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Hi Folks
My Hermes/Tytn is an Orange M3100. Recently it has begun dropping calls, or rather, ignoring them. The caller could hear a ringing tone but the phone wouldn't switch on, show me an incomming call or anything. A short while later, usually after I'd switched it on (I mean, the screen, "off" is that it's on standby) I'd get the notification of a missed call. More often than not it would come through after I had made a call.
This reached a "point" on the weekend where I missed about 17 calls from the Agency to get work for me as I was the only one available
So. I upgraded as reccomended on here. Up to HardSPL 2.10, Radio version 1.41 and then upgraded to Schaps 4.22 WM6 Rom.
Now, I made sure that ActiveSync has connected and synchronised, and all my contacts and PIM info is in Outlook. However, A/S won't transmit the information to the PDA, even though it tells me it's synchronising.
The only way I have managed to get my PIM data/address book back onto the PDA was by running a custom SPB backup file to restore the calender, sms and phonebook.
This is where the fun starts. My PIM and Tasks then go "read only" merely by having a warning telling me I have no memory and to go and close other programs down. But there isn't anything else running!
Fine. Right. Ok. Obviously I've done something wrong. I did a hard reset this evening. It wiped all the data internally and reset it. I changed the details to match the username that was already stored in A/S and plugged it in.
It tells me "Connecting" and the green thing swirls around but doesn't actually do anything.
I have heard mention of the MTTY software, so I've got that here. But it won't allow me to connect on USB, only Com1, 2 or 3.
So I've a pretty useless phone at the moment. It's got none of my files on there, the satnav is rendered useless merely because I can't install the sod and all the other problems to go with it.
Short of screaming abuse at it and throwing it across the room I'm a bit stuffed. And I can't spend anymore time on it as I've got to be getting up for work at 4am (only finished tonight at 8pm ) for another full day
I've read the wiki, I've gone through the pages and pages and, er, pages of posts but I'm hitting a brick wall somewhere. I'm not as bright as you guys, but I get by.
TIA. Elwyn
Welcome to the world of HTC!!!
http://forum.xda-developers.com/showthread.php?t=352413
http://forum.xda-developers.com/showthread.php?t=352413
Try disabling the enhanced feature in your usb to pc settings on the device. Also try removing and reinstalling activesync, I have to do mine roughly once every fortnight or so and I'm on the latest build of AS4.5
Elwyn M3100 said:
Hi Folks
My Hermes/Tytn is an Orange M3100. Recently it has begun dropping calls, or rather, ignoring them. The caller could hear a ringing tone but the phone wouldn't switch on, show me an incomming call or anything. A short while later, usually after I'd switched it on (I mean, the screen, "off" is that it's on standby) I'd get the notification of a missed call. More often than not it would come through after I had made a call.
This reached a "point" on the weekend where I missed about 17 calls from the Agency to get work for me as I was the only one available
Click to expand...
Click to collapse
This has now improved, with most calls going through. Possibly only the Radio upgrade was necessary, but, hey, I've done it now
Elwyn M3100 said:
So. I upgraded as reccomended on here. Up to HardSPL 2.10, Radio version 1.41 and then upgraded to Schaps 4.22 WM6 Rom.
Click to expand...
Click to collapse
This had actually been fully backed up. Apparently.
Elwyn M3100 said:
Now, I made sure that ActiveSync has connected and synchronised, and all my contacts and PIM info is in Outlook. However, A/S won't transmit the information to the PDA, even though it tells me it's synchronising.
Click to expand...
Click to collapse
The drawback I had was A/S wasn't telling me it was done, or that it was doing anything. I still don't know how to fix that if it happens again
Elwyn M3100 said:
The only way I have managed to get my PIM data/address book back onto the PDA was by running a custom SPB backup file to restore the calender, sms and phonebook.
Click to expand...
Click to collapse
At the time it seemed like a good idea
Elwyn M3100 said:
This is where the fun starts. My PIM and Tasks then go "read only" merely by having a warning telling me I have no memory and to go and close other programs down. But there isn't anything else running!
Fine. Right. Ok. Obviously I've done something wrong. I did a hard reset this evening. It wiped all the data internally and reset it. I changed the details to match the username that was already stored in A/S and plugged it in.
It tells me "Connecting" and the green thing swirls around but doesn't actually do anything.
I have heard mention of the MTTY software, so I've got that here. But it won't allow me to connect on USB, only Com1, 2 or 3.
