 1 from a faulty touch HD or from my touch dual, whichever is easier.
1 more thing, dont post telling me its illigal to change the imei, i already know, its illigal to download copyrighted stuff, break speed limits or take drugs but people still do it everyday.
Thanks in advance to any help given
Mr Moo

AT&T network constantly disconnects

I'm not sure if this is in the correct section or not but I am having a very irritating and annoying issue with AT&T. I previously had a Moto Atrix 2 that ended up ****ting out on me due to faulty hardware (and then Moto wouldn't honor their warranty) so I bought the Sony Xperia ion since I have always liked Sony and their products. In between my Atrix dying and buying my ion I was using a very outdated (but amazing for its' time) Sony Ericsson w810i as a backup phone. The W810i kept giving me issues with my SIM card, it was always ever one of two error messages: The phone would make a noise and bug out for a minute before displaying "Insert SmartChip" as if I turned the phone on without a SIM installed. The other wouldn't make a noise at all, it would just display "Inactive SIM" where "AT&T" or "Emergency calls only" would normally be displayed on the phone's screen. Now, I assumed that this was because I bought the phone used, it's a six year old phone, and my Micro Sim to Regular SIM (homemade) adaptor might not have aligned the brass contacts up 100% every time.
However, now I have a brand new shiny Xperia ion. I love the phone and I love ICS. However, and I cannot remember if this issue happened with 2.3.7 or not too, but I will be texting or browsing the web and I will end up trying to send something, search or click on something when my phone alerts me that I have no network connection. And when I say no network connection, I mean absolutely nothing. No 4G/LTE/any other data, no phone bars. the corner of my phone displays the 5 grayed out bars with a red X next to it. The notification pull down menu that normally displays "AT&T" will display "No Service." Normally, everything returns slowly, in a matter of a few minutes. First I get my bars back, it'll display "Emergency Calls Only," then "AT&T," before finally I have full service and 4G again. But not LTE. Normally LTE does not come back and the only way I have found to reestablish an LTE connection is to restart the phone.
This is an enormous pain in the ass! For obvious reasons. Especially since I will be texting someone back and forth with no problem and then when I go to send a reply, boom, all of a sudden no service. Sometimes I will pull my phone out of my pocket and go to search something and there will be no service. This happens seemingly regardless to location. It happens on the street, at my school, in my apartment, in my room in my apartment - This issue happens anywhere where I would normally get 5 bars and LTE service. And on top of it all it will happen multiple times in a day, sometimes 3 or 4 times. Sometimes it will even happen within 10 minutes of it just happening!
I am having a hard time figuring out if this is an AT&T issue or a phone issue. Like I said with my Atrix 2 I had no issues with randomly losing network connection. With my W810i it would always have SIM card read issues (btw, I did end up getting a new SIM card when I bought my ion) and with the 810i it would happen close to 6 times a day, sometimes restarting the phone back to a "insert SmartChip" screen and having to do it all over again.
Im thinking that if the issues I am having are the same between the Sony Ericsson and the Sony that the ion just displays it differently since it is a smartphone and can function without needing a SIM card in it.
So my question is has anyone else on AT&T having a similar issue with the Xperia ion? Or has anyone had issues with any previously owned Sony or Sony Ericsson phones?
Haven't had connection issues in my ion, Xperia S,P, or Play with AT&T like you described.
Sent from my Sony Xperia™ ion
never had your issue before. have you tried repair through sony pc companion? if not then try it first but remember to back up your data
if yes but didn't solve the problem then it should either be your new SIM card's problem or just the phone's hardware problem
I'm having the same problem, chatted with Sony and they gave me an issue # and told me to send it to them. My att service has always sucked from my house but now is non-existence.
Sent from my LT28at using xda app-developers app
I realize this is a year old but I just wanted to report back that since switching to a non Sony android phone (LG if it really matters) I have not had this issue once. My best guess is it's some Sony issue.
Sent from my LG-D800 using xda app-developers app
osiris010 said:
I realize this is a year old but I just wanted to report back that since switching to a non Sony android phone (LG if it really matters) I have not had this issue once. My best guess is it's some Sony issue.
Sent from my LG-D800 using xda app-developers app
Click to expand...
Click to collapse
You where not alone on this. I have a LT28at and had the same issue with JB only. After I switched to the Rogers JB I have had zero issue. While running a att base band on 211h it would work for some time but randomly drop resulting in no service. Then it would come back with no LTE what so ever. The only way I could fix it was to start over with a fresh flash. Very few of us ever had this happen and it seems to only effect the 28at version.

