[Q] No signal on unlocked HTC Sensation - General Questions and Answers

I followed method 2 in this thread to unlock my new HTC Sensation. I can't reply to that thread because I don't have ten posts on these forums.
After unlocking my phone, it accepts my SIM but I constantly have "No Service". The SIM works perfectly in other phones. I tried another SIM in my Sensation and got the same problem. I've checked my APN settings and there are no problems there. I've tried restoring my oldest Nandroid backup, restoring factory settings, etc. but with no luck. When I search for network operators, my phone tells me, "Error while searching for networks." I haven't tried restoring with an RUU (where can I get one?) but other users who seem to have the same problem have tried that with no luck.
At one point last night my phone did suddenly have signal and start working properly. I can't imagine what caused this; my phone was sitting on my desk untouched at the time. (I only noticed because it beeped to indicate it had received an SMS.) I tried sending and receiving calls and both worked just fine.
However, some time later I needed to put my SIM back in my old phone to check something. When I put the SIM and battery back in my Sensation, I was back to No Service. After waiting several hours the situation still hasn't resolved itself like it did before.
Does anyone know what's going on here, or better yet, how I can fix it? Is there any way I can reverse whatever the PG58DIAG file did to my phone? I actually have my phone's real unlock code now, so would be very happy if I could set it back how it was and unlock it legitimately. (I resorted to this method because I was impatient last night and am kicking myself now.)
Edit: In the interest of providing as much information as possible, I'm 90% sure I shut my phone down and restarted it at least once after it started working last night. It was only after taking the battery out that it went back to No Service.

I seem to be having more or less the exact same issue. I have an unlocked HTC Sensation and am using a ROGERS SIM card with it. Works perfectly well in my other phone, Curve 9360, and in a couple other phones as well, but the Sensation will have signal for a second then lose it immediately. For example, an SMS came in just like it did for the OP, then the signal was gone again right away.
Funny thing is this just started today, literally a couple hours ago. It was working fine up until then. Battery pulls or soft restarts don't seem to help.
Thanks to all with any ideas.

To clarify, when my phone found a network it wasn't just a brief flash of reception - it stayed connected and fully functional until I took out the battery. I haven't seen it connect to anything since.
But yeah, would be incredibly grateful if anyone could help out.

Hi, I am having the same issue.
I have unbranded a Vodafone Sensation and applied a stock HTC RUU as per the guides at XDA developers (linked to in post above).
All was fine on Thursday - got a T-mobile signal and a text message from them etc. Turned on today to update my phone properly, and I can't get any service from the phone no matter what SIM card I put in it.
What should I do???
Many thanks in advance.

My phone seems to be working now but I'm not sure why.
After my last post, I put my SIM in my Sensation and left it overnight on my desk to see if it would find a signal. No luck; I woke up and it was still saying No Service. I put it in my pocket and cycled to work, and when I got there my phone had signal and was working perfectly. I considered the possibility that my bedroom might have been some kind of no-service-bubble, but my phone is currently sitting on my desk with full signal strength, and as I said earlier, the SIM worked fine in an older phone in the same place.
Last night I installed a custom ROM (Android Revolution HD) and after installing it my phone froze at the startup screen. With no other option I took my battery out, fearing the worst. But when I turned my Sensation back on the new ROM was working fine and so was my SIM card. Just in case, I haven't dared take my battery out since.
Sorry, this probably isn't much help to the other people experiencing similar problems

A quick update to this issue...
I tried reflashing the RUU again, and initially had no luck. 'No Service' at all.
In desperation I entered the boot menu, and noticed that when it came up it said something like:
PG58IMG not found!
I then decided to click the option - 'reboot bootloader' and the phone reset again. When it came back on, lo and behold it had a signal, and has done ever since. Weird.
The signal seems quite flaky, but it all seems to work at the moment apart from the weather app (location wrong) and a weird screenshot capturing bug.
Quite disappointed how buggy the stock HTC software seems to be, nice phone currently being let down by the software methinks.

I had the same problem also. Try flashing the latest radio (10.58.9035.00P_10.15.9035.02_2)
Don't forget the matching RIL! (IMPORTANT!) HTC-RIL 2.2.0173HMQ
I've never lost my signal again!
As for rowlarry, don't worry, HBOOT just checks if you have pushed a new radio.img
---------- Post added at 06:56 PM ---------- Previous post was at 06:38 PM ----------
So if any of you need help with flashing a new radio, let me know! Glad to help..
I know how frustrating a non functional sensation can be!

