HTC One X - Signal Drop Out and Not Regained

[GaWill]

Hi

I have had a HTC One X for the past month, however this problem has been gradually getting worse.

Mainly in work but its also happened other places i can have a great signal and be on HSDPA or 3G, then i will move to somewhere such as the kitchen area in work and the signal will drop out. I will then return to my desk and put the phone in the exact place it was getting full signal and data connection but the Signal will not come back. I will get the No Signal message.

I have tried leaving the phone for over 30 mins but the signal doesnt come back and also looking for the network manually but it doesnt find it.

However, if i restart the phone the full signal and HSDPA/3G connection will come back.

Is this a fault with the phone or a strange network issue?

[nickkr]

Does this happen in all locations when signal is lost? Yes

What postcode does this happen in? SN12 but can be anywhere

What software are you running? 1.29.161.13

Do you have a Vodafone or an open market (unbranded) handset? Vodafone

Does this happen if you change the network settings to WCDMA Only? Haven't tried yet.

This is now getting rather tedious.  I was in the centre of Bath yesterday and my phone was stuck at "no Signal"  siince leaving the signal dead zone  where I live 10 miles away

 A quick airplane mode toggle and wham  - full signal.

I guess I'm just going to have to check regularly that  I am connected and not assume I will reconnect once I get a couple of miles from home. Not a particilarly satisfactory situatuion but I like the  phone enough not to give up on it  quite yet.

[AWCMember1507]

I'm getting a similar issue connected with the constant need to complete the Vodafone Wi-Fi set up. I've reinstalled the My Vodafone app as per other posts so will see if that sorts one problem but often when I go from Wi-Fi back to mobile, it either doesn't come back unless restarted or takes a long time to re-join the network.

[Retired-Wayne]

Hi Everyone,

Thanks for providing your firmware versions along with the other information. I have now passed this onto James so he can add it to the case for investigation.

Thanks

Wayne

[stevepf]

Seems we are not alone with this issue users on other networks reporting same symptoms here

http://forum.xda-developers.com/showthread.php?t=1738067

[Retired-James]

Hi guys,

Thanks for all of your details we now have enough examples of this issue and they have all been added to the case that has been raised to our devices teams.

We are currently investigating this and will be engaging HTC with our findings, at the moment I don’t have any further updates but will let you know once I do.

James

[JamieTaylor]

Add me to the list as well please, have just seen the thread but been having this problem for over a month. I am having other problems as well like WiFi remains connected but browser doesn't load anything, GPS not working making any GPS program useless.

I'm getting the preparing SIM Card message every time I either turn Flight Mode off or restart/turn handset on.

Does this happen in all locations when signal is lost? Mostly yes

What postcode does this happen in? MK40, MK42 8JY, MK44, NW10 1PH (work)

What software are you running? 1.29.161.13

Do you have a Vodafone or an open market (unbranded) handset? Vodafone

Does this happen if you change the network settings to WCDMA Only? Just went to check & it was already on.

Hope this helps, It's really bugging the life out of me. Ironically, my GF's handset in white has identical software and settings but all works okay with no problems. Mine is a grey handset. dunno if that makes any difference.

J.

[DavidHOXT]

I contacted HTC they instructed that i; dial *#*#4636#*#* select gsm auto and this will rectify the problem. 2 days now and problem is completely fixed!

[DavidHOXT]

With regards to your signal dropping, I have had a couple of similar cases both of which had Vodafone branded HTC One X phones, can you please let me know if this is the case with you, if you are unsure I can check for you, all I require is your phone's IMEI or Serial number.

Please try changing the network mode to GSM Auto, this will adjust the threshold at which your phone switches between 2G and 3G as there have been previous issues with network branded devices dropping the network connection when in a weaker 3G area as the phone struggles to maintain the 3G connection.

1. From the home screen, tap Phone. 2. Enter *#*#4636#*#* 3. Tap Phone information. 4. Scroll down, then tap Preferred network type. 5. Tap GSM Auto (PRL).

Additional details 🙂

[shamusb]

No problems since 11/7 after sim tape mod, working 100%

[nickkr]

Has there been any prgress on this ? Has HTC been able to offer guidence?

It has been suggested that using the  *#*#4636#*#*  sequence to set he phoent o GSM Auto (PRL) will resolve the issue.  Does Vodafone   officially endorse this course of action?

The last thing I want to do is makes chages in a service menu only to have Vodafone at some stage accuse me of "fiddling" and thereby void any warrenty.