H wont work if you are set to gsm only. (in theory).Try wcdma only. This wont help why you weren't getting data to begin with. I suspect your apn settings are incorrect or, one of the settings that is on your phone is not correct. Sadly there are a few settings that kill your internet connection as opposed to just one.
What do you get with wcdma only?

 

Also and I suspect its unconnected, but you know that o2 are blocking alot off payg internet? Thats the rumor I heard? Twitter is just one example that you cant do! Not on payg!

 

Ok, looks like your getting there in incremental steps? Ie did you have the up and down arrows before, even if they weren't together? Ive had this before kinda like stepping stones before full connection. If I were you, id have a read about connection problems on this site or over at xda.
I suspect simply removing the battery a few times might clear it.
Many people have connection issues with the desire. I use to, but thankfully a kinda makeshift fix helped me and I only lost connection once in about 3 weeks now. (i use to get it 3 times a day!) It came in different manners, and I could never work out why. To this day I think its too many ways of activating the internet and one of them not matching up crashing things or causing a bug.
If your issue is the same, people got round it by switching to aeroplane mode and back again. This usually works, if not turn off, battery out and back in, them give it another go. That usually works if the first method dont. I say the word usually! The problem is, it might keep doing this to you through the day. Can you take the phone back, some phones dont seem effected, but many are?
Mine was fixed petty much after doing the old 4636 method that someone pointed out, but not sure if your issue is the same.

 

Errrm, ive had my apn settings greyed out before so I couldn't access them. I feel your pain but not sure what to suggest. Are you powering off , waiting, and then taking thee battery out? Ive had to do this about 3 times before. When you hold down the power button, what does your connection say? Have you got the internet widget, is it stuck on or off? Or can you see what your connection says from the apn settings (ie, trying to connect, waiting to connect, not connected, connected?) When I had the above issues, rebooting/removing battery got me incrementally back on line.

 

Yeah I reckon your having the same issue that I had once. Im assuming though that your sim is activated. Thankfully i only had this issue once. Reboots didn't help, but on checking things they slowly, incrementally came back. I reckon your gonna need to do the old 4636 trick/auto prl (procedure escapes just now but ill get back to you, but dont think this wool help get you connection, it just prevents you from loosing it when you dont want to) had worked for many people)
Keep rebooting whilst I find that link. By the way, what you like on wifi?

 

Have you ever had a connection, your apn settings are correct? Does the orange sim card give you the correct settings automatically after about 5 mins, power on,off you should have orange settings? Tried sending yourself an mms?, this is another way ive got slightly wrong apn settings forced through before?

 

Are you saying the orange internet works fine with no issues? Dont rely on the o2 settings. My o2 settings always need adjusting! My orange sim always gets it right first time. My o2 dont.

And by the way, I might be wrong here, but I heard a podcast this week that said o2 were restricting payg internet capabilites! And im pretty sure they said email in some form was effected.

An mms is a photo sms! But send it to yourself. The chance are you wont get it but, by sending it to yourself it somehow sometimes forces the settings through.

 

Heres my o2 settings but they are on contract so yours will be different as the header will say something like payg. But i guess you could try and se if it works, but keep the header if it says pay and go or payg or anything like that. Also im not sure if the password is password, or o2web and then o2wap etc. but theres settings might do the trick.

Note, on the second apn setting it says wifi homepage or something like that.this is because i cannot post that url. At that entry put http://wap dot o2 dot co dot uk( replace dot with .)
now lets see if that comes out!





name. O2 MOBILE WEB

APN mobile.o2.co.uk

proxy not set

port not set

username o2web

password password

server not set

mms port not set

mms protocol WAP 2.0

MCC 234

MNC 10

auth type not set

APN type default




MMS

I had to enter a second apn

name o2 MMS

APN wap.o2.co.uk

proxy Wifi Homepage New
port 9201

username o2wap

password password

server http://mmsc.mms.o2.co.uk:8002

mmsc http://mmsc.mms.o2.co.uk:8002

mms proxy 193.113.200.195

mms port 8080

mms protocol WAP 2.0

MCC 234

MNC 10

authentication type not set

apn type mms

 

Ok last post. Hourly you picked up my amendment. On that second proxy setting. Also im oretty sure the first password is o2web. And the 2nd password is o2wap.

Regarding o2. Its o2's payg vpn. Web only, no email, twitter,facebook. Iphone is not effected apparently!

 

http://androidforums.com/514631-post14.html

 

Hi Albert.i am on Orange and my Desire is doing the same had id three weeks now,it works on wifi at home fine but is just not connecting to the internet when I am away from home,When i first had it it was fine (i have gone through my settings with Orange and they are stuffed,they have told me to re boot to factory settings not done that yet)
Help

 

Look at the number on your SIM, does it end 3g?