Did everything and still have no signal
boardking_zero thanks for helping but i tried to flash the new radio with the ril file after i installed the rom and it still doesnt work
i bought the phone from a guy on ebay he used it with tmobile and use it as orange
is there anything else i should try to do?
thanks!

i feel so dumb, i did the whole thing without the back cover which is also the antenna of the phone so thats why i had no signal and a weak wifi signal!

Seems that the problem resolves after some reboots... or what?

How did you flash the radio? Did you use recovery or adb? Because is you used recovery it won't work. The RIL you can flash with recovery.
So in case you used recovery, here is the method I use:
1: Download adb
2: Create new folder on pc's local drive and install adb there. Make sure that adb doesn't create a folder in your new folder
3: Extract the radio.zip on your pc and copy the radio.img to the adb folder.
4: Open cmd ( Start-Run-cmd-enter )
5: type cd c:\adb (If adb is located in C:\)
6: Make sure your phone is connected to pc, powered on(homescreen) and debug on
7: in cmd type, adb devices ( this wil start deamon and id your phone )
8: type, adb reboot-bootloader ( phone will reboot in fastboot USB )
9: Now type, fastboot flash radio radio.img
10: When it's done copying you type, fastboot reboot
Done! Radio flashed the 'safer' way..
Now you can reboot phone in recovery and use it to flash the RIL.zip
Make sure they match!
To check your phone's RIL: Use terminal emulator (market) and use this command:
getprop "gsm.version.ril-impl" This will show current ril
Another trick to reboot your antenna, on dial pad, dial *#*#4636#*#* then choose phone settings. If your default setting is WCDMA Preferred, try gsm/cdma auto (prl)
toggle radio off, then on. Make sure you exit using the Home button, this will save your settings.
Let me know how it works out!

PLEASE HELP ME
i have HTC sensation for Tmobile USE, it has been rooted and using method 1 to find the unlock code... after i enter the unlock code, it said "unlock successful" but i still don't get any signal for AT&T. Also everytime i reboot the phone it asks for the unlock code

hi friend i have the same problem in 2 htc sensation tmobile
i have htc unlocked by revolutionary succes PG58DIAG.nbh clean sc58 ok
but says no serviceee with all sim card
i flash with rom and repeat process of unlock but no signalll
please help me
best regards

Firstly Hi to all!!! I'm Yors from Valencia, Spain.
I'm noob but I have something to share with you.
I had the same problem with my HTC Sensation with Vodafone Operator when I tried to unlock it. I flashed it with SC58 cleaning system and then I tested my sensation with Movistar and Orange SIMs, result -> No signal.
I have solved it changing flight mode into normal mode sometimes (Restarting Signal activation) and waiting for two or three minutes in normal mode, after third change I got signal!!
Be patient and please search a place with good signal. Is very important search signal with rear cover mounted (GSM/3G Antenna is integrated on it).
I wish this help you!
Regards,

I received my HTC Sensation yesterday, and have been having terrible reception issues around my house. Mostly just getting "No Service", but then if I leave the phone sat for a few minutes, when I turn it on, there's 4 bars of signal, and without touching the phone, I sit and watch it disappear down to "No Service". WTF.
I was going to send it back after reading ALL the complaints about this issue with the sensation, but I had an epiphany... If the back cover is the Aerial (Antenna for you yanks ;-) what if it's just not connecting correctly?
In the back of the phone there's several gold contacts that connect to the back cover, I decided to just prise them up a little bit so they made better contact. After very carefully lifting each one by just a fraction of a millimetre the result was astounding! I now get about 3 bars CONSTANT signal (even when making a call) where before I would get "No Service".
I'll see how it goes for the rest of the day, but if this has fixed the poor signal problem I'll be so happy. I wasn't at all happy about having to send back my shiny new phone just before Christmas.
Hope this helps someone with similar issues.

Hi there
I have tried using the s58 unlock method. My phone is no longer rejecting the sim, but it will not make calls or send texts using my "Virgin UK" sim. it will, however, access the HSDPA data stream.
Points about the phone:
It was originally locked to "3UK" (H3G)
S/N: SH16JV802292
it is s-off, rooted and CWM is installed.
I am trying to use it on "Virgin UK". I have also tried an o2 sim, to no avail.
It will acces the Virgin network, shows signal strength and everything.
but only the internet is working.
I have tried Cyanogenmod7, BlackIce, XE stock, and original stock with the latest radio installed.
I have only bought this phone as a toy, and am willing to use it for any "guinea pig" tests or procedures which you might be able to offer.
Thanks for your time guys.
Gomez

lindatinh said:
PLEASE HELP ME
i have HTC sensation for Tmobile USE, it has been rooted and using method 1 to find the unlock code... after i enter the unlock code, it said "unlock successful" but i still don't get any signal for AT&T. Also everytime i reboot the phone it asks for the unlock code
Click to expand...
Click to collapse
Hi - I have the same issue. Have you found a solution for this.