[Q] HTC ONE V Wi-Fi & Mobile Network Reception Problem

I have bought a HTC One V GSM but its it catches Wifi network very poorly although the cell is placed at less than 1 feet of distance from the router and my other laptops and tabs which are in other room catches full signal whereas the One v gets 1 bar in wifi signal.
Mobile network doesn't get when i am in office or home. But when i go to road i get around 1-2 bars of signal but not full. I tried many sims also still same error occurs. whereas the same sim in my other phone shows full and constant signal whether in home or road. when i search manually it says Error searching networks.
Can this be solved by flashing rom??
I have bought this from Ebay India.
I have unlocked the bootloader and its rooted.. and have flashed Kiss kernel. Its only 2-3 days old phone still in warranty, but i doubt whether they will give replacement or fixed this issue coz i think unlocking bootloader voids warranty.
But the problem is from 1st day after I opened it from the package.. Initially i thought it was sim problem but when i tried other sim and also checked wifi network then i show that issue..
I thought flashing a kernel might work but it didn't work.
Sounds like antenna problem for me.... Just find another one v user and switch the lower back portion... The one which has the beats audio logo .. And check it out ... If it still has problem ... U can go back to locked boot loader and try to get a replacement .. They won't question much if u go within 15 days .. U will get a new device ...
Sent from my One V
sorry, but you wont get warranty if you re-locked boot loader also ,there is a security check in htc centre in which they will catch it
anirudhnyg said:
Sounds like antenna problem for me.... Just find another one v user and switch the lower back portion... The one which has the beats audio logo .. And check it out ... If it still has problem ... U can go back to locked boot loader and try to get a replacement .. They won't question much if u go within 15 days .. U will get a new device ...
Sent from my One V
Click to expand...
Click to collapse
How to switch the lower back portion?? i have removed the cover for sim card slot.. but still it doesn't catch full wifi or network signal.. Can we fix this issue by opening the mobile phone covers?? I have sent by courier to the seller for replacement, don't know whether they will give or not,, jst hope for the best.. Bootloader was unlocked when I sent it.. Kiss kernel was also flashed..
That's the problem.!!!! The sim cover is the antenna l!!
Sent from my One V
Yes if u remove the cover then u won't get any signal.
Sent from my HTC One V using xda app-developers app
anirudhnyg said:
That's the problem.!!!! The sim cover is the antenna l!!
Sent from my One V
Click to expand...
Click to collapse
You mean the small back cover which has Beats Logo?? If it was that, then i did not put it on the phone coz i was frequently changing sims to test it..
The cover if removed signal will not b there...
Sent from my One V using xda app-developers app
the cover is the antena .... the one with the beats logo
gulsher said:
sorry, but you wont get warranty if you re-locked boot loader also ,there is a security check in htc centre in which they will catch it
Click to expand...
Click to collapse
You are wrong. If it says relocked but without tampered then warranty still apply because it was restored to factory settings by official ruu.
robdevil said:
You are wrong. If it says relocked but without tampered then warranty still apply because it was restored to factory settings by official ruu.
Click to expand...
Click to collapse
yo can try if you get you are lucky because from htc service centre they clearly told once its rooted they will catch it by security check
htc one v reception
look at the 4 golds pins under the back cover, make sur that they are touching the cover. If not raised them gently with a small screww driver.
Your antenna signal should be restore.
gino
robdevil said:
You are wrong. If it says relocked but without tampered then warranty still apply because it was restored to factory settings by official ruu.
Click to expand...
Click to collapse
if it's restored with RUU then it won't say 'relocked'
it'll just say 'locked'
but in most cases owners of android devices love updating with OTA updates. and if you or he did, accept the 15mb OTA update, it upgraded the Hboot and the RUU for the phone is useless.
with out s-off, meaning PRIMOC and PRIMOU(except the lucky few primou)
will not be able to downgrade the Hboot or RUU.

