HTC P3450 Network Connection Problem

[turbulence2009]

I am having a problem with my HTC Touch P3450 phone for the past 2 weeks. Although the GSM signal looks good, I am not able to make/receive calls. I am on "Phone" mode (not Flight Mode or similar). Everything else (WiFi, programs etc.) works fine.
My operator is Turkcell and I live in Istanbul, Turkey. The phone was purchased from the United States.

I have done a ROM update to ROM version 1.17.707.2B WWE but the problem still exists.

Has anyone else experienced this kind of problem? I suspect that this issue has something to do with the 3G upgrading process going on in Turkey.

[jeremy89632]

Can you try to use your friend's sim card and see whether it works.
Is it something like a dropped call?

[turbulence2009]

I tried two different SIM cards, one with my operator and one with another operator. I am still having the same problem.

The problem is that I cannot make any calls at all, rather than dropped calls.
Also I cannot take any calls, when I call myself from another phone it goes to voice mail as if the phone is turned off.

I guess it is a hardware problem then.

[jeremy89632]

I tried two different SIM cards, one with my operator and one with another operator. I am still having the same problem.

The problem is that I cannot make any calls at all, rather than dropped calls.
Also I cannot take any calls, when I call myself from another phone it goes to voice mail as if the phone is turned off.

I guess it is a hardware problem then.

I think its time to change your phone's radio. go to the elf-upgrading section to find out more.

[nospheratus]

Hi, i have the same problem. When I make a soft-reset on my Elfin it has signal, but just 3 or more minutes after i cloud not make any calls and if someone try to call me they receive the message that my cellphone is off. Rigth now i am performing a radio upgrade and i will let you know if this is the solution for the problem, if you are done with this please let me know how to solve this.

[simoluimeme]

Hi I have the same problem with this phone, can some one of you tell me witch is Radio ROM is the best for HTC ELF.
Thank you guys

[dubberz]

I think that this is a common problem on Htc Touch, cause i have exactly the same problem.

[mrwavexu]

I have this problem too
I upgraded new radio 3.34.90 but the problem still make me angry
Call ended itself, i tried 3 4 sims from 3 4 operator

[dubberz]

Same problem.

[mytime545]

i have same problem sometimes network gone automatically but signal shows full but after reset it starts perfect. thn after somtime same prob?

is thr any solution?

[viveklkw]

same problem here (P-3452 Elfin)

[akshgreater@gmail.com]

Hello there.....
I am from Bangalore,India. i was using BSNL SIM for 2years. suddenly one day the Sim was dead. i thought sim problem so replaced 2 times after that got AIRTEL Sim. now its working fine. the problem is with 2 or 3 carrier operators. STRANGE!!!!!!!!

[ashkan62]

i have this problem too nobody to help pelease
tanx

[ashkan62]

please some one help me.....

[captainstu72]

I have been investigating this issue on and off for a few months now on one of my elf’s. I originally bought this phone off eBay to test stuff, and found no signal was being received when I got it. The auction did say this so fine. Checkmend says it is not blocked in any country, and is not stolen etc. Therefore, it is definitely something on the phone opposed to networks.

The phone can pick up signal, it noes networks exists, and can identify them, however, when registered and "connected" it does not pick up messages, and when I try to make a phone call the signal completely drops.

I like others have tried many roms. I have even tried every signal radio. I have also tried 6 different working Sims across a number of operators.

Basically, I think this issue is hardware, I mean, there really isn't anything else that I can think off. I have done some reading, and I *think* it may be down to the PA chips. There are 2 off these in the phone, one for Radio signal, and the other for Bluetooth, and wifi. (I think that is it).

These are located just above the battery on the back of the circuit board from what I can see, protected by 2 parts. One removable (two top screws - also contains the speaker) and one fixed into the middle part of the body.

I've done some playing, and it seems may be easy to break, either by dropping the phone, or even possibly by something as little as keeping the phone in a pocket and sitting on it.

I am not sure where I can go from here. I may need to investigate this further, but it is looking like it is going to be a dead end, considering I am not able to BGA solder to replace it, and expect the cost in doing so outweighs buying a new phone. I'm going to look into signal amplifiers, and see if I can find one that’s not just a piece of tin foil, and actually works. It will be interesting to see if that will improve the signal far enough for the phone to be usable once again. I may even just try with some kitchen foil, or by plugging in an external aerial (which I do not have yet, and may be costly, and therefore no point). If the external aerial works, I guess the chip could only be damaged, and not able to get enough strength itself.

This is only a theory on what I think is wrong with my Phone, and may be different to what everyone else’s is. But i thought I should put it out, to see if anyone else is able to confirm/kill my idea. It is a theory after all, they are made to be proven!

If anyone else has any ideas, feel free to pitch them, I like hearing what others are thinking, and it may be possible, although I admit very unlikely, that we could find a resolution to this issue!

Stu

[captainstu72]

@ashkan62 (http://forum.xda-developers.com/member.php?u=1194641) , can you provide a detailed problem please, this may give me something more to look at that I have missed.

[cnergy_14]

wow. that's really informative. I've done upgrading radio roms too and even the spl. but nothing happened. hope your investigation on this works. thanks for the info.

[cnergy_14]

or how about upgrading the o.s.? did someone tried that? coz I'm planning to upgrade my elf wm6.1 to wm6.5 and onyx 4 to onyx 6. would that work? what do you think?