So I've a pretty useless phone at the moment. It's got none of my files on there, the satnav is rendered useless merely because I can't install the sod and all the other problems to go with it.
Short of screaming abuse at it and throwing it across the room I'm a bit stuffed. And I can't spend anymore time on it as I've got to be getting up for work at 4am.....
I've read the wiki, I've gone through the pages and pages and, er, pages of posts but I'm hitting a brick wall somewhere. I'm not as bright as you guys, but I get by.
TIA. Elwyn
Click to expand...
Click to collapse
Ok, as the first reply said, YES. The USB advanced thingy was checked. Once that was sorted then it sync'd. I still couldn't write to the PIM/Messaging/Phonebook but I could get it backed up. Once that was done I did a hard reset, then before I plugged the "fresh" install into the computer I set up the variety of settings (machine name, usb advanced, name etc) THEN plugged it in. System recognised it, and then proceeeded to "restore" the relevant details of my PIM/Addressbook/Messages.
I think the restore from SPB was being written to a part of the memory that it wasn't supposed to. Either way, I've stopped using SPB Backup now.
The phone works well. I've even got all the SatNav software installed and working on it. The installation from the memory card didn't take that long, once it was working propperly. Which was good as I did all of that "out on the road" away from the computer (I was in the passsenger seat then).
The only issue I have noticed now is that the battery seems to go quick...
Anyway, thank you for your help. I can now go and have some xmas shopping to relax with....
Cheers
Elwyn
Glad to hear you got it working, for backing up your contacts, messages etc I'd recommend PPCPimBackup, if you do a google you should be able to find it easy enough.
Have a good Christmas.
This happened three times in a year, with both WM5 and WM6. Trying to make a call gives 3 short beeps and the call ends. Others calling me get a busy signal. There is good signal reception and interestingly, GPRS connection also works fine.
In the first two cases, removing the battery for a few minutes helped (tried to remove it for just a few seconds first, that wasn't enough). The third case was different, I couldn't fix the issue until I have put the SIM into another phone (an old Nokia 6110) and logged on to the network. After this, calls worked again.
This is very annoying since I only notice I am unreachable when trying to make a call or somebody reaches me by other means and tells me. I'm seriously thinking about selling my phone.
Any help would be greatly appreciated in fixing this.
I think you should talk to 'M' about that...... LOL
Have you tried a Hard Reset of the phone? you will lose Contacts and Messaging info unless you back it up to the Card.
Check wiki for how to do a Hard Reset.
It does look like a SIM fault though...... get your provider to supply a new one.
No, I didn't try a hard reset, I assumed that removing the battery resets whatever goes wrong in the GSM chip. It seems to me that the phone sends something to the GSM tower that makes it think I'm unavailable for calls (if put the phone near a speaker and try to call myself from a landline I can't hear the usual communication noise, If I try to make calls I hear it tries to communicate for a second before it fails). Turning the phone off and on doesn't make it forget, only logging on from another phone fixes it.
The SIM is old indeed (~10 years) but I don't think it can be the problem, as I said finding the network and establishing a GPRS connection works.
old sims have been a problem with all htc phones
but at least here the providers send customers new sims if they request
it for free
give it a go
Thanks, will try to get a new SIM and wait a year to see if the problem is gone.
I used to own a T Mobile MDA Compact 3 which I believe is the same as the Artemis.
The phone worked fine for me over the 18 months I had it. However I've since sold this phone on ebay and the buyer has reported a problem where it keeps cutting off via email.
I don't know if he's pulling a fast one or if this is a genuine problem. If it is a genuine problem how do I fix it? Any help would be appreciated.
The only problem I've had with the phone is a screen problem on it in January and went back to T Mobile for repair. They sent it back with a replaced screen and WM6 on it which the buyer is saying is likely to be the cause of the power cut outs.
If it is WM6 does anyone know how to downgrade the device back to WM5? Any help appreciated.
Rather than paraphrase his emails I'll just list them in order received:
Email 1 received:
"hi.. this phone keeps switching off compeletely. each time i have to restart. sometimes its after 10mins other times its later. do you still have any warranty on it? if so can you post me paperwork and i can possibly have it repaired. if not then its faulty. it just keeps randomnly switching itself off. ive tried hard resets. even downloaded latest roms from tmobile website for compact 3 but still no success. ?? only other thing i can try is reinstalling windows mobile....."