SIM card not detected - then detected again

My phone is constantly failing to detect the sim card, usually if I restart the phone or leave it for enough hours it will "find" it again.
Short of reflashing it I'm not sure if there's any way to determine if this is a software or hardware issue. The phone itself is a refurbished one (thanks to the phones insurance replacing it a few months ago), however it is now out of warranty. If it was a hardware fault, how much would it probably cost?
Thanks, Shaun.
The first thing I'd try is a different SIM card or a different SIM card insert (bit of plastic that the SIM sits in).
Has this always happened since you've had the phone?
or
Has it happened since you flashed the phone?
As for the price of repair I haven't a clue (i do all repairs myself), but my guess is in excess of £150
You may want to provide more information before other, more experienced people, come to your aid.
It's slowly gotten worse over the last few months (the first couple of times I just thought it was a once off bug or something, which is why it's very difficult for me to give you an exact when it happened).
The fact that its gotten worse in itself is leading me to guess its a hardware fault - I could have knocked or dropped it and not remember or something.
I don't have any other SIMs but I'll give flashing it to a different ROM or stock a shot first.
shauntp said:
It's slowly gotten worse over the last few months (the first couple of times I just thought it was a once off bug or something, which is why it's very difficult for me to give you an exact when it happened).
The fact that its gotten worse in itself is leading me to guess its a hardware fault - I could have knocked or dropped it and not remember or something.
I don't have any other SIMs but I'll give flashing it to a different ROM or stock a shot first.
Click to expand...
Click to collapse
I feel as if that is your best best before you go throwing money at it.
Good luck!
Does the phone say no sim card (with icon) or do you lose service?
nor1982 said:
Does the phone say no sim card (with icon) or do you lose service?
Click to expand...
Click to collapse
It has done both, the latter's slightly more common though. Probably more often than both it will momentarily drop out, then come up with a "Preparing SIM card..." message.
Still happening after flashing it with a different ROM. Looks like it's probably hardware :/
Might be coxicial cable that connects the pcb with antenea board they do come off from time to time
Sent from my HTC One X using xda app-developers app
Hi there,
i have a similar problem with my device:
network disconnects sometimes (for some reasons ok, as example when i sit in the underground or other places without gsm network) - but then the services doesnt comes back - i'm complete offline. next behavior: i'm just talking with full gsm bandwidth, and for really no reason i get disconnected -> no network anymore, no service anymore.
can it be a hardware fault or should i try to flash the modem (when possible) ? I'm on the latest HTC firmware, device isnt rooted or flashed... it is as i got it from the market.
thanks for a hint what i can try
See above could be that, what network you on?
Sent from my HTC One X using xda app-developers app
nor1982 said:
See above could be that, what network you on?
Sent from my HTC One X using xda app-developers app
Click to expand...
Click to collapse
I'm on GSM (in Germany the O2 network)
maybe the network fault can be solved:
just have read in the vodafone forum in uk and found a hint from a user, who was taping the back side of the SIM card with 2 stripes of plastic.
Have tried this and report tomorrow here if it solves the issue
Tested with taped SIM card and i can say: it works like a charme