[tito12]

or how about upgrading the o.s.? did someone tried that? coz I'm planning to upgrade my elf wm6.1 to wm6.5 and onyx 4 to onyx 6. would that work? what do you think?

I think it can't harm to try, be sure to follow the right procedure.

[cnergy_14]

Yeah. I'll try to do the upgrade this week. I'll inform you if anything happens. (like bricking my phone. :))

[captainstu72]

@cnergy_14 I've tried all Onyx roms, ATHAR roms, blue elves, and many other roms I could find for the ELF. This did not yield any success, I have tried different combinations of SPLs and Radio roms as well, its been pretty pointless in the sense I have not had any results.

I've not yet managed to get an external antenna - I've been busy with work, and short on money due to Christmas (bye bye bank account).

I'm going to try and get hold of one soon, I may need to head down to a maplins or something at some point to see what I can find.

Also, make sure you read the stickies, and all should be fine.

[cnergy_14]

@cnergy_14 I've tried all Onyx roms, ATHAR roms, blue elves, and many other roms I could find for the ELF. This did not yield any success, I have tried different combinations of SPLs and Radio roms as well, its been pretty pointless in the sense I have not had any results.

I've not yet managed to get an external antenna - I've been busy with work, and short on money due to Christmas (bye bye bank account).

I'm going to try and get hold of one soon, I may need to head down to a maplins or something at some point to see what I can find.

Also, make sure you read the stickies, and all should be fine.

I see. hhmmm... then there's only one thing to do. Buy a new one I guess. Although I really like this phone. I've also been trying to do something with my phone like soldering the antenna and doing manual signal searching. It can search something but it cannot receive any calls or text. But I'll still try to upgrade the wm. Hope there's still a chance for this phone.

[captainstu72]

@cnergy_14 Mine also can search, but it is not able to receive/make calls, or send or receive texts. It is a little bit annoying that this is happening, the fact it can pick up a network, but not action anything just seems like something is going wrong with the hardware, either the signal keeps dropping, or it is weaker then it thinks. Or, the chip is just dead, I'm starting to think it is the later now, but I don't want to abandon hope just yet, it seems such a shame to do so, when this phone is actually a pretty decent phone for its age.

(Also to the new phone, android ftw :p)

[cnergy_14]

Hi,

Just a quick update. I've upgraded to WM 6.5 full CeROM. It can still search for signal. The funny thing is, it indicates the "G" on the signal (I don't know what it stands for. :). But I know is that it means the signal is strong.) But when I try to call, it says call is unavailable. So, I guess upgrading to WM 6.5 would not help also.

[captainstu72]

same, G = GPRS. Data connection, but again, trying to connect to it for me kicks it all out again back into a search loop. Its rather annoying!

Still looking into this, although I am now feeling like it is in vein!

[cnergy_14]

Hi Guys,

Ok. Here's the thing. My cousin talked to me about my htc elf. He said to me, "your phone is still not working upto now?" I said yeah, why? Then he told me that he used my phone to look for porn websites. Isn't that wonderfull? I didn't know that. Then I remembered that was the day he said "the signal is off, you just have to restart it".

My question is this, I know some porn sites have viruses. Does it by anyhow infected my phone which caused this signal problem? I didn't thought about it the last time, just yesterday when he told me that.

Please help. Thanks.

[captainstu72]

Can't say I have ever done this activity, I guess you could try an anti virus to check, but I do doubt that was what caused it, more just a coincidence...

[tito12]

Hi Guys,

Ok. Here's the thing. My cousin talked to me about my htc elf. He said to me, "your phone is still not working upto now?" I said yeah, why? Then he told me that he used my phone to look for porn websites. Isn't that wonderfull? I didn't know that. Then I remembered that was the day he said "the signal is off, you just have to restart it".

My question is this, I know some porn sites have viruses. Does it by anyhow infected my phone which caused this signal problem? I didn't thought about it the last time, just yesterday when he told me that.

Please help. Thanks.

Higher probability that he dropped the device due to some disturbing sight or activity ....:D:D:D

[cnergy_14]

hehehe.. thought so too...

[captainstu72]

Quick update.

Just to rule out firmware/software, I have tried task29 on my signalless elf. unfortunately, that puts me in the same position as before. Definately looks like it is a hardware issue. I have started hunting an aerial now that will work on the phone, so will see what ebay will yield for me.

Worse coems to worse, I'll buy some of them pointless signal boosters and see if they actually do anything, I remain sceptical of them :p

Just thought I should keep you all updated on my progress.

[captainstu72]

just done some searching, and came across this:

If I reset the phone before customization (after hard reset) - with other words I skip the customization - there's no such problem.

Going to test this one later on and see how it goes, will update this thread.

[captainstu72]

Well, it didn't make the slightest difference. Only 3 things left to do..
1. Restore stock rom... which I do not have
2. Try with an antenna
3. Try some more and finally give up.

I'll update this again when I have tried some more, I'll see what I can find on Ebay for an antenna or phone with same stock rom.

Stu

Sent from my HTC Hero using Tapatalk

[cnergy_14]

Hi guys,
Just wondering. have you tried the Axebox? i'm givin' it a try today. hope it would resolve our signal problem. i'll update you guys. got to go.

[captainstu72]

Hadn't heard of axebox until you mentionned it, definately looking forward to seeing what success you have.

[cnergy_14]

actually. i think it's a device. and i don't know where to buy it here. :(.