I asked him for the link used to download the rom:
Email 2:
"tmobile direct.. under support and software.. i worked for 02 providing data support on pdas for 7 years and now own a 60 seater call centre in manchester and sell consumer and business mobile phones.. look at my feedback. ive bought and sold many pdas. im familar with them. backlight and power settings are unticked. it just completely shuts down. same as would when you would when you do a soft reset. after a hard reset the only thing you can really do is make sure the latest rom or software is installed. its an intermittent problem and i cant replicate it all the time. when it does it just switches off completely. no error messages at all. on standby it fine. its when your using the phone, any application or even on the internet. did wm6 come with the phone or did you install this yourself. ive noticed wm6 is not available on this model by tmobile. they have taken it off their websites.. ive used wm5 and have never experienced problems with them. if wm6 was an upgrade do you have wm5"
Email 3:
"i will try another battery as i have more mda compact 3's... if it works with another battery. no probs. i'll keep it. if it doesnt then i will have no option but to return as its faulty. could well be the battery if you have used it for about 18mths.. will keep you posted. thanks"
Email 4:
"i have done a little more testing and here is a problem that i can replicate every 5-10 mins.. the phone itself if not used does not switch off. its when its used that i have the problem. i have noticed in the about section the phone originally came with WM5. so maybe its the WM6 that is not fit for the phone? WM6 is not available and not supported on this model by Tmobile. Anyway. if i log onto to the internet via gprs and am physically browsing after a few mins the phone will reboot itself and switch off. so if im on the internet but not actually browsing and have just a gprs session active, the phone is fine. its only when i am actually browsing a site - it can be any randomn sites its not linked to any one site.. regards bash - hope the above makes sense.."
Email 5:
"i still have not had chance to try with a different battery but when i do i will let you know. i dont think you are a rip off merchant at all. im just letting you know the problems i am experiencing. its not just the internet. its also when i use my own 3rd party software which i use on other mdas orbits and spvs and works totally fine. i will speak to tmobile in the morning and see if i can get wm5 off them as i think its related to wm6. if the battery or wm5 does not fix it then i will have no choice but to return it. will keep you posted. regards"
bump.
Any help really appreciated.
I have the very same problem here !!!!
Dont think its the battery because it started from one moment to another with a FULL battery
I had the same problem with my phone turning off during use for no reason even when the battery was showing it was charged.
I replaced my battery and all seems to be OK now.
See thread http://forum.xda-developers.com/showthread.php?t=543194
Regards, Alistair
Why does this phone have to be soft reset so often...
Why does it eventually lag and hang up all the time randomly? I tried so many different roms and they just all result to the same problems after a few weeks use.
Is there no way to make this phone reliable???
I am ranting because I missed my job opportunity with a really big company because my phone froze when they called me and didn't receive my voicemails till days later for what ever reason....
This was the one and only time I really didn't want my phone to hang up, and it had to happen when the company CEO decided to call me back, but since my phone was stupid I wasn't able to respond to the offer in time (2 days later)...
Please... I'm tired of these Windows Mobile Problems...
Dang, that was a bad break. srry that happened to You. dayuum..i know u was pissed. so did it freeze up on u with the stock rom or some custom one u flashed to it? i never had my stock rom freeze up on me. Only when i was constantly trying new apps and downloads or drivers, it tried to act funny. Id reapply for that position and if u get to the point of call back again, take it and try to explain what happened the first time. All isnt lost, just keep your head up and keep trying.
demandarin said:
i never had my stock rom freeze up on me. Only when i was constantly trying new apps and downloads or drivers, it tried to act funny.
Click to expand...
Click to collapse
Me too. Anyway, wish you luck if you decide to call back CEO and explain whats happened.
SlimJ87D you got pm
Sue Microsoft for selling you software that's not fit for purpose. It could turn into a class action because I'd say that statement could well be true about lots of software they sell.
Having used the TP2 for half a year, I have had none of the problems you mention.
mhurg said:
Having used the TP2 for half a year, I have had none of the problems you mention.
Click to expand...
Click to collapse
I have been using WM for almost 4 years and everything SlimJ87D mentions makes total sense to me
i've been using WM since 2003 (7years exactly this august) and i cant remember the last time my device has hung up on me where calls/msgs didn't come in.
Also i'm what you'd call a power user, multiple apps open at the same time and doing 3 things at once.
The majority of lock-ups are from low ram. So just make sure you ram is always good, doing a system cache/temp file clean every now and then (i use dinarsoft's memmaid) and you should be good.