[Q] HTC Desire HD - No service or Network detection

Hi Guys and Girls
Ive been without Service on my phone DHD now for 8 days. Originally my phone was working great, no issues bar the cracked screen that it came with over 2 years ago. 8 days ago i placed a call, chatted for a while and disconnected, as usual. 5 mins passed and i needed to make another call but my phone was showing an x over the signal strength meter in the notification bar. I called my carrier from my partners handset and asked what was going on and weve not been able to resolve any issues. Ive had a replacement sim sent to me which also doesnt work in the handset, but does work in my partners phone. Is there a known fault like this?
What ive done:
Called Tesco (MY Carrier) and had them run checks for any restrictions to the Sim or handset. Nothing placed by them, had replacement SIM sent to me which works in my partners handset but not my DHD
Had tesco check the IMEI for restrictions, none found
Checked signal Strength, 0
Checked my Lookout and theres seemingly nothing wrong there
Factory Data Reset
Checked APN settings, all correct
Checked the Status of the IMEI and IMSI numbers, both showing Active and working information, not blocked
Re-seated both the battery and SIM multiple Times
Tried the Sim in other working phones with Success
Cleaned and reseated the gold contacts under the battery cover and the sim cover
Tried 3 working SIMs but nothing in the handset
Entered Hboot mode, this is where it got interesting, Hboot screen shows *** LOCKED (00W) *** at the top, image below
Is this what is causing the issue? how do i resolve it?
Any help would be greatly Appreciated!
In addition, my phone was originally locked to the Orange network. Ive been out and bought an orange sim card and that doesn't work either, and wont register on the network either, so im all out of ideas!
Venom18 said:
Entered Hboot mode, this is where it got interesting, Hboot screen shows *** LOCKED (00W) *** at the top, image below
Is this what is causing the issue? how do i resolve it?
Any help would be greatly Appreciated!
Click to expand...
Click to collapse
Did you get the phone new or used? I could be wrong but it looks tome like someone may have unlocked the bootloader and later re-locked it. I don't think this would affect your reception.
Maybe you should re-flash your phone's radio. It's also possible something has gone wrong with your phone that is not software-related.
audit13 said:
Did you get the phone new or used? I could be wrong but it looks tome like someone may have unlocked the bootloader and later re-locked it. I don't think this would affect your reception.
Maybe you should re-flash your phone's radio. It's also possible something has gone wrong with your phone that is not software-related.
Click to expand...
Click to collapse
It would of said **RE-LOCKED OOW** or something like that if someone re locked it, it looks as though its been updated to a unlockable bootloader though, he could do with unlocking it and flashing a radio, he'll lose all data on the device though
Sent from my Desire HD using Tapatalk 4 Beta
humzaahmed155 said:
It would of said **RE-LOCKED OOW** or something like that if someone re locked it, it looks as though its been updated to a unlockable bootloader though, he could do with unlocking it and flashing a radio, he'll lose all data on the device though
Sent from my Desire HD using Tapatalk 4 Beta
Click to expand...
Click to collapse
Oh, didn't know it would say "RE-LOCKED" as i have an unlocked bootloader but have never relocked it.
Venom18 said:
Hi Guys and Girls
Ive been without Service on my phone DHD now for 8 days. Originally my phone was working great, no issues bar the cracked screen that it came with over 2 years ago. 8 days ago i placed a call, chatted for a while and disconnected, as usual. 5 mins passed and i needed to make another call but my phone was showing an x over the signal strength meter in the notification bar. I called my carrier from my partners handset and asked what was going on and weve not been able to resolve any issues. Ive had a replacement sim sent to me which also doesnt work in the handset, but does work in my partners phone. Is there a known fault like this?
What ive done:
Called Tesco (MY Carrier) and had them run checks for any restrictions to the Sim or handset. Nothing placed by them, had replacement SIM sent to me which works in my partners handset but not my DHD
Had tesco check the IMEI for restrictions, none found
Checked signal Strength, 0
Checked my Lookout and theres seemingly nothing wrong there
Factory Data Reset
Checked APN settings, all correct
Checked the Status of the IMEI and IMSI numbers, both showing Active and working information, not blocked
Re-seated both the battery and SIM multiple Times
Tried the Sim in other working phones with Success
Cleaned and reseated the gold contacts under the battery cover and the sim cover
Tried 3 working SIMs but nothing in the handset
Entered Hboot mode, this is where it got interesting, Hboot screen shows *** LOCKED (00W) *** at the top, image below
Is this what is causing the issue? how do i resolve it?
Any help would be greatly Appreciated!
Click to expand...
Click to collapse
Re locking or unlocking the boatloader will not affect the signal. That seems to be a hardware issue and therefore you might need to visit a service centre
Sent from my ASUS Transformer Pad TF700T using xda app-developers app

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