Hi
I would like to add my experience of this...
I bought my sensation (unloacked) about 7 or 8 months ago and immediately rooted it and loaded the Revolution HD 6.7 ROM, etc. and upgraded thebattery to an Anker.
My phone worked perfectly from that point. Now suddenly about 2 weeks ago I started getting problems with 'No service' and 'No SIM installed'. I tried all the tricks like the piece of tape on the back of the sim to hold it more securely, I wiped all the contacts on the reverse of the phone and inside cover and prised the contact up a little to make sure.
But what i found was that if I was playing a game on phone it started to get very hot and all the heat is around where the sim and sd card are held. The the signal would be lost and rebooting would not cure it and sometimes the reboot made it go from 'no service' to 'no sim iunstalled'. In fact last night the same thing happened. My phone had just been chaged to 100%, I play a game for about 10 minutes and the signal was lost. I rebooted a few times and the phone is really hot. The battery went from 100% to 70%. almost instantly. I switched it off and left it over night. This morning I switched it on and the signal was back and the phone at normal temperature and the battery was now at 50%.
So it seems the phone is overheating and this is causing problems with battery draining or something.
I am wondering if I should flash a new radio but I am using recovery and I think it is not s-off (I think that is because of recovery) even though it is permanently rooted.
Anyway, I think this weekend I might upgrade to Revolution hd 7.2 and along the war flash a new radio (if this is possible).
Does anyone think the overheating is down to a fault or certain apps/games or down to the radio?
It's very frustrating when it happens. I am considering buying a Galaxy SIII for peace of mind as I can't have my phone playing up like this as my wife is pregnant and I need to be contactable.
Any thoughts?

Just after writing that post I went to check the phone using the #*#*4636#*#* code and my phone lost signal again. I went to aircraft mode on and the off and then the phone is saying 'no sim installed'.
I switched if off and left it for a while and when I switched it on it was fine. I went to check my gmail and it lost signal again.
I think this phone is now faulty. Any suggestions as to what I can try before I bin it? If I factory-reset it will I lose my custom ROM? Are there any benefits to doing the factory-reset?

FYI, I'm all sorted. It was the SIM.
Sent from my HTC Sensation XE with Beats Audio using Tapatalk

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i have just looked for a previous thread that i started but when i did a search for my name it comes up and says no threads found so i think it may have been deleted for some reason
my initial problem was with my desire, i bought it branded to orange from cex, i use vodafone so needed to get it unlocked, i took it to my local phone shop who unlocked it with an unlock code, it hadn't previously been used to make calls untill it was unlocked because it wasn't on the network i needed, anyway, as soon as i tried to make calls they would drop out constantly, couldn't hold 1 single call, some calls would last for a few minutes but would still drop out, i have tried everything suggested, using the aeroplane mode to try and sort it out and also changing the frequencies, none of this helped although when i tried to connect using only wmcda only the calls would drop out less and last a little longer...my firmware was never updated so the firmware on it was 2.1 .......i have since sent my desire of for repair/replacement and have contacted them today (since they have had it 3 weeks) and was told it is ready to be sent back to me and that it has had the mother board replaced...has anyone else had similar problems who had had a new mother board fitted and then the problems have stopped??? im thinking that when it comes back it will be as useless as a phone as it was when i sent it off
thanks
I don't have any ideas about the dropped calls, but here is your thread.
http://forum.xda-developers.com/showthread.php?t=776235
cheers, i couldn't for the life of me find it, even when doing a forum search for my name lol....strange

[Q] IMEI Trouble, Need help to recover

Need help with my issue. Here's my rundown: I tried to use my Infuse on Straight Talk. Before when it was on At&t, I flashed roms dozens of times with no issues. I was on CyberRom 4.2.2 forever, but the battery seemed to be running down fast. So at the same time I tried to get on the Straight Talk Sim Card program, I flashed my phone to Beanstalk 4.3 and then CM 11, 4.4. When I flashed over to CM 11, the phone called out but all I got was silence and the phone was stuck. Took the battery out and turned it back on and my IMEI has been gone ever since. I tried every single tool and trick here on XDA, everything I could find on youtube, and even other Android sites. Nothing worked. I either had a null/null IMEI or nothing at all when I dialed *#06#. The phone has been doing this since right before Thanksgiving and I have just been using it as a media player. The other day I switched the microSD card to get something off of another one and just like that I have signal bars. The baseband had a value and the IMEI was all zeroes. I got a little excited because there were at least signal bars showing instead of that damn dreaded circle with a line through it. So I decided to try the GTG Unbrick package and TruckerGlenn's efs.tar file. I found a froyo package and flashed that with the efs.tar file. All of a sudden I had an IMEI back with a baseband and everything!!!! I was really excited. But I noticed that A) when I compared the IMEI in my phone to what's under the battery, they are two different IMEI numbers...........and B) if i turn the phone off and turn it back on, the IMEI is gone again. It's like it's very unstable. I called Straight Talk to have them send me a replacement SIM card (now I'm using my Straight Talk on an old HTC EVO 4G, uuughhh!!) and now it seems like I won't even be able to use my Infuse. I love this phone and have enjoyed the flashing lifestyle on it, by far one of the easiest phones I've ever flashed. I need your help please. And yes I have spent almost two months looking and reading every page of every thread about lost IMEI's. Any suggestions would be greatly appreciated, may even buy you a bee.......a cup of coffee.....lol. Thanks

[Q] Google Nexus 5 - No Mobile Network Issue

Hello,
I am from India. I had purchased a Google Nexus 5 phone (Black/ 32GB) last year (December 20th, 2013)
I have started facing a serious issue since yesterday. My entire mobile network went down all of a sudden. Tried using other SIM but of no use. The same SIM works fine in other phone. Other functions including WiFi in Phone works perfectly fine.
A couple of things that I noticed are:
1) When I try to search for the Network manually, I get the message "Error while searching for Network".
2) I noticed that the PREFERRED NETWORK TYPE is defaulted to LTE. I cannot select any other option 2G or 3G.
3) When used Choose Automatically option - it starts with Automatic Registration and then flashes an error "Can't connect to this network right now try again later"
I tried doing a Factory reset hoping that it would work. But, no success. Have contacted LG Direct Service Center (since I bought it from retailer and not from GooglePlay store) and they suggested it's a PCB problem and it needs to replaced which would cost me around 12K INR. Which I am not ready for.
Please let me know what needs to be done. Any help is highly appreciated.
Regards,
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Turn off airplane mode
dicecuber said:
Turn off airplane mode
Click to expand...
Click to collapse
He's clearly not in airplane mode.
I have tried with all basic troubleshooting options, kindly check the attached screenshots. Please please help needed urgently.
I was going to make a new thread, but his problem matches mine almost exactly.
Hi guys, i have this problem for over a week now.. A very frustrating week i must say. I got this n5 about a month ago, my uncle got himself a G3 and gave his nexus to me.
Everything was smooth, amazed by the phone, everything working fine, happy as hell. It all crumbled when I went to spend the holidays at my brothers, where he lives my carrier doesn't work (everyone uses another one). When i got back to my house where the mobile network works fine it just stopped. All other sims would work on my phone and my sim work on other phones.
I gave it a time, thought it would be cause i spent too much time on my brothers and it would be ok after a while. It didn't. Then i started to worry and try to fix it somehow. First i got a new simcard (same carrier), no bueno. They told me to restore my phone and stuff, it didn't work. The phone has always that empty triangle, doesn't matter if it's 3G, 4G or 2G.
So I came to the internet look for help. I saw that some people had bring this to the LG, their response was to do a recovery with fastboot and then put 2G on the mobile network. For a moment i thought it was over, my phone finally had some bars !! But to my disgrace I can't make nor receive calls, i can only send/receive SMS and access internet thru 4G, not 2G as the support said. Oh, if i put 3G or 2G dem bars go missing and the empty triangle ****er appears again. Still, my simcard works on every other phone but now only one carrier works on my phone (not mine unfortunately).
Then I started looking on forums like this one and a whole bunch of others and tried many things, all of them unsuccessful.
I tried many things, maybe forgot some but will list those that i remember.
I tried to flash the factory rom. Then tried to flash only the radio of previous androids (tried too many of them to count). Dialed that *#*#4636*#*# or smth, put LTE/GSM, only LTE, activated/deactivated radio. Airplane mode on/off. Tried to recovery on fastboot again. Tried to make new APN. To finish my story, put a Cyanogemod rom and it also didn't work.
So now i decided to post here as my last shot before i go to that carrier that still works. Also, what guarantees that this carrier won't stop working like the others? I'm afraid that may happen. Further informations, i saw many people complaining about T-Mobile and other carries, but I'm brazilian, so it's not one of these. My carrier is Oi and the one that still works is TIM.
The two threads i got most tips were these and some sites in portuguese:
http://forums.androidcentral.com/google-nexus-5/357547-nexus-5-cell-signal-problem-s-fix.html
http://forum.xda-developers.com/google-nexus-5/help/bug-make-receive-calls-wifi-enabled-t2839814
Thank y'all in advance and sorry if my english make it hard or impossible to understand.
My fingers are crossed!

[Q] Cellular modem and NFC unstable

Hi,
I hope someone could help me save a useless phone.
I got a Z3 from ebay (it's O2 Germany). As soon as I turned it on it updated to 5.0.2.
Then later I inserted the SIM card (took me some time to get the nano from the carrier).
It's not SIM locked.
The problem is that I can't get a steady signal. AT ALL. It hits a signal for 2 sec, then nothing.
It can recognize my carrier in the split second that it's on, I got the access points and all. I can even search for carriers and get a list of several to choose from.
The same phenomena is apparently happening with the NFC - the software switch turns on then straight off (same radio chip issue?)
I have tried GSM only, WCDMA only, LTE.
Tried changing the bands used using the internal *#*# menus.
Using flashtool I have flashed a stock global rom instead of the german. And local stock.
I have read that some people had this issue after the lollipop update so I rolled back to stock 4.4.4, same issues with cellular and NFC.
I'm really at a lost. I have this fancy brick that I was hoping to give my dad (he needs the screen size, the old fool) and instead I'm wasting valuable time at work trying to fix it...
Anyone?
Thanks,
Juv.
J_McBurst said:
Hi,
I hope someone could help me save a useless phone.
I got a Z3 from ebay (it's O2 Germany). As soon as I turned it on it updated to 5.0.2.
Then later I inserted the SIM card (took me some time to get the nano from the carrier).
It's not SIM locked.
The problem is that I can't get a steady signal. AT ALL. It hits a signal for 2 sec, then nothing.
It can recognize my carrier in the split second that it's on, I got the access points and all. I can even search for carriers and get a list of several to choose from.
The same phenomena is apparently happening with the NFC - the software switch turns on then straight off (same radio chip issue?)
I have tried GSM only, WCDMA only, LTE.
Tried changing the bands used using the internal *#*# menus.
Using flashtool I have flashed a stock global rom instead of the german. And local stock.
I have read that some people had this issue after the lollipop update so I rolled back to stock 4.4.4, same issues with cellular and NFC.
I'm really at a lost. I have this fancy brick that I was hoping to give my dad (he needs the screen size, the old fool) and instead I'm wasting valuable time at work trying to fix it...
Anyone?
Thanks,
Juv.
Click to expand...
Click to collapse
I got the exact same problem, im in Norway and using mye Operator firmware..
I'm having the NFC problem. I have the US T-Mobile version (D6616), and NFC stopped working right after I updated to Lollipop.
Factory reset, and repairing using Sony's PC Companion does not help. On first boot, i'll get a "NFC firmware update failed (-1)".

CDMA radio problem. Please Help. I've used search

Hello, I'm having a major problem with my phone and I'd be extremely grateful for any help or expertise.
PROBLEM:
I cannot get any kind of CDMA signal on TWO Verizon HTC M8 (I didn't post in that specific thread for a reason, I'll explain, please don't move it).
--------------------------------------------------------
HOW THIS HAPPENED:
The first phone, I was using as normal and it was fully functional.. One night i flashed a ROM and ended up falling asleep before if built the ART cache (so it was just playing the bootanimation) and the next morning I awoke to find the boot animation still running. The phone wasn't hot but ever since then I could never get any kind of CDMA service (so i can't use my carrier.)
The second one i just bought and put my sim in and BAM. Same problem.
--------------------------------------------------------
MORE DETAILS ON THE PROBLEM:
If i put my sim in, i can usually get 4G data but can NEVER get any lower bands. CDMA settings are greyed out in settings. This persists across ROMs and radio firmwares. My immediate thought was to get a new sim but my sim works absolutely fine in my LG G2. The sim is cut from a microsim but the point there is it worked fine before (and still works in my G2) and it didn't shift in the tray. I tried my friend's sim from an Iphone 5s and it did the same thing. I've tried everything i possibly know to do. This problem has basically cost me $400 dollars or 2 M8s.
Even if i go into the phone info hiddenmenu, i cannot select the CDMA or EvDo bands by themselves.

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