Also sometimes a buggy software will cause the device to freeze, up to you to figure out which one it is if you suspect one.
Best of luck and sucks about that job.
About 2 years ago my exchange server went down without me knowing and wasn't getting emails, when they finally did come through the next morning, i had received an important email concerning a contract deal, called the person back and they had gone with a competitor because i didn't reply soon enough. Lost some money on that and still pissed about it but technology does that to us every now and then.
dik23 said:
I have been using WM for almost 4 years and everything SlimJ87D mentions makes total sense to me
Click to expand...
Click to collapse
A lot depends on the phone model and how well you tweak it. I've not had any trouble once the phone was operating correctly. This is one thing that is both a drawback and an advantage of WM - it is flexible, and rewards anyone who takes the time to get to know the OS and the particular phone model.
If you really want "out of the box" experience with any tweaking, I'd go for a different OS.
SlimJ87D said:
...all the time randomly?
Click to expand...
Click to collapse
lol... .
SlimJ87D said:
Why does this phone have to be soft reset so often...
Why does it eventually lag and hang up all the time randomly? I tried so many different roms and they just all result to the same problems after a few weeks use.
Is there no way to make this phone reliable???
I am ranting because I missed my job opportunity with a really big company because my phone froze when they called me and didn't receive my voicemails till days later for what ever reason....
This was the one and only time I really didn't want my phone to hang up, and it had to happen when the company CEO decided to call me back, but since my phone was stupid I wasn't able to respond to the offer in time (2 days later)...
Please... I'm tired of these Windows Mobile Problems...
Click to expand...
Click to collapse
Wait...your phone froze while you were talking to the CEO of this company, and you couldn't call him back for TWO DAYS???
Ever hear of using another phone? Or a land line?
And I'm not sure what your problem with voice messages was. If you left them messages and they did not receive them, it's their voicemail systems fault, not WinMo's.
If WinMo did not notify you of voice messages that you had waiting, then simply call your voicemail number regardless of whether your phone says you have any or not. You could even call it from a different phone. Not doing so, especially when you are expecting important calls, is simply negligent. Every phone I have ever owned, long before I started to use WinMo, has failed to notify me of voice messages on numerous occasions.
This is as basic as keeping a backup copy of whatever important paper or project you are working on. It should be done with ALL phones, even the infallible iPhone.
I bet I could make an iPhone fail
MooGoo said:
Wait...your phone froze while you were talking to the CEO of this company, and you couldn't call him back for TWO DAYS???
Ever hear of using another phone? Or a land line?
And I'm not sure what your problem with voice messages was. If you left them messages and they did not receive them, it's their voicemail systems fault, not WinMo's.
If WinMo did not notify you of voice messages that you had waiting, then simply call your voicemail number regardless of whether your phone says you have any or not. You could even call it from a different phone. Not doing so, especially when you are expecting important calls, is simply negligent. Every phone I have ever owned, long before I started to use WinMo, has failed to notify me of voice messages on numerous occasions.
This is as basic as keeping a backup copy of whatever important paper or project you are working on. It should be done with ALL phones, even the infallible iPhone.
Click to expand...
Click to collapse
Totally agree with moogoo here. The voicemail issue isn't really a hardware issue as much as it is YOU not checking your voicemail or them having issues with there voicemail. Not calling the CEO back right away AFTER you reset your phone... I just couldnt imagine the phone freezing on me and not reseting it and calling the person back right away.
You havn't said whether you are running a stock rom or a custom rom on your phone. If it's stock and you are having these issues I would probably go to where you bought the phone and just have them give you a new one as I've never heard of people having that many issues with their phone. If its a custom rom, the only time I hear of people having the issues you are having is because after flashing their phone they didnt do a hard reset after the initial boot up to make sure everything installs properly. 9 times out of 10 if your phone freezes as much as it does you probably just need to do a hard reset.
Now, the comment about it locking up and what not... if it does it every few days, well guess what. It's a freaking computer! I don't know about you but I dont leave my PC or laptop running for days at a time and expect it to be running as fast as it should. I usually turn those off every night or when I'm not using them. Now we cant just go ahead and turn our phones off at night that doesnt make sense BUT you can at least do a soft reset every now and again and it should speed things up. I know myself I do this at least every 2 days. Again... if it's being as glitchy as it is odds are you just need a hard reset. Try running one of NRG's roms as they seem to be the best out there, at least from the ones I've tried.
So moral of your story.... you need to hard reset your phone once if not twice after you install a new rom..... you need to check your voicemail even when it doesnt show you have missed calls.... you need to call people back immediatly after your phone crashes... dont just put the phone down and hope that it starts working again. They have the reset button on their for a reason!
Edited below
MooGoo said:
Wait...your phone froze while you were talking to the CEO of this company, and you couldn't call him back for TWO DAYS???
Ever hear of using another phone? Or a land line?
And I'm not sure what your problem with voice messages was. If you left them messages and they did not receive them, it's their voicemail systems fault, not WinMo's.
If WinMo did not notify you of voice messages that you had waiting, then simply call your voicemail number regardless of whether your phone says you have any or not. You could even call it from a different phone. Not doing so, especially when you are expecting important calls, is simply negligent. Every phone I have ever owned, long before I started to use WinMo, has failed to notify me of voice messages on numerous occasions.
This is as basic as keeping a backup copy of whatever important paper or project you are working on. It should be done with ALL phones, even the infallible iPhone.
Click to expand...
Click to collapse
Aaron McCarthy said:
Totally agree with moogoo here. The voicemail issue isn't really a hardware issue as much as it is YOU not checking your voicemail or them having issues with there voicemail. Not calling the CEO back right away AFTER you reset your phone... I just couldnt imagine the phone freezing on me and not reseting it and calling the person back right away.
You havn't said whether you are running a stock rom or a custom rom on your phone. If it's stock and you are having these issues I would probably go to where you bought the phone and just have them give you a new one as I've never heard of people having that many issues with their phone. If its a custom rom, the only time I hear of people having the issues you are having is because after flashing their phone they didnt do a hard reset after the initial boot up to make sure everything installs properly. 9 times out of 10 if your phone freezes as much as it does you probably just need to do a hard reset.
Now, the comment about it locking up and what not... if it does it every few days, well guess what. It's a freaking computer! I don't know about you but I dont leave my PC or laptop running for days at a time and expect it to be running as fast as it should. I usually turn those off every night or when I'm not using them. Now we cant just go ahead and turn our phones off at night that doesnt make sense BUT you can at least do a soft reset every now and again and it should speed things up. I know myself I do this at least every 2 days. Again... if it's being as glitchy as it is odds are you just need a hard reset. Try running one of NRG's roms as they seem to be the best out there, at least from the ones I've tried.
So moral of your story.... you need to hard reset your phone once if not twice after you install a new rom..... you need to check your voicemail even when it doesnt show you have missed calls.... you need to call people back immediatly after your phone crashes... dont just put the phone down and hope that it starts working again. They have the reset button on their for a reason!
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Click to collapse
Hey guys, sorry for the late response.
Well this is what happen. The CEO called me to talk to me about the job but at this very time my phone was frozen and hiccuping without my knowledge. When it does this it just rejects all my calls, but for some reason I never got the missed call or anything. It didn't even show up on screen. My phone randomly hiccups and when it does this everything is ignored, I won't get a missed call, it's like my phone is off. I didn't even get a voice mail message. When I checked my voicemail because one of my friends left me one after I ignored his call it finally gave me a message and it said I had 2 missed voicemails. I thought it was strange that he left 2 voice mails even though I only had his only miss call.. and then I realized he didn't leave 2 voice mails. I heard the voice of the CEO, he said for me to try and call him back. I checked the receipt and it was 2 days late! I called back right away.
I left him a voice mail back, but he left on a business trip and had to select someone else... which happen to be my classmate
And yes, it hiccups all the time. A large part of it is due to the amount of text I receive but not all the time. Under my GFs name we have about 1000s of text saved up and it causes the phone to lag sometimes.
Other lags and hiccups happen randomly when I'm trying to do simple things.
I know you guys are probably angry because I'm talking smack about our phones but please, I really wasn't expecting these kinds of problems with my phones. I'm not some kind of iPhone user disguised to troll.
Some of you guys don't' get the problem, yes you guys are lucky. Maybe have different models. But some of us here do.
Don't be quick to judge me so harshly. I'm only a guy here trying to set a realistic complaint because Windows Mobile should release updates more often, we deserve it, and you guys know we deserve it. By not complaining and pretending these problems don't exist gives Windows a right to not want to optimize their OS.
Thanks Lennzy for PMing me possible solutions to fixing my phone and not trying to give me some kind of life advice where you don't even know what happen.
The way the market is going right now, I just don't want to go through this again... it's such a bad experience... maybe it's fate, maybe I wasn't meant for the job and some other better company will call me. But for the time being I need to fix this phone or get a basic phone to just receive and give calls.
You got two new pm's
It's still prudent to check your voicemail at least once a day regardless of phone notifications. One good failsafe, if you can manage it, is to set things up so you automatically receive emails informing you of new voicemail (this is setup for me through Exchange at work, but I'm sure there are other ways).
As previously mentioned, the problems you are having are far from normal. I'm running a cooked ROM with all kinds of incredible hacks and tweaks, so much so that I'd expect the thing to break more often, but it is just as stable and usable as ever.
Not trying to give you life lessons, just pointing out one that you surely already learned.
Slim, are you in the US? If so, at least a temporary solution might be to use Google voice...it'll take over your voicemail functions, and can notify you via e-mail whenever you get a VM, and it'll even send you a transcript and a downloadable audio file of the message
Aaron McCarthy said:
I don't know about you but I dont leave my PC or laptop running for days at a time and expect it to be running as fast as it should
Click to expand...
Click to collapse
Try Linux - my home server's been up for 3 months without issue and my misses laptop's often on for weeks
Honestly ever since XP I've had no problem leaving my Windows box running for long periods of time.
Most often the only reason it needs to be reset is because of some update.
Linux is not infallible in this matter. While the core OS is extremely stable, very often the window manager, especially Gnome and KDE can be very buggy and prone to crashing.
Of course it is easy enough to drop out of Xwindows and restart it without restarting the entire OS.
Hi there.
My M9 has a strange problem where it rejects phone calls on a seemingly random basis. When I try to call the phone from a landline or another mobile it shows no sign that there's an incoming call. The phone making the call hears a ringing tone twice, and then only a beeping (like an engaged tone but with one beep longer than the other). The odd part is that it doesn't always happen. I get the occasional cold call come through, and sometimes people phoning me can get through, but at other times they can't. It seems consistent that when I'm at home in the evenings it rejects all calls. I'm sitting at home now and if I try to phone from a landline or mobile it won't get through yet the phone is showing full signal and can make calls. I've tried with WiFi and mobile data on and off and rebooting the phone to no avail. SMS messages come through fine all the time.
I've contacted my network (Virgin mobile UK) and they've issued a replacement SIM - same problem. I've tried the SIM in a Nokia and it seems to work perfectly, so I've come to the conclusion it must be the M9 causing this.
To start with I was on the stock HTC Android, and I've not got any auto-reject settings turned on (that I can see). To try and solve this I've done a factory reset via the phone, and when that didn't work I tried doing a complete wipe and installing TWRP recovery and ViperOneM9. It still rejects calls!
Anyone got any ideas? I've tried searching for this but all the posts seem to be about setting up auto rejects, or not receiving any calls at all. Are there any logs I could look at to see if the M9 is getting the call but then rejecting it without my knowledge? Any hints here would be appreciated!
TIA
Flash the stock firmware via SD card method. It seems like a cliché but it really solves most problems both software and hardware. If it doesn't then you know you have bigger issues.
I'd place a bet that you have a rogue app abusing it's call permissions but it'd take ages to find it.
shivadow said:
Flash the stock firmware via SD card method. It seems like a cliché but it really solves most problems both software and hardware. If it doesn't then you know you have bigger issues.
I'd place a bet that you have a rogue app abusing it's call permissions but it'd take ages to find it.
Click to expand...
Click to collapse
Thank you. I started doing that but had some problems, so in the end I bought a new phone, and lo and behold I had the same problem as I had with the HTC, and that was when the phone was fresh out of the box before I'd installed any apps.
After a LOT of playing around with settings, I've now figured out that if I have 4G turned on when I'm at home then all calls are rejected, even if WiFi is also turned on. Forcing the phone to use 3G when I'm at home means I get calls, and if I have 4G turned on when I'm at work I get calls OK. I guess the test with the Nokia worked OK as it wasn't a 4G phone.
After repeated calls to Virgin they've finally admitted that there's a fault on the phone mast close to my house, and by the sounds of it they have a lot of open tickets for that mast. As they use EE's network they say they can't do anything until EE pull their finger out, but as I've had the issue for months I bet it won't be anytime soon. For now I'll have to switch to 4G manually whenever I'm away from home and try to remember to put it back to 3G when I get back. Not ideal but at least I know what the problem is now!
Thanks for your suggestion, even though it wouldn't have worked